Astronomy:401 Ottilia
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Short description: Main-belt asteroid
 Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery date | 16 March 1895 |
| Designations | |
| (401) Ottilia | |
| Pronunciation | /ɒˈtɪliə/ |
| Named after | Ottilia |
| 1895 BT | |
| Minor planet category | Main belt (Cybele) |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 121.08 yr (44225 d) |
| |{{{apsis}}}|helion}} | 3.46736 astronomical unit|AU (518.710 Gm) |
| |{{{apsis}}}|helion}} | 3.2222 AU (482.03 Gm) |
| 3.34480 AU (500.375 Gm) | |
| Eccentricity | 0.036643 |
| Orbital period | 6.12 yr (2234.4 d) |
| Mean anomaly | 172.933° |
| Mean motion | 0° 9m 40.032s / day |
| Inclination | 5.9715° |
| Longitude of ascending node | 36.138° |
| 294.690° | |
| Physical characteristics | |
| Dimensions | 99.12±2.1 km |
| Rotation period | 6.049 h (0.2520 d) |
| Geometric albedo | 0.0412±0.002 |
| Absolute magnitude (H) | 9.2 |
Ottilia (minor planet designation: 401 Ottilia) is a large main-belt asteroid. It was discovered by Max Wolf on March 16, 1895, in Heidelberg. It is named after the Germanic folkloric character Ottilia.
The semi-major axis of the orbit of 401 Ottilia lies just outside the 2/1 Kirkwood gap, located at 3.27 AU.[2] 401 Ottilia is part of the Cybele asteroid group.[3]
References
- ↑ "401 Ottilia (1895 BT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=401;cad=1.
- ↑ "Asteroidal motion at the 5/2, 7/3 and 2/1 resonances", Astronomy and Astrophysics 42 (3): 457–463, September 1975, Bibcode: 1975A&A....42..457S
- ↑ Lagerkvist, Claes-Ingvar et al. (January 2001), "A Study of Cybele Asteroids. I. Spin Properties of Ten Asteroids", Icarus 149 (1): 190–197, doi:10.1006/icar.2000.6507, Bibcode: 2001Icar..149..190L.
External links
- 401 Ottilia at AstDyS-2, Asteroids—Dynamic Site
- 401 Ottilia at the JPL Small-Body Database
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