1704 Wachmann
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1704 Wachmann, provisional designation Template:Mp, is a stony asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 7 March 1924. It was later named after astronomer Arno Wachmann.[1][2]
Classification and orbit
The S-type asteroid orbits the Sun in the inner main-belt at a distance of 2.0–2.4 AU once every 3 years and 4 months (1,210 days). Its orbit has an eccentricity of 0.09 and an inclination of 1° with respect to the ecliptic.[3] No precoveries were taken. The asteroid's observation arc begins 3 days after its official discovery observation.[2]
Physical characteristics
Lightcurves
In April 2007, a rotational lightcurve Wachmann was obtained at the U.S. Sandia View Observatory in New Mexico (H03Script error: No such module "Check for unknown parameters".). Lightcurve analysis gave a well-defined rotation period of Script error: No such module "val". hours with a brightness variation of 0.40 magnitude (U=3Script error: No such module "Check for unknown parameters".).[4]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Wachmann measures 6.6 and 6.9 kilometers in diameter, and its surface has an albedo of 0.177 and 0.193, respectively,[5][6] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 7.8 kilometers, based on an absolute magnitude of 12.9.[7]
Naming
This minor planet was named for Arno Wachmann (1902–1990), long-time astronomer at the Bergedorf Observatory in Hamburg, discoverer of minor planets and comets, and observer of variable and binary stars. He is best known for the co-discovery of the three "Schwassmann–Wachmann" comets, 29P, 31P and 73P.[1] The official Template:MoMP was published by the Minor Planet Center on 20 February 1976 (M.P.C. 3933Script error: No such module "Check for unknown parameters".).[8]
References
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External links
- Asteroid Lightcurve Database (LCDB), query form (info Template:Webarchive)
- 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
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
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