Английская Википедия:(523731) 2014 OK394

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Шаблон:Mp, also known as Шаблон:Mp, is a trans-Neptunian object that orbits in the outer Solar System beyond the orbit of Neptune. First observed as Шаблон:Mp by Spacewatch on 20 September 1995, it was a lost minor planet with an insufficiently defined orbit with only 36 days of observations. On 8 October 2010, it was rediscovered by the Pan-STARRS 1 survey and later announced as Шаблон:Mp in July 2016. It was not until November 2020 when amateur astronomers S. Deen and K. Ly identified Шаблон:Mp and Шаблон:Mp as the same object. This identification was confirmed and announced by the Minor Planet Center in January 2021.

Once thought to be a centaur crossing the orbits of the gas giants, Шаблон:Mp is now known to be a trans-Neptunian object in a 3:5 orbital resonance with Neptune. With an estimated diameter between Шаблон:Convert, it was formerly considered one of the largest centaurs.

Observations

First observation and loss

Шаблон:Mp was near perihelion 35.4 AU from the Sun when it was first observed in 1995, by astronomers Nichole Danzl and Arianna Gleason of the Spacewatch survey at Kitt Peak Observatory in Arizona, United States. It was only observed 14 times over 36 days, from 20 September to 26 October 1995. The discovery observations of Шаблон:Mp were published and announced by the Minor Planet Center on 11 June 1999. By 2020 the 3-sigma uncertainty in the heliocentric distance to the original orbit solution for Шаблон:Mp was approximately ±Шаблон:Convert.Шаблон:Citation needed

Recovery

On 30 November 2020, amateur astronomers S. Deen and K. Ly identified Шаблон:Mp as the 3:5 resonant trans-Neptunian object Шаблон:Mp, which was discovered by Pan-STARRS 1 in 2010. The identification was published by the Minor Planet Center on 27 January 2021.

Classification and orbit

Шаблон:Mp orbits the Sun at an average distance of 42.33 AU once every 275 years. Its orbit has an eccentricity of 0.16 and an inclination of 4° with respect to the ecliptic plane. Over the course of its orbit, its distance from the Sun ranges from 35.4 AU at perihelion to 49.3 AU at aphelion. Шаблон:Mp is in a 3:5 mean-motion orbital resonance with Neptune; for every three orbits it makes, Neptune orbits five times. Its orbit has a minimum orbit intersection distance approximately Шаблон:Convert from Neptune's orbital path.

Numbering and naming

Шаблон:Mp was numbered by the Minor Planet Center on 25 September 2018 and received the number Шаблон:LoMP in the minor planet catalog. The alternate provisional designation Шаблон:Mp was given by the Minor Planet Center on 27 January 2021 after the two objects were linked. Шаблон:As of, it has not been named.

See also

• Lost minor planet
• 1995 GJ – lost trans-Neptunian object
• Шаблон:Mpl – misidentified nonexistent minor planet
• Шаблон:Mpl – main-belt asteroid originally misidentified as a trans-Neptunian object

External links

• A 300-kilometre space rock has vanished since we saw it in 1995, Joshua Sokol, New Scientist, 25 October 2017
• Шаблон:JPL small body