Discovery | |
---|---|
Discovered by | Robert Luther |
Discovery date | 12 September 1884 |
Designations | |
(241) Germania | |
Pronunciation | /dʒərˈmeɪniə/ [1] |
Named after | Germany |
A884 RA, 1953 US, 1953 VK1 | |
Main belt | |
Adjectives | Germanian |
Orbital characteristics [2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 131.40 yr (47993 d) |
Aphelion | 3.35991 AU (502.635 Gm) |
Perihelion | 2.73723 AU (409.484 Gm) |
3.04857 AU (456.060 Gm) | |
Eccentricity | 0.10213 |
5.32 yr (1944.2 d) | |
Average orbital speed | 17.04 km/s |
277.959° | |
0° 11m 6.598s / day | |
Inclination | 5.50482° |
270.362° | |
80.6364° | |
Physical characteristics | |
Dimensions | 168.90±3.1 km [2] 178.60 ± 7.84 km [3] |
Mass | (0.86 ± 5.00) × 1018 kg [3] |
Mean density | 0.28 ± 1.67 g/cm3 [3] |
15.51 h (0.646 d) [2] | |
0.0575±0.002 [2] | |
CP/B [2] | |
7.58 [2] | |
Germania (minor planet designation: 241 Germania) is a very large main-belt asteroid. It is classified as a B-type asteroid and is probably composed of dark, primitive carbonaceous material.
It was discovered by Robert Luther on 12 September 1884 in Düsseldorf.
Victoria is a large main-belt asteroid, orbiting the Sun with a period of 3.56 years and an eccentricity of 0.221. It is a stony (S-type) asteroid, about 112–124 km across with an albedo of 0.18 and a rotation period of 8.66 hours. Victoria has been observed to occult a star three times since its discovery. Radar and speckle interferometry observations show that the shape of Victoria is elongated, and it is suspected to be a binary asteroid, with a moon of irregular shape.
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Tekmessa is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on February 16, 1906. The name may have been inspired by the asteroid's provisional designation 1906 TK.
690 Wratislavia is a minor planet orbiting the Sun. Wratislavia was discovered on October 16, 1909. IRAS data shows it is about 135 km in diameter.
860 Ursina is a minor planet orbiting the Sun that was discovered in 1917 by German astronomer Max Wolf. The origin of the name is unknown.