1655 Comas Solà
| Discovery | |
|---|---|
| Discovered by | J. Comas Solà |
| Discovery site | Fabra Obs. |
| Discovery date | 28 November 1929 |
| Designations | |
| MPC designation | 1655 Comas Solà |
|
Named after
|
Josep Comas i Solà (discoverer himself) |
| 1929 WG · 1929 WC1 1958 BG · A901 VG |
|
| main-belt · (middle) | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 114.77 yr (41,919 days) |
| Aphelion | 3.4354 AU |
| Perihelion | 2.1244 AU |
| 2.7799 AU | |
| Eccentricity | 0.2358 |
| 4.64 yr (1,693 days) | |
| 281.26° | |
| 0° 12m 45.36s / day | |
| Inclination | 9.6008° |
| 111.14° | |
| 323.55° | |
| Physical characteristics | |
| Dimensions |
30.57±2.1 km (IRAS:3) 32.80±0.69 km 35.6±3.6 km 35.943±0.183 39.942±0.390 km 40±4 km |
|
12 h 20.4±0.1 h 20.456±0.004 h |
|
|
0.04±0.01 0.0425±0.0069 0.045±0.010 0.05±0.01 0.065±0.003 0.0726±0.011 (IRAS:3) |
|
|
B–V = 0.642 U–B = 0.262 XFU (Tholen) B (SMASS) · B |
|
| 11.04 | |
1655 Comas Solà, provisional designation 1929 WG, is a rare-type asteroid from the middle 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.
Comas Solà shows as rare XFU-type and B-type spectrum in the Tholen and SMASS classification scheme, respectively. It orbits the Sun 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.
A rotational light-curve obtained by American amateur astronomer Robert D. Stephens gave a rotation period of 20.456 hours with a brightness variation of 0.20 magnitude (U=3). 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 kilomters, respectively. The Collaborative Asteroid Lightcurve Link agrees with IRAS, and adopts an albedo of 0.0726 with a diameter of 30.57 kilometers, using an absolute magnitude of 11.04.
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