| 释义 |
- Orbit and classification
- Physical characteristics Diameter and albedo Lightcurves
- Naming
- References
- External links
{{Infobox planet
| minorplanet = yes
| name = 1887 Virton
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovery_ref =
| discovered = 5 October 1950
| discoverer = S. Arend
| discovery_site = Uccle Obs.
| mpc_name = (1887) Virton
| alt_names = 1950 TD{{·}}1934 RG
1944 OE{{·}}1950 RG
{{mp|1950 TQ|1}}{{·}}{{mp|1952 BF|1}}
1960 QC{{·}}1970 OA
| named_after = Virton {{small|(Belgian town)}}[2]
| mp_category = main-belt{{·}}Eos [3]
| orbit_ref =
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 66.44 yr (24,266 days)
| aphelion = 3.3481 AU
| perihelion = 2.6606 AU
| semimajor = 3.0043 AU
| eccentricity = 0.1144
| period = 5.21 yr (1,902 days)
| mean_anomaly = 295.94°
| mean_motion = {{Deg2DMS|0.1893|sup=ms}} / day
| inclination = 9.6221°
| asc_node = 348.58°
| arg_peri = 32.733°
| dimensions = {{val|20.848|0.260}}[5]
21.40 km {{small|(calculated)}}[3]
{{val|22.174|0.605}} km[7]
{{val|23.43|0.54}} km[8]
| rotation =
| albedo = {{val|0.105|0.005}}[8]
{{val|0.1085|0.0158}}[7]
{{val|0.124|0.015}}[5]
0.14 {{small|(assumed)}}[3]
| spectral_type = S [3]
| abs_magnitude = 11.1
}}1887 Virton, provisional designation {{mp|1950 TD}}, is a stony Eoan asteroid from the outer region of the asteroid belt, approximately 21 kilometers in diameter. It was discovered by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle on 5 October 1950, and named after the Belgian town of Virton.[2][19] Orbit and classification Virton is a member of the Eos family. It orbits the Sun in the outer main-belt at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,902 days). Its orbit has an eccentricity of 0.11 and an inclination of 10° with respect to the ecliptic.The body's observation arc begins with its official discovery observation at Uccle, as previous observations at Johannesburg, Crimea-Simeis and Turku Observatory remained unused.[19] Physical characteristics The asteroid has been characterized as a common stony S-type asteroid.[3] Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Virton measures between 20.8 and 23.43 kilometers in diameter and its surface has an albedo between 0.105 and 0.124, respectively.[5][7][8] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.14 and calculates a diameter of 21.4 kilometers with an absolute magnitude of 11.1.[3] Lightcurves As of 2017, Virton{{'}}s rotation period and shape remain unknown. Naming This minor planet was named after the town and capital district, Virton, in the southernmost part Belgium. It is located very close to Robelmont, Arend's birthplace (also see 1145 Robelmonte).[2] The official naming citation was published by the Minor Planet Center on 22 September 1983 ({{small|M.P.C. 8151}}).[30] References 1. ^1 2 3 {{cite book |title = Dictionary of Minor Planet Names – (1887) Virton |last = Schmadel | first = Lutz D. |publisher = Springer Berlin Heidelberg |page = 151 |date = 2007 |isbn = 978-3-540-00238-3 |doi = 10.1007/978-3-540-29925-7_1888 |chapter = (1887) Virton }}
2. ^1 2 {{cite web |title = 1887 Virton (1950 TD) |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1887 |accessdate = 11 December 2016}}
3. ^1 {{cite web |title = MPC/MPO/MPS Archive |work = Minor Planet Center |url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html |accessdate = 11 December 2016}}
4. ^1 2 3 {{cite journal |display-authors = 6 |first1 = Joseph R. |last1 = Masiero |first2 = T. |last2 = Grav |first3 = A. K. |last3 = Mainzer |first4 = C. R. |last4 = Nugent |first5 = J. M. |last5 = Bauer |first6 = R. |last6 = Stevenson |first7 = S. |last7 = Sonnett |date = August 2014 |title = Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos |journal = The Astrophysical Journal |volume = 791 |issue = 2 |page = 11 |bibcode = 2014ApJ...791..121M |doi = 10.1088/0004-637X/791/2/121 |arxiv = 1406.6645 }}
5. ^1 2 3 4 5 6 7 8 {{cite web |title = LCDB Data for (1887) Virton |publisher = Asteroid Lightcurve Database (LCDB) |url = http://www.minorplanet.info/PHP/GenerateALCDEFPage_Local.php?AstInfo=1887%7CVirton |accessdate = 11 December 2016}}
6. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = A. |last1 = Mainzer |first2 = T. |last2 = Grav |first3 = J. |last3 = Masiero |first4 = E. |last4 = Hand |first5 = J. |last5 = Bauer |first6 = D. |last6 = Tholen |first7 = R. S. |last7 = McMillan |first8 = T. |last8 = Spahr |first9 = R. M. |last9 = Cutri |first10 = E. |last10 = Wright |first11 = J. |last11 = Watkins |first12 = W. |last12 = Mo |first13 = C. |last13 = Maleszewski |date = November 2011 |title = NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results |journal = The Astrophysical Journal |volume = 741 |issue = 2 |page = 25 |bibcode = 2011ApJ...741...90M |doi = 10.1088/0004-637X/741/2/90 |arxiv = 1109.6407 }}
7. ^1 2 3 4 {{cite journal |display-authors = 6 |first1 = Fumihiko |last1 = Usui |first2 = Daisuke |last2 = Kuroda |first3 = Thomas G. |last3 = Müller |first4 = Sunao |last4 = Hasegawa |first5 = Masateru |last5 = Ishiguro |first6 = Takafumi |last6 = Ootsubo |first7 = Daisuke |last7 = Ishihara |first8 = Hirokazu |last8 = Kataza |first9 = Satoshi |last9 = Takita |first10 = Shinki |last10 = Oyabu |first11 = Munetaka |last11 = Ueno |first12 = Hideo |last12 = Matsuhara |first13 = Takashi |last13 = Onaka |date = October 2011 |title = Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey |url = http://pasj.oxfordjournals.org/content/63/5/1117.full.pdf+html |journal = Publications of the Astronomical Society of Japan |volume = 63 |issue = 5 |pages = 1117–1138 |bibcode = 2011PASJ...63.1117U |doi = 10.1093/pasj/63.5.1117 |accessdate = 9 June 2017}} Online catalog
[1][2][3][4][5][6][7]}} External links - Asteroid Lightcurve Database (LCDB), query form (info)
- [https://books.google.com/books?id=aeAg1X7afOoC&pg Dictionary of Minor Planet Names], Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- {{JPL small body}}
{{Minor planets navigator|1886 Lowell|number=1887|1888 Zu Chong-Zhi}}{{Small Solar System bodies}}{{DEFAULTSORT:Virton}} 5 : Eos asteroids|Discoveries by Sylvain Arend|Minor planets named for places|Named minor planets|Astronomical objects discovered in 1950 |