1252 Celestia

Main-belt asteroid December 2018 yes 1252 Celestia #D6D6D6 F. L. Whipple Oak Ridge Obs. 19 February 1933 (1252) Celestia 1933 DG1934 PA 1 Celestia Whipple(discoverer's mother) main-belt(middle)Pallasbackground 27 April 2019 (JD 2458600.5) 0 85.57 yr (31,254 d) 3.2535 AU 2.1350 AU 2.6943 AU 0.2076 4.42 yr (1,615 d) 137.14° 0.2229 ms / day 33.839° 140.91° 63.589° 17.39 1.6 km19.037 0.304 km20.36 0.69 km21.542 0.155 km21.56 0.95 km 10.636 h 0.1670.17140.1930.2150.2573 Tholen SSMASS SB–V 0.890U–B 0.425 10.89 1252 Celestia, provisional designation 1933 DG, is a stony asteroid located in the central asteroid belt. It was discovered on 19 February 1933, by astronomer Fred Whipple at the Oak Ridge Observatory operated by the Harvard-Smithsonian Center for Astrophysics in Massachusetts, United States. The S-type asteroid has a rotation period of 10.6 hours and measures approximately 20 km mi off 2 us in diameter. It was named after the discoverer's mother, Celestia MacFarland Whipple. Orbit and classification According to a synthetic HCM-analysis by Nesvorný, Celestia is a member of the Pallas family (801), a small asteroid family of less than 200 known members with inclined orbits. The family is named after 2 Pallas. However, in a HCM-analysis by Milani and Knežević, Celestia belongs to the background population. The asteroid orbits the Sun in the central main-belt at a distance of 2.1–3.3 AU once every 4 years and 5 months (1,615 days; semi-major axis of 2.69 AU). Its orbit has an eccentricity of 0.21 and an inclination of 34° with respect to the ecliptic. The body's observation arc begins at the Yerkes Observatory in April 1933, or two months after its official discovery observation at Oak Ridge. Naming This minor planet was named after the mother of the discoverer, Celestia MacFarland Whipple. The official 1252 naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 115). Physical characteristics In the Tholen and SMASS classification, Celestia is a common stony S-type asteroid, while in SMASS-like taxonomy of the Small Solar System Objects Spectroscopic Survey (S3OS2), it is a Sl-subtype that transitions from the S-type to the L-type asteroids. Celestia stony spectral type does not agree with those determined for the members of the Pallas family, which are typically "bright" carbonaceous B-type asteroids.23 Rotation period In February and March 1995, a rotational lightcurve of Celestia was obtained from photometric observations at the Paul Feder Observatory by Walter Worman of Moorhead State University. Lightcurve analysis gave a rotation period of 10.636 hours with a brightness amplitude of 0.26 magnitude (U=3). An alternative period determination by René Roy of 12 hours was based on a fragmentary lightcurve and received a poor rating (U=1). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Celestia measures between 17.39 and 21.56 kilometers in diameter and its surface has an albedo between 0.167 and 0.2573. The Collaborative Asteroid Lightcurve Link adopts the results obtained by IRAS, that is, an albedo of 0.2573 and a diameter of 17.39 kilometers based on an absolute magnitude of 10.89. References 30em 2018-10-22 last obs. JPL Small-Body Database Browser: 1252 Celestia (1933 DG) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001252 Jet Propulsion Laboratory 14 December 2018 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 104 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1253 (1252) Celestia 1252 Celestia (1933 DG) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1252 14 December 2018 Asteroids and comets rotation curves – (1252) Celestia Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page3cou.html#001252 14 December 2018 23 April 2019 https://web.archive.org/web/20190423121547/http://obswww.unige.ch/~behrend/page3cou.html#001252 dead 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 The Astrophysical Journal 791 2 11 2014ApJ...791..121M 10.1088/0004-637X/791/2/121 1406.6645 119293330 Asteroid (1252) Celestia – Proper elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=1252&pc=1.1.6 25 May 2018 Asteroid 1252 Celestia Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1252+Celestia 14 December 2018 October 2026 InternetArchiveBot D. Nesvorný M. Broz V. Carruba December 2014 Identification and Dynamical Properties of Asteroid Families Asteroids IV 297–321 2015aste.book..297N 10.2458/azu_uapress_9780816532131-ch016 1502.01628 9780816532131 119280014 1252 14 December 2018 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 The Astrophysical Journal Letters 759 1 5 2012ApJ...759L...8M 10.1088/2041-8205/759/1/L8 1209.5794 46350317 6 A. K. Mainzer J. M. Bauer R. M. Cutri T. Grav E. A. Kramer J. R. Masiero C. R. Nugent S. M. Sonnett R. A. Stevenson E. L. Wright June 2016 NEOWISE Diameters and Albedos V1.0 https://sbnarchive.psi.edu/pds3/non_mission/EAR_A_COMPIL_5_NEOWISEDIAM_V1_0/data/neowise_mainbelt.tab NASA Planetary Data System EAR–A–COMPIL–5–NEOWISEDIAM–V1.0 2016PDSS..247.....M 14 December 2018 6 Fumihiko Usui Daisuke Kuroda Thomas G. Müller Sunao Hasegawa Masateru Ishiguro Takafumi Ootsubo Daisuke Ishihara Hirokazu Kataza Satoshi Takita Shinki Oyabu Munetaka Ueno Hideo Matsuhara Takashi Onaka October 2011 Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey Publications of the Astronomical Society of Japan 63 5 1117–1138 2011PASJ...63.1117U 10.1093/pasj/63.5.1117 (online, AcuA catalog p. 153) E. F. Tedesco P. V. Noah M. Noah S. D. Price October 2004 IRAS Minor Planet Survey V6.0 https://sbnarchive.psi.edu/pds3/iras/IRAS_A_FPA_3_RDR_IMPS_V6_0/data/diamalb.tab NASA Planetary Data System – IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS–A–FPA–3–RDR–IMPS–V6.0 2004PDSS...12.....T 14 December 2018 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 35447010 (catalog) Worman, W. E. December 1995 CCD Photometry of 1252 Celestia The Minor Planet Bulletin 22 39 1995MPBu...22...39W 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/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1252 1251 Hedera 1252 1253 Frisia 001252 Category:Named minor planets 001252 001252 19330219 Category:Discoveries by Fred Lawrence Whipple