.png) A three-dimensional model of 435 Ella based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | M. F. Wolf A. Schwassmann |
| Discovery date | 11 September 1898 |
| Designations | |
| MPC designation | (435) Ella |
| Alternative designations | 1898 DS |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 117.60 yr (42955 d) |
| Aphelion | 2.8297 AU (423.32 Gm) |
| Perihelion | 2.0688 AU (309.49 Gm) |
| Semi-major axis | 2.4492 AU (366.40 Gm) |
| Eccentricity | 0.15533 |
| Orbital period (sidereal) | 3.83 yr (1400.1 d) |
| Mean anomaly | 265.450° |
| Mean motion | 0° 15 25.668 / day |
| Inclination | 1.8168° |
| Longitude of ascending node | 23.192° |
| Argument of perihelion | 333.682° |
| Physical characteristics | |
| Dimensions | 41.49±1.5 km |
| Synodic rotation period | 4.623 h (0.1926 d) |
| Geometric albedo | 0.0831±0.006 |
| Absolute magnitude (H) | 10.23 |
435 Ella is a typical Main belt asteroid. It was discovered by Max Wolf and A. Schwassmann on 11 September 1898 in Heidelberg. This is the eponymous member of a proposed asteroid family with at least 15 members.
Photometric observations during 1995 show a rotation period of 4.264 hours. 435 Ella is classified as a DCX-type asteroid.
References
- "435 Ella (1898 DS)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Archived from the original on 16 September 2020. Retrieved 10 May 2016.
- Bendjoya, P. (November 1993), "A Classification of 6479 Asteroids Into Families by Means of the Wavelet Clustering Method", Astronomy and Astrophysics Supplement, 102 (1): 25, Bibcode:1993A&AS..102...25B.
- Piironen, J.; et al. (March 1998), "Physical studies of asteroids. XXXII. Rotation periods and UBVRI-colours for selected asteroids", Astronomy and Astrophysics Supplement, 128 (3): 525–540, Bibcode:1998A&AS..128..525P, doi:10.1051/aas:1998393.
External links
- 435 Ella at AstDyS-2, Asteroids—Dynamic Site
- 435 Ella at the JPL Small-Body Database
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