1036 Ganymed
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Discovery
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| Discovered by | W. Baade |
| Discovery date | October 23, 1924 |
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Designations
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| Alternative names | 1924 TD; 1952 BF; 1954 HH |
| Minor planet category |
Amor, Mars-crosser asteroid |
| Epoch October 22, 2004 (JD 2453300.5) | |
| Aphelion | 611.961 Gm (4.091 AU) |
| Perihelion | 184.434 Gm (1.233 AU) |
| Semi-major axis | 398.198 Gm (2.662 AU) |
| Eccentricity | 0.537 |
| Orbital period | 1586.202 d (4.34 a) |
| Average orbital speed | 16.86 km/s |
| Mean anomaly | 152.459° |
| Inclination | 26.644° |
| Longitude of ascending node | 215.699° |
| Argument of perihelion | 132.429° |
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Physical characteristics
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| Dimensions | 31.7 km |
| Mass | 3.3×1016 kg |
| Mean density | 2.0 g/cm³ |
| Equatorial surface gravity | 0.0089 m/s² |
| Escape velocity | 0.0168 km/s |
| Rotation period | 10.31 h [1] |
| Albedo | 0.17 [2] |
| Temperature | ~160 K |
| Spectral type | S [3] |
| Apparent magnitude | 8.1 [4] |
| Absolute magnitude | 9.45 |
1036 Ganymed (pronounced /ˈɡænɨmɛd/) is the largest Amor asteroid. It was discovered by Walter Baade on October 23, 1924 and is named after Ganymede, the Trojan prince turned god whom Zeus designated the cupbearer to the Greek gods. Jupiter's moon Ganymede is also named after that individual.
Ganymed is about 32 km in diameter and is an S-type asteroid, meaning that it is relatively reflective and composed of iron- and magnesium-silicates. It is also a Mars-crosser asteroid.
In 1998, radar observations of Ganymed by the Arecibo radio telescope produced images of the asteroid, revealing a roughly spherical object.
One occultation of a star by Ganymed was observed from California on August 22, 1985.
[edit] References
- ^ NASA JPL Small-Body Database Browser on 1036 Ganymed
- ^ Database of Near-Earth Asteroids
- ^ http://spiff.rit.edu/richmond/parallax/phot/LCSUMPUB.TXT
- ^ Donald H. Menzel and Jay M. Pasachoff (1983). A Field Guide to the Stars and Planets, 2nd edition, Boston, MA: Houghton Mifflin, p. 391. ISBN 0395348358.
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