Iota1 Cygni: Difference between revisions
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{{short description|Binary star system in the constellation Cygnus}} |
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{{DISPLAYTITLE:Iota<sup>1</sup> Cygni}} |
{{DISPLAYTITLE:Iota<sup>1</sup> Cygni}} |
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{{other stars by Bayer designation|Iota Cygni{{!}}ι Cygni}} |
{{other stars by Bayer designation|Iota Cygni{{!}}ι Cygni}} |
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}} |
}} |
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{{Starbox catalog |
{{Starbox catalog |
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| names = {{odlist | B=ι<sup>1</sup> Cyg | F=7 Cygni | BD=+52° 2434 | HD=183534 | HIP=95656 | HR=7408 |
| names = {{odlist | B=ι<sup>1</sup> Cyg | F=7 Cygni | BD=+52° 2434 | HD=183534 | HIP=95656 | HR=7408 | SAO=31673 }}<ref name=SIMBAD/> |
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}} |
}} |
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{{Starbox reference |
{{Starbox reference |
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{{reflist|refs= |
{{reflist|refs= |
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<ref name=SIMBAD>{{cite simbad | title=iot01 Cyg | |
<ref name=SIMBAD>{{cite simbad | title=iot01 Cyg | access-date=2016-04-10 }}</ref> |
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<ref name=GaiaDR2>{{cite DR2|2136367795901179136}}</ref> |
<ref name=GaiaDR2>{{cite DR2|2136367795901179136}}</ref> |
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| volume=38 | issue=11 | pages=694–706 | date=November 2012 |
| volume=38 | issue=11 | pages=694–706 | date=November 2012 |
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| doi=10.1134/S1063773712110035 | bibcode=2012AstL...38..694G |
| doi=10.1134/S1063773712110035 | bibcode=2012AstL...38..694G |
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| arxiv=1606.09028 | postscript=. }}</ref> |
| arxiv=1606.09028 | s2cid=119108982 | postscript=. }}</ref> |
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<ref name=Royer2014>{{citation |
<ref name=Royer2014>{{citation |
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| volume=562 | id=A84 | pages=21 | date=February 2014 |
| volume=562 | id=A84 | pages=21 | date=February 2014 |
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| doi=10.1051/0004-6361/201322762 | postscript=. |
| doi=10.1051/0004-6361/201322762 | postscript=. |
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| bibcode=2014A&A...562A..84R | arxiv=1401.2372 }}</ref> |
| bibcode=2014A&A...562A..84R | arxiv=1401.2372 | s2cid=54511685 }}</ref> |
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<ref name=zorec2012>{{citation |
<ref name=zorec2012>{{citation |
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| volume=537 | pages=A120 | year=2012 |
| volume=537 | pages=A120 | year=2012 |
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| bibcode=2012A&A...537A.120Z | arxiv=1201.2052 |
| bibcode=2012A&A...537A.120Z | arxiv=1201.2052 |
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| doi=10.1051/0004-6361/201117691 | postscript=. }}</ref> |
| doi=10.1051/0004-6361/201117691 | s2cid=55586789 | postscript=. }}</ref> |
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<ref name=Jaschek1978>{{citation |
<ref name=Jaschek1978>{{citation |
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| last1=Jaschek | first1=M. |
| last1=Jaschek | first1=M. |
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| title=Catalogue of selected spectral types in the MK system |
| title=Catalogue of selected spectral types in the MK system |
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| journal=Bulletin d'Information du Centre de |
| journal=Bulletin d'Information du Centre de Données Stellaires |
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| volume=15 | issue=121 |date=July 1978 |
| volume=15 | issue=121 |date=July 1978 |
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| page=121 |
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| bibcode=1978BICDS..15..121J | postscript=. |
| bibcode=1978BICDS..15..121J | postscript=. |
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}} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=III/42/catalog&Name=183534 Vizier catalog entry]</ref> |
}} [http://vizier.u-strasbg.fr/viz-bin/VizieR-4?-source=III/42/catalog&Name=183534 Vizier catalog entry]</ref> |
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| contribution=The Revision of the General Catalogue of Radial Velocities |
| contribution=The Revision of the General Catalogue of Radial Velocities |
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| title=Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30 |
| title=Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30 |
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| location=University of Toronto | postscript=. |
| volume=30 | page=57 | location=University of Toronto | postscript=. |
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| publisher=[[International Astronomical Union]] |
| publisher=[[International Astronomical Union]] |
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| bibcode=1967IAUS...30...57E }}</ref> |
| bibcode=1967IAUS...30...57E }}</ref> |
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| issue=5 | pages=331 | year=2012 |
| issue=5 | pages=331 | year=2012 |
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| bibcode=2012AstL...38..331A | arxiv=1108.4971 |
| bibcode=2012AstL...38..331A | arxiv=1108.4971 |
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| doi=10.1134/S1063773712050015 | postscript=. }}</ref> |
| doi=10.1134/S1063773712050015 | s2cid=119257644 | postscript=. }}</ref> |
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<ref name=Kaler2015>{{citation |
<ref name=Kaler2015>{{citation |
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| title=Kappa, Iota, and Iota-1 Cygni, a three-for-one-special | work=Stars |
| title=Kappa, Iota, and Iota-1 Cygni, a three-for-one-special | work=Stars |
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| url=http://stars.astro.illinois.edu/sow/kappacyg.html |
| url=http://stars.astro.illinois.edu/sow/kappacyg.html |
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| |
| access-date=2019-09-10 | postscript=. }}</ref> |
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}} |
}} |
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{{Stars of Cygnus}} |
{{Stars of Cygnus}} |
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<!-- Properties --> |
<!-- Properties --> |
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[[Category:A-type main-sequence stars]] |
[[Category:A-type main-sequence stars]] |
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[[Category:Spectroscopic binaries]] |
[[Category:Spectroscopic binaries]] |
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[[Category:Henry Draper Catalogue objects|183534]] |
[[Category:Henry Draper Catalogue objects|183534]] |
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[[Category:Hipparcos objects|095656]] |
[[Category:Hipparcos objects|095656]] |
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[[Category: |
[[Category:Bright Star Catalogue objects|7408]] |
Latest revision as of 16:03, 24 February 2023
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Cygnus |
Right ascension | 19h 27m 25.96022s[1] |
Declination | 52° 19′ 13.5871″[1] |
Apparent magnitude (V) | 5.73[2] |
Characteristics | |
Evolutionary stage | main sequence[3] |
Spectral type | A1V[4] |
B−V color index | −0.002±0.002[2] |
Astrometry | |
Radial velocity (Rv) | +1.90[5] km/s |
Proper motion (μ) | RA: -12.639[1] mas/yr Dec.: -27.567[1] mas/yr |
Parallax (π) | 8.4332 ± 0.0867 mas[1] |
Distance | 387 ± 4 ly (119 ± 1 pc) |
Absolute magnitude (MV) | +0.57[2] |
Details | |
Mass | 2.59±0.03[3] M☉ |
Luminosity | 74.1+11.0 −20.5[6] L☉ |
Surface gravity (log g) | 4.18[6] cgs |
Temperature | 9,683+89 −178[3] K |
Rotational velocity (v sin i) | 51.6±2.2[6] km/s |
Age | 404[7] Myr |
Other designations | |
Database references | |
SIMBAD | data |
Iota1 Cygni, Latinized from ι1 Cygni, is a probable binary star[6] system in the northern constellation Cygnus, and is separated by less than a degree from its brighter visual neighbor, Iota2 Cygni.[9] It is near the lower limit of visibility to the naked eye with an apparent visual magnitude of 5.75.[8] The system is located approximately 387 light years away based on parallax,[1] and it is drifting further away with a radial velocity of +2 km/s.[5]
This is a candidate double-lined spectroscopic binary system.[6] It has a stellar classification of A1V,[4] suggesting the primary component is an A-type main-sequence star. The star is about 400[7] million years old with a moderate rotation rate, showing a projected rotational velocity of 52 km/s.[6] It has 2.6[3] times the mass of the Sun and is radiating 74[6] times the Sun's luminosity from its photosphere at an effective temperature of 9,683 K.[3]
References
[edit]- ^ a b c d e f 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 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
- ^ a b c d e Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691, S2CID 55586789.
- ^ a b Jaschek, M. (July 1978), "Catalogue of selected spectral types in the MK system", Bulletin d'Information du Centre de Données Stellaires, 15 (121): 121, Bibcode:1978BICDS..15..121J. Vizier catalog entry
- ^ a b Evans, D. S. (June 20–24, 1966), "The Revision of the General Catalogue of Radial Velocities", in Batten, Alan Henry; Heard, John Frederick (eds.), Determination of Radial Velocities and their Applications, Proceedings from IAU Symposium no. 30, vol. 30, University of Toronto: International Astronomical Union, p. 57, Bibcode:1967IAUS...30...57E.
- ^ a b c d e f g Royer, F.; et al. (February 2014), "Normal A0-A1 stars with low rotational velocities. I. Abundance determination and classification", Astronomy & Astrophysics, 562: 21, arXiv:1401.2372, Bibcode:2014A&A...562A..84R, doi:10.1051/0004-6361/201322762, S2CID 54511685, A84.
- ^ a b Gontcharov, G. A. (November 2012), "Spatial distribution and kinematics of OB stars", Astronomy Letters, 38 (11): 694–706, arXiv:1606.09028, Bibcode:2012AstL...38..694G, doi:10.1134/S1063773712110035, S2CID 119108982.
- ^ a b "iot01 Cyg". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2016-04-10.
- ^ Kaler, James B. (September 11, 2015), "Kappa, Iota, and Iota-1 Cygni, a three-for-one-special", Stars, retrieved 2019-09-10.