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798 Ruth is a minor planet orbiting the Sun that was discovered by the German astronomer Max Wolf on 21 November 1914. It may have been named after the biblical character Ruth. This main belt asteroid has an orbital period of 5.23 years and is orbiting at a distance of 3.0 AU from the Sun with an eccentricity (ovalness) of 0.036. The orbital plane is tilted by 9.2° from the plane of the ecliptic.

This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body. It is an M-type (metallic) asteroid that displays a significant component of the mineral olivine in its spectrum. 798 Ruth spans 43.19±2.9 km and rotates on its axis once every 8.55 h.

References

1. Noah Webster (1884) A Practical Dictionary of the English Language
2. ^ Yeomans, Donald K., "798 Ruth", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, archived from the original on 15 August 2014, retrieved 4 May 2016.
3. ^ Sanchez, Juan A.; et al. (January 2014), "Olivine-dominated asteroids: Mineralogy and origin", Icarus, 228: 288–300, arXiv:1310.1080, Bibcode:2014Icar..228..288S, doi:10.1016/j.icarus.2013.10.006.
4. Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, p. 73, ISBN 9783642297182.
5. Veeder, G. J.; et al. (March 1995), "Eos, Koronis, and Maria family asteroids: Infrared (JHK) photometry" (PDF), Icarus, 114: 186–196, Bibcode:1995Icar..114..186V, CiteSeerX 10.1.1.31.2739, doi:10.1006/icar.1995.1053.

External links

• 798 Ruth at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 798 Ruth at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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• Minor planet object articles (numbered)
• Eos asteroids
• Discoveries by Max Wolf
• Named minor planets
• M-type asteroids (Tholen)
• Astronomical objects discovered in 1914
• Main-belt-asteroid stubs