1655 Comas Solà
{{Short description|Rare-type asteroid}}
{{Use dmy dates|date=October 2019}}
{{Infobox planet
| minorplanet = yes
| name = 1655 Comas Solà
| background = #D6D6D6
| image =
| image_size =
| caption =
| discovered = 28 November 1929
| discoverer = J. Comas Solà
| discovery_site = Fabra Obs.
| mpc_name = (1655) Comas Solá
| alt_names = 1929 WG{{·}}{{mp|1929 WC|1}}
1958 BG{{·}}A901 VG
| named_after = Josep Comas i Solà
{{small|(discoverer himself)}}
| mp_category = main-belt{{·}}{{small|(middle)}}
| epoch = 4 September 2017 (JD 2458000.5)
| uncertainty = 0
| observation_arc = 114.97 yr (41,994 days)
| aphelion = 3.4357 AU
| perihelion = 2.1248 AU
| semimajor = 2.7803 AU
| eccentricity = 0.2358
| period = 4.64 yr (1,693 days)
| mean_anomaly = 323.81°
| mean_motion = {{Deg2DMS|0.2126|sup=ms}} / day
| inclination = 9.6002°
| asc_node = 111.14°
| arg_peri = 323.52°
| dimensions = {{val|30.57|2.1}} km {{small|(IRAS:3)}}
{{val|32.80|0.69}} km
{{val|35.6|3.6}} km
{{val|35.943|0.183}}
{{val|39.942|0.390}} km
{{val|40|4}} km
| rotation = {{val|12|}} h {{small|(dated)}}
{{val|20.4|0.1}} h
{{val|20.456|0.004}} h
| albedo = {{val|0.04|0.01}}
{{val|0.0425|0.0069}}
{{val|0.045|0.010}}
{{val|0.05|0.01}}
{{val|0.065|0.003}}
{{nowrap|{{val|0.0726|0.011}} {{small|(IRAS:3)}}}}
| spectral_type = XFU {{small|(Tholen)}}
B {{small|(SMASS)}}{{·}}B
B–V = 0.642
U–B = 0.262
}}
1655 Comas Solà, provisional designation {{mp|1929 WG}}, is a rare-type asteroid from the central region of the asteroid belt, approximately 36 kilometers in diameter. It was discovered on 28 November 1929, by Spanish astronomer of Catalan origin, Josep Comas i Solà at the Fabra Observatory in Barcelona, Spain. It was later named after the discoverer.
Orbit and classification
It orbits the Sun in the central main-belt at a distance of 2.1–3.4 AU once every 4 years and 8 months (1,693 days). Its orbit has an eccentricity of 0.24 and an inclination of 10° with respect to the ecliptic. It was first observed as {{mp|A901 VG}} at Heidelberg Observatory in 1901, extending the body's observation arc by 28 years prior to its official discovery observation at Barcelona.
Physical characteristics
= Lightcurves =
A rotational lightcurve obtained by American amateur astronomer Robert Stephens gave a well-defined rotation period of 20.456 hours with a brightness variation of 0.20 magnitude ({{small|U=3}}).
= Diameter and albedo =
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Comas Solà measures between 30.57 and 40 kilometers in diameter and its surface has an albedo between 0.04 and 0.073. More recently published revised WISE/NEOWISE-data gave a refined diameter of 35.6 and 35.94 kilometers, respectively. The Collaborative Asteroid Lightcurve Link agrees with IRAS, and adopts an albedo of 0.0726 with a diameter of 30.57 kilometers and an absolute magnitude of 11.04.
Naming
This minor planet was named in memory of its discoverer Josep Comas i Solà (1868–1937), first director of the discovering Fabra Observatory, Barcelona, capital of the Catalonia region in northeastern Spain. He was a prolific observer of minor planets and comets in the 1920s.
It is one of the rare cases where a minor planet bears the name of its discoverer. Solà is also honored by the asteroid 1102 Pepita, named after his nickname, and by the 127-kilometer wide Martian crater Comas Sola. The official naming citation was published by the Minor Planet Center on 1 June 1980 ({{small|M.P.C. 5357}}).
References
{{reflist|30em|refs=
|type = 2016-10-26 last obs.
|title = JPL Small-Body Database Browser: 1655 Comas Sola (1929 WG)
|url = https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001655
|publisher = Jet Propulsion Laboratory
|accessdate = 6 June 2017}}
|title = Dictionary of Minor Planet Names – (1655) Comas Solá
|last = Schmadel | first = Lutz D.
|publisher = Springer Berlin Heidelberg
|pages = 131–132
|date = 2007
|isbn = 978-3-540-00238-3
|doi = 10.1007/978-3-540-29925-7_1656 |chapter = (1655) Comas Solá }}
|title = 1655 Comas Sola (1929 WG)
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/db_search/show_object?object_id=1655
|accessdate = 25 December 2016}}
|title = MPC/MPO/MPS Archive
|work = Minor Planet Center
|url = https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html
|accessdate = 25 December 2016}}
|title = Asteroids and comets rotation curves – (1655) Comas Solà
|last = Behrend |first = Raoul
|publisher = Geneva Observatory
|url = http://obswww.unige.ch/~behrend/page4cou.html#001655
|accessdate = 25 December 2016}}
|title = LCDB Data for (1655) Comas Solà
|publisher = Asteroid Lightcurve Database (LCDB)
|url = http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1655%7CComas%20Solà
|accessdate = 25 December 2016}}
|first1 = E. F. |last1 = Tedesco
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|first3 = M. |last3 = Noah
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|date = October 2004
|title = IRAS Minor Planet Survey V6.0
|url = https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab
|journal = NASA Planetary Data System
|volume = 12
|pages = IRAS-A-FPA-3-RDR-IMPS-V6.0
|bibcode = 2004PDSS...12.....T
|accessdate = 22 October 2019}}
|display-authors = 6
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|first4 = Sunao |last4 = Hasegawa
|first5 = Masateru |last5 = Ishiguro
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|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
|journal = Publications of the Astronomical Society of Japan
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|bibcode = 2011PASJ...63.1117U
|doi = 10.1093/pasj/63.5.1117
|doi-access= free
}} ([http://vizier.cfa.harvard.edu/viz-bin/VizieR-5?-source=J/PASJ/63/1117/acua_v1&Num=1655 online], [https://core.ac.uk/download/pdf/43545172.pdf AcuA catalog p. 153])
|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}}
|display-authors = 6
|first1 = V. |last1 = Alí-Lagoa
|first2 = J. |last2 = de León
|first3 = J. |last3 = Licandro
|first4 = M. |last4 = Delbó
|first5 = H. |last5 = Campins
|first6 = N. |last6 = Pinilla-Alonso
|first7 = M. S. |last7 = Kelley
|date = June 2013
|title = Physical properties of B-type asteroids from WISE data
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013A&A...554A..71A
|journal = Astronomy and Astrophysics
|volume = 554
|page = 16
|bibcode = 2013A&A...554A..71A
|doi = 10.1051/0004-6361/201220680
|arxiv = 1303.5487
|access-date= 25 December 2016}}
|display-authors = 6
|first1 = V. |last1 = Alí-Lagoa
|first2 = J. |last2 = Licandro
|first3 = R. |last3 = Gil-Hutton
|first4 = M. |last4 = Cañada-Assandri
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|first6 = J. |last6 = de León
|first7 = H. |last7 = Campins
|first8 = N. |last8 = Pinilla-Alonso
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|first10 = J. |last10 = Hanus
|date = June 2016
|title = Differences between the Pallas collisional family and similarly sized B-type asteroids
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|access-date= 25 December 2016|doi-access= free
|hdl= 11336/63614
|hdl-access= free
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|display-authors = 6
|first1 = Don |last1 = Addleman
|first2 = Brent |last2 = Covele
|first3 = Allison |last3 = Duncan
|first4 = Jama |last4 = Johnson
|first5 = Steve |last5 = Kramb
|first6 = Crystal |last6 = Lecrone
|first7 = Chris |last7 = Reichert
|first8 = Harry |last8 = Starnes
|first9 = Andrew |last9 = Twarek
|first10 = Elaine |last10 = Kirkpatrick
|first11 = Richard |last11 = Ditteon
|date = December 2005
|title = Rose-Hulman spring 2005 lightcurve results: 155 Scylla, 590 Tomyris, 1655 Comas Solá, 2058 Roka, 6379 Vrba, and (25934) 2001 DC74.
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2005MPBu...32...76A
|journal = The Minor Planet Bulletin
|volume = 32
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|issn = 1052-8091
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|access-date= 25 December 2016}}
|author = Stephens, Robert D.
|date = July 2009
|title = Asteroids Observed from GMARS and Santana Observatories: 2009 January - February
|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009MPBu...36..125S
|journal = The Minor Planet Bulletin
|volume = 36
|issue = 3
|pages = 125–126
|issn = 1052-8091
|bibcode = 2009MPBu...36..125S
|access-date= 25 December 2016}}
|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
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|first7 = S. |last7 = Sonnett
|date = August 2014
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|url = http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M
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|bibcode = 2014ApJ...791..121M
|doi = 10.1088/0004-637X/791/2/121
|arxiv = 1406.6645
|access-date= 25 December 2016}}
}}
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/NumberedMPs000001.html Discovery Circumstances: Numbered Minor Planets (1)-(5000)] – Minor Planet Center
- {{AstDys|1655}}
- {{JPL small body}}
{{Minor planets navigator |1654 Bojeva |number=1655 |1656 Suomi}}
{{Small Solar System bodies}}
{{Authority control}}
{{DEFAULTSORT:Comas Sola}}