Astronomy:304 Olga
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Short description: Large Main belt asteroid
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 14 February 1891 |
| Designations | |
| (304) Olga | |
| Pronunciation | /ˈɒlɡə/, German: [ˈɔlɡaː][1] |
| A891 CB; 1952 SJ | |
| Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 124.78 yr (45577 d) |
| |{{{apsis}}}|helion}} | 2.93719 astronomical unit|AU (439.397 Gm) |
| |{{{apsis}}}|helion}} | 1.86853 AU (279.528 Gm) |
| 2.40286 AU (359.463 Gm) | |
| Eccentricity | 0.22237 |
| Orbital period | 3.72 yr (1360.5 d) |
| Mean anomaly | 63.6148° |
| Mean motion | 0° 15m 52.607s / day |
| Inclination | 15.8530° |
| Longitude of ascending node | 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] |
| Rotation period | 18.36 h (0.765 d) |
| Geometric albedo | 0.0488±0.003 |
| C | |
| Absolute magnitude (H) | 9.74 |
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.
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]
- Orbit diagram
References
- ↑ (German Names)
- ↑ 2.0 2.1 "304 Olga". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=304;cad=1.
- ↑ 3.0 3.1 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: pp. 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. See Table 1.
- ↑ 4.0 4.1 Lunar and planetary science: abstracts of papers submitted to the ... Lunar and Planetary Science Conference. Lunar and Planetary Institute. 1996. https://books.google.com/books?id=kJDvAAAAMAAJ.
- ↑ 5.0 5.1 "ASU - Chondrites". https://meteorites.asu.edu/meteorites/meteorite-types/stony-meteorites/chondrites.
External links
- 304 Olga at AstDyS-2, Asteroids—Dynamic Site
- 304 Olga at the JPL Small-Body Database
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