 Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery date | 16 March 1895 |
| Designations | |
| MPC designation | (401) Ottilia |
| Pronunciation | /ɒˈtɪliə/ |
| Named after | Ottilia |
| Alternative designations | 1895 BT |
| Minor planet category | Main belt (Cybele) |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 121.08 yr (44225 d) |
| Aphelion | 3.45079 AU (516.231 Gm) |
| Perihelion | 3.24397 AU (485.291 Gm) |
| Semi-major axis | 3.34738 AU (500.761 Gm) |
| Eccentricity | 0.036643 |
| Orbital period (sidereal) | 6.12 yr (2234.4 d) |
| Mean anomaly | 172.933° |
| Mean motion | 0° 9 40.032 / day |
| Inclination | 5.9715° |
| Longitude of ascending node | 36.138° |
| Argument of perihelion | 294.690° |
| Physical characteristics | |
| Dimensions | 87.803 km |
| Synodic rotation period | 6.049 h (0.2520 d) |
| Geometric albedo | 0.0412±0.002 |
| Absolute magnitude (H) | 9.2 |
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 at 3.47 AU lies just outside the 2:1 Kirkwood gap, located at 3.27 AU. 401 Ottilia is part of the Cybele asteroid group.
References
- "401 Ottilia (1895 BT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
- Scholl, Hans; Froeschlé, Claude (September 1975), "Asteroidal motion at the 5/2, 7/3 and 2/1 resonances", Astronomy and Astrophysics, 42 (3): 457–463, 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, Bibcode:2001Icar..149..190L, doi:10.1006/icar.2000.6507.
External links
- 401 Ottilia at AstDyS-2, Asteroids—Dynamic Site
- 401 Ottilia at the JPL Small-Body Database
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