7939 Asphaug
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| Discovery[1] and Designation | |
|---|---|
| Discovered by: | Eleanor F. Helin |
| Discovery date: | January 14, 1991 |
| Alternative names: [2] | 1968 UW; 1986 SK; 1991 AP1 |
| Minor planet category: | Main belt |
| Orbital characteristics[3] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 428.955 Gm (2.867 AU) |
| Perihelion distance: | 278.368 Gm (1.861 AU) |
| Semi-major axis: | 353.661 Gm (2.364 AU) |
| Eccentricity: | 0.213 |
| Orbital period: | 1327.674 d (3.63 a) |
| Avg. orbital speed: | 19.15 km/s |
| Mean anomaly: | 176.739° |
| Inclination: | 1.500° |
| Longitude of ascending node: | 332.183° |
| Argument of perihelion: | 84.881° |
| Physical characteristics | |
| Dimensions: | ? km |
| Mass: | ?×10? kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | ? m/s² |
| Equatorial Escape velocity: | ? km/s |
| Sidereal rotation period: | ? d |
| Axial tilt: | ?° |
| Pole ecliptic latitude: | ? |
| Pole ecliptic longitude: | ? |
| Geometric albedo: | 0.10 |
| Temperature: | ~181 K |
| Spectral type: | ? |
| Absolute magnitude: | 14.4 |
7939 Asphaug is an asteroid named for Dr. Erik I. Asphaug, recipient of the 1998 H. C. Urey Prize and a professor at the University of California, Santa Cruz.
[edit] External links
- 7939 Asphaug on NASA/JPL Small-Body Database
- 7939 Asphaug orbit
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|---|---|---|
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