1657 Roemera
From Wikipedia, the free encyclopedia
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Discovery
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| Discovered by | Paul Wild |
| Discovery date | March 6, 1961 |
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Designations
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| Named after | Elizabeth Roemer |
| Alternate name(s) | 1961 EA |
| Minor planet category |
Main belt |
| Epoch December 1, 2005 (JD2453705.5 ) | |
| Aphelion | 2.900 AU |
| Perihelion | 1.798 AU |
| Semi-major axis | 2.349 AU |
| Eccentricity | 0.235 |
| Orbital period | 1314.921 d |
| Average orbital speed | 19.163 km/s |
| Mean anomaly | 157.949° |
| Inclination | 23.405 ° |
| Longitude of ascending node | 105.451° |
| Argument of perihelion | 53.935° |
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Physical characteristics
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| Dimensions | ? km |
| Rotation period | 4.5 h |
| Spectral type | S |
| Absolute magnitude (H) | 16.9 |
The minor planet 1657 Roemera was discovered in 1961 by Paul Wild, and named for Elizabeth Roemer, an American astronomer.
[edit] References
- Catchall Catalog of Minor Planets
- AstDys
- NASA JPL Small-Body Database Browser on 1657 Roemera
- telnet://ssd.jpl.nasa.gov:6775 telnet for JPL Horizons, easier and more comprehensive than web version
See also: List of asteroids
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