Discovery[1] | |
---|---|
Discovered by | K. Reinmuth |
Discovery site | Heidelberg Obs. |
Discovery date | 25 January 1933 |
Designations | |
(1251) Hedera | |
Pronunciation | /ˈhɛdərə/[2] |
Named after | Hedera (a.k.a. "Ivy")[3] |
1933 BE · 1929 CD1 1931 TJ2 · 1975 NW1 A907 GD · A915 CA | |
main-belt[1][4] · (middle) background[5] | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 102.80 yr (37,548 days) |
Aphelion | 3.1452 AU |
Perihelion | 2.2884 AU |
2.7168 AU | |
Eccentricity | 0.1577 |
4.48 yr (1,636 days) | |
55.862° | |
0° 13m 12.36s / day | |
Inclination | 6.0489° |
140.65° | |
217.52° | |
Physical characteristics | |
13.239±0.150 km[6][7] 44.22 km (calculated)[4] | |
15.015±0.010 h[8] 19.9000±0.0002 h[9] 19.9020±0.0001 h[10] 19.9020±0.0002 h[11] 19.915±0.005 h[12] 19.915±0.007 h[12] 19.985±0.002 h[13] | |
0.057 (assumed)[4] 0.636±0.050[6][7] | |
Tholen = E[1] SMASS = X[1] E[7][14] · C(SDSS-MFB)[4] B–V = 0.689[1] U–B = 0.233[1] | |
10.5[1][4][7] · 10.67±0.28[15] | |
1251 Hedera (prov. designation: 1933 BE) is a background asteroid from the central regions of the asteroid belt, approximately 13 kilometers (8 miles) in diameter. It was discovered on 25 January 1933, by German astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany.[16] The asteroid was named for the climbing plant Hedera, commonly known as "ivy".[3]
jpldata
was invoked but never defined (see the help page).springer
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