1449 Virtanen
| Discovery [1] | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Observatory |
| Discovery date | 20 February 1938 |
| Designations | |
| MPC designation | 1449 Virtanen |
|
Named after
|
Artturi Virtanen (biochemist)[2] |
| 1938 DO · 1928 DC | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 27 June 2015 (JD 2457200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.64 yr (32,012 days) |
| Aphelion | 2.5374 AU |
| Perihelion | 1.9081 AU |
| 2.2227 AU | |
| Eccentricity | 0.1415 |
| 3.31 yr (1,210 days) | |
| 51.082° | |
| Inclination | 6.6410° |
| 110.79° | |
| 132.17° | |
| Physical characteristics | |
| Dimensions | 9.947±0.092 km[4] 9.46±0.33 km[5] 10.80 km (calculated)[3] |
| 30.495 h[6] 30.52±0.01 h[7] 30.5±0.5 h[7] 30.5421±0.3727 h[8] 14.770±0.440 h[9] |
|
| 0.2856±0.0274[4] 0.285±0.038[5] 0.24 (assumed)[3] |
|
| Tholen = S S [3] |
|
| 12.1 | |
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1449 Virtanen, provisional designation 1938 DO, is a stony asteroid from the inner regions of the asteroid belt, about 10 kilometers in diameter. It was discovered by Finnish astronomer Yrjö Väisälä at Turku Observatory on 20 February 1938.[10]
The asteroid is a member of the Flora family, a large group of rocky S-type asteroids in the inner main-belt. It orbits the Sun at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,210 days). Its orbit shows an eccentricity of 0.14 and is tilted by 7 degrees to the plane of the ecliptic. It has an albedo of 0.28, based on observations by the Wide-field Infrared Survey Explorer.[4][5]
Photometric observations during 2008 showed a rotation period of 30.459 ± 0.005 hours and a brightness variation of 0.60 ± 0.02 in magnitude.[6]
The asteroid was named after famous Finnish biochemist Artturi Virtanen (1895–1973), recipient of the 1945 Nobel Prize in Chemistry and president of the Academy of Finland for many years.[2]
References
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<references />, or <references group="..." />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
- 1449 Virtanen at the JPL Small-Body Database
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