1078 Mentha

Stony background asteroid October 2019 yes 1078 Mentha #D6D6D6 K. Reinmuth Heidelberg Obs. 7 December 1926 (1078) Mentha 1926 XB&1951 CF 11952 LDA917 CBA924 EP ' m E n T @mentha Mentha (flowering plant) main-belt(inner)background 4 September 2017 (JD 2458000.5) 0 93.66 yr (34,208 days) 2.5832 AU 1.9555 AU 2.2693 AU 0.1383 3.42 yr (1,249 days) 142.04° 0.2883 ms / day 7.3716° 93.851° 43.568° 9.94 0.28 km12.619 0.242 km13.59 3.01 km13.660 0.134 km13.675 km13.68 km (taken)15.37 2.11 km 82.870 0.2341 h85 2 h 0.126 0.2590.16410.1819 0.03750.262 0.0410.31 0.180.343 0.020 Tholen SB–V 0.889U–B 0.490 11.33 0.1111.455 0.002 (R)11.6011.8011.911.9 0.211.94 1078 Mentha, provisional designation 1926 XB, is a stony background asteroid from the inner regions of the asteroid belt, approximately 13 kilometers in diameter. It was discovered on 7 December 1926, by astronomer Karl Reinmuth at the Heidelberg-Königstuhl State Observatory in southwest Germany. Only in 1958, it was realized that this object was a rediscovery of an already numbered but lost asteroid (864 Aase). The asteroid was named after the flowering plant of the mint family, Mentha. It has a longer-than average spin rate of 85 hours and possibly an irregular, elongated shape. Identification with former lost asteroid Sometimes, discovered objects turn out to be a rediscovery of a previously lost minor planet. This can be determined by calculating the "new" object's orbit (once it is firmly known) backwards and checking its past positions against those previously recorded for the lost object. Nowadays these identities between two objects are found before they are numbered. In 1958, however, French astronomer André Patry at Nice Observatory found such identity between Mentha, 1926 XB, and the lost minor planet 864 Aase, A917 CB, which had never been re-observed after its discovery by Max Wolf in 1917. Since it was realized that Mentha and Aase were one and the same object, the Minor Planet Center resolved this conflict by keeping everything associated with "1078 Mentha", adding the two oppositional observations by Max Wolf from 1917, and completely vacated "864 Aase", reusing its name and number for another, unrelated discovery made by Reinmuth. Orbit and classification Mentha is a non-family asteroid of the main belt's background population. It orbits the Sun in the inner asteroid belt at a distance of 2.0–2.6 AU once every 3 years and 5 months (1,249 days; semi-major axis of 2.27 AU). Its orbit has an eccentricity of 0.14 and an inclination of 7° with respect to the ecliptic. The asteroid was first observed as A917 CB at Heidelberg in February 1907 (which is the original discovery of 864 Aase, before vacated). The body's observation arc begins at Simeiz Observatory in March 1924, almost four years prior to its official discovery observation at Heidelberg. Physical characteristics In the Tholen classification, Mentha is a common stony S-type asteroid. Rotation period In February 1989, a first rotational lightcurve of Mentha was obtained from photometric observations by Polish astronomer Wiesław Wiśniewski. Lightcurve analysis gave a well-defined rotation period of 85 hours with a brightness variation of 0.87 magnitude (U=3). In February 2013, a similar period of 82.870 hours with an amplitude of 0.65 magnitude was measured by astronomers at the Palomar Transient Factory in California (U=2). A high brightness amplitude is typically indicative for an elongated rather than spherical shape. Its long period is close to that of slow rotators. Diameter and albedo According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Mentha measures between 9.94 and 15.37 kilometers in diameter and its surface has an albedo between 0.126 and 0.343. The Collaborative Asteroid Lightcurve Link agrees with Petr Pravec's revised WISE data and takes an albedo of 0.1641 and a diameter of 13.68 kilometers based on an absolute magnitude of 11.9. Naming This minor planet was named after Mentha, a flowering herb of the mint family. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 102). Reinmuth's flowers Due to his many discoveries, Karl Reinmuth submitted a large list of 66 newly named asteroids in the early 1930s. The list covered his discoveries with numbers between 1009 (1009) and 1200 (1200). This list also contained a sequence of 28 asteroids, starting with 1054 Forsytia, that were all named after plants, in particular flowering plants (also see list of minor planets named after animals and plants). References 30em 2017-10-29 last obs. JPL Small-Body Database Browser: 1078 Mentha (1926 XB) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001078 Jet Propulsion Laboratory 29 November 2017 Dictionary of Minor Planet Names – (1078) Mentha Schmadel Lutz D. Springer Berlin Heidelberg 92 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1079 (1078) Mentha Dictionary of Minor Planet Names – (864) Aase Schmadel Lutz D. Springer Berlin Heidelberg 78–79 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_865 (864) Aase Dictionary of Minor Planet Names – (1054) Forsytia Schmadel Lutz D. Springer Berlin Heidelberg 90 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1055 (1054) Forsytia Patry, A. June 1958 Identification: (864) Aase = (1078) Mentha http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1958MPC...1763...1P Minor Planet Circular 176 1763 1 1958MPC...1763...1P 29 November 2017 1078 Mentha (1926 XB) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1078 29 November 2017 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 1078 Mentha – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1078 28 October 2019 1078 29 November 2017 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 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri C. Nugent M. S. 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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 free (online, AcuA catalog p. 153) 6 C. R. Nugent A. Mainzer J. Bauer R. M. Cutri E. A. Kramer T. Grav J. Masiero S. Sonnett E. L. Wright September 2016 NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos The Astronomical Journal 152 3 12 2016AJ....152...63N 10.3847/0004-6256/152/3/63 1606.08923 free W. Z. Wisniewski T. M. Michalowski A. W. Harris R. S. McMillan March 1995 Photoelectric Observations of 125 Asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=1995LPI....26.1511W Abstracts of the Lunar and Planetary Science Conference 26 1511 1995LPI....26.1511W 29 November 2017 6 Adam Waszczak Chan-Kao Chang Eran O. Ofek Russ Laher Frank Masci David Levitan Jason Surace Yu-Chi Cheng Wing-Huen Ip Daisuke Kinoshita George Helou Thomas A. Prince Shrinivas Kulkarni September 2015 Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W The Astronomical Journal 150 3 35 2015AJ....150...75W 10.1088/0004-6256/150/3/75 1504.04041 8342929 29 November 2017 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 53493339 29 November 2017 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 1078 1077 Campanula 1078 1079 Mimosa 001078 Category:Discoveries by Karl Wilhelm Reinmuth Category:Named minor planets 001078 19261207