1122 Neith

Main-belt asteroid July 2020 yes 1122 Neith #D6D6D6 E. Delporte Uccle Obs. 17 September 1928 (1122) Neith 1928 SB1941 YH1953 OAA924 VA ' n iː ɪ θ Neith (Egyptian mythology) main-belt(middle)background  4 September 2017 (JD 2458000.5) 0 93.01 yr (33,971 days) 3.2763 AU 1.9347 AU 2.6055 AU 0.2575 4.21 yr (1,536 days) 30.680° 0.2343 ms / day 4.7381° 63.385° 328.96° 11.566 0.261 km11.73 km (derived)12.01 0.5 km13.453 1.632 km13.81 0.73 km13.84 1.46 km (MSX)34 12.599 0.006 h 0.206 0.0480.2756 (derived)0.2836 0.04350.284 0.0430.340.4450 0.044 AS (assumed) 11.1011.6711.711.71 0.4911.9 1122 Neith ' n iː ɪ θ,that is, pronounced with two syllables, NEE-ith. provisional designation 1928 SB, is a background asteroid from the central region of the asteroid belt, approximately 12 kilometers in diameter. It was discovered by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle on 17 September 1928. The asteroid was named after the goddess Neith from Egyptian mythology. Orbit and classification Neith is a non-family asteroid from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 1.9–3.3 AU once every 4 years and 3 months (1,536 days; semi-major axis of 2.61 AU). Its orbit has an eccentricity of 0.26 and an inclination of 5° with respect to the ecliptic. The body's observation arc begins with its observation as A924 VA at Heidelberg Observatory in November 1924, almost four years prior to its official discovery observation at Uccle. Physical characteristics Neith has been characterized as an uncommon A-type asteroid during a spectroscopic survey after it had previously been classified as X-type in the Tholen taxonomy. The asteroid's surface shows a strong 0.96 μm absorption band (depth of 24%) and a steep slope in the near-infrared region, typical of olivine-rich bodies. The survey was conducted at the NTT, TNG and IRTF telescopes during 2004–2007. Rotation period In September 2008, a rotational lightcurve of Neith was obtained from photometric observations by Julian Oey at the Leura and Kingsgrove Observatory in Australia. Lightcurve analysis gave a synodic rotation period of 12.5990 hours with a brightness variation of 0.08 magnitude (U=2). Diameter and albedo According to the surveys carried out by the Infrared Astronomical Satellite IRAS (SIMPS and MSX), the Spitzer Space Telescope (MIPS photometer and MIPSGAL survey) and the NEOWISE mission of the Wide-field Infrared Survey Explorer, Neith measures between 11.566 and 13.84 kilometers in diameter and its surface has an albedo between 0.206 and 0.4450.34 The Collaborative Asteroid Lightcurve Link derives an albedo of 0.2756 and a diameter of 11.73 kilometers based on an absolute magnitude of 11.67. Naming This minor planet was named from Egyptian mythology after the goddess of Libyan origin, Neith, goddess of the hunt and of war, believed to be the mother of the Sun. The official naming citation was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 105). References 30em 2017-11-27 last obs. JPL Small-Body Database Browser: 1122 Neith (1928 SB) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001122 Jet Propulsion Laboratory 25 January 2018 Dictionary of Minor Planet Names – (1122) Neith Schmadel Lutz D. Springer Berlin Heidelberg 95 2007 https://books.google.com/books?id=aeAg1X7afOoC&dq=1122+Neith&pg=PA94 978-3-540-00238-3 1122 Neith (1928 SB) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=1122 25 January 2018 6 Joseph R. Masiero A. K. Mainzer T. Grav J. M. Bauer R. M. Cutri J. Dailey P. R. M. Eisenhardt R. S. McMillan T. B. Spahr M. F. Skrutskie D. Tholen R. G. Walker E. L. Wright E. DeBaun D. Elsbury T. IV Gautier S. Gomillion A. Wilkins 118745497 November 2011 Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters The Astrophysical Journal 741 2 20 2011ApJ...741...68M 10.1088/0004-637X/741/2/68 1109.4096 6 Erin Lee Ryan Donald R. Mizuno Sachindev S. Shenoy Charles E. Woodward Sean Carey Alberto Noriega-Crespo Kathleen E. Kraemer Stephan D. Price April 2012 The Kilometer-Sized Main Belt Asteroid Population as Revealed by Spitzer astro-ph.EP 1204.1116 Asteroid 1122 Neith – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=1122 28 October 2019 1122 25 January 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 118700974 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 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 12 IRAS-A-FPA-3-RDR-IMPS-V6.0 2004PDSS...12.....T 22 October 2019 6 E. L. Ryan D. R. Mizuno S. S. Shenoy C. E. Woodward S. J. Carey A. Noriega-Crespo K. E. Kraemer S. D. Price 21069867 June 2015 The kilometer-sized Main Belt asteroid population revealed by Spitzer Astronomy and Astrophysics 578 12 2015A&A...578A..42R 10.1051/0004-6361/201321375 1204.1116 Oey, Julian October 2009 Lightcurve Analysis of Asteroids from Leura and Kingsgrove Observatory in the Second Half of 2008 The Minor Planet Bulletin 36 4 162–164 1052-8091 2009MPBu...36..162O S. Fornasier B. E. Clark E. Dotto 118549118 July 2011 Spectroscopic survey of X-type asteroids Icarus 214 1 131–146 2011Icar..214..131F 10.1016/j.icarus.2011.04.022 1105.3380 Gerard Faure Lawrence Garrett October 2009 Suggested Revised H Values of Selected Asteroids: Report Number 4 The Minor Planet Bulletin 36 4 140–143 1052-8091 2009MPBu...36..140F 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 53493339 November 2015 Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results Icarus 261 34–47 2015Icar..261...34V 10.1016/j.icarus.2015.08.007 1506.00762 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 1122 1121 Natascha 1122 1123 Shapleya 001122 Category:Discoveries by Eugène Joseph Delporte Category:Named minor planets 19280917