21047 Hodierna
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| Discovery and designation | |
|---|---|
| Discovered by | E. W. Elst |
| Discovery site | European Southern Observatory |
| Discovery date | September 22, 1990 |
| Designations | |
| MPC designation | 21047 |
| Named after | Giovanni Battista Hodierna |
| Alternative names | 1990 SE5 |
| Orbital characteristics | |
| Epoch May 14, 2008 | |
| Aphelion | 4.6913693 |
| Perihelion | 3.2788645 |
| Eccentricity | 0.1772225 |
| Orbital period | 2905.7620212 |
| Mean anomaly | 93.95653 |
| Inclination | 4.49162 |
| Longitude of ascending node | 52.32556 |
| Argument of perihelion | 290.48885 |
| Physical characteristics | |
| Absolute magnitude (H) | 12.9 |
|
| |
21047 Hodierna (1990 SE5) is an outer main-belt asteroid discovered on September 22, 1990 by E. W. Elst at the European Southern Observatory.
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