1388 Aphrodite

Asteroid December 2018 yes 1388 Aphrodite #D6D6D6 001388-asteroid shape model (1388) Aphrodite.png Shape model of Aphrodite from its lightcurve E. Delporte Uccle Obs. 24 September 1935 (1388) Aphrodite 1935 SSA914 TC æ f r oʊ ˈ d aɪ t iːAphrodite Aphrodisian æ f r oʊ ˈ d ɪ z i ə naphrodisian Aphrodite(Greek goddess) main-belt(outer)Eos 27 April 2019 (JD 2458600.5) 0 83.08 yr (30,344 d) 3.2896 AU 2.7485 AU 3.0190 AU 0.0896 5.25 yr (1,916 d) 35.092° 0.1879 ms / day 11.192° 54.359° 257.03° 21.355 0.282 km21.636 0.079 km23.00 0.48 km23.17 0.55 km25.22 2.8 km 11.9432 0.0004 h 0.13170.1440.1520.18010.184 K (family-based)B–V 0.860U–B 0.490 10.8110.9 1388 Aphrodite (prov. designation: 1935 SS) is an asteroid of the Eos family from the outer regions of the asteroid belt, approximately 22 km mi off 2 us in diameter. It was discovered on 24 September 1935, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The likely elongated K-type asteroid has a rotation period of 11.9 hours. It was named after the Greek goddess Aphrodite from Greek mythology. Orbit and classification Aphrodite is a core member of the Eos family (606), the largest asteroid family in the outer main belt consisting of nearly 10,000 asteroids. It orbits the Sun at a distance of 2.7–3.3 AU once every 5 years and 3 months (1,916 days; semi-major axis of 3.02 AU). Its orbit has an eccentricity of 0.09 and an inclination of 11° with respect to the ecliptic. The body's observation arc begins at Johannesburg Observatory in September 1939, just four nights after its official discovery observation at Uccle. Naming This minor planet was named from Greek mythology after Aphrodite, the Greek goddess of love, beauty, and sexuality, and daughter of Zeus and the Titaness Dione. The asteroid's name was proposed by the German Astronomisches Rechen-Institut (RI 1702). The official 1388 naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 126). Physical characteristics While the asteroid's spectral type is unknown, Aphrodite, with a geometric albedo of around 0.15 (see asteroid-family list), is likely a K-type asteroid, which is typically associated with members of the Eos family. Rotation period and poles In May 2007, a rotational lightcurve of Aphrodite was obtained from photometric observations by Julian Oey at the Kingsgrove Observatory E19 in Australia in collaboration with other observatories. Lightcurve analysis gave a well-defined rotation period of 11.9432 0.0004 hours and a brightness variation of 0.65 magnitude (U=3), indicative for an elongated, non-spherical shape. Alternative period determinations by Alvaro Alvarez-Candal (9 h; Δ 0.4 mag) in 2004, René Roy (11.88 h; Δ 0.34 mag) in 2006, and Kevin Ivarsen (11.95 h; Δ 0.35 mag) in 2003, received a lower rating (U=2/2+/2). A modeled lightcurve using photometry obtained from public databases and through a large collaboration network as well as sparse-in-time individual measurements from a few sky surveys was published in 2016 and 2018. Most recent results gave a concurring sidereal period of 11.94389 0.00002 hours, as well as two spin axes at (325.0°, 35.0°) and (137.0°, 66.0°) in ecliptic coordinates (λ, β). 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, Aphrodite measures between 21.4 and 25.2 kilometers in diameter and its surface has an albedo between 0.13 and 0.18. The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1217 and a diameter of 25.17 kilometers based on an absolute magnitude of 10.9. References 30em 2018-10-22 last obs. JPL Small-Body Database Browser: 1388 Aphrodite (1935 SS) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001388 Jet Propulsion Laboratory 12 December 2018 Dictionary of Minor Planet Names https://archive.org/details/dictionaryminorp00schm limited Schmadel Lutz D. Springer Berlin Heidelberg (1388) Aphrodite 112 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1389 1388 Aphrodite (1935 SS) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1388 12 December 2018 Asteroids and comets rotation curves – (1388) Aphrodite Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001388 12 December 2018 3 August 2003 https://web.archive.org/web/20030803183423/http://obswww.unige.ch/~behrend/page4cou.html#001388 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 (1388) Aphrodite – Proper elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=1388&pc=1.1.6 11 December 2018 Asteroid 1388 Aphrodite Small Bodies Data Ferret https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1388+Aphrodite 12 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 1388 12 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 12 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 12 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) Alvaro Alvarez-Candal René Duffard Cláudia A. Angeli Daniela Lazzaro Silvia Fernández December 2004 Rotational lightcurves of asteroids belonging to families Icarus 172 2 388–401 2004Icar..172..388A 10.1016/j.icarus.2004.06.008 Kevin Ivarsen Sarah Willis Laura Ingleby Dan Matthews Melanie Simet June 2004 CCD observations and period determination of fifteen minor planets The Minor Planet Bulletin 31 2 29–33 1052-8091 2004MPBu...31...29I Julian Oey Ric Krajewski June 2008 Lightcurve Analysis of Asteroids from Kingsgrove and Other Collaborating Observatories in the First Half of 2007 The Minor Planet Bulletin 35 2 47–48 1052-8091 2008MPBu...35...47O 6 J. Hanus M. Delbo' V. Alí-Lagoa B. Bolin R. Jedicke J. Durech H. Cibulková P. Pravec P. Kusnirák R. Behrend F. Marchis P. Antonini L. Arnold M. Audejean M. Bachschmidt L. Bernasconi L. Brunetto S. Casulli R. Dymock N. Esseiva M. Esteban O. Gerteis H. de Groot H. Gully Hiroko Hamanowa Hiromi Hamanowa P. Krafft M. Lehký F. Manzini J. Michelet E. Morelle J. Oey F. Pilcher F. Reignier R. Roy P. A. Salom B. D. Warner January 2018 Spin states of asteroids in the Eos collisional family Icarus 299 84–96 2018Icar..299...84H 10.1016/j.icarus.2017.07.007 1707.05507 118855039 External links Lightcurve Database Query (LCDB), at www.minorplanet.info 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 – Geneva Observatory, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1388 1387 Kama 1388 1389 Onnie 001388 Category:Discoveries by Eugène Joseph Delporte Category:Named minor planets 19350924