1726 Hoffmeister
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 24 July 1933 |
| Designations | |
| MPC designation | 1726 Hoffmeister |
|
Named after
|
Cuno Hoffmeister (astronomer)[2] |
| 1933 OE · 1955 FC 1955 HX · 1957 WD A924 UA |
|
| main-belt · (outer) [3] Hoffmeister family[4] |
|
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 90.64 yr (33,107 days) |
| Aphelion | 2.9053 AU |
| Perihelion | 2.6726 AU |
| 2.7889 AU | |
| Eccentricity | 0.0417 |
| 4.66 yr (1,701 days) | |
| 233.80° | |
| Inclination | 3.4811° |
| 231.00° | |
| 67.802° | |
| Physical characteristics | |
| Dimensions | 26.27 km[1] 17.35 km (calculated)[3] |
| 11.7058 h[5] | |
| 0.0370[1] 0.057 (assumed)[3] |
|
| SMASS = Cb C [3] |
|
| 12.2 | |
1726 Hoffmeister, provisional designation 1933 OE, is a dark, carbonaceous asteroid from the outer region of the asteroid belt, about 26 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 24 July 1933.[6]
The C-type asteroid with a Cb-subtype in the SMASS taxonomy, orbits the Sun at a distance of 2.7–2.9 AU once every 4 years and 8 months (1,701 days). Its orbit shows an eccentricity of 0.04 and is tilted by 3 degrees to the plane of the ecliptic. It has a rotation period of 11.7 hours[5] and an very low geometric albedo of 0.04. It is the lowest-numbered and probably the largest member of the small, very compact dynamical Hoffmeister family. Based upon the low albedo, it was most likely formed from the breakup of a carbon-rich asteroid about 50–100 km in diameter within the past several hundred million years.[4]
The minor planet was named in memory of German astronomer Cuno Hoffmeister (1892–1968), founder and later director of the Sonneberg Observatory after which the asteroid 1039 Sonneberga is named. He was best known as a prolific discoverer and observer of variable stars, for his extensive work on meteors, and for the discovery of a comet and several minor planets. The minor planet 4183 Cuno and the lunar crater Hoffmeister are also named in his honor.[2]
References
- ↑ 1.0 1.1 1.2 1.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1726 Hoffmeister at the JPL Small-Body Database
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