Astronomy:242 Kriemhild
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Short description: Main belt asteroid
.png) A three-dimensional model of 242 Kriemhild based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 22 September 1884 |
| Designations | |
| (242) Kriemhild | |
| Pronunciation | German: [ˈkʁiːmhɪlt] |
| Named after | Kriemhild |
| A884 SA | |
| Minor planet category | Main belt |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 131.23 yr (47931 d) |
| |{{{apsis}}}|helion}} | 3.2036 astronomical unit|AU (479.25 Gm) |
| |{{{apsis}}}|helion}} | 2.52045 AU (377.054 Gm) |
| 2.86202 AU (428.152 Gm) | |
| Eccentricity | 0.11935 |
| Orbital period | 4.84 yr (1768.5 d) |
| Average Orbital speed | 17.6 km/s |
| Mean anomaly | 351.010° |
| Mean motion | 0° 12m 12.823s / day |
| Inclination | 11.351° |
| Longitude of ascending node | 206.940° |
| 279.764° | |
| Physical characteristics | |
| Dimensions | 38.90±2.1 km |
| Rotation period | 4.5478 h (0.18949 d) |
| Geometric albedo | 0.2440±0.029 |
| Absolute magnitude (H) | 9.3 |
Kriemhild (minor planet designation: 242 Kriemhild) is a main belt asteroid that was discovered by Austrian astronomer Johann Palisa on 22 September 1884 in Vienna[2] and was named after Kriemhild, a mythological Germanic princess, by Moriz von Kuffner, a Viennese industrialist and sponsor of astronomy.
Photometric observations of this asteroid at the Oakley Observatory in Terre Haute, Indiana, during 2006 gave a light curve with a period of 4.558 ± 0.003 hours and a brightness variation of 0.15 ± 0.02 in magnitude.[3]
References
- ↑ Yeomans, Donald K., "242 Kriemhild", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=242, retrieved 12 May 2016.
- ↑ "Numbered Minor Planets 1–5000", Discovery Circumstances (IAU Minor Planet center), https://www.minorplanetcenter.net/iau/lists/NumberedMPs000001.html, retrieved 2013-04-07.
- ↑ Ditteon, Richard; Hawkins, Scot (September 2007), "Asteroid Lightcurve Analysis at the Oakley Observatory - October-November 2006", The Minor Planet Bulletin 34 (3): pp. 59–64, Bibcode: 2007MPBu...34...59D.
External links
- Lightcurve plot of 242 Kriemhild, Palmer Divide Observatory, B. D. Warner (2004)
- Asteroid Lightcurve Database (LCDB), query form (info )
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 242 Kriemhild at AstDyS-2, Asteroids—Dynamic Site
- 242 Kriemhild at the JPL Small-Body Database
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