Discovery | |
---|---|
Discovered by | Johann Palisa |
Discovery date | 15 April 1888 |
Designations | |
(275) Sapientia | |
Pronunciation | /seɪpiˈɛnʃə/ |
Named after | Sapientia |
A888 GB, 1906 AB 1962 GE, 1962 HA | |
Main belt | |
Orbital characteristics [1] | |
Epoch 31 July 2016 ( JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 124.23 yr (45374 d) |
Aphelion | 3.22294 AU (482.145 Gm) |
Perihelion | 2.31754 AU (346.699 Gm) |
2.77024 AU (414.422 Gm) | |
Eccentricity | 0.16342 |
4.61 yr (1684.1 d) | |
300.952 ° | |
0° 12m 49.54s / day | |
Inclination | 4.76416° |
134.097° | |
40.0578° | |
Physical characteristics | |
Dimensions | 103
km
[1] 95.48 ± 1.11 km [2] |
Mass | (1.538 ± 0.727/0.322)×1018 kg [2] |
Mean
density | 3.374 ± 1.595/0.706 g/cm3 [2] |
14.933 h (0.6222 d) [1] | |
0.049 ± 0.009 [1] | |
C | |
9.06 [1] | |
275 Sapientia is a very large Main belt asteroid that was discovered by Johann Palisa on 15 April 1888 in Vienna. It is classified as a C-type asteroid and is probably composed of carbonaceous material. It is named for the Roman personification of wisdom, Sapientia. [3]
Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado, during 2007 produced a light curve with an estimated period of 14.766±0.006 hours with a brightness range of 0.11±0.02 in magnitude. [4] A 2014 study found a period of 14.931±0.001 hours with a variation of 0.12±0.01 in magnitude. The light curve was found to be irregular, suggesting the asteroid has an irregular shape. [5] On September 30, 2015, the asteroid was observed occulting the 7th magnitude star HIP 14977 from multiple sites in Europe. The resulting chords showed a nearly circular prolate spheroid profile. [6]