1580 Betulia
| Discovery and designation | |
|---|---|
| Discovered by | Johnson, E. L. |
| Discovery site | Johannesburg (UO) |
| Discovery date | May 22, 1950 |
| Designations | |
| MPC designation | 1580 |
| Alternative names | 1950 KA |
| Minor planet category | Amor  |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Ap | 3.268465159041795 |
| Peri | 1.12550179562558 |
| Eccentricity | .4877058442917759 |
| Orbital period | 1189.429246506845 |
| Mean anomaly | 302.9904195628954 |
| Inclination | 52.09132036275521 |
| Longitude of ascending node | 62.32691089426164 |
| Argument of peri | 159.5310408236107 |
| Physical characteristics | |
| Dimensions | 4.57 km [1] |
| Rotation period | 6.13836 hr [2] |
| Pole ecliptic latitude | 22° [2] |
| Pole ecliptic longitude | 136° [2] |
| Geometric albedo | 0.077 [1] |
| Absolute magnitude (H) | 14.53 [1] |
1580 Betulia (provisional designation: 1950 KA) is an Amor asteroid discovered on May 22, 1950 by Ernest Leonard Johnson at the Union Observatory, Johannesburg, South Africa. Betulia's shape has been accurately determined: at its widest point, the asteroid is 6.59 ± .66 km wide; however, its effective diameter is 5.39 ± .54 km.[2]
The name honours Betulia Toro, wife of the astronomer Samuel Herrick. Herrick had studied the asteroid's orbit, and requested the name, along with that of 1685 Toro.[3][4]
References
- ^ a b c "1580 Betulia". European Asteroid Research Node.
- ^ a b c d Christopher, Magri; et al. (2007). "Radar observations and a physical model of Asteroid 1580 Betulia". Icarus 186 (1): 152–177. Bibcode:2007Icar..186..152M. doi:10.1016/j.icarus.2006.08.004.
- ^ Lutz D. Schmadel, Dictionary of Minor Planet Names: Addendum to Fifth Edition: 2006 - 2008.
- ^ University of California, Samuel Herrick, Engineering; Astronomy: Los Angeles
Further reading
- Harris, Alan W.; Mueller, Michael; Delbó, Marco; Busc, Schelte J. (December 2005). "The surface properties of small asteroids: Peculiar Betulia - A case study". Icarus 179 (1): 95–108. Bibcode:2005Icar..179...95H. doi:10.1016/j.icarus.2005.05.010.
- Lebofsky, L. A.; Veeder, G. J.; Lebofsky, M. J.; Matson, D. L. (September 1978). "Visual and radiometric photometry of 1580 Betulia". Icarus 35 (3): 336–343. Bibcode:1978Icar...35..336L. doi:10.1016/0019-1035(78)90086-6.
External links
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