813 Baumeia

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813 Baumeia (prov. designation: Template:Mp or Template:Mp) is a stony background asteroid from the inner regions of the asteroid belt. It was discovered on 28 November 1915, by German astronomer Max Wolf at the Heidelberg Observatory in southwest Germany.[1] The common S-type asteroid has a rotation period of 10.5 hours and measures approximately Script error: No such module "convert". in diameter. It was named for H. Baum, a German student of astronomy at Heidelberg who was killed in World War I.[2]

Orbit and classification

Baumeia is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[3][4][5] It orbits the Sun in the inner main-belt at a distance of 2.2–2.3 AU once every 3 years and 4 months (1,211 days; semi-major axis of 2.22 AU). Its orbit has an eccentricity of 0.03 and an inclination of 6° with respect to the ecliptic.[6] The body's observation arc begins with its first observation as Template:Mp at Heidelberg on 4 April 1907, more than 8 years prior to its official discovery observation.[1]

Naming

This minor planet was named im memory of H. Baum, a German astronomy student at Heidelberg University who was in World War I. The naming was published in the journal Astronomische Nachrichten in 1921 (AN 214, 69). The Template:MoMP was also mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 81Script error: No such module "Check for unknown parameters".).[2]

Physical characteristics

Baumeia is a common, stony S-type asteroid in both the SMASS-I taxonomy by Xu (1995),[4] as well as in the taxonomic classification based on MOVIS near-infrared colors from the catalog of the VISTA Hemisphere Survey conducted with the VISTA telescope at Paranal Observatory in Chile.[7]

Rotation period

In January 2019, a rotational lightcurve of Baumeia was obtained from photometric observations by European astronomers Bruno Christmann, Raoul Behrend, Anaël Wünsche, Marc Bretton, Rui Goncalves, Josep Bosch. Lightcurve analysis gave a well-defined rotation period of Script error: No such module "val". hours with a brightness variation of Script error: No such module "val". magnitude (U=3Script error: No such module "Check for unknown parameters".).[8]

The result confirms and refines previous observations by French amateur astronomer René Roy in February 2003, which gave a period of Script error: No such module "val". hours with an amplitude of Script error: No such module "val". magnitude (U=1Script error: No such module "Check for unknown parameters".),[8] by Jean-Gabriel Bosch at the French Collonges Observatory Template:Obscode in February 2006, which gave an identical period of Script error: No such module "val". hours with an amplitude of Script error: No such module "val". magnitude (U=1Script error: No such module "Check for unknown parameters".),[8] by James W. Brinsfield at the Via Capote Observatory Template:Obscode in Australia in November 2008, which gave the first secured period of Script error: No such module "val". hours with an amplitude of Script error: No such module "val". magnitude (U=3−Script error: No such module "Check for unknown parameters".).[9]

Diameter and albedo

According to the surveys carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer (WISE) and the Infrared Astronomical Satellite IRAS, Baumeia measures (Script error: No such module "val".) and (Script error: No such module "val".) kilometers in diameter and its surface has an albedo of (Script error: No such module "val".) and (Script error: No such module "val".), respectively.[10][11] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.2396 and a diameter of 13.61 kilometers based on an absolute magnitude of 11.5.[12] Alternative mean diameter measurements published by the WISE team include (Script error: No such module "val".) and (Script error: No such module "val".) with corresponding albedos of (Script error: No such module "val".) and (Script error: No such module "val".).[4][12]

References

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  1. ↑ a b Script error: No such module "citation/CS1".
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  3. ↑ Script error: No such module "citation/CS1".
  4. ↑ a b c Script error: No such module "citation/CS1".
  5. ↑ Script error: No such module "Citation/CS1".} (PDS main page)
  6. ↑ Script error: No such module "citation/CS1".
  7. ↑ Script error: No such module "Citation/CS1". (VizieR online cat)
  8. ↑ a b c Script error: No such module "citation/CS1".
  9. ↑ Script error: No such module "Citation/CS1".
  10. ↑ Script error: No such module "Citation/CS1".
  11. ↑ Script error: No such module "Citation/CS1".
  12. ↑ a b Script error: No such module "citation/CS1".

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External links

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