(1809) Prometheus
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Asteroid (1809) Prometheus |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Koronis family |
| Major semi-axis | 2.9255 AU |
| eccentricity | 0.1029 |
| Perihelion - aphelion | 2.6246 AU - 3.2264 AU |
| Inclination of the orbit plane | 3.2584 ° |
| Sidereal period | 5.00 a |
| Mean orbital velocity | 17.41 km / s |
| Physical Properties | |
| Medium diameter | approx. 14 km |
| Albedo | ? |
| Rotation period | ? H |
| Absolute brightness | 11.7 mag |
| Spectral class | ? |
| history | |
| Explorer |
CJ and I. van Houten-Groeneveld , T. Gehrels |
| Date of discovery | September 24, 1960 |
| Another name | 2522 PL, 1943 EA 1 , 1955 SW, 1955 VA, 1965 UR |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(1809) Prometheus is an asteroid of the main belt that was discovered on September 24, 1960 by the Dutch research team Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels as part of the Palomar-Leiden Survey .
The asteroid is a member of the Koronis family, a group of asteroids named after (158) Koronis . The timeless (non- osculating ) orbital elements of (1809) Prometheus are almost identical to those of the smaller one, assuming the absolute brightness of 14.4 versus 11.6, asteroids (13680) 1997 PY .
The name of (1809) Prometheus is derived from the mythological Greek titan Prometheus .
See also
Individual evidence
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)