HD 222582: Difference between revisions
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{{short description|Multiple star system in the constellation Aquarius}} |
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{{Starbox begin |
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{{Starbox begin}} |
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| name = [[Henry Draper catalogue|HD]] 222582 |
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}} |
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{{Starbox observe |
{{Starbox observe |
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| epoch = J2000 |
| epoch = J2000 |
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| constell=[[Aquarius (constellation)|Aquarius]] |
| constell = [[Aquarius (constellation)|Aquarius]] |
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| ra = {{RA|23|41|51. |
| ra = {{RA|23|41|51.5301}}<ref name="Gaia DR3"/> |
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| dec = {{DEC|–05|59|08. |
| dec = {{DEC|–05|59|08.729}}<ref name="Gaia DR3"/> |
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| appmag_v = 7.685 |
| appmag_v = {{val|7.685|0.005}}<ref name=mnras384_1_173/> |
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}} |
}} |
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{{Starbox character |
{{Starbox character |
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| type = [[Main sequence]] |
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| class=G5 |
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|component1= HD 222582A |
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| b-v=0.648 |
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|component2= HD 222582B |
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| u-b= |
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| class = G5V<ref name=Houk_Swift_1999/> |
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| variable= |
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|class2=M4.5V<ref name=Montes2018/> |
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| b-v = {{val|0.648|0.002}}<ref name=Lorenzo-Oliveira_et_al_2018/> |
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| u-b = |
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| variable = |
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}} |
}} |
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{{Starbox astrometry |
{{Starbox astrometry |
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| radial_v |
| radial_v = {{val|+12.020|0.0004}}<ref name=Soubiran_et_al_2018/> |
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| prop_mo_ra = |
| prop_mo_ra = {{val|−145.492|(29)}} |
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| prop_mo_dec = |
| prop_mo_dec = {{val|−111.458|(21)}} |
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| pm_footnote = <ref name="Gaia DR3"/> |
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| parallax = 23.94 |
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| |
| parallax = 23.7955 |
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| p_error = 0.0238 |
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| parallax_footnote = <ref name="van Leeuwen2007"/> |
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| |
| parallax_footnote = <ref name="Gaia DR3"/> |
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| absmag_v = {{val|4.44|0.12}}<ref name=mnras384_1_173/> |
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}} |
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{{Starbox relpos |
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| reference = <ref name=Montes2018/> |
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| epoch = 2018 |
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| primary = HD 222582A |
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| component = HD 222582B |
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| angdistsec = 109.56{{±|0.18}} |
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| angdistmas = |
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| angdistref = <!--Reference for angular distance --> |
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| posang = 299.52{{±|0.03}} |
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| posangref = <!--Reference for position angle --> |
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| projsep = {{val|4637|59|ul=AU}} |
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| projsepref = <!--Reference for projected separation --> |
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}} |
}} |
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{{Starbox detail |
{{Starbox detail |
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| component1 = A |
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| mass=1.00<ref name=mnras384_1_173/> |
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|component2=Ba+Bb |
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| radius=1.16 ± 0.07<ref name=mnras384_1_173/> |
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| mass = {{val|0.993|0.035}}<ref name=Soto_Jenkins_2018/> |
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| luminosity=1.2 |
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| |
|mass2=0.2<ref name=oepc/> |
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| |
| radius = {{val|1.137|0.017}}<ref name=Soto_Jenkins_2018/> |
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| |
| luminosity = {{val|1.302|0.005|0.004}}<ref name="Gaia DR2"/> |
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| temperature = {{Val|5790|3|fmt=commas}}<ref name=Lorenzo-Oliveira_et_al_2018/> |
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| rotational_velocity=1.5 ± 1.0<ref name=mnras384_1_173/> |
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| gravity = {{Val|4.370|0.009}}<ref name=Lorenzo-Oliveira_et_al_2018/> |
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| age_gyr=6.16 |
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| metal_fe = {{Val|−0.005|0.003}}<ref name=Lorenzo-Oliveira_et_al_2018/> |
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| rotational_velocity = {{Val|1.74|0.12}}<ref name=dosSantos2016/> |
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| age_gyr = {{val|6.7|0.3}}<ref name=Lorenzo-Oliveira_et_al_2018/> |
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}} |
}} |
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{{Starbox catalog |
{{Starbox catalog |
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| names = {{odlist | BD=-06°6262 | GC=32912 | HD=222582 | HIP=116906 | NLTT=57682 | SAO=146849 | WDS=J23419-0559A|2MASS=J23415154-0559086}}<ref name=SIMBAD/> |
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| names=[[Bonner Durchmusterung|BD]]-06° 6262, [[Boss General Catalogue|GC]] 32912, [[Henry Draper Catalogue|HD]] 222582, [[Hipparcos catalogue|HIP]] 116906, [[NLTT]] 57682, [[SPOCS]] 1030, [[Smithsonian Astrophysical Observatory Star Catalog|SAO]] 146849. |
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}} |
}} |
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{{Starbox reference |
{{Starbox reference |
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| Simbad=HD+222582 |
| Simbad = HD+222582 |
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}} |
}} |
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|- style="background-color: #A0B0FF;" colspan="3" |
|- style="background-color: #A0B0FF;" colspan="3" |
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| '''HD 222582 b''' || [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD+222582b Data Simbad] |
| '''HD 222582 b''' || [http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HD+222582b Data Simbad] |
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|- bgcolor="#FFFAFA" |
|- bgcolor="#FFFAFA" |
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| || [http://exoplanet.eu/star.php?st=HD+222582 Data ExoPlanet] |
| || [https://web.archive.org/web/20071106055720/http://exoplanet.eu/star.php?st=HD+222582 Data ExoPlanet] |
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{{starbox sources|HIP|CCDM|HR}} |
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{{Starbox end}} |
{{Starbox end}} |
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'''HD 222582''' is a multiple [[star]] system in the [[celestial equator|equatorial]] [[constellation]] of [[Aquarius (constellation)|Aquarius]]. It is invisible to the naked eye with an [[apparent visual magnitude]] of 7.7,<ref name=mnras384_1_173/> but can be viewed with binoculars or a small telescope.<ref name=ICQ/> The system is located at a distance of 137 [[light year]]s from the [[Sun]] based on [[stellar parallax|parallax]],<ref name="Gaia DR3"/> and it is drifting further away with a [[radial velocity]] of +12 km/s.<ref name=Soubiran_et_al_2018/> It is located close enough to the [[ecliptic]] that it is subject to [[lunar occultation]]s.<ref name=Richichi2003/> |
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'''HD 222582''' is a [[apparent magnitude|magnitude]] 7.7 [[star]] approximately 136 [[light-year]]s away in the [[constellation]] of [[Aquarius (constellation)|Aquarius]]. In 1999, a dense [[superjovian]] [[extrasolar planet|planet]] was announced orbiting the star by [[Steven Vogt]]. |
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There is a [[red dwarf]] companion star in a wide orbit. |
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The primary member of this system, designated component A, is an ordinary [[G-type main-sequence star]] with a [[stellar classification]] of G5V.<ref name=Houk_Swift_1999/> The physical properties of the star are similar enough to the Sun that it is considered a candidate [[solar twin]].<ref name=Reddy_Lambert_2017/><ref name=Lorenzo-Oliveira_et_al_2018/> It is about 6.5<ref name=dosSantos2016/> billion years old with an [[Chromospheric activity|inactive chromosphere]]<ref name=Reddy_Lambert_2017/> and is spinning with a low [[projected rotational velocity]] of 1.7 km/s.<ref name=dosSantos2016/> The mass<ref name=Soto_Jenkins_2018/> and [[metallicity]]<ref name=Lorenzo-Oliveira_et_al_2018/> of this star are essentially the same as the Sun. It has a 14% larger radius and is radiating 1.3 times the luminosity of the Sun from its [[photosphere]] at an [[effective temperature]] of 5,790 K.<ref name=Lorenzo-Oliveira_et_al_2018/> |
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Component B of this system is a [[close binary]]<ref name="Riddle2015"/><ref name="Raghavan2006"/> system with the components designated HD 222582 Ba and Bb. The pair have a combined class of M4.5 V+<ref name=Montes2018/> and about 20% the mass of the Sun.<ref name=oepc/> |
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==Planetary system== |
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In November 1999, a dense [[superjovian]] [[extrasolar planet|planet]] was announced orbiting the primary by the [[California and Carnegie Planet Search]]. Designated component 'b', it was discovered using the [[radial velocity method]], using 24 observations over a period of 1.5 years. The exoplanet is orbiting with a period of {{convert|572|days|years|disp=out|abbr=off}} and a very large [[orbital eccentricity|eccentricity]] of 0.76, ranging in distance from {{val|0.39|u=AU}} out to {{val|2.31|u=AU}} away from the primary.<ref name="Keck"/><ref name="Vogt2000"/> |
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{{OrbitboxPlanet begin |
{{OrbitboxPlanet begin |
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|name = HD 222582 |
| name = HD 222582 |
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}} |
}} |
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{{OrbitboxPlanet |
{{OrbitboxPlanet |
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| exoplanet = [[HD 222582 b|b]] |
| exoplanet = [[HD 222582 b|b]] |
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| mass = |
| mass = 8.37<ref name=exoplanets/> |
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| period = 572 |
| period = 572 |
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| semimajor = 1.35 |
| semimajor = 1.35 |
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| eccentricity = 0.76 |
| eccentricity = 0.76 |
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| year = 1999 |
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}} |
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{{OrbitboxPlanet hypothetical |
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| exoplanet = c |
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| mass = >0.0513 |
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| period = 15.144 |
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| semimajor = 0.12 |
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| eccentricity = 0.5632 |
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| year = 2006 |
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}} |
}} |
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{{Orbitbox end}} |
{{Orbitbox end}} |
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== |
==See also== |
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* [[HD 224693]] |
* [[HD 224693]] |
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* [[List of |
* [[List of exoplanets discovered before 2000]] - [[HD 222582 b]] |
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== References == |
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==References== |
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{{reflist|refs= |
{{reflist|refs= |
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<ref name="Gaia DR2">{{Cite Gaia DR2|2440578577126302336}}</ref> |
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<ref name=mnras384_1_173>{{citation | last1=Fuhrmann | first1=Klaus | title=Nearby stars of the Galactic disc and halo - IV | journal=[[Monthly Notices of the Royal Astronomical Society]] | volume=384 | issue=1 | pages=173–224 |date=February 2008 | doi=10.1111/j.1365-2966.2007.12671.x | bibcode=2008MNRAS.384..173F }}</ref> |
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<ref name="Gaia DR3">{{Cite Gaia DR3|2440578577126302336}}</ref> |
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<ref name="van Leeuwen2007">{{cite journal | title=Validation of the new Hipparcos reduction | url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL | last1=van Leeuwen | first1=F. | journal=Astronomy and Astrophysics | volume=474 | issue=2 | pages=653–664 | year=2007 | arxiv=0708.1752 | bibcode=2007A&A...474..653V | doi=10.1051/0004-6361:20078357 }} [http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=116516 Vizier catalog entry ] </ref> |
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<ref name=Montes2018>{{cite journal |
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}} |
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| title=Calibrating the metallicity of M dwarfs in wide physical binaries with F-, G-, and K-primaries - I: High-resolution spectroscopy with HERMES: stellar parameters, abundances, and kinematics |
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| last1=Montes | first1=D. | last2=González-Peinado | first2=R. |
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| last3=Tabernero | first3=H. M. | last4=Caballero | first4=J. A. |
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| last5=Marfil | first5=E. | last6=Alonso-Floriano | first6=F. J. |
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| last7=Cortés-Contreras | first7=M. | last8=González Hernández | first8=J. I. |
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| last9=Klutsch | first9=A. | last10=Moreno-Jódar | first10=C. |
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| display-authors=1 | journal=Monthly Notices of the Royal Astronomical Society |
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| volume=479 | issue=1 | pages=1332–1382 | date=September 2018 |
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| doi=10.1093/mnras/sty1295 | arxiv=1805.05394 |
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| bibcode=2018MNRAS.479.1332M | s2cid=119260219 }}</ref> |
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<ref name=Soto_Jenkins_2018>{{cite journal |
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* {{cite journal | author=S. S. Vogt ''et al.'' | title=Six New Planets from the Keck Precision Velocity Survey | journal=[[The Astrophysical Journal]] | year=2000 | volume=536 | issue=2 | pages=902–914 | doi=10.1086/308981 | bibcode=2000ApJ...536..902V|arxiv = astro-ph/9911506 }} |
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| title=Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES). I. Code description and dwarf stars catalogue |
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* {{cite journal | author=D. Raghavan ''et al.'' | title=Two Suns in The Sky: Stellar Multiplicity in Exoplanet Systems | journal=[[The Astrophysical Journal]] | volume=646 | issue=1 | pages=523–542 | year=2006 | doi=10.1086/504823 | bibcode=2006ApJ...646..523R|arxiv = astro-ph/0603836 }} |
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| last1=Soto | first1=M. G. | last2=Jenkins | first2=J. S. |
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| journal=Astronomy & Astrophysics |
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| volume=615 | id=A76 | pages=28 | date=July 2018 |
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| arxiv=1801.09698 | bibcode=2018A&A...615A..76S |
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| doi=10.1051/0004-6361/201731533 | s2cid=119107228 }}</ref> |
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<ref name=Lorenzo-Oliveira_et_al_2018>{{cite journal |
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== External links == |
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| title=The Solar Twin Planet Search. The age-chromospheric activity relation |
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| display-authors=1 | last1=Lorenzo-Oliveira | first1=Diego |
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| last2=Freitas | first2=Fabrício C. | last3=Meléndez | first3=Jorge |
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| last4=Bedell | first4=Megan | last5=Ramírez | first5=Iván |
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| last6=Bean | first6=Jacob L. | last7=Asplund | first7=Martin |
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| last8=Spina | first8=Lorenzo | last9=Dreizler | first9=Stefan |
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| last10=Alves-Brito | first10=Alan | last11=Casagrande | first11=Luca |
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| journal=Astronomy & Astrophysics |
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| volume=619 | id=A73 | pages=10 | date=November 2018 |
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| arxiv=1806.08014 | bibcode=2018A&A...619A..73L |
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| doi=10.1051/0004-6361/201629294 | s2cid=118995412 }}</ref> |
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<ref name=Reddy_Lambert_2017>{{cite journal |
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| title=Solar Twins and the Barium Puzzle |
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| last1=Reddy | first1=Arumalla B. S. | last2=Lambert | first2=David L. |
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| journal=The Astrophysical Journal |
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| volume=845 | issue=2 | id=151 | pages=14 | date=August 2017 |
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| arxiv=1707.07051 | bibcode=2017ApJ...845..151R |
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| doi=10.3847/1538-4357/aa81d6 | s2cid=119232784 | doi-access=free }}</ref> |
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<ref name=Richichi2003>{{cite journal |
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| title=Lunar occultations of stars with exoplanet candidates |
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| last=Richichi | first=A. |
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| journal=Astronomy and Astrophysics |
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| volume=397 | pages=1123–1127 | date=January 2003 |
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| issue=3 | bibcode=2003A&A...397.1123R | doi=10.1051/0004-6361:20021585 | doi-access=free }}</ref> |
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<ref name=ICQ>{{cite web |
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| title=The astronomical magnitude scale |
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| work=International Comet Quarterly |
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| url=http://www.icq.eps.harvard.edu/MagScale.html |
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| access-date=2020-12-31 }}</ref> |
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<ref name=Houk_Swift_1999>{{cite journal |
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| last1=Houk | first1=N. | last2=Swift | first2=C. |
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| title=Michigan catalogue of two-dimensional spectral types for the HD Stars |
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| journal=Michigan Spectral Survey |
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| volume=5 | year=1999 | bibcode=1999MSS...C05....0H }}</ref> |
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<ref name=SIMBAD>{{cite simbad | title=HD 222582 | access-date=2020-12-31 }}</ref> |
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<ref name=Soubiran_et_al_2018>{{cite journal |
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| title=Gaia Data Release 2. The catalogue of radial velocity standard stars |
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| last1=Soubiran | first1=C. | last2=Jasniewicz | first2=G. |
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| last3=Chemin | first3=L. | last4=Zurbach | first4=C. |
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| last5=Brouillet | first5=N. | last6=Panuzzo | first6=P. |
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| last7=Sartoretti | first7=P. | last8=Katz | first8=D. |
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| last9=Le Campion | first9=J. -F. | last10=Marchal | first10=O. |
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| last11=Hestroffer | first11=D. | last12=Thévenin | first12=F. |
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| last13=Crifo | first13=F. | last14=Udry | first14=S. |
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| last15=Cropper | first15=M. | last16=Seabroke | first16=G. |
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| last17=Viala | first17=Y. | last18=Benson | first18=K. |
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| last19=Blomme | first19=R. | last20=Jean-Antoine | first20=A. |
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| last21=Huckle | first21=H. | last22=Smith | first22=M. |
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| last23=Baker | first23=S. G. | last24=Damerdji | first24=Y. |
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| last25=Dolding | first25=C. | last26=Frémat | first26=Y. |
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| last27=Gosset | first27=E. | last28=Guerrier | first28=A. |
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| last29=Guy | first29=L. P. | last30=Haigron | first30=R. |
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| display-authors=1 | journal=Astronomy and Astrophysics |
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| volume=616 | pages=A7 | year=2018 |
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| bibcode=2018A&A...616A...7S | arxiv=1804.09370 |
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| doi=10.1051/0004-6361/201832795 | s2cid=52952408 }}</ref> |
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<ref name=dosSantos2016>{{cite journal |
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| title=The Solar Twin Planet Search. IV. The Sun as a typical rotator and evidence for a new rotational braking law for Sun-like stars |
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| display-authors=1 | last1=dos Santos | first1=Leonardo A. |
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| last2=Meléndez | first2=Jorge | last3=do Nascimento | first3=José-Dias |
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| last4=Bedell | first4=Megan | last5=Ramírez | first5=Iván |
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| last6=Bean | first6=Jacob L. | last7=Asplund | first7=Martin |
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| last8=Spina | first8=Lorenzo | last9=Dreizler | first9=Stefan |
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| last10=Alves-Brito | first10=Alan | last11=Casagrande | first11=Luca |
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| journal=Astronomy & Astrophysics | volume=592 | id=A156 | pages=8 | date=August 2016 |
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| doi=10.1051/0004-6361/201628558 | bibcode=2016A&A...592A.156D |arxiv = 1606.06214 | s2cid=53533614 }}</ref> |
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<ref name="Keck">{{cite press release |
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| title=Astronomers discover six new planets orbiting nearby stars |
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| date=November 1, 1999 | publisher=W. M. Keck Observatory | location=Kamuela, Hawaii |
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| url=http://www.keckobservatory.org/astronomers_discover_six_new_planets_orbiting_nearby_stars/ |
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| access-date=December 19, 2017 }}</ref> |
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<ref name=mnras384_1_173>{{cite journal |
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| last=Fuhrmann | first=Klaus |
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| title=Nearby stars of the Galactic disc and halo - IV |
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| journal=[[Monthly Notices of the Royal Astronomical Society]] |
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| volume=384 | issue=1 | pages=173–224 | date=February 2008 |
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| doi=10.1111/j.1365-2966.2007.12671.x | doi-access=free |
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| bibcode=2008MNRAS.384..173F }}</ref> |
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<ref name="Raghavan2006">{{cite journal |
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| title=Two Suns in the Sky: Stellar Multiplicity in Exoplanet Systems |
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| last1=Raghavan | first1=Deepak | last2=Henry | first2=Todd J. |
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| last3=Mason | first3=Brian D. | last4=Subasavage | first4=John P. |
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| last5=Jao | first5=Wei-Chun | last6=Beaulieu | first6=Thom D. |
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| last7=Hambly | first7=Nigel C. | display-authors=1 |
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| arxiv=astro-ph/0603836 | bibcode=2006ApJ...646..523R |
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| journal=The Astrophysical Journal |
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| volume=646 | issue=1 | pages=523–542 | year=2006 |
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| doi=10.1086/504823 | s2cid=5669768 }}</ref> |
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<ref name="Riddle2015">{{cite journal |
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| title=A Survey of the High Order Multiplicity of Nearby Solar-type Binary Stars with Robo-AO |
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| last1=Riddle | first1=Reed L. | last2=Tokovinin | first2=Andrei |
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| last3=Mason | first3=Brian D. | last4=Hartkopf | first4=William I. |
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| last5=Roberts Jr. | first5=Lewis C. | last6=Baranec | first6=Christoph |
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| last7=Law | first7=Nicholas M. | last8=Bui | first8=Khanh |
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| last9=Burse | first9=Mahesh P. | last10=Das | first10=H. K. |
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| last11=Dekany | first11=Richard G. | last12=Kulkarni | first12=Shrinivas |
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| last13=Punnadi | first13=Sujit | last14=Ramaprakash | first14=A. N. |
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| last15=Tendulkar | first15=Shriharsh P. | display-authors=1 |
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| journal=The Astrophysical Journal |
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| volume=799 | issue=1 | at=4 | year=2015 |
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| arxiv=1411.0682 | bibcode=2015ApJ...799....4R |
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| doi=10.1088/0004-637X/799/1/4 | s2cid=5642378 }}</ref> |
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<ref name="Vogt2000">{{cite journal |
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| title=Six New Planets from the Keck Precision Velocity Survey |
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| last1=Vogt | first1=Steven S. | last2=Marcy | first2=Geoffrey W. |
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| last3=Butler | first3=R. Paul | last4=Apps | first4=Kevin |
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| display-authors=1 | journal=The Astrophysical Journal |
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| volume=536 | issue=2 | pages=902–914 | year=2000 |
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| arxiv=astro-ph/9911506 | bibcode=2000ApJ...536..902V |
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| doi=10.1086/308981 | s2cid=119375519 }}</ref> |
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<ref name=oepc>{{cite web |
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| title=HD 222582 |
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| work=Open Exoplanet Catalogue |
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| url=http://www.openexoplanetcatalogue.com/planet/HD%20222582%20A%20b/ |
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| access-date=2020-12-31 }}</ref> |
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<ref name=exoplanets>{{cite web |
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| title=HD 222582 b |
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| work=Exoplanet Catalogue |
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| publisher=NASA Astrophysics Division |
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| url=https://exoplanets.nasa.gov/exoplanet-catalog/6845/hd-222582-b/ |
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| access-date=2020-12-31 }}</ref> |
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}} |
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==External links== |
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* {{cite web | url=http://aladin.u-strasbg.fr/AladinPreview?-c=23+41+51.5299-05+59+08.726&ident=NLTT+57682&submit=Aladin+previewer | title=HD 222582 Image | work=Simbad}} |
* {{cite web | url=http://aladin.u-strasbg.fr/AladinPreview?-c=23+41+51.5299-05+59+08.726&ident=NLTT+57682&submit=Aladin+previewer | title=HD 222582 Image | work=Simbad}} |
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{{Sky|23|41|51.5299|-|05|59|08.726|136.8}} |
{{Sky|23|41|51.5299|-|05|59|08.726|136.8}} |
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{{Stars of Aquarius}} |
{{Stars of Aquarius}} |
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{{DEFAULTSORT:HD 222582}} |
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[[Category:G-type main-sequence stars]] |
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[[Category:M-type main-sequence stars]] |
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[[Category:Solar twins]] |
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[[Category:Planetary systems with one confirmed planet]] |
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[[Category:Triple stars]] |
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[[Category:Aquarius (constellation)]] |
[[Category:Aquarius (constellation)]] |
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[[Category: |
[[Category:Durchmusterung objects|BD-06 6262]] |
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[[Category:Henry Draper Catalogue objects|222582]] |
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[[Category:Hipparcos objects|116906]] |
[[Category:Hipparcos objects|116906]] |
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[[Category: |
[[Category:2MASS objects|J23415154-0559086]] |
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[[Category:G-type stars]] |
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{{star-stub}} |
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{{main-star-stub}} |
Revision as of 12:46, 9 May 2024
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Aquarius |
Right ascension | 23h 41m 51.5301s[1] |
Declination | –05° 59′ 08.729″[1] |
Apparent magnitude (V) | 7.685±0.005[2] |
Characteristics | |
HD 222582A | |
Evolutionary stage | Main sequence |
Spectral type | G5V[3] |
B−V color index | 0.648±0.002[4] |
HD 222582B | |
Spectral type | M4.5V[5] |
Astrometry | |
Radial velocity (Rv) | +12.020±0.0004[6] km/s |
Proper motion (μ) | RA: −145.492(29) mas/yr[1] Dec.: −111.458(21) mas/yr[1] |
Parallax (π) | 23.7955 ± 0.0238 mas[1] |
Distance | 137.1 ± 0.1 ly (42.02 ± 0.04 pc) |
Absolute magnitude (MV) | 4.44±0.12[2] |
Position (relative to HD 222582A)[5] | |
Component | HD 222582B |
Epoch of observation | 2018 |
Angular distance | 109.56±0.18″ |
Position angle | 299.52±0.03° |
Projected separation | 4637±59 AU AU |
Details | |
A | |
Mass | 0.993±0.035[7] M☉ |
Radius | 1.137±0.017[7] R☉ |
Luminosity | 1.302+0.005 −0.004[8] L☉ |
Surface gravity (log g) | 4.370±0.009[4] cgs |
Temperature | 5,790±3[4] K |
Metallicity [Fe/H] | −0.005±0.003[4] dex |
Rotational velocity (v sin i) | 1.74±0.12[9] km/s |
Age | 6.7±0.3[4] Gyr |
Ba+Bb | |
Mass | 0.2[10] M☉ |
Other designations | |
Database references | |
SIMBAD | data |
Planet | |
HD 222582 b | Data Simbad |
Data ExoPlanet |
HD 222582 is a multiple star system in the equatorial constellation of Aquarius. It is invisible to the naked eye with an apparent visual magnitude of 7.7,[2] but can be viewed with binoculars or a small telescope.[12] The system is located at a distance of 137 light years from the Sun based on parallax,[1] and it is drifting further away with a radial velocity of +12 km/s.[6] It is located close enough to the ecliptic that it is subject to lunar occultations.[13]
The primary member of this system, designated component A, is an ordinary G-type main-sequence star with a stellar classification of G5V.[3] The physical properties of the star are similar enough to the Sun that it is considered a candidate solar twin.[14][4] It is about 6.5[9] billion years old with an inactive chromosphere[14] and is spinning with a low projected rotational velocity of 1.7 km/s.[9] The mass[7] and metallicity[4] of this star are essentially the same as the Sun. It has a 14% larger radius and is radiating 1.3 times the luminosity of the Sun from its photosphere at an effective temperature of 5,790 K.[4]
Component B of this system is a close binary[15][16] system with the components designated HD 222582 Ba and Bb. The pair have a combined class of M4.5 V+[5] and about 20% the mass of the Sun.[10]
Planetary system
In November 1999, a dense superjovian planet was announced orbiting the primary by the California and Carnegie Planet Search. Designated component 'b', it was discovered using the radial velocity method, using 24 observations over a period of 1.5 years. The exoplanet is orbiting with a period of 1.57 years and a very large eccentricity of 0.76, ranging in distance from 0.39 AU out to 2.31 AU away from the primary.[17][18]
Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
---|---|---|---|---|---|---|
b | 8.37[19] MJ | 1.35 | 572 | 0.76 | — | — |
See also
References
- ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c Fuhrmann, Klaus (February 2008). "Nearby stars of the Galactic disc and halo - IV". Monthly Notices of the Royal Astronomical Society. 384 (1): 173–224. Bibcode:2008MNRAS.384..173F. doi:10.1111/j.1365-2966.2007.12671.x.
- ^ a b Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
- ^ a b c d e f g h Lorenzo-Oliveira, Diego; et al. (November 2018). "The Solar Twin Planet Search. The age-chromospheric activity relation". Astronomy & Astrophysics. 619: 10. arXiv:1806.08014. Bibcode:2018A&A...619A..73L. doi:10.1051/0004-6361/201629294. S2CID 118995412. A73.
- ^ a b c Montes, D.; et al. (September 2018). "Calibrating the metallicity of M dwarfs in wide physical binaries with F-, G-, and K-primaries - I: High-resolution spectroscopy with HERMES: stellar parameters, abundances, and kinematics". Monthly Notices of the Royal Astronomical Society. 479 (1): 1332–1382. arXiv:1805.05394. Bibcode:2018MNRAS.479.1332M. doi:10.1093/mnras/sty1295. S2CID 119260219.
{{cite journal}}
: CS1 maint: unflagged free DOI (link) - ^ a b Soubiran, C.; et al. (2018). "Gaia Data Release 2. The catalogue of radial velocity standard stars". Astronomy and Astrophysics. 616: A7. arXiv:1804.09370. Bibcode:2018A&A...616A...7S. doi:10.1051/0004-6361/201832795. S2CID 52952408.
- ^ a b c Soto, M. G.; Jenkins, J. S. (July 2018). "Spectroscopic Parameters and atmosphEric ChemIstriEs of Stars (SPECIES). I. Code description and dwarf stars catalogue". Astronomy & Astrophysics. 615: 28. arXiv:1801.09698. Bibcode:2018A&A...615A..76S. doi:10.1051/0004-6361/201731533. S2CID 119107228. A76.
- ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
- ^ a b c dos Santos, Leonardo A.; et al. (August 2016). "The Solar Twin Planet Search. IV. The Sun as a typical rotator and evidence for a new rotational braking law for Sun-like stars". Astronomy & Astrophysics. 592: 8. arXiv:1606.06214. Bibcode:2016A&A...592A.156D. doi:10.1051/0004-6361/201628558. S2CID 53533614. A156.
- ^ a b "HD 222582". Open Exoplanet Catalogue. Retrieved 2020-12-31.
- ^ "HD 222582". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-12-31.
- ^ "The astronomical magnitude scale". International Comet Quarterly. Retrieved 2020-12-31.
- ^ Richichi, A. (January 2003). "Lunar occultations of stars with exoplanet candidates". Astronomy and Astrophysics. 397 (3): 1123–1127. Bibcode:2003A&A...397.1123R. doi:10.1051/0004-6361:20021585.
- ^ a b Reddy, Arumalla B. S.; Lambert, David L. (August 2017). "Solar Twins and the Barium Puzzle". The Astrophysical Journal. 845 (2): 14. arXiv:1707.07051. Bibcode:2017ApJ...845..151R. doi:10.3847/1538-4357/aa81d6. S2CID 119232784. 151.
- ^ Riddle, Reed L.; et al. (2015). "A Survey of the High Order Multiplicity of Nearby Solar-type Binary Stars with Robo-AO". The Astrophysical Journal. 799 (1). 4. arXiv:1411.0682. Bibcode:2015ApJ...799....4R. doi:10.1088/0004-637X/799/1/4. S2CID 5642378.
- ^ Raghavan, Deepak; et al. (2006). "Two Suns in the Sky: Stellar Multiplicity in Exoplanet Systems". The Astrophysical Journal. 646 (1): 523–542. arXiv:astro-ph/0603836. Bibcode:2006ApJ...646..523R. doi:10.1086/504823. S2CID 5669768.
- ^ "Astronomers discover six new planets orbiting nearby stars" (Press release). Kamuela, Hawaii: W. M. Keck Observatory. November 1, 1999. Retrieved December 19, 2017.
- ^ Vogt, Steven S.; et al. (2000). "Six New Planets from the Keck Precision Velocity Survey". The Astrophysical Journal. 536 (2): 902–914. arXiv:astro-ph/9911506. Bibcode:2000ApJ...536..902V. doi:10.1086/308981. S2CID 119375519.
- ^ "HD 222582 b". Exoplanet Catalogue. NASA Astrophysics Division. Retrieved 2020-12-31.
External links
- "HD 222582 Image". Simbad.