|
Discovery
|
|
|---|---|
| Discovered by | C. A. Wirtanen |
| Discovery date | March 7, 1948 |
|
Designations
|
|
| Named after | Antinous |
| Alternate name(s) | 1948 EA |
| Minor planet category |
Apollo, Mars crosser |
| Epoch January 1, 2006 (JD 2453736.5 ) | |
| Aphelion | 543.06 Gm (3.63 AU) |
| Perihelion | 132.90 Gm (0.89 AU) |
| Semi-major axis | 337.98 Gm (2.26 AU) |
| Eccentricity | .61 |
| Orbital period | 1240.35 d 3.40 a |
| Average orbital speed | 17.84 km/s |
| Mean anomaly | 341.71° |
| Inclination | 18.40° |
| Longitude of ascending node | 346.60° |
| Argument of perihelion | 267.97° |
|
Physical characteristics
|
|
| Dimensions | 2 km |
| Rotation period | 7.46 h |
| Albedo | .24 |
| Spectral type | Sq |
| Absolute magnitude (H) | 15.54 |
1863 Antinous is an Apollo and Mars crosser asteroid, discovered in 1948 by Carl A. Wirtanen. It was named after Antinous of Greek mythology.
In the 20th century Antinous passed within 30 Gm of the Earth five times; it will do so only once in the 21st. The nearest distance increases each time, from 26 to 29 Gm.
See also: List of asteroids
|
|||||
|
||||||||||||||||||||||