1155 Aënna
From Infogalactic: the planetary knowledge core
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 26 January 1928 |
| Designations | |
| MPC designation | 1155 Aenna |
|
Named after
|
Astronomische Nachrichten (journal)[2] |
| 1928 BD · 1928 FU 1941 UZ · 1982 DR6 |
|
| main-belt | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.65 yr (32,013 days) |
| Aphelion | 2.8685 AU |
| Perihelion | 2.0587 AU |
| 2.4636 AU | |
| Eccentricity | 0.1643 |
| 3.87 yr (1412.4 days) | |
| 147.01° | |
| Inclination | 6.5927° |
| 39.124° | |
| 195.58° | |
| Earth MOID | 1.0486 AU |
| Physical characteristics | |
| Dimensions | 11.64 km |
| 0.3278 | |
| SMASS = Xe | |
| 11.9 | |
1155 Aënna, provisional designation 1928 BD, is a main belt asteroid, approximately 12 kilometers in diameter. The X-type asteroid revolves around the Sun once every 3.87 years. It was discovered by Karl Reinmuth at Heidelberg Observatory, Germany on January 26, 1928.[1]
It was named after one of the first international journals in the field of astronomy, Astronomische Nachrichten. The construct "Aënna" contains the German pronunciation of the initials "A" and "N" followed by the feminine ending. The name was proposed by the Astronomisches Rechen-Institut.[2]
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