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| background = #D6D6D6
| background = #D6D6D6
| image =
| image =
| image_size =
| caption =
| caption =
| discovery_ref = &thinsp;<ref name="jpldata" />
| discovery_ref = &thinsp;<ref name="jpldata" />
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| discoverer = [[Henri Debehogne|H. Debehogne]]
| discoverer = [[Henri Debehogne|H. Debehogne]]
| discovery_site = [[La Silla Observatory|La Silla Obs.]]
| discovery_site = [[La Silla Observatory|La Silla Obs.]]
| mpc_name = (17473) Freddiemercury
| mpc_name = (17473) Freddiemercury
| alt_names = {{mp|1991 FM|3}}{{·}}{{mp|1982 VC|9}}<br />{{mp|1999 JE|127}}
| alt_names = {{mp|1991 FM|3}}{{·}}{{mp|1982 VC|9}}<br />{{mp|1999 JE|127}}
| pronounced =
| pronounced =
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| mp_category = [[main-belt]]{{·}}{{small|([[Kirkwood gap|inner]])}}
| mp_category = [[main-belt]]{{·}}{{small|([[Kirkwood gap|inner]])}}
| orbit_ref = &thinsp;<ref name="jpldata" />
| orbit_ref = &thinsp;<ref name="jpldata" />
| epoch = 16 February 2017 ([[Julian day|JD]] 2457800.5)
| epoch = 4 September 2017 ([[Julian day|JD]] 2458000.5)
| uncertainty = 0
| uncertainty = 0
| observation_arc = {{nowrap|33.99 yr (12,415 days)}}
| observation_arc = 34.48 yr (12,593 days)
| aphelion = 2.7618 [[Astronomical unit|AU]]
| aphelion = 2.7627 [[Astronomical unit|AU]]
| perihelion = 2.0189 AU
| perihelion = 2.0180 AU
| semimajor = 2.3903 AU
| semimajor = 2.3903 AU
| eccentricity = 0.1554
| eccentricity = 0.1558
| period = 3.70 [[Julian year (astronomy)|yr]] (1,350 days)
| period = 3.70 [[Julian year (astronomy)|yr]] (1,350 days)
| mean_anomaly = 58.955[[Degree (angle)|°]]
| mean_anomaly = 112.26[[Degree (angle)|°]]
| mean_motion = {{Deg2DMS|0.2667|sup=ms}} / day
| mean_motion = {{Deg2DMS|0.2667|sup=ms}} / day
| inclination = 0.9120°
| inclination = 0.9109°
| asc_node = 0.8844°
| asc_node = 0.8510°
| arg_peri = 100.56°
| arg_peri = 100.59°
| dimensions = {{val|3.435|0.374}} km<ref name="jpldata" /><ref name="Masiero-2012" />
| dimensions = {{val|3.435|0.374}} km<ref name="jpldata" /><ref name="Masiero-2012" />
| rotation =
| rotation =
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}}
}}


'''17473 Freddiemercury''', provisional designation {{mpf|1991 FM|3}}, is a bright [[asteroid]] from the inner regions [[asteroid belt]], approximately 3.4 kilometers in diameter. It was discovered on 21 March 1991, by Belgian astronomer [[Henri Debehogne]] at [[European Southern Observatory|ESO]]'s [[La Silla Observatory]] in northern Chile.<ref name="MPC-Freddiemercury" />
'''17473 Freddiemercury''', provisional designation {{mpf|1991 FM|3}}, is a bright [[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" />


== Classification and orbit ==
The asteroid 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" /> The first observation was made at [[Crimea–Nauchnij]] in 1982, extending the asteroid's [[observation arc]] by 9 years prior to its discovery.<ref name="MPC-Freddiemercury" /> According to the survey carried out by the [[NEOWISE]] mission of NASA's [[Wide-field Infrared Survey Explorer]], the asteroid measures 3.4 kilometers in diameter and its surface has a high [[astronomical albedo|albedo]] of 0.313.<ref name="Masiero-2012" /> As of 2016, the asteroid's composition, as well as its [[rotation period]] and shape remain unknown.<ref name="jpldata" />


''Freddiemercury'' orbits the Sun in the [[Kirkwood gap|inner]] main-belt 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" />
On 4 September 2016, the day what would've been the day before [[Freddie Mercury]]'s 70th birthday, the [[International Astronomical Union]] and the [[Minor Planet Centre]] named it "Freddiemercury" after Freddie Mercury (1946–1991), as the asteroid was discovered in the year that the singer died ({{small|[[Minor Planet Circulars|M.P.C.]] 101215}})<ref name="MPC-Circulars-Archive" /> and its provisional designation included his initials. The naming was announced by [[Brian May]] at [[Montreux Casino]] to mark the singer's 70th birthday.<ref name="BBC_5Sep16" /><ref name="Telegraph_5Sep16" />

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" />

== 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 composition, as well as its [[rotation period]] and shape remain unknown.<ref name="jpldata" /><ref name="lcdb" />

== Naming ==

On 4 September 2016, the day what would've been the day before [[Freddie Mercury]]'s 70th birthday, the [[International Astronomical Union]] and the [[Minor Planet Center]] named it "Freddiemercury" after Freddie Mercury (1946–1991), as the asteroid was discovered in the year that the singer died ({{small|[[Minor Planet Circulars|M.P.C.]] 101215}})<ref name="MPC-Circulars-Archive" /> and its provisional designation included his initials. The approved naming was announced by [[Brian May]] at [[Montreux Casino]] to mark the singer's 70th birthday.<ref name="BBC-Freddie-Mercury-Asteroid" /><ref name="Telegraph-shooting-star" />


== References ==
== References ==
{{reflist
{{reflist|refs=
|refs=


<ref name="jpldata">{{cite web
<ref name="jpldata">{{cite web
|type = 2016-11-05 last obs.
|type = 2017-05-02 last obs.
|title = JPL Small-Body Database Browser: 17473 (1991 FM3)
|title = JPL Small-Body Database Browser: 17473 (1991 FM3)
|url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2017473
|url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2017473
|publisher = Jet Propulsion Laboratory
|publisher = Jet Propulsion Laboratory
|accessdate = 3 December 2016}}</ref>
|accessdate = 26 June 2017}}</ref>


<ref name="MPC-Freddiemercury">{{cite web
<ref name="MPC-Freddiemercury">{{cite web
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|access-date= 6 September 2016}}</ref>
|access-date= 6 September 2016}}</ref>


<ref name="BBC-Freddie-Mercury-Asteroid">{{cite news
<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>
|title = Freddie Mercury: Asteroid named after late Queen star to mark 70th birthday
|date = 6 September 2016
|publisher = BBC News
|url = http://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 = http://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="lcdb">{{cite web
<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>
|title = LCDB Data for (17473) Freddiemercury
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=17473%7CFreddiemercury
|accessdate = 26 June 2017}}</ref>


}} <!-- end of reflist -->
}} <!-- end of reflist -->
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* {{JPL small body}}
* {{JPL small body}}


{{Minor planets navigator|17472 Dinah |number=17473|(17474) 1991 GK5}}
{{Minor planets navigator |17472 Dinah |number=17473 | }}
{{Small Solar System bodies}}
{{Small Solar System bodies}}



Revision as of 14:19, 26 June 2017

17473 Freddiemercury
Discovery [1]
Discovered byH. Debehogne
Discovery siteLa Silla Obs.
Discovery date21 March 1991
Designations
(17473) Freddiemercury
Named after
Freddie Mercury
(musician)[2]
1991 FM3 · 1982 VC9
1999 JE127
main-belt · (inner)
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][3]
0.313±0.064[1][3]
14.4[1]

17473 Freddiemercury, provisional designation 1991 FM3, is a bright 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

Freddiemercury orbits the Sun in the inner main-belt 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

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.[3]

As of 2017, the asteroid's composition, as well as its rotation period and shape remain unknown.[1][4]

Naming

On 4 September 2016, the day what would've been the day before Freddie Mercury's 70th birthday, the International Astronomical Union and the Minor Planet Center named it "Freddiemercury" after Freddie Mercury (1946–1991), as the asteroid was discovered in the year that the singer died (M.P.C. 101215)[5] and its provisional designation included his initials. The approved naming was announced by Brian May at Montreux Casino to mark the singer's 70th birthday.[6][7]

References

  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 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. Retrieved 6 September 2016.
  4. ^ "LCDB Data for (17473) Freddiemercury". Asteroid Lightcurve Database (LCDB). Retrieved 26 June 2017.
  5. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 6 September 2016.
  6. ^ "Freddie Mercury: Asteroid named after late Queen star to mark 70th birthday". BBC News. 6 September 2016. Retrieved 26 June 2017.
  7. ^ "A shooting star leaping through the sky: asteroid named after Freddie Mercury on '70th birthday'". Telegraph. 5 September 2016. Retrieved 26 June 2017.