1217 Maximiliana

Main-belt asteroid October 2019 yes 1217 Maximiliana #D6D6D6 1217Max-mag16-pjh.jpg Maximiliana (marked "1217") near spiral galaxy NGC 521; imaged by K. and P. J. Heider. E. Delporte Uccle Obs. 13 March 1932 (1217) Maximiliana 1932 EC1925 HC1962 TD Max Wolf(German astronomer) main-belt(inner)Erigonebackground 4 September 2017 (JD 2458000.5) 0 92.59 yr (33,818 days) 2.7157 AU 1.9901 AU 2.3529 AU 0.1542 3.61 yr (1,318 days) 196.36° 0.2731 ms / day 5.1534° 148.43° 91.464° 16.81 km (calculated) 3.1987 0.0001 hlcdb-Pravec-2015 0.057 (assumed) C (assumed) 12.612.7 1217 Maximiliana, provisional designation 1932 EC, is a background asteroid from the inner regions of the asteroid belt, approximately 17 km mi 2 us in diameter. It was discovered on 13 March 1932, by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle. The asteroid was named in memory of Max Wolf, a German astronomer and discoverer of asteroids himself, who independently discovered this asteroid. Orbit and classification Maximiliana is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. Based on osculating Keplerian orbital elements, the asteroid has also been classified as a member of the Erigone family (406), a large asteroid family named after 163 Erigone. It orbits the Sun in the inner asteroid belt at a distance of 2.0–2.7 AU once every 3 years and 7 months (1,318 days; semi-major axis of 2.35 AU). Its orbit has an eccentricity of 0.15 and an inclination of 5° with respect to the ecliptic. The asteroid was first observed as 1925 HC at Heidelberg in April 1925. The body's observation arc begins in May 1925, also at Heidelberg, and almost 8 years prior to its official discovery observation at Uccle. Naming This minor planet was named in memory of Max Wolf (1863–1932), who independently discovered this asteroids the night before its official discovery by Delporte. Wolf was a German astronomer, founder and director of the influential Heidelberg Observatory, and a prolific discoverer of minor planets and other astronomical objects himself. The asteroid was named by the discoverer based on a suggestion by Wolf's widow. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 112). Asteroid 827 Wolfiana and the lunar crater Wolf were also named in his honor. Physical characteristics Maximiliana is an assumed carbonaceous C-type asteroid. For comparison, members of the Erigone family are typically found to be C- and X-type asteroids.23 Rotation period In March 2015, a rotational lightcurve of Maximiliana was obtained from photometric observations by Petr Pravec at Ondřejov Observatory. Lightcurve analysis gave a rotation period of 3.1987 hours with a brightness amplitude of 0.21 magnitude (U=3-).lcdb-Pravec-2015 Diameter and albedo Maximiliana has not been observed by any of the space-based telescopes such as the Wide-field Infrared Survey Explorer, the Akari satellite or the Infrared Astronomical Satellite IRAS. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 16.81 kilometers based on an absolute magnitude of 12.6. Notes lcdb-Pravec-2015 Pravec (2015) web: lightcurve plot of (1217) Maximiliana with a rotation period of 3.1987 0.0001 hours and a brightness amplitude of 0.21 0.02 mag. Quality Code of 3-. Summary figures at the LCDB and Pravec, P.; Wolf, M.; Sarounova, L. (2015) (2015) (data sheet) References 30em 2017-11-24 last obs. JPL Small-Body Database Browser: 1217 Maximiliana (1932 EC) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001217 Jet Propulsion Laboratory 12 January 2018 Schmadel Lutz D. Dictionary of Minor Planet Names Springer Berlin Heidelberg 101 2007 978-3-540-00238-3 10.1007/978-3-540-29925-7_1218 (1217) Maximiliana 1217 Maximiliana (1932 EC) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1217 12 January 2018 Asteroid 1217 Maximiliana – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1217 28 October 2019 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 1217 12 January 2018 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 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center 1217 1216 Askania 1217 1218 Aster 001217 Category:Discoveries by Eugène Joseph Delporte Category:Named minor planets 19320313