page_title: (145480) 2005 TB190
section_title: Orbit
hierarchical_section_title: (145480) 2005 TB190 / Orbit
caption_attribution_description: English: en:Extreme trans-Neptunian object orbits by eccentricity vs perihelion distance
context_page_description: (145480) 2005 TB₁₉₀, provisionally known as 2005 TB₁₉₀, is a trans-Neptunian object with an absolute magnitude of 4.4, making it a likely dwarf planet.
context_section_description: (145480) 2005 TB₁₉₀ is classified as scattered-extended by the Deep Ecliptic Survey (DES), because its orbit appears to be beyond significant gravitational interactions with Neptune's current orbit. However, if Neptune migrated outward, there would have been a period when Neptune had a higher eccentricity. The aphelion of (145480) 2005 TB₁₉₀ lies at 104 AU.
  Simulations by Emel’yanenko and Kiseleva in 2007 showed that (145480) 2005 TB₁₉₀ appears to have less than a 1% chance of being in a 4:1 resonance with Neptune.
  It has been observed 202 times over seven oppositions. It will come to perihelion in January 2017. There are precovery observations dating back to November 2001.
caption: (145480) 2005 TB190 is located near the "gap", a poorly understood region.
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