1724 Vladimir, provisional designation1932 DC, is a rare-typeasteroid from the central region of theasteroid belt, approximately 35 kilometers in diameter. It was discovered on 28 February 1932, by Belgian astronomerEugène Delporte at theRoyal Observatory of Belgium in Uccle, Belgium.[16] The asteroid was later named by astronomerMilorad Protić after his grandson, Vladimir.[2]
Vladimir orbits the Sun in thecentral main-belt at a distance of 2.6–2.9 AU once every 4 years and 6 months (1,632 days). Its orbit has aneccentricity of 0.06 and aninclination of 12° with respect to theecliptic.[1] The body'sobservation arc begins with its official discovery observation at Uccle in 1928.[16]
Two rotational lightcurve ofVladimir were obtained by Serbian astronomer Vladimir Benishek at theBelgrade Observatory in April 2008, and August 2015. Analysis of the bimodal lightcurve gave arotation period of 12.57 and 12.582hours with a relatively low brightness variation of 0.14 and 0.24magnitude, respectively (U=2/2+).[14][a]
In December 2010, and January 2012, photometric observations in the R-band at thePalomar Transient Factory in California gave a period of 12.574 and 12.557 hours with an amplitude of 0.23 and 0.22, respectively (U=2/2).[13]
According to the surveys carried out by the JapaneseAkari satellite and NASA'sWide-field Infrared Survey Explorer with its subsequentNEOWISE mission,Vladimir measures between 28.40 and 42.505 kilometers in diameter, and its surface has a lowalbedo between 0.0295 and 0.037.[4][5][6][9][10][11]
TheCollaborative Asteroid Lightcurve Link adopts the results obtained by the Infrared Astronomical SatelliteIRAS, that is, an albedo of 0.0441 and a diameter of 34.79 kilometers with anabsolute magnitude of 11.30.[3][7]
Thisminor planet was named by Serbian astronomerMilorad Protić, who rediscovered the body in 1952, and made its permanent numbering possible (also seeLost minor planet). Protić named it after his grandson,Vladimir.[2] The official naming citation was published by theMinor Planet Center on 1 April 1980 (M.P.C. 5281).[17]
