1036 Ganymed
From Biocrawler, the free encyclopedia.
| Discovery A (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html) | |
|---|---|
| Discoverer | W. Baade |
| Discovery date | October 23, 1924 |
| Alternate designations | 1924 TD; 1952 BF; 1954 HH B (http://cfa-www.harvard.edu/iau/MPDes.html) |
| Category | Amor, Mars-crosser asteroid |
| Orbital elements C (http://asteroid.lowell.edu/) Epoch October 22, 2004 (JD 2453300.5) | |
| Eccentricity (e) | 0.537 |
| Semi-major axis (a) | 398.198 Gm (2.662 AU) |
| Perihelion (q) | 184.434 Gm (1.233 AU) |
| Aphelion (Q) | 611.961 Gm (4.091 AU) |
| Orbital period (P) | 1586.202 d (4.34 a) |
| Mean orbital speed | 16.86 km/s |
| Inclination (i) | 26.644° |
| Longitude of the ascending node (Ω) | 215.699° |
| Argument of perihelion (ω) | 132.429° |
| Mean anomaly (M) | 152.459° |
| Physical characteristics | |
| Dimensions | 31.7 km |
| Mass | 3.3×1016 kg |
| Density | 2.0 g/cm³ |
| Surface gravity | 0.0089 m/s² |
| Escape velocity | 0.0168 km/s |
| Rotation period | 0.4296 d 1 (http://www.psi.edu/pds/archive/lc.html) |
| Spectral class | S 2 (http://spiff.rit.edu/richmond/parallax/phot/LCSUMPUB.TXT) |
| Absolute magnitude | 9.45 |
| Albedo | 0.292 3 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html) |
| Mean surface temperature | ~160 K |
1036 Ganymed is the largest Amor asteroid. It was discovered by Walter Baade on October 23, 1924 and is named after Ganymede, the beautiful youth with whom Zeus fell in love.
Ganymed is about 32 km in diameter and is an S-type asteroid, meaning that it is highly reflective and composed of nickel-iron mixed with iron- and magnesium-silicates. It is also a Mars-crosser asteroid.
In 1998, a radar study of Ganymed by the Arecibo radio telescope produced some images of the asteroid's shape. Although not very detailed, the images reveal a roughly spherical object.
One occultation of a star by Ganymed was observed from California on August 22, 1985.
Obviously, not to be confused with Jupiter's moon Ganymede.
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