Discovery[1] | |
---|---|
Discovered by | Y. Väisälä |
Discovery site | Turku Obs. |
Discovery date | 6 September 1940 |
Designations | |
(1677) Tycho Brahe | |
Named after | Tycho Brahe[2] (Danish astronomer) |
1940 RO · 1928 SP 1935 FL · 1952 QN1 1952 SD1 · A916 UA | |
main-belt[1][3] · (middle) Maria[4] · Eunomia[5] | |
Orbital characteristics[3] | |
Epoch 23 March 2018 (JD 2458200.5) | |
Uncertainty parameter 0 | |
Observation arc | 82.92 yr (30,285 d) |
Aphelion | 2.8037 AU |
Perihelion | 2.2607 AU |
2.5322 AU | |
Eccentricity | 0.1072 |
4.03 yr (1,472 d) | |
130.28° | |
0° 14m 40.56s / day | |
Inclination | 14.853° |
337.91° | |
318.29° | |
Physical characteristics | |
8.90±0.72 km[6] 11.686±0.116 km[7] 11.784±0.093 km[8] 13.26 km (calculated)[5] | |
3.89±0.06 h[9] | |
0.21 (assumed)[5] 0.221±0.031[8] 0.2277±0.0388[7] 0.466±0.090[6] | |
S[5][10][a] | |
11.70[3][5][6] 11.9[7] 12.21±0.04[10] | |
1677 Tycho Brahe, provisional designation 1940 RO, is a stony Marian asteroid from the central region of the asteroid belt, approximately 12 kilometers (7.5 miles) in diameter. It was discovered on 6 September 1940, by Finnish astronomer Yrjö Väisälä at Turku Observatory in Southwest Finland.[1] The common stony S-type asteroid has a short rotation period of 3.89 hours.[5] It was later named after Tycho Brahe, one of the fathers of astronomy.[2]
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