(

provisional designation Provisional designation in astronomy is the naming convention applied to astronomical objects immediately following their discovery. The provisional designation is usually superseded by a permanent designation once a reliable orbit has been calcu ...

) is a trans-Neptunian object (TNO) with an absolute magnitude of 4.4.

Orbit

Extreme transneptunian object eccentricity vs perihelion

is classified as scattered-extended by the

Deep Ecliptic Survey The Deep Ecliptic Survey (DES) is a project to find Kuiper belt objects (KBOs), using the facilities of the National Optical Astronomy Observatory (NOAO). The principal investigator is Robert L. Millis. Since 1998 through the end of 2003, the sur ...

(DES), because its orbit appears to be beyond significant gravitational

interactions Interaction is action that occurs between two or more objects, with broad use in philosophy and the sciences. It may refer to: Science * Interaction hypothesis, a theory of second language acquisition * Interaction (statistics) * Interactions o ...

with

Neptune Neptune is the eighth planet from the Sun and the farthest known planet in the Solar System. It is the fourth-largest planet in the Solar System by diameter, the third-most-massive planet, and the densest giant planet. It is 17 times ...

's current orbit. However, if Neptune migrated outward, there would have been a period when Neptune had a higher eccentricity. The aphelion of lies at 104 AU. Simulations by Emel’yanenko and Kiseleva in 2007 showed that 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 ''Oppositions'' was an architectural journal produced by the Institute for Architecture and Urban Studies from 1973 to 1984. Many of its articles contributed to advancing architectural theory and many of its contributors became distinguished practi ...

. It will come to perihelion in January 2017. There are precovery observations dating back to November 2001.

Physical properties

In 2010, thermal flux from in the far-infrared was measured by the

Herschel Space Telescope The Herschel Space Observatory was a space observatory built and operated by the European Space Agency (ESA). It was active from 2009 to 2013, and was the largest infrared telescope ever launched until the launch of the James Webb Space Teles ...

. As a result, its size was estimated to lie within a range from 335 to 410 km. In the visible light, has a moderately red spectral slope. The TNO was found in 2009 to have a rotation period of 12.68 ±3 hours, a common value for trans-Neptunian objects of its size. Similarly-sized has a rotation period of 11.7 ± 3 hours.

References

External links

* {{DEFAULTSORT:145480 Scattered disc and detached objects 2005 TB190 2005 TB190 2005 TB190 Possible dwarf planets 20051011