World Library  
Flag as Inappropriate
Email this Article

(145480) 2005 Tb190

Article Id: WHEBN0021245373
Reproduction Date:

Title: (145480) 2005 Tb190  
Author: World Heritage Encyclopedia
Language: English
Subject: List of minor planets/145401–145500
Publisher: World Heritage Encyclopedia

(145480) 2005 Tb190

(145480) 2005 TB190
Discovered by Becker, A. C., Puckett, A. W., Kubica, J at Apache Point (705)
Discovery date 2005-10-11
MPC designation (145480) 2005 TB190
Minor planet category Ext-SDO (DES)[2]
Orbital characteristics[1]
Epoch : Julian date 2455800.5 (August 27, 2011)
Aphelion 106.58 AU (Q)
Perihelion 46.20 AU (q)
Semi-major axis 76.39 AU (a)
Eccentricity 0.395
Orbital period 667.66 yr
Mean anomaly 357.1° (M)
Inclination 26.43°
Longitude of ascending node 180.5°
Argument of perihelion 171.6°
Physical characteristics
Dimensions 464±62 km[3]
372.5 ± 37.5 km[4]
Albedo 0.148+0.051
Spectral type B-V=0.98
Absolute magnitude (H) 4.6[4]

(145480) 2005 TB190, provisionally known as 2005 TB190, is a trans-Neptunian object (TNO) with an absolute magnitude of 4.7,[1] making it a likely dwarf planet.


(145480) 2005 TB190 is classified as scattered-extended by the Deep Ecliptic Survey (DES) since its orbit appears to be beyond significant gravitational interactions with Neptune's current orbit.[2] Though if Neptune migrated outward, there would have been a period when Neptune had a higher eccentricity. The aphelion of 2005 TB190 lies beyond 106 AU.[4]

Simulations by Emel’yanenko and Kiseleva in 2007 show that (145480) 2005 TB190 appears to have less than a 1% chance of being in a 4:1 resonance with Neptune.[6]

It has been observed 156 times over 7 oppositions.[1] It will come to perihelion in January 2017.[1]

Physical properties

In 2010 thermal flux from 2005 TB190 in the far-infrared was measured by the Herschel Space Telescope. As a result its size was estimated to lie within a range from 335 to 410 km.[4]

In the visible light 2005 TB190 has a moderately red spectral slope.[5]


External links

  • Horizons Ephemeris
This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.