2006 HH123
Discovery[1][2]
Discovered byM. W. Buie
R. L. Millis
S. D. Kern
Discovery dateApril 26, 2006
Designations
2006 HH123
deleted[3]
Lost
TNO
SDO
Orbital characteristics[4][5]
Epoch April 15, 2006
(JD 2453840.5)
Aphelion82 AU (Q)
Perihelion30 AU (q)
56 AU (a)
Eccentricity0.46 (assumed)[4]
416 yr
360° (M)
Inclination44°
240°
0.4°
Physical characteristics
5.2[4]

    2006 HH123, also written as 2006 HH123, was a misidentified nonexistent object that had a short 1 day observation arc. It was formerly thought to be a lost object with an assumed eccentricity of 0.46.[4] If it had been a scattered-disc object it would have had an absolute magnitude of 5.2,[4] and been a possible dwarf planet. The preliminary orbital elements (as displayed in the infobox to the right) were calculated using only three observations over a period of one day;[4] hence its orbit was very poorly known and it quickly became lost.

    Of the three discovery images, the first one is an unidentified object, the second one was identified as the main-belt asteroid (130902) 2000 VW33, and the third image shows nothing at the measured position.[6] The three observations of 2006 HH123 were deleted on 6 November 2014,[3] and the provisional designation 2006 HH123 is no longer listed in the Minor Planet Center database.

    See also

    • (392741) 2012 SQ31 – misidentified as a large TNO on discovery, turned out to be a sub-kilometer main-belt asteroid
    • 330 Adalberta – another misidentified nonexistent object (the name was later reused for an object that actually exists)

    References

    1. ↑ "MPEC 2006-L50 : 2006 HF123, 2006 HG123, 2006 HH123, 2006 HJ123". IAU Minor Planet Center. 11 June 2006. Retrieved 21 December 2014. (K06HC3H)
    2. ↑ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Archived from the original on 25 July 2011. Retrieved 19 August 2011.
    3. 1 2 M.P.C. 90383
    4. 1 2 3 4 5 6 "Elements and Ephemeris for 2006 HH123". Archived from the original on 4 March 2016. Retrieved 21 December 2014.
    5. ↑ "JPL Small-Body Database Browser: (2006 HH123)" (last observation: 2006-04-27; arc: 1 day; uncertainty: 9 (lost)). Archived from the original on 12 December 2012. Retrieved 19 August 2011.
    6. ↑ "2006 HH123 'lost centaur' este inexistent". Archived from the original on 17 October 2014. Retrieved 19 January 2015.{{cite web}}: CS1 maint: bot: original URL status unknown (link)


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