1727 Mette

Mars-crossing asteroid October 2019 yes 1727 Mette #FA8072 25 January 1965 A. D. Andrews Boyden Obs. (1727) Mette 1965 BA1955 DC Mette Andrews(wife of discoverer) Mars-crosserHungaria 4 September 2017 (JD 2458000.5) 0 61.54 yr (22,477 days) 2.0430 AU 1.6652 AU 1.8541 AU 0.1019 2.52 yr (922 days) 322.85° 22.894° 133.04° 312.94° 1(see 2nd infobox)CBET003402 0.7183 AU 5.44 1.09 km8.97 km (calculated) 2.427 hLCDB-Monson-20112.63 h2.637 h3.22 h2.981 0.001 h2.98125 0.00004 h2.981 0.001 h2.981 0.003 h2.9814 0.0001 h2.98109 0.00007 h2.9808 0.0002 h2.9812 0.0002 h3.000 0.014 h 0.20 (assumed)0.544 0.218 Tholen = SS 12.612.69 0.2712.70 1727 Mette, provisional designation 1965 BA, is a binaryCBET003402 Hungaria asteroid and Mars-crosser from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 25 January 1965, by Irish astronomer David Andrews at Boyden Observatory near Bloemfontein in Free State, South Africa. It was named after the discoverer's wife Mette Andrews. Classification and orbit The S-type asteroid is a member of the Hungaria family, which form the innermost dense concentration of asteroids in the Solar System. It is also a Mars-crossing asteroid, a dynamically unstable group between the main belt and the near-Earth populations. It orbits the Sun in the inner main-belt at a distance of 1.7–2.0 AU once every 2 years and 6 months (922 days). Its orbit has an eccentricity of 0.10 and an inclination of 23° with respect to the ecliptic. Being a Mars-crosser, Mette will make a relatively close approach to Mars on April 15, 2023, when it will pass near the Red Planet at a distance of less than 0.08 AU km on 2. It was first identified as 1955 DC at Goethe Link Observatory in 1955, extending the body's observation arc by 10 years prior to its official discovery observation. Physical parameters A large number of rotational lightcurves of Mette were obtained from photometric observations. They gave a rotation period of approximately 2.981 hours (best rated results) with a brightness variation between 0.22 and 0.38 magnitude, indicating a moderately elongated body (U=3/3/3). The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 8.97 kilometers, while observations with the Wide-field Infrared Survey Explorer gave a diameter of 5.44 kilometers and an albedo of 0.544. Naming This minor planet was named by the discoverer after his wife, Mette Andrews for her comprehension of his nocturnal working hours and absence from home. The approved naming citation was published by the Minor Planet Center on 1 February 1980 (M.P.C. 5183). Moon Satellite 17 January 2013CBET003402 Light-curve 21 km 0.8746 0.0008 days(20 hours, 59 1 minutes) 31 mas (maximum) 1727 Mette 2.14 km 3.4 ± 0.2 fainter than primary 15.7 In 2013, a satellite orbiting the asteroid was discovered. The moon measures about 2 kilometers in diameter and orbits Mette once every 20 hours and 59 minutes. There are several hundreds of asteroids known to have satellites (also see :Category:Binary asteroids). left Notes LCDB-Monson-2011 Monson (2011) web: rotation period 2.427 hours with a brightness amplitude of 0.29. Summary figures at http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1727%7CMette Asteroid Lightcurve Database for (1727) Mette CBET003402 Central Bureau for Astronomical Telegrams (No.3402), 5 February 2013 for (1727) METTE: "CCD photometric observations made between Jan. 17 and 21 show that minor planet (1727) Mette is a binary system with an orbital period of 21.05 +/- 0.03 hr. The light-curve of the primary has a period of 2.98091 +/- 0.00009 hr with an amplitude of 0.33 +/- 0.01 mag, indicating a moderately elongated body. Assuming a triaxial ellipsoidal shape and equatorial view, this gives an a/b ratio of 1.36 +/- 0.02. This makes the object unusual in that the primaries of most small binary systems are nearly spheroidal. The depth of the events ranges from 0.04 to 0.07 mag. The depth of the secondary event gives a lower limit for the effective secondary-to-primary diameter ratio of Ds/Dp = 0.20 +/- 0.02. A general "bowing" of the secondary period light curve (amplitude 0.01–0.02 mag) indicates that the satellite is probably tidally-locked to the orbital period." — Reported by B. D. Warner, Palmer Divide Observatory, Colorado Springs, CO, USA; R. D. Stephens, Center for Solar System Studies, Landers, CA, USA; and A. W. Harris, MoreData!, La Canada, CA, USA. References 30em Johnston Robert (1727) Mette http://www.johnstonsarchive.net/astro/astmoons/am-01727.html johnstonsarchive.net 28 May 2015 2016-09-07 last obs. JPL Small-Body Database Browser: 1727 Mette (1965 BA) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001727 Jet Propulsion Laboratory 1 July 2017 Dictionary of Minor Planet Names – (1727) Mette Schmadel Lutz D. Springer Berlin Heidelberg 137 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1728 (1727) Mette 1727 Mette (1965 BA) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1727 21 December 2016 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 21 December 2016 Asteroids and comets rotation curves – (1727) Mette Behrend Raoul Geneva Observatory http://obswww.unige.ch/~behrend/page4cou.html#001727 21 December 2016 1 April 2019 https://web.archive.org/web/20190401181659/http://obswww.unige.ch/~behrend/page4cou.html#001727 dead 1727 21 December 2016 W. Z. Wisniewski R. S. McMillan May 1987 Differential CCD photometry of faint asteroids in crowded star fields and nonphotometric sky conditions Astronomical Journal 93 1264–1267 0004-6256 1987AJ.....93.1264W 10.1086/114408 free V. V. Prokof'eva M. I. Demchik A. I. Golub' December 1991 TV photometry of asteroids: brightness curve of asteroid 1727 Mette. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1992SoSyR..26..373P Solar System Research 26 4 373–375 1992SoSyR..26..373P 21 December 2016 K. Sárneczky Gy. Szabó L. L. Kiss June 1999 CCD observations of 11 faint asteroids Astronomy and Astrophysics Supplement 137 2 363–368 1999A&AS..137..363S 10.1051/aas:1999251 free D. Gandolfi M. Cigna D. Fulvio C. Blanco January 2009 CCD and photon-counting photometric observations of asteroids carried out at Padova and Catania observatories http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2009P&SS...57....1G Planetary and Space Science 57 1 1–9 2009P&SS...57....1G 10.1016/j.pss.2008.09.014 21 December 2016 0810.1560 Warner, Brian D. October 2011 Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2011 March - July http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011MPBu...38..190W The Minor Planet Bulletin 38 4 190–195 1052-8091 2011MPBu...38..190W 21 December 2016 B. D. Warner R. D. Stephens A. W. Harris February 2013 (1727) Mette http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013CBET.3402....1W Central Bureau Electronic Telegrams 3402 1 2013CBET.3402....1W 21 December 2016 Brian D. Warner Robert D. Stephens July 2013 1727 Mette: A New Hungaria Binary The Minor Planet Bulletin 40 3 129–130 32457949 7249731 1052-8091 2013MPBu...40..129W Brian D. Warner Robert D. Stephens Alan W. Harris January 2015 A Trio of Binary Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42...31W The Minor Planet Bulletin 42 1 31–34 32457967 7249514 1052-8091 2015MPBu...42...31W 21 December 2016 Warner, Brian D. October 2016 Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2016 April–July http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43..300W The Minor Planet Bulletin 43 4 300–304 1052-8091 2016MPBu...43..300W 21 December 2016 6 Amadeo Aznar Macias Alfonso Carreno Garcerain Enrique Arce Masego Pedro Brines Rodriguez Juan Lozano de Haro Alvaro Fornas Silva Gonzalo Fornas Silva Vicente Mas Martinez Onofre Rodrigo Chiner David Herrero Porta July 2016 Twenty-one Asteroid Lightcurves at Group Observadores de Asteroides (OBAS): Late 2015 to Early 2016 http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016MPBu...43..257A The Minor Planet Bulletin 43 3 257–263 1052-8091 2016MPBu...43..257A 21 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 http://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 21 December 2016 B. Carry E. Solano S. Eggl F. E. DeMeo April 2016 Spectral properties of near-Earth and Mars-crossing asteroids using Sloan photometry http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2016Icar..268..340C Icarus 268 340–354 2016Icar..268..340C 10.1016/j.icarus.2015.12.047 21 December 2016 1601.02087 1 November 2015 Asteroids with Satellites Johnston's Archive Wm. Robert Johnston http://www.johnstonsarchive.net/astro/asteroidmoons.html 16 November 2015 V. Alí-Lagoa M. Delbo' July 2017 Sizes and albedos of Mars-crossing asteroids from WISE/NEOWISE data https://www.aanda.org/articles/aa/pdf/2017/07/aa29917-16.pdf Astronomy and Astrophysics 603 8 2017A&A...603A..55A 10.1051/0004-6361/201629917 free 1705.10263 21 October 2017 External links (IAUC) CBET 3402: 20130205 : (1727) METTE Lightcurve plot of 1727 Mette, Palmer Divide Observatory, B. D. Warner (2013) Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Asteroids with Satellites, Robert Johnston, johnstonsarchive.net 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 1727 1726 Hoffmeister 1727 1728 Goethe Link 001727 001727 Category:Discoveries by A. David Andrews Category:Named minor planets 001727 001727 19650125 20130117