| Discovery | |
|---|---|
| Discovered by | M. F. Wolf A. Schwassmann |
| Discovery date | 27 October 1899 |
| Designations | |
| MPC designation | (446) Aeternitas |
| Pronunciation | /iːˈtɜːrnɪtæs/ |
| Named after | Aeternitas |
| Alternative designations | 1899 ER |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 116.23 yr (42452 d) |
| Aphelion | 3.14078 AU (469.854 Gm) |
| Perihelion | 2.43222 AU (363.855 Gm) |
| Semi-major axis | 2.78650 AU (416.854 Gm) |
| Eccentricity | 0.12714 |
| Orbital period (sidereal) | 4.65 yr (1699.0 d) |
| Mean anomaly | 83.3875° |
| Mean motion | 0° 12 42.811 / day |
| Inclination | 10.6270° |
| Longitude of ascending node | 42.0823° |
| Argument of perihelion | 279.496° |
| Physical characteristics | |
| Dimensions | 45.40±3.2 km |
| Synodic rotation period | 15.7413 h (0.65589 d) |
| Geometric albedo | 0.2361±0.038 |
| Spectral type | A |
| Absolute magnitude (H) | 8.90 |
446 Aeternitas is a main belt asteroid. It was discovered by Max Wolf and A. Schwassmann on 27 October 1899 in Heidelberg. It is classified as an A-type asteroid. The asteroid is roughly 45 km in diameter and has a high albedo.
References
- ^ "JPL Small-Body Database Browser: 446 Aeternitas (1899 ER)". Jet Propulsion Laboratory. Retrieved 10 May 2016.
External links
- 446 Aeternitas at AstDyS-2, Asteroids—Dynamic Site
- 446 Aeternitas at the JPL Small-Body Database
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