1309 Hyperborea
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| Discovery[1] | |
|---|---|
| Discovered by | Grigory Neujmin |
| Discovery site | Simeiz Observatory |
| Discovery date | October 11, 1931 |
| Designations | |
| MPC designation | 1309 |
| Named after | Hyperborea |
| Alternative names | 1931 TO |
| Minor planet category | outer main-belt asteroid [2] |
| Orbital characteristics[3] | |
| Epoch November 30, 2008 | |
| Aphelion | 3.6902 AU |
| Perihelion | 2.7129 AU |
| Semi-major axis | 3.20154 AU |
| Eccentricity | 0.15262 |
| Orbital period | 2092.36 days (5.73 years) |
| Mean anomaly | 100.89° |
| Inclination | 10.291° |
| Longitude of ascending node | 206.183° |
| Argument of perihelion | 246.413° |
| Physical characteristics | |
| Dimensions |
57.15 kilometres (35.51 mi) ± 3.9 kilometres (2.4 mi) Mean diameter[4] |
| Rotation period | 13.88 ± 0.02 hours [5] |
| Albedo | 0.0450 ± 0.007 [4] |
| Absolute magnitude (H) | 10.20 [6] |
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1309 Hyperborea (1931 TO) is an outer main-belt asteroid discovered on October 11, 1931 by Grigory Neujmin at Simeiz Observatory.[1] This asteroid was named for the homeland of the Hyperboreans a group of people from greek mythology.[7]
References
- ↑ 1.0 1.1 "Discovery Circumstances: Numbered Minor Planets (1)-(5000)". IAU: Minor Planet Center. Archived from the original on 02 February 2009. Retrieved December 23, 2008.
- ↑ "1309 Hyperborea (1931 TO)". JPL Small-Body Database. Jet Propulsion Laboratory. Retrieved December 23, 2008.
- ↑ "(1309) Hyperborea". AstDyS. University of Pisa. Retrieved December 23, 2008.
- ↑ 4.0 4.1 Tedesco et al. (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Archived from the original on 2010-01-17. Retrieved December 23, 2008.
- ↑ Oliver et al. (2008). "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory: 2008 March". The Minor Planet Bulletin 35 (4): 149–150. Bibcode:2008MPBu...35..149O.
- ↑ Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on June 11, 2008. Retrieved December 24, 2008.
- ↑ Schmadel, Lutz (2003). Dictionary of minor planet names (fifth ed.). Germany: Springer. p. 107. ISBN 978-3-540-00238-3. Retrieved December 23, 2008. "Discovered 1931 Oct. 11 ... Named ... region in Greek mythology"
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