304 Olga
Olga (minor planet designation: 304 Olga) is a large Main belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
Discovery | |
---|---|
Discovered by | Johann Palisa |
Discovery date | 14 February 1891 |
Designations | |
(304) Olga | |
Pronunciation | /ˈɒlɡə/, German: [ˈɔlɡaː][1] |
Main belt | |
Orbital characteristics[2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 124.78 yr (45577 d) |
Aphelion | 2.93719 AU (439.397 Gm) |
Perihelion | 1.86853 AU (279.528 Gm) |
2.40286 AU (359.463 Gm) | |
Eccentricity | 0.22237 |
3.72 yr (1360.5 d) | |
63.6148° | |
0° 15m 52.607s / day | |
Inclination | 15.8530° |
159.080° | |
172.423° | |
Physical characteristics | |
Dimensions | 67.86±2.1 km[2] 70.30 ± 2.32 km[3] |
Mass | (1.15 ± 1.12) × 1018 kg[3] |
18.36 h (0.765 d) | |
0.0488±0.003 | |
C | |
9.74 | |
It was discovered by Johann Palisa on 14 February 1891 in Vienna.
304 Olga was identified as one of three asteroids that were likely to be a parent body for chondrites along with 449 Hamburga and 335 Roberta.[4] All three asteroids were known to have low-albedo (not reflect as much light) and be close to "meteorite producing resonances".[4] Chrondrites are the most common type of meteor found on Earth, accounting for over 80% of all meteors.[5] They are named for the tiny spherical silicate particles that are found inside them (those particles are called chondrules).[5]
References
- (German Names)
- "304 Olga". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- Lunar and planetary science: abstracts of papers submitted to the ... Lunar and Planetary Science Conference. Lunar and Planetary Institute. 1996.
- ASU - Chondrites
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