1696 Nurmela
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1696 Nurmela, provisional designation 1939 FF, is a Baptistina asteroid from the inner regions of the asteroid belt, approximately 10 kilometers (6 miles) in diameter. It was discovered on 18 March 1939, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland, and named after Finnish academician Tauno Nurmela.[2][1] The possibly elongated asteroid has a rotation period of 3.15 hours.[4]
Quick Facts Discovery, Discovered by ...
Discovery[1] | |
---|---|
Discovered by | Y. Väisälä |
Discovery site | Turku Obs. |
Discovery date | 18 March 1939 |
Designations | |
(1696) Nurmela | |
Named after | Tauno Nurmela (University of Turku)[2] |
1939 FF · 1939 GL 1949 DK · 1951 YK | |
main-belt[1][3] · inner Baptistina[4][5] · Flora[6] | |
Orbital characteristics[3] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 78.30 yr (28,598 d) |
Aphelion | 2.4842 AU |
Perihelion | 2.0391 AU |
2.2616 AU | |
Eccentricity | 0.0984 |
3.40 yr (1,242 d) | |
76.752° | |
0° 17m 23.28s / day | |
Inclination | 6.0374° |
21.035° | |
164.84° | |
Physical characteristics | |
Mean diameter | 6.06±1.18 km[7] 7.69±2.07 km[8] 9.232±0.181 km[9] 9.911±0.056 km[10] 10.31±0.44 km[11] 14.64 km (calculated)[4] |
3.1587±0.0001 h[12] 3.1587±0.0001 h[13] 3.159±0.001 h[14][lower-alpha 1] | |
0.057 (assumed)[4] 0.116±0.011[11] 0.1246±0.0166[10] 0.155±0.021[9] 0.18±0.13[8] 0.28±0.20[7] | |
C (assumed)[4] | |
12.90[3][4][7][10][11] 13.19[8] | |
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