3212 Agricola
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 19 February 1938 |
| Designations | |
| MPC designation | 3212 Agricola |
|
Named after
|
Mikael Agricola (reformer)[2] |
| 1938 DH2 · 1982 BB2 | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 77.83 yr (28,426 days) |
| Aphelion | 2.5977 AU |
| Perihelion | 1.9146 AU |
| 2.2561 AU | |
| Eccentricity | 0.1514 |
| 3.39 yr (1,238 days) | |
| 307.33° | |
| Inclination | 7.8115° |
| 109.98° | |
| 35.228° | |
| Physical characteristics | |
| Dimensions | 4.442±0.287 km[4] 5.41 km (caculated)[3] |
| 9 h[lower-alpha 1] | |
| 0.3907±0.0697[4] 0.24 (assumed)[3] |
|
| S [3] | |
| 13.5[1] | |
3212 Agricola, provisional designation 1938 DH2, is a stony asteroid from the inner regions of the asteroid belt, about 5 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, on 19 February 1938.[5]
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 1.9–2.6 AU once every 3 years and 5 months (1,238 days). Its orbit shows an eccentricity of 0.15 and is tilted by 8 degrees to the plane of the ecliptic.[1] In 2006, a photometric light-curve analysis rendered a rotation period of 9 hours with an amplitude in brightness of 0.07.[lower-alpha 1] Based on observations by the U.S. Wide-field Infrared Survey Explorer, the asteroid's surface has a high albedo of 0.39, while the Collaborative Asteroid Lightcurve Link assumes a more moderate value of 0.24, which is also identical to the albedo of the Flora family's namesake, the asteroid 8 Flora.[3][4]
The minor planet was named for Finnish clergyman Mikael Agricola (c. 1510–1557), bishop and reformer of Finland, often called "father of Finnish literature". Around 1538 he issued his ABC-kiria, the first book printed in the Finnish language, and in 1548 he translated the New Testament into Finnish.[2]
References
- ↑ 1.0 1.1 Pravec (2006) web: rotation period 9 hours with a brightness amplitude of 0.07 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (3212) Agricola
- ↑ 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 3.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 4.0 4.1 4.2 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
- www.asu.cas.cz/~ppravec/neo.htm Pravec, P.; Wolf, M.; Sarounova, L. (2006)
- 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
- 3212 Agricola at the JPL Small-Body Database
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