674 Rachele
674 Rachele is a minor planet orbiting the Sun. It was discovered by Wilhelm Lorenz on 28 October 1908 in Heidelberg, and was named by orbit computer Emilio Bianchi after his wife.[4] This is classified as an S-type asteroid,[5] indicating a stony composition.
Measurements made using the adaptive optics system at the W. M. Keck Observatory give a size estimate of 89 km. It has a size ratio of 1.08 between the major and minor axes. By comparison, measurements reported in 1998 from the IRAS observatory give a similar size of 97 km and a ratio of 1.15.[6]
References
- ^ "(DOP)". Archived from the original on 21 June 2013. Retrieved 18 March 2020.
- ^ a b "674 Rachele (1908 EP)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 7 May 2016.
- ^ a b c 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.
- ^ Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 65, ISBN 978-3642297182.
- ^ Piironen, J.; et al. (March 1998), "Physical studies of asteroids. XXXII. Rotation periods and UBVRI-colours for selected asteroids", Astronomy and Astrophysics Supplement, 128 (3): 525–540, Bibcode:1998A&AS..128..525P, doi:10.1051/aas:1998393.
- ^ Marchis, F.; et al. (November 2006), "Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey", Icarus, 185 (1): 39–63, Bibcode:2006Icar..185...39M, doi:10.1016/j.icarus.2006.06.001, PMC 2600456, PMID 19081813.
External links
- 674 Rachele at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 674 Rachele at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
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- 673 Edda
- 674 Rachele
- 675 Ludmilla
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