49 Pales
Discovery[1] | |
---|---|
Discovered by | Hermann Goldschmidt |
Discovery site | Paris Observatory |
Discovery date | September 19, 1857 |
Designations | |
MPC designation | 49 |
Named after
|
Pales |
Main belt [2] | |
Orbital characteristics[3] | |
Epoch November 30, 2008 | |
Aphelion | 3.8065 AU |
Perihelion | 2.3813 AU |
3.09392 AU | |
Eccentricity | 0.230323 |
1987.75 days (5.44 years) | |
274.69° | |
Inclination | 3.18° |
286.135° | |
109.804° | |
Physical characteristics | |
Dimensions | 149.80 ± 3.8 km Mean diameter[4] |
Mass | 2.69×1018 kg[5] |
10.42 ± 0.02[6] hours | |
Albedo | 0.0597 ± 0.003[4] |
Spectral type
|
C[7] |
7.8[8] | |
49 Pales /ˈpeɪliːz/ is a large, dark main-belt asteroid. It was discovered by German-French astronomer Hermann Goldschmidt on September 19, 1857 from his balcony in Paris.[1] The asteroid is named after Pales, the goddess of shepherds in Roman mythology. Since it was discovered on the same night as 48 Doris, geologist Élie de Beaumont suggested naming the two "The Twins".[9]
Pales has been studied by radar.[10] Photometric observations of this asteroid from the Torino Observatory during 1977 gave a light curve with a period of 10.42 ± 0.02 hours and a brightness variation of 0.18 in magnitude. The curve appeared to show a secondary minima.[6] The shape of the curve has a similar appearance to the light curve of binary star Algol, suggesting that this may be a binary asteroid system.[11]
References
- ↑ 1.0 1.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.[dead link]
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.[dead link]
- ↑ Lua error in package.lua at line 80: module 'strict' not found.[dead link]
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Orbital simulation from JPL (Java) / Ephemeris
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