Discovery [1] | |
---|---|
Discovered by | J. Comas Solà |
Discovery site | Fabra Obs. |
Discovery date | 28 November 1929 |
Designations | |
(1655) Comas Solá | |
Named after |
Josep Comas i Solà (discoverer himself) [2] |
1929 WG · 1929 WC1 1958 BG · A901 VG | |
main-belt · ( middle) [3] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 114.97 yr (41,994 days) |
Aphelion | 3.4357 AU |
Perihelion | 2.1248 AU |
2.7803 AU | |
Eccentricity | 0.2358 |
4.64 yr (1,693 days) | |
323.81 ° | |
0° 12m 45.36s / day | |
Inclination | 9.6002° |
111.14° | |
323.52° | |
Physical characteristics | |
Dimensions | 30.57±2.1 km (
IRAS:3)
[4] 32.80±0.69 km [5] 35.6±3.6 km [6] 35.943±0.183 [7] 39.942±0.390 km [8] 40±4 km [9] |
12
h (dated)
[10] 20.4±0.1 h [11] 20.456±0.004 h [12] | |
0.04±0.01
[9] 0.0425±0.0069 [8] 0.045±0.010 [7] 0.05±0.01 [6] 0.065±0.003 [5] 0.0726±0.011 (IRAS:3) [4] | |
XFU (
Tholen)
[1] B ( SMASS) [1] · B [3] B–V = 0.642 [1] U–B = 0.262 [1] | |
11.04 [1] [3] [4] [5] [6] [8] [9] | |
1655 Comas Solà, provisional designation 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. [13] It was later named after the discoverer. [2]
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. [1] It was first observed as A901 VG at Heidelberg Observatory in 1901, extending the body's observation arc by 28 years prior to its official discovery observation at Barcelona. [13]
Comas Solà shows as rare XFU-type and B-type spectrum in the Tholen and SMASS classification scheme, respectively. [1]
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 ( U=3). [3] [12]
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. [4] [5] [8] [9] More recently published revised WISE/NEOWISE-data gave a refined diameter of 35.6 and 35.94 kilometers, respectively. [6] [7] 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. [3]
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. [2]
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] The official naming citation was published by the Minor Planet Center on 1 June 1980 ( M.P.C. 5357). [2] [14]
Discovery [1] | |
---|---|
Discovered by | J. Comas Solà |
Discovery site | Fabra Obs. |
Discovery date | 28 November 1929 |
Designations | |
(1655) Comas Solá | |
Named after |
Josep Comas i Solà (discoverer himself) [2] |
1929 WG · 1929 WC1 1958 BG · A901 VG | |
main-belt · ( middle) [3] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 ( JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 114.97 yr (41,994 days) |
Aphelion | 3.4357 AU |
Perihelion | 2.1248 AU |
2.7803 AU | |
Eccentricity | 0.2358 |
4.64 yr (1,693 days) | |
323.81 ° | |
0° 12m 45.36s / day | |
Inclination | 9.6002° |
111.14° | |
323.52° | |
Physical characteristics | |
Dimensions | 30.57±2.1 km (
IRAS:3)
[4] 32.80±0.69 km [5] 35.6±3.6 km [6] 35.943±0.183 [7] 39.942±0.390 km [8] 40±4 km [9] |
12
h (dated)
[10] 20.4±0.1 h [11] 20.456±0.004 h [12] | |
0.04±0.01
[9] 0.0425±0.0069 [8] 0.045±0.010 [7] 0.05±0.01 [6] 0.065±0.003 [5] 0.0726±0.011 (IRAS:3) [4] | |
XFU (
Tholen)
[1] B ( SMASS) [1] · B [3] B–V = 0.642 [1] U–B = 0.262 [1] | |
11.04 [1] [3] [4] [5] [6] [8] [9] | |
1655 Comas Solà, provisional designation 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. [13] It was later named after the discoverer. [2]
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. [1] It was first observed as A901 VG at Heidelberg Observatory in 1901, extending the body's observation arc by 28 years prior to its official discovery observation at Barcelona. [13]
Comas Solà shows as rare XFU-type and B-type spectrum in the Tholen and SMASS classification scheme, respectively. [1]
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 ( U=3). [3] [12]
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. [4] [5] [8] [9] More recently published revised WISE/NEOWISE-data gave a refined diameter of 35.6 and 35.94 kilometers, respectively. [6] [7] 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. [3]
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. [2]
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] The official naming citation was published by the Minor Planet Center on 1 June 1980 ( M.P.C. 5357). [2] [14]