Asteroid 90 Antiope
Named after Antiope, a character in Greek Mythology. She is the sister of Hippolyte and was kidnapped by Theseus, during Heracles' ninth labor.
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This file is not available for download, but provided by the Alcyone Ephemeris Small Body Data File DVD.
| Classification | Main-belt Asteroid |
| Family | Themistian asteroid family |
| Notes | a double asteroid, consisting of two individual bodies (the "secondary" is designated S/2000 (90) 1), each about 110±16 km across, separated by only 170 kilometers |
Osculating Orbital Elements
| Epoch | 2444238,5 |
| Semi major axis | 3,1441 AU |
| Period [Julian yrs] | 5,575 Julian years |
| Inclination | 2,238 ° |
| Eccentricity | 0,1673 |
| Lon. of ascending node | 71,192 ° |
| Argument of perihelion | 235,052 ° |
| Passage of perihelion | 1977-Sep-11.902190 |
| Aphelion distance | 3,6699 AU |
| Mean anomaly | 148,524 ° |
Physical Data
| Radius | 60,04 km |
| Rotation period | 16,509 days |
| Absolute magnitude (H) | 8,068 |
| Magnitude Slope (G) | 0,15 |
| Color index (B-V) | 0,688 |
| Geometric albedo | 0,0603 |
| Spectral class | C |
Discovery Circumstances
| Discoverer | Robert Luther |
| Discovered | 1866-10-01 |
Data File
| Data File Name | 90_Antiope.aed |
| Data File Date | 2006-07-19 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
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