1771 Makover

Main-belt asteroid October 2019 yes 1771 Makover #D6D6D6 24 January 1968 L. Chernykh Crimean Astrophysical Obs. (1771) Makover 1968 BD1937 LM1938 QJ1941 FH1950 XW1952 FU1958 HF1961 XV1966 UC Samuel Makover (astronomer) main-belt(outer) 4 September 2017 (JD 2458000.5) 0 78.58 yr (28,700 days) 3.6697 AU 2.5742 AU 3.1219 AU 0.1755 5.52 yr (2,015 days) 59.003° 0.1787 ms / day 11.249° 86.335° 316.67° 46.886 0.293 km51.202 0.294 km56.59 km (derived)63.59 19.06 km 11.26 0.01 h 0.025 0.0190.0382 (derived)0.0614 0.00970.072 0.008 C 10.110.410.5910.60 0.27 1771 Makover, provisional designation 1968 BD, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 50 kilometers in diameter. It was discovered on 24 January 1968, by Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj on the Crimean peninsula. It was named after Russian astronomer Samuel Makover. Orbit and classification The dark C-type asteroid orbits the Sun in the outer main-belt at a distance of 2.6–3.7 AU once every 5 years and 6 months (2,015 days). Its orbit has an eccentricity of 0.18 and an inclination of 11° with respect to the ecliptic. At Johannesburg Observatory, Makover was first identified as 1937 LM in 1937. Its first used observation was made at the same observatory one year later, when it was identified as 1938 QJ, extending the body's observation arc by 30 years prior to its official discovery observation. Physical characteristics In December 2011, a rotational lightcurve of Makover was obtained by astronomer Andrea Ferrero from photometric observation. It gave a well-defined rotation period of 11.26 hours with a brightness variation of 0.25 magnitude (U=3). According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Makover measures between 46.89 and 63.59 kilometers in diameter, and its surface has an albedo between 0.025 and 0.072. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0382 and a diameter of 56.59 kilometers with an absolute magnitude of 10.4. Naming This minor planet was named in honor of Russian astronomer Samuel Gdalevich Makover (1908–1970), who studied extensively the orbit of Encke's Comet (referred to as Comet Encke-Backlund in Russia), and pioneered in the use of electronic calculators for computing planetary perturbations and orbit improvements. He was head of the Institute of Theoretical Astrophysics's (ITA) department of minor planets and comets, and editor of the annual volume of Minor Planet Ephemerides. He was also a vice-president of IAU's commission 20, Positions & Motions of Minor Planets, Comets & Satellites, in the 1960s. The official 1771 naming citation was published by the Minor Planet Center on 25 September 1971 (M.P.C. 3185). References 2017-03-29 last obs. JPL Small-Body Database Browser: 1771 Makover (1968 BD) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001771 Jet Propulsion Laboratory 1 July 2017 Dictionary of Minor Planet Names – (1771) Makover Schmadel Lutz D. Springer Berlin Heidelberg 141 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1772 (1771) Makover 1771 Makover (1968 BD) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1771 20 December 2016 Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008) Appendix – Publication Dates of the MPCs Schmadel Lutz D. Springer Berlin Heidelberg 221 978-3-642-01964-7 10.1007/978-3-642-01965-4 1771 20 December 2016 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. Cabrera November 2012 Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 20 December 2016 6 A. Mainzer T. Grav J. Masiero E. Hand J. Bauer D. Tholen R. S. McMillan T. Spahr R. M. Cutri E. Wright J. Watkins W. Mo C. Maleszewski November 2011 NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results The Astrophysical Journal 741 2 25 2011ApJ...741...90M 10.1088/0004-637X/741/2/90 1109.6407 Ferrero, Andrea April 2012 Lightcurve Determination at the Bigmuskie Observatory from 2011 July–December https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012MPBu...39...65F The Minor Planet Bulletin 39 2 65–67 1052-8091 2012MPBu...39...65F 20 December 2016 6 Peter Veres Robert Jedicke Alan Fitzsimmons Larry Denneau Mikael Granvik Bryce Bolin Serge Chastel Richard J. Wainscoat William S. Burgett Kenneth C. Chambers Heather Flewelling Nick Kaiser Eugen A. Magnier Jeff S. Morgan Paul A. Price John L. Tonry Christopher Waters November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 20 December 2016 6 Joseph R. Masiero T. Grav A. K. Mainzer C. R. Nugent J. M. Bauer R. Stevenson S. Sonnett August 2014 Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos https://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 20 December 2016 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Dictionary of Minor Planet Names, Google books Asteroids and comets rotation curves, CdR https://web.archive.org/web/20241208174218/http://obswww.unige.ch/~behrend/page_cou.html 8 December 2024 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1771 1770 Schlesinger 1771 1772 Gagarin 001771 Category:Discoveries by Lyudmila Chernykh Category:Named minor planets 19680124