V774104 : Wikipedia, the free encyclopedia

V774104

Trans-Neptunian object

V774104 is the internal designation for the trans-Neptunian object designated 2015 TH367, but in November 2015 press releases confused it with 541132 Leleākūhonua, which was provisionally designated 2015 TG₃₈₇ and internally designated V302126.^[1] as both objects were mentioned at the American Astronomical Society’s Division for Planetary Sciences meeting. Various news articles speculated that V774104 was currently 103 AU (15.4 billion km) from the Sun, but its observation arc was too short to know whether its perihelion (closest approach to the Sun) was even outside Neptune's influence.^[2]

Perihelion (closest approach to the Sun)
Object	Perihelion (AU)	Heliocentric distance (AU)	Classification
Neptune (for comparison)	30	30	Planet
541132 Leleākūhonua (2015 TG₃₈₇)	65	79	Sednoid
2015 TH367	29 ± 6	89	Scattered disc

References

^ Trujillo, Chadwick; et al. (2018). A New Inner Oort Cloud Object. 50th Annual Meeting of the Division for Planetary Sciences. 21-26 October 2018. Knoxville, Tennessee. Bibcode:2018DPS....5031109T.
^ Witze, Alexandra (10 November 2015). "Astronomers spy most distant Solar System object ever". Nature News. doi:10.1038/nature.2015.18770.

2015 in space

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Space probe launches

Space probes	SMAP (weather satellite; Jan 2015) LISA Pathfinder (technology demonstration; Dec 2015)
Space observatories	DSCOVR (weather satellite; Feb 2015) Astrosat (space telescope; Sep 2015)