996 Hilaritas
From Infogalactic: the planetary knowledge core
| Discovery | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Vienna |
| Discovery date | March 21, 1923 |
| Designations | |
| 1923 NM | |
| Orbital characteristics | |
| Epoch August 18, 2005 (JDCT 2453600.5) | |
| Aphelion | 3.520 AU |
| Perihelion | 2.661 AU |
| 3.091 AU | |
| Eccentricity | 0.139 |
| 5.434 a | |
| 85.910° | |
| Inclination | 0.661° |
| 347.573° | |
| 148.846° | |
996 Hilaritas is a Themistian asteroid. It was discovered in 1923 by Austrian astronomer Johann Palisa. Following Palisa's death in 1925, this asteroid was named for a "happy or contented mind"; qualities associated with the discoverer.[1]
Photometric observations of this asteroid collected during 2010 show a rotation period of 10.052 ± 0.001 hours with a brightness variation of 0.65 ± 0.03 magnitude.[2]
References
External links
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