778 Theobalda
778 Theobalda is a minor planet orbiting the Sun, in the main asteroid belt. It was discovered by Franz Kaiser on 25 January 1914 and was named after his father, Theobald Kaiser.[2] This is an F-type asteroid[3] that spans ~64 km in girth. It rotates on its axis once every 11.7 hours. 778 Theobalda is orbiting 3.19 AU from the Sun with an eccentricity (ovalness) of 0.25 and a period of 5.69 yr. The orbital plane is inclined at an angle of 13.7° to the plane of the ecliptic.[1]
778 Theobalda is the namesake and largest member of a family of 128 minor planets in the outer belt. The Theobalda asteroid family was likely formed 6.9±2.3 million years ago from a collision-shattered parent body that had a diameter of around 78±9 km.[4]
References
- ^ a b "778 Theobalda (1914 UA)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
- ^ Schmadel, Lutz D. (2013), Dictionary of Minor Planet Names, Springer Berlin Heidelberg, p. 118, ISBN 9783662028049.
- ^ Gladman, B. J.; et al. (May 2010), "Sub-Kilometer Asteroid Diameter Survey (SKADS) V1.0", NASA Planetary Data System, Bibcode:2010PDSS..118.....G, EAR-A-I0655-5-SKADS-V1.0.
- ^ Novaković, Bojan (September 2010), "Portrait of Theobalda as a young asteroid family", Monthly Notices of the Royal Astronomical Society, 407 (3): 1477–1486, arXiv:1005.3574, Bibcode:2010MNRAS.407.1477N, doi:10.1111/j.1365-2966.2010.17051.x.
External links
- 778 Theobalda at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 778 Theobalda at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
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- 777 Gutemberga
- 778 Theobalda
- 779 Nina
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