1655 Comas Solà

1655 Comas Sola
Discovery [1]
Discovered by J. Comas Solà
Discovery site Fabra Observatory
Discovery date 28 November 1929
Designations
MPC designation 1655 Comas Sola
Named after
 Josep Comas i Solà
(discoverer himself)[2]
1929 WG · 1929 WC1
1958 BG · A901 VG
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 113.82 yr (41572 days)
Aphelion 3.4351 AU (513.88 Gm)
Perihelion 2.1231 AU (317.61 Gm)
2.7791 AU (415.75 Gm)
Eccentricity 0.23604
4.63 yr (1692.2 d)
196.13°
0° 12m 45.864s / day
Inclination 9.6024°
111.14°
323.60°
Earth MOID 1.14632 AU (171.487 Gm)
Jupiter MOID 1.87158 AU (279.984 Gm)
Jupiter Tisserand parameter 3.273
Physical characteristics
Dimensions 30.57 km[4]
32.80±0.69 km[5]
39.942±0.390 km[6]
40±4 km[7]
Mean radius
 15.285 ± 1.05 km
20.456 h (0.8523 d)[1][8]
20.4±0.1 h[9]
12 h[10]
0.0726[4]
0.065±0.003[5]
0.0425±0.0069[6]
0.04±0.01[7]
0.0726 ± 0.011[1]
B–V = 0.642
U–B = 0.262
XFU (Tholen), B (SMASS)
B [3]
11.04

    1655 Comas Sola, provisional designation 1929 WG, is an asteroid from the outer region of the asteroid belt, about 30 to 40 kilometers in diameter. It was discovered by Spanish astronomer of Catalan origin, Josep Comas i Solà at the Fabra Observatory in Barcelona on 28 November 1929.[11]

    The asteroid shows as rare XFU-type and B-type spectrum in the Tholen and SMASS classification scheme, respectively.[1] It orbits the Sun at a distance of 2.1–3.4 AU once every 4 years and 8 months (1,692 days). It has a long rotation period of 20 hours[8][9][10] and a geometric albedo of 0.07, according to the surveys carried out by IRAS, Akari, WISE and NEOWISE.[4][5][6][7]

    The asteroid 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.[2]

    References

    1. 1 2 3 4 5 "JPL Small-Body Database Browser: 1655 Comas Sola (1929 WG)" (2015-08-31 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1655) Comas Solà. Springer Berlin Heidelberg. pp. 131–132. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 "LCDB Data for (1655) Comas Sola". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved November 2015.
    5. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved November 2015.
    6. 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
    7. 1 2 3 Alí-Lagoa, V.; de León, J.; Licandro, J.; Delbó, M.; Campins, H.; et al. (June 2013). "Physical properties of B-type asteroids from WISE data". Astronomy & Astrophysics 554: 16. arXiv:1303.5487. Bibcode:2013A&A...554A..71A. doi:10.1051/0004-6361/201220680. Retrieved November 2015.
    8. 1 2 Stephens, Robert D. (July 2009). "Asteroids Observed from GMARS and Santana Observatories: 2009 January - February". The Minor Planet Bulletin 36 (3): 125–126. Bibcode:2009MPBu...36..125S. ISSN 1052-8091. Retrieved November 2015.
    9. 1 2 Addleman, Don; Covele, Brent; Duncan, Allison; Johnson, Jama; Kramb, Steve; et al. (December 2005). "Rose-Hulman spring 2005 lightcurve results: 155 Scylla, 590 Tomyris, 1655 Comas Solá, 2058 Roka, 6379 Vrba, and (25934) 2001 DC74.". The Minor Planet Bulletin 32 (4): 76–78. Bibcode:2005MPBu...32...76A. ISSN 1052-8091. Retrieved November 2015.
    10. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1655) Comas Sola". Geneva Observatory. Retrieved November 2015.
    11. ↑ "1655 Comas Sola (1929 WG)". Minor Planet Center. Retrieved November 2015.

    External links


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