276 Adelheid
.png) A three-dimensional model of 276 Adelheid based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | April 17, 1888 |
| Designations | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 499.623 Gm (3.34 AU) |
| Perihelion | 431.765 Gm (2.886 AU) |
| 465.694 Gm (3.113 AU) | |
| Eccentricity | 0.073 |
| 2006.1 d (5.49 a) | |
Average orbital speed | 16.88 km/s |
| 168.822° | |
| Inclination | 21.645° |
| 211.301° | |
| 268.386° | |
| Physical characteristics | |
| Dimensions | 122.0 km |
| Albedo | 0.045[2] |
Spectral type | PC |
| 8.56 | |
276 Adelheid is a very large main-belt asteroid that was discovered by Austrian astronomer Johann Palisa on April 17, 1888, in Vienna.
This asteroid has a diameter of 122 km and a geometric albedo of 0.045.[2] Photometric observations in 1992 gave a light curve with a period of 6.328 ± 0.012 hours and a brightness variation of 0.10 ± 0.02 in magnitude. The curve is regular with two maxima and minima. This object has a spectrum that matches an X-type classification.[3]
References
- ^ Yeomans, Donald K., "276 Adelheid", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 2013-03-25.
- ^ a b Marciniak, A.; et al. (October 2007), "Photometry and models of selected main belt asteroids. IV. 184 Dejopeja, 276 Adelheid, 556 Phyllis", Astronomy and Astrophysics, 473 (2): 633–639, Bibcode:2007A&A...473..633M, doi:10.1051/0004-6361:20077694.
- ^ di Martino, M.; et al. (July 1995), "Intermediate size asteroids: Photoelectric photometry of 8 objects.", Astronomy and Astrophysics Supplement, vol. 112, pp. 1–7, Bibcode:1995A&AS..112....1D.
External links
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