Global Information1001 Gaussia information
 Orbit of Gaussia (blue) compared to those of the inner planets and Jupiter (outermost) | |
| Discovery[1] | |
|---|---|
| Discovered by | S. Belyavskyj |
| Discovery site | Simeiz Obs. |
| Discovery date | 8 August 1923 |
| Designations | |
MPC designation | (1001) Gaussia |
| Pronunciation | /ˈɡaʊsiə/[2] |
Named after | Carl Friedrich Gauss (German mathematician)[3] |
Alternative designations | 1923 OA · A907 XC A911 MD |
Minor planet category | main-belt · (outer)[1][4] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.33 yr (39,933 days) |
| Aphelion | 3.6150 AU |
| Perihelion | 2.8046 AU |
Semi-major axis | 3.2098 AU |
| Eccentricity | 0.1262 |
Orbital period (sidereal) | 5.75 yr (2,100 days) |
Mean anomaly | 121.11° |
Mean motion | 0° 10m 17.04s / day |
| Inclination | 9.2958° |
Longitude of ascending node | 259.32° |
Argument of perihelion | 142.51° |
| Physical characteristics | |
| Dimensions | 67.80±19.69 km[5] 68.51±21.78 km[6] 72.422±1.517 km[7] 72.711±0.298 km[8] 74.67±3.8 km[9] 74.71 km (derived)[4] 75.40±0.99 km[10] 80.07±0.68 km[11] |
Synodic rotation period | 4.08±0.05 h[12] 9.17±0.01 h[13] 20.99±0.01 h[a] |
Geometric albedo | 0.036±0.007[11] 0.039±0.001[10] 0.0392±0.004[9] 0.041±0.004[8] 0.0416±0.0054[7] 0.0417 (derived)[4] 0.05±0.03[5] 0.05±0.04[6] |
Spectral type | Tholen = PC[1][4] B–V = 0.689[1] U–B = 0.265[1] |
Absolute magnitude (H) | 9.70[4][5][11] · 9.72[6] · 9.77[7][9][10] · 9.8[1] · 9.91±0.26[14] |
Gaussia (minor planet designation: 1001 Gaussia), provisional designation 1923 OA, is a dark background asteroid from the outer regions of the asteroid belt, approximately 73 kilometers in diameter. It was discovered on 8 August 1923, by Soviet astronomer Sergey Belyavsky at the Simeiz Observatory on the Crimean peninsula.[15] The asteroid was named after German mathematician Carl Friedrich Gauss.[3] Gauss computed the orbit of Ceres, and 1001 Gaussia was named along with 1000 Piazzia, and 1002 Olbersia in part for their work on Ceres, with names for Giuseppe Piazzi, who found Ceres, and Heinrich Wilhelm Matthias Olbers, who recovered it later that year.[16]
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MPC-objectwas invoked but never defined (see the help page). - ^ Nicholson, S. B. (1941). "1941ASPL....3..365N Page 365". Leaflet of the Astronomical Society of the Pacific. 3 (147): 365. Bibcode:1941ASPL....3..365N.
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