207 Hedda
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | October 17, 1879 |
| Designations | |
|
1932 CL1, 1934 XJ, 1953 BF | |
| Main belt | |
| Orbital characteristics | |
| Epoch 30 January 2005 (JD 2453400.5) | |
| Aphelion | 2.35 AU |
| Perihelion | 2.218 AU |
| 2.284 AU | |
| Eccentricity | 0.029 |
|
1260.619 d (3.45 yr) | |
Average orbital speed | 19.71 km/s |
| 275.242° | |
| Inclination | 3.804° |
| 29.292° | |
| 193.504° | |
| Physical characteristics | |
| Dimensions | 59.0 km |
| 19.489[1] h | |
| Albedo | 0.055 |
Spectral type | C |
| 9.92 | |
|
| |
207 Hedda is a sizeable Main belt asteroid. It is a C-type asteroid, meaning it is primitive in composition and dark in colour. This asteroid was discovered by Johann Palisa on October 17, 1879 in Pola and was named after Hedwig, wife of astronomer Friedrich A. T. Winnecke.
Attempts to determine the rotation period for this asteroid have led to conflicting results. A study published in 2010 using photometric observations from Organ Mesa Observatory showed a rotation period of 19.489 ± 0.002 hours and a brightness variation of 0.18 ± 0.02 in magnitude.[1]
References
- 1 2 Pilcher, Frederick (January 2010), "Rotational Period Determination for 23 Thalia, 204 Kallisto and 207 Hedda, and Notes on 161 Athor and 215 Oenone", The Minor Planet Bulletin 37 (1): 21–23, Bibcode:2010MPBu...37...21P.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Albedo Compilation
- 207 Hedda at the JPL Small-Body Database
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