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{{Short description|Main-belt asteroid}}
'''Asteroid 17473 Freddiemercury'''<ref name="BBC_5Sep16" />, also known as '''(17473) 1991 FM<sub>3</sub>''', is a [[main-belt asteroid]] that was discovered by [[Henri Debehogne]] at the [[La Silla Observatory]] in Chile on March 21, 1991.<ref name="JPL" /> On 5 September 2016 the [[International Astronomical Union]] and the [[Minor Planet Centre]] named it "Freddiemercury" after [[Freddie Mercury]], as the asteroid was discovered in the year that the singer died. The naming was announced by [[Brian May]] at [[Montreux Casino]] to mark the singer's 70th birthday.<ref name="BBC_5Sep16" /> It is approximately {{convert|2|km|mi}} across, and orbits between [[Mars]] and [[Jupiter]].<ref name="Telegraph_5Sep16" />
{{Use dmy dates|date=October 2019}}
{{Infobox planet
| minorplanet = yes
| name = 17473 Freddiemercury
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovery_ref = <ref name="jpldata" />
| discovered = 21 March 1991
| discoverer = [[Henri Debehogne|H. Debehogne]]
| discovery_site = [[La Silla Observatory|La Silla Obs.]]
| mpc_name = (17473) Freddiemercury
| alt_names = {{mp|1991 FM|3}}{{·}}{{mp|1982 VC|9}}<br />{{mp|1999 JE|127}}
| pronounced =
| named_after = [[Freddie Mercury]]<br />{{small|(British musician)}}<ref name="MPC-Freddiemercury" />
| mp_category = [[main-belt]]{{·}}{{small|([[Kirkwood gap|inner]])}}<br />[[Massalia family|Massalia]]<ref name="Ferret" />
| orbit_ref = <ref name="jpldata" />
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5)
| uncertainty = 0
| observation_arc = 34.48 yr (12,593 days)
| aphelion = 2.7627 [[Astronomical unit|AU]]
| perihelion = 2.0180 AU
| semimajor = 2.3903 AU
| eccentricity = 0.1558
| period = 3.70 [[Julian year (astronomy)|yr]] (1,350 days)
| mean_anomaly = 112.26[[Degree (angle)|°]]
| mean_motion = {{Deg2DMS|0.2667|sup=ms}} / day
| inclination = 0.9109°
| asc_node = 0.8510°
| arg_peri = 100.59°
| dimensions = {{val|3.435|0.374}} km<ref name="jpldata" /><ref name="Masiero-2012" />
| rotation =
| albedo = {{val|0.313|0.064}}<ref name="jpldata" /><ref name="Masiero-2012" />
| spectral_type =
| abs_magnitude = 14.4<ref name="jpldata" />
}}


'''17473 Freddiemercury''' ([[Minor planet provisional designation|provisional designation]] '''{{mp|1991 FM|3}}''') is a stony Massalian [[asteroid]] from the inner regions [[asteroid belt]], approximately 3.4 kilometers in diameter. The asteroid was discovered on 21 March 1991, by Belgian astronomer [[Henri Debehogne]] at [[European Southern Observatory|ESO]]'s [[La Silla Observatory]] in northern Chile, and later named in memory of [[Freddie Mercury]].<ref name="MPC-Freddiemercury" />
==See also==
*[[List of minor planets: 17001–18000]]


== Classification and orbit ==
== Reflist ==
Freddiemercury is a member of the [[Massalia family]] ({{small|[[FIN tbl#404|404]]}}),<ref name="Ferret" /> a large [[asteroid family|family]] of stony [[S-type asteroid]]s with low inclinations in the [[Kirkwood gap|inner]] main belt. It orbits the Sun at a distance of 2.0–2.8&nbsp;[[Astronomical unit|AU]] once every 3 years and 8 months (1,350 days). Its orbit has an [[orbital eccentricity|eccentricity]] of 0.16 and an [[orbital inclination|inclination]] of 1[[Degree (angle)|°]] with respect to the [[ecliptic]].<ref name="jpldata" />
{{Reflist|refs=

<ref name="JPL">{{cite web | url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=17473 | title=JPL Small-Body Database Browser | accessdate=5 September 2016}}</ref>
The body's [[observation arc]] begins 9 years prior to its official discovery observation, with its identification as {{mp|1982 VC|9}} at [[Crimea–Nauchnij]] in November 1982.<ref name="MPC-Freddiemercury" />
<ref name="BBC_5Sep16">{{cite news | url=http://www.bbc.co.uk/news/entertainment-arts-37275294 | title=Freddie Mercury: Asteroid named after late Queen star to mark 70th birthday | publisher=BBC News | date=6 September 2016}}</ref>

<ref name="Telegraph_5Sep16">{{cite news | url=http://www.telegraph.co.uk/science/2016/09/04/a-shooting-star-leaping-through-the-sky-asteroid-named-after-fre/ | title=A shooting star leaping through the sky: asteroid named after Freddie Mercury on '70th birthday' | publisher=Telegraph | date=5 September 2016}}</ref>
== Physical characteristics ==
}}
According to the survey carried out by the [[NEOWISE]] mission of NASA's [[Wide-field Infrared Survey Explorer]], Freddiemercury measures 3.4 kilometers in diameter and its surface has a high [[astronomical albedo|albedo]] of 0.313.<ref name="Masiero-2012" />

As of 2017, the asteroid's exact composition, as well as its [[rotation period]] and shape remain unknown.<ref name="jpldata" /><ref name="lcdb" />

== Naming ==
On 4 September 2016, one day before what would have been [[Freddie Mercury]]'s 70th birthday, the [[International Astronomical Union]] and the [[Minor Planet Center]] named the asteroid after Mercury, as it was discovered the same year as Mercury's death, ({{small|[[Minor Planet Circulars|M.P.C.]] 101215}})<ref name="MPC-Circulars-Archive" /> and its provisional designation included his initials, FM. The approved naming was announced by Mercury's [[Queen (band)|Queen]] bandmate [[Brian May]] at [[Montreux Casino]] to mark Mercury's 70th birthday.<ref name="BBC-Freddie-Mercury-Asteroid" /><ref name="Telegraph-shooting-star" />

== References ==
{{reflist|refs=

<ref name="jpldata">{{cite web
|type = 2017-05-02 last obs.
|title = JPL Small-Body Database Browser: 17473 (1991 FM3)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2017473
|publisher = [[Jet Propulsion Laboratory]]
|accessdate = 26 June 2017}}</ref>

<ref name="MPC-Freddiemercury">{{cite web
|title = 17473 (1991 FM3)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=17473
|accessdate = 6 September 2016}}</ref>

<ref name="MPC-Circulars-Archive">{{cite web
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|accessdate = 6 September 2016}}</ref>

<ref name="Masiero-2012">{{cite journal
|display-authors = 5
|author = Masiero, Joseph R.
|author2 = Mainzer, A. K.
|author3 = Grav, T.
|author4 = Bauer, J. M.
|author5 = Cutri, R. M.
|author6 = Nugent, C.
|author7 = Cabrera, M. S.
|date = November 2012
|title = Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M
|journal = The Astrophysical Journal Letters
|volume = 759
|issue = 1
|page = 5
|bibcode = 2012ApJ...759L...8M
|doi = 10.1088/2041-8205/759/1/L8
|arxiv = 1209.5794
|s2cid = 46350317
|access-date= 6 September 2016}}</ref>

<ref name="BBC-Freddie-Mercury-Asteroid">{{cite news
|title = Freddie Mercury: Asteroid named after late Queen star to mark 70th birthday
|date = 6 September 2016
|publisher = [[BBC News]]
|url = https://www.bbc.com/news/entertainment-arts-37275294
|accessdate = 26 June 2017}}</ref>

<ref name="Telegraph-shooting-star">{{cite news
|title = A shooting star leaping through the sky: asteroid named after Freddie Mercury on '70th birthday'
|publisher = Telegraph
|date = 5 September 2016
|url = https://www.telegraph.co.uk/science/2016/09/04/a-shooting-star-leaping-through-the-sky-asteroid-named-after-fre/
|accessdate = 26 June 2017}}</ref>

<ref name="Ferret">{{cite web
|title = Asteroid 17473 Freddiemercury – Nesvorny HCM Asteroid Families V3.0
|work = Small Bodies Data Ferret
|url = https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=17473+Freddiemercury#Asteroid%2017473%20FreddiemercuryEAR-A-VARGBDET-5-NESVORNYFAM-V3.0
|accessdate = 27 October 2019}}</ref>

<ref name="lcdb">{{cite web
|title = LCDB Data for (17473) Freddiemercury
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=17473%7CFreddiemercury
|accessdate = 26 June 2017}}</ref>

}} <!-- end of reflist -->

== External links ==
* [http://www.minorplanet.info/PHP/lcdbsummaryquery.php Asteroid Lightcurve Database (LCDB)], query form ([http://www.minorplanet.info/lightcurvedatabase.html info] {{Webarchive|url=https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html |date=16 December 2017 }})
* [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
* [http://obswww.unige.ch/~behrend/page_cou.html Asteroids and comets rotation curves, CdR] – Observatoire de Genève, Raoul Behrend
* [https://www.minorplanetcenter.net/iau/lists/NumberedMPs015001.html Discovery Circumstances: Numbered Minor Planets (15001)-(20000)] – Minor Planet Center
* [http://www.virtualtelescope.eu/2016/12/30/asteroid-17473-freddiemercury-image-30-dec-2016/ Asteroid (17473) Freddiemercury: an image ] – Virtual Telescope Project
* {{AstDys|17473}}
* {{JPL small body}}

{{Minor planets navigator |17472 Dinah |number=17473 | }}
{{Small Solar System bodies}}
{{Freddie Mercury}}
{{Authority control}}


{{DEFAULTSORT:Freddiemercury}}
{{DEFAULTSORT:Freddiemercury}}
[[Category:Main-belt asteroids|017473]]
[[Category:Massalia asteroids|017473]]
[[Category:Discoveries by Henri Debehogne]]
[[Category:Discoveries by Henri Debehogne]]
[[Category:Minor planets named for people]]
[[Category:Named minor planets]]
[[Category:Named minor planets]]
[[Category:Astronomical objects discovered in 1991|19910321]]
[[Category:Freddie Mercury]]
[[Category:Freddie Mercury]]
[[Category:Astronomical objects discovered in 1991|19910321]]

Latest revision as of 23:16, 18 January 2024

17473 Freddiemercury
Discovery[1]
Discovered byH. Debehogne
Discovery siteLa Silla Obs.
Discovery date21 March 1991
Designations
(17473) Freddiemercury
Named after
Freddie Mercury
(British musician)[2]
1991 FM3 · 1982 VC9
1999 JE127
main-belt · (inner)
Massalia[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc34.48 yr (12,593 days)
Aphelion2.7627 AU
Perihelion2.0180 AU
2.3903 AU
Eccentricity0.1558
3.70 yr (1,350 days)
112.26°
0° 16m 0.12s / day
Inclination0.9109°
0.8510°
100.59°
Physical characteristics
Dimensions3.435±0.374 km[1][4]
0.313±0.064[1][4]
14.4[1]

17473 Freddiemercury (provisional designation 1991 FM3) is a stony Massalian asteroid from the inner regions asteroid belt, approximately 3.4 kilometers in diameter. The asteroid was discovered on 21 March 1991, by Belgian astronomer Henri Debehogne at ESO's La Silla Observatory in northern Chile, and later named in memory of Freddie Mercury.[2]

Classification and orbit

[edit]

Freddiemercury is a member of the Massalia family (404),[3] a large family of stony S-type asteroids with low inclinations in the inner main belt. It orbits the Sun at a distance of 2.0–2.8 AU once every 3 years and 8 months (1,350 days). Its orbit has an eccentricity of 0.16 and an inclination of 1° with respect to the ecliptic.[1]

The body's observation arc begins 9 years prior to its official discovery observation, with its identification as 1982 VC9 at Crimea–Nauchnij in November 1982.[2]

Physical characteristics

[edit]

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Freddiemercury measures 3.4 kilometers in diameter and its surface has a high albedo of 0.313.[4]

As of 2017, the asteroid's exact composition, as well as its rotation period and shape remain unknown.[1][5]

Naming

[edit]

On 4 September 2016, one day before what would have been Freddie Mercury's 70th birthday, the International Astronomical Union and the Minor Planet Center named the asteroid after Mercury, as it was discovered the same year as Mercury's death, (M.P.C. 101215)[6] and its provisional designation included his initials, FM. The approved naming was announced by Mercury's Queen bandmate Brian May at Montreux Casino to mark Mercury's 70th birthday.[7][8]

References

[edit]
  1. ^ a b c d e f g "JPL Small-Body Database Browser: 17473 (1991 FM3)" (2017-05-02 last obs.). Jet Propulsion Laboratory. Retrieved 26 June 2017.
  2. ^ a b c "17473 (1991 FM3)". Minor Planet Center. Retrieved 6 September 2016.
  3. ^ a b "Asteroid 17473 Freddiemercury – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
  4. ^ a b c Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters. 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. S2CID 46350317. Retrieved 6 September 2016.
  5. ^ "LCDB Data for (17473) Freddiemercury". Asteroid Lightcurve Database (LCDB). Retrieved 26 June 2017.
  6. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 6 September 2016.
  7. ^ "Freddie Mercury: Asteroid named after late Queen star to mark 70th birthday". BBC News. 6 September 2016. Retrieved 26 June 2017.
  8. ^ "A shooting star leaping through the sky: asteroid named after Freddie Mercury on '70th birthday'". Telegraph. 5 September 2016. Retrieved 26 June 2017.
[edit]
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