126 Velleda
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Discovery
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Discovered by | Paul Henry and Prosper Henry |
Discovery date | November 5, 1872 |
Designations
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Alternative names | |
Minor planet category |
Main belt |
Epoch December 31, 2006 (JD 2454100.5) | |
Aphelion | 403.523 Gm (2.697 AU) |
Perihelion | 326.153 Gm (2.180 AU) |
Semi-major axis | 364.838 Gm (2.438644[1] AU) |
Eccentricity | 0.1060806[1] |
Orbital period | 1391.107 d (3.81 a) |
Average orbital speed | 19.02 km/s |
Mean anomaly | 117.027° |
Inclination | 2.92451°[1] |
Longitude of ascending node | 23.47325°[1] |
Argument of perihelion | 327.94065°[1] |
Physical characteristics
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Dimensions | 44.82 km[1] |
Mass | 9.4×1016 kg |
Mean density | ? g/cm³ |
Equatorial surface gravity | 0.0125 m/s² |
Escape velocity | 0.0237 km/s |
Rotation period | 5.364 ± 0.003 d[2] |
Albedo | 0.1723[1] |
Temperature | ~178 K |
Spectral type | S |
Absolute magnitude | 9.27[1] |
126 Velleda is a Main belt asteroid. It is probably a rather typical, albeit sizable, S-type asteroid. It was discovered by Paul Henry on November 5, 1872 in Paris, France. It was his first credited discovery. He and his brother Prosper Henry discovered a total of 14 asteroids.
This asteroid rotates once every 5 days, 8 hours and 44 minutes. During each rotation the light curve varies by 0.22 magnitudes.[2]
[edit] References
- ^ a b c d e f g h 126 Velleda. JPL Small-Body Database Browser. NASA JPL (August 29, 2003). Retrieved on 2007-03-12.
- ^ a b Dovgopol, A. N.; Kruglyi, Iu. N.; Shevchenko, V. G. (1992). "Asteroid 126 Velleda - Rotation period and magnitude-phase curve". Acta Astronomica 42 (1): 67-72.
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