390 Alma
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Discovery | |
---|---|
Discovered by | Guillaume Bigourdan |
Discovery date | 24 March 1894 |
Designations | |
(390) Alma | |
Named after | Alma River |
1894 BC; 1930 QW; 1950 BV; 1950 CH; 1953 YB; 1963 DF | |
Main belt (Eunomia family) | |
Orbital characteristics[1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 122.02 yr (44568 d) |
Aphelion | 3.00211 AU (449.109 Gm) |
Perihelion | 2.29906 AU (343.934 Gm) |
2.65059 AU (396.523 Gm) | |
Eccentricity | 0.13262 |
4.32 yr (1576.2 d) | |
136.953° | |
0° 13m 42.229s / day | |
Inclination | 12.1645° |
305.223° | |
190.194° | |
Physical characteristics | |
Dimensions | 23.74±1.4 km[1] 24 km[2] |
Mean density | ~2.7 g/cm3[3] |
3.74 h (0.156 d)[1] 0.156 d[4] | |
0.2190±0.029 | |
S-type asteroid | |
10.39 | |
Alma (minor planet designation: 390 Alma) is an asteroid from the intermediate asteroid belt, approximately 24 kilometers in diameter. It was Guillaume Bigourdan's only asteroid discovery. He discovered it on 24 March 1894 in Paris.[1]
References
- ^ a b c d "390 Alma (1894 BC)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
- ^ "Supplemental IRAS Minor Planet Survey". Archived from the original on 23 June 2006.
- ^ G. A. Krasinsky; et al. (2002). "Hidden Mass in the Asteroid Belt". Icarus. 158 (1): 98. Bibcode:2002Icar..158...98K. doi:10.1006/icar.2002.6837.
- ^ "PDS lightcurve data". Archived from the original on 14 June 2006.
External links
- 390 Alma at AstDyS-2, Asteroids—Dynamic Site
- 390 Alma at the JPL Small-Body Database
Categories:
- Articles with short description
- Short description matches Wikidata
- Use dmy dates from June 2017
- Minor planet object articles (numbered)
- Articles with JPL SBDB identifiers
- Articles with MPC identifiers
- Background asteroids
- Discoveries by Guillaume Bigourdan
- Named minor planets
- DT-type asteroids (Tholen)
- Astronomical objects discovered in 1894
- All stub articles
- S-type main-belt-asteroid stubs