7939 Asphaug
| Discovery and designation | |
|---|---|
| Discovered by | Eleanor F. Helin |
| Discovery date | January 14, 1991 |
| Designations | |
Named after | Erik Ian Asphaug |
| 1968 UW; 1986 SK; 1991 AP1 | |
| Main belt | |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 428.955 Gm (2.867 AU) |
| Perihelion | 278.368 Gm (1.861 AU) |
| 353.661 Gm (2.364 AU) | |
| Eccentricity | 0.213 |
| 1327.674 d (3.63 a) | |
Average orbital speed | 19.15 km/s |
| 176.739° | |
| Inclination | 1.500° |
| 332.183° | |
| 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 |
| ?° | |
Pole ecliptic latitude | ? |
Pole ecliptic longitude | ? |
| 0.10 | |
| Temperature | ~181 K |
| ? | |
| 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.
External links
- 7939 Asphaug on NASA/JPL Small-Body Database
- 7939 Asphaug orbit
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