5040 Rabinowitz
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5040 Rabinowitz, provisional designation Template:Mp, is a stony Phocaea asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered by Dutch–American astronomer Tom Gehrels at Palomar Observatory on 15 September 1972.[1] Contrary to most of his discoveries, this asteroid is unrelated to the Palomar–Leiden survey and exclusively credited to Tom Gehrels.
Orbit and classification
The stony S-type asteroid is a member of the Phocaea family (701Script error: No such module "Check for unknown parameters".), a group of asteroids with similar orbital characteristics, named after its largest member, 25 Phocaea.[2] It orbits the Sun in the inner main-belt at a distance of 1.9–3.0 AU once every 3 years and 9 months (1,373 days). Its orbit has an eccentricity of 0.23 and an inclination of 24° with respect to the ecliptic.[3] A first precovery was taken at the discovering observatory in 1971, extending the body's observation arc by one year prior to its official discovery observation.[1]
Physical characteristics
Rotation period
In July 2013, a rotational lightcurve for this asteroid was obtained from photometric observations by Czech astronomer Petr Pravec at the Ondřejov Observatory. The well-defined lightcurve gave a rotation period of Script error: No such module "val". hours with a brightness variation of 0.33 in magnitude (U=3Script error: No such module "Check for unknown parameters".).Template:Efn
During the same opposition opportunity, two more lightcurves – obtained by Robert Stephens at the Center for Solar System Studies and by Maurice Clark at the Preston Gott Observatory – gave a similar period of Script error: No such module "val". and Script error: No such module "val". hours, with an amplitude of 0.35 and 0.31 in magnitude, respectively (U=3-/2+Script error: No such module "Check for unknown parameters".).[4][5]
Diameter and albedo
The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23, derived from the Phocaea family's namesake, and calculates a diameter of 6.4 kilometers with an absolute magnitude of 13.18.[6]
Naming
This minor planet was named after American astronomer David Rabinowitz (born 1960), a discoverer of minor planets himself and researcher at Yale University. The naming also honors his work for the Spacewatch program.[7] The official naming citation was published by the Minor Planet Center on 1 September 1993 (M.P.C. 22505Script error: No such module "Check for unknown parameters".).[8]
Notes
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 (5001)-(10000) – Minor Planet Center
- Template:AstDys
- Template:PAGENAMEBASE at the JPL Small-Body DatabaseTemplate:EditAtWikidata
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