1449 Virtanen

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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

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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External links


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