(697) Galilea
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Asteroid (697) Galilea |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2,882 AU |
| eccentricity | 0.158 |
| Perihelion - aphelion | 2.428 AU - 3.336 AU |
| Inclination of the orbit plane | 15.2 ° |
| Length of the ascending node | 15.6 ° |
| Argument of the periapsis | 334 ° |
| Time of passage of the perihelion | November 8, 2010 |
| Sidereal period | 4 a 326 d |
| Mean orbital velocity | 17.4 km / s |
| Physical Properties | |
| Medium diameter | approx. 80 km |
| Albedo | 0.04 |
| Rotation period | (16.538 ± 0.002) h |
| Absolute brightness | 9.6 likes |
| Spectral class | C. |
| history | |
| Explorer | Joseph Helffrich |
| Date of discovery | February 14, 1910 |
| Another name | 1910 JO, 1945 GE, 1979 FL 2 , A910 DA |
| 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. | |
(697) Galilea is an asteroid of the main belt that was discovered on February 14, 1910 by the German astronomer Joseph Helffrich in Heidelberg . A rotation period of 16.5 hours was determined photometrically for the asteroid, the amplitude being 0.3 mag.
The name reminds of the discovery of the Galilean moons .
Individual evidence
- ↑ a b E. E. Sheridan: Rotational Periods and Lightcurve Photometry of 697 Galilea, 1086 Nata, 2052 Tamriko, 4451 Grieve, and (27973) 1997 TR25. (PDF; 268 kB). In: The Minor Planet Bulletin. Vol. 29, p. 32 f.