Astronomy:241 Germania
From HandWiki
 Orbital diagram | |
| 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 | |
| Minor planet category | Main belt |
| Adjectives | Germanian |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 131.40 yr (47993 d) |
| |{{{apsis}}}|helion}} | 3.35991 astronomical unit|AU (502.635 Gm) |
| |{{{apsis}}}|helion}} | 2.73723 AU (409.484 Gm) |
| 3.04857 AU (456.060 Gm) | |
| Eccentricity | 0.10213 |
| Orbital period | 5.32 yr (1944.2 d) |
| Average Orbital speed | 17.04 km/s |
| Mean anomaly | 277.959° |
| Mean motion | 0° 11m 6.598s / day |
| Inclination | 5.50482° |
| Longitude of ascending node | 270.362° |
| 80.6364° | |
| Physical characteristics | |
| Dimensions | 168.90±3.1 km[2] 181.55±6.81 km[3] |
| Mass | (7.386 ± 2.511/2.119)×1018 kg[3] |
| Mean density | 2.357 ± 0.801/0.676 g/cm3[3] |
| Rotation period | 15.51 h (0.646 d)[2] |
| Geometric albedo | 0.0575±0.002[2] |
| CP/B[2] | |
| Absolute magnitude (H) | 7.81[2] |
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.
Germania is the Latin name for Germany.
References
- ↑ Noah Webster (1884) A Practical Dictionary of the English Language
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "JPL Small-Body Database Browser: 241 Germania". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=241.
- ↑ 3.0 3.1 3.2 Fienga, A.; Avdellidou, C.; Hanuš, J. (February 2020). "Asteroid masses obtained with INPOP planetary ephemerides". Monthly Notices of the Royal Astronomical Society 492 (1): 589–602. doi:10.1093/mnras/stz3407. https://academic.oup.com/mnras/article/492/1/589/5658701.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 241 Germania at AstDyS-2, Asteroids—Dynamic Site
- 241 Germania at the JPL Small-Body Database
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