Discovery[1] | |
---|---|
Discovered by | G. Reiss |
Discovery site | Algiers Obs. |
Discovery date | 5 December 1931 |
Designations | |
(1213) Algeria | |
Named after | Algeria (country)[2] |
1931 XD | |
main-belt · (outer)[3] | |
Orbital characteristics | |
Epoch 16 February 2017 (JD 2457800.5) | |
Uncertainty parameter 0 | |
Observation arc | 84.53 yr (30,873 days) |
Aphelion | 3.5408 AU |
Perihelion | 2.7442 AU |
3.1425 AU | |
Eccentricity | 0.1267 |
5.57 yr (2,035 days) | |
168.11° | |
0° 10m 36.84s / day | |
Inclination | 13.064° |
271.54° | |
108.60° | |
Physical characteristics | |
Dimensions | 29.175±0.251[4] 30.189±0.239 km[5] 30.6±3.1 km[6] 31±3 km[7] 33.08 km (derived)[3] 33.20±4.7 km (IRAS:3)[8] 33.51±0.78 km[9] 34.46±0.67 km[10] |
16 h[11] | |
0.057±0.010[9][4] 0.0586 (derived)[3] 0.06±0.01[7] 0.07±0.01[6] 0.076±0.003[10] 0.0767±0.027 (IRAS:3)[8] 0.0934±0.0106[5] | |
C[3] | |
10.8[5][8][10] 11.1[1][3][6][7][9] 11.33±0.30[12] | |
1213 Algeria (provisional designation 1931 XD) is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 32 kilometers in diameter. Discovered by Guy Reiss at Algiers Observatory in 1931, it was named after the North African country of Algeria.
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