.png) A three-dimensional model of 242 Kriemhild based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 22 September 1884 |
| Designations | |
| MPC designation | (242) Kriemhild |
| Pronunciation | German: [ˈkʁiːmhɪlt] |
| Named after | Kriemhild |
| Alternative designations | A884 SA |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 131.23 yr (47931 d) |
| Aphelion | 3.2036 AU (479.25 Gm) |
| Perihelion | 2.52045 AU (377.054 Gm) |
| Semi-major axis | 2.86202 AU (428.152 Gm) |
| Eccentricity | 0.11935 |
| Orbital period (sidereal) | 4.84 yr (1768.5 d) |
| Average orbital speed | 17.6 km/s |
| Mean anomaly | 351.010° |
| Mean motion | 0° 12 12.823 / day |
| Inclination | 11.351° |
| Longitude of ascending node | 206.940° |
| Argument of perihelion | 279.764° |
| Physical characteristics | |
| Dimensions | 38.90±2.1 km |
| Synodic rotation period | 4.5478 h (0.18949 d) |
| Geometric albedo | 0.2440±0.029 |
| Absolute magnitude (H) | 9.3 |
242 Kriemhild is a main belt asteroid that was discovered by Austrian astronomer Johann Palisa on 22 September 1884 in Vienna 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.
References
- Yeomans, Donald K., "242 Kriemhild", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
- Ditteon, Richard; Hawkins, Scot (September 2007), "Asteroid Lightcurve Analysis at the Oakley Observatory - October-November 2006", The Minor Planet Bulletin, vol. 34, no. 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 Archived 16 December 2017 at the Wayback Machine)
- 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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