(444030) 2004 NT33

Kuiper Belt object yes (444030) 2004 NT 33 #C2E0FF 13 July 2004 Palomar team Palomar Obs. 10 August 1982 (444030) 2004 NT 33 TNOcubewanoExtended 4 September 2017 (JD 2458000.5) 3 33.99 yr (12,415 days) 50.014 AU 36.838 AU 43.426 AU 0.1517 286.18 yr (104,527 days) 41.709° 0.0034 ms / day 31.231° 240.87° 37.400° 0 423 +87 -80 km 7.87 0.05 h 0.125 Prominent water (H 2 O/"bowl" type)5 20.94 4.44.7 (444030) 2004 NT 33 is a trans-Neptunian object from the classical Kuiper belt, approximately 450 kilometers in diameter. It was discovered on 13 July 2004, by astronomers at Palomar Observatory, California, United States. Orbit and classification 2004 NT 33 is a "cubewano", a classical, low-eccentricity object in the Kuiper belt, that orbits the Sun at a distance of 36.8–50.0 AU once every 286 years and 2 months (104,527 days). Its orbit has an eccentricity of 0.15 and an inclination of 31° with respect to the ecliptic. It is currently 39 AU from the Sun. A first precovery was taken at the Siding Spring Observatory in 1982, extending the body's observation arc by 22 years prior to its official discovery observation at Palomar. Physical characteristics Rotation period In 2009, astronomers obtained a rotational lightcurve of 2004 NT 33 from photometric observations, which were taken at the Galileo National Telescope (TNG) on the island of La Palma, and at the Sierra Nevada Observatory in Granada, both located in Spain. The ambiguous lightcurve gave a rotation period of 7.87 hours with a low brightness amplitude of 0.04 magnitude. Diameter and albedo According to the "TNOs are Cool" survey, using observations from the space-based Herschel and Spitzer telescopes, 2004 NT 33 measures 423 kilometers in diameter and its surface has a visual geometric albedo of 0.125. Naming 2025, this minor planet remains unnamed. References 30em 2016-08-06 last obs. JPL Small-Body Database Browser: 444030 (2004 NT33) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2444030 Jet Propulsion Laboratory 2 June 2017 444030 (2004 NT33) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=444030 2 June 2017 6 E. Vilenius C. Kiss T. Müller M. Mommert P. Santos-Sanz A. Pál J. Stansberry M. Mueller N. Peixinho E. Lellouch S. Fornasier A. Delsanti A. Thirouin J. L. Ortiz R. Duffard D. Perna F. Henry April 2014 "TNOs are Cool": A survey of the trans-Neptunian region. X. Analysis of classical Kuiper belt objects from Herschel and Spitzer observations Astronomy and Astrophysics 564 18 2014A&A...564A..35V 10.1051/0004-6361/201322416 free 1403.6309 118513049 (444030) 2004 NT33 AstDyS-2 (Asteroids – Dynamic Site) https://newton.spacedys.com/astdys/index.php?pc=1.1.3.0&n=2004NT33 2 June 2017 6 A. Thirouin J. L. Ortiz A. Campo Bagatin P. Pravec N. Morales O. Hainaut R. Duffard August 2012 Short-term variability of 10 trans-Neptunian objects Monthly Notices of the Royal Astronomical Society 424 4 3156–3177 2012MNRAS.424.3156T 10.1111/j.1365-2966.2012.21477.x free 1207.2044 53467482 Marc W. Buie Marc W. Buie Orbit Fit and Astrometric record for 444030 SwRI (Space Science Department) http://www.boulder.swri.edu/~buie/kbo/astrom/444030.html 2018-02-18 etal Noemí Pinilla-Alonso Rosario Brunetto Mário N. De Prá Bryan J. Holler Elsa Hénault Ana Carolina de Souza Feliciano A JWST/DiSCo-TNOs portrait of the primordial Solar System through its trans-Neptunian objects https://hal.science/hal-04961629v1/file/s41550-024-02433-2.pdf Nature Astronomy December 2024 9 2 230–244 10.1038/s41550-024-02433-2 2025NatAs...9..230P 274932942 External links Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 2016-07-29 – Observatoire de Genève, Raoul Behrend Discovery Circumstances: Numbered Minor Planets (440001)-(445000) – Minor Planet Center 444030 444030 (444030) 2004 NT 33 Category:Classical Kuiper belt objects Category:Discoveries by the Palomar Observatory 20040713