2006 HH123
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.
Discovery[1][2] | |
---|---|
Discovered by | M. W. Buie R. L. Millis S. D. Kern |
Discovery date | April 26, 2006 |
Designations | |
2006 HH123 | |
deleted[3] Lost TNO SDO | |
Orbital characteristics[4][5] | |
Epoch April 15, 2006 (JD 2453840.5) | |
Aphelion | 82 AU (Q) |
Perihelion | 30 AU (q) |
56 AU (a) | |
Eccentricity | 0.46 (assumed)[4] |
416 yr | |
360° (M) | |
Inclination | 44° |
240° | |
0.4° | |
Physical characteristics | |
5.2[4] | |
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
- "MPEC 2006-L50 : 2006 HF123, 2006 HG123, 2006 HH123, 2006 HJ123". IAU Minor Planet Center. 11 June 2006. Retrieved 21 December 2014. (K06HC3H)
- "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Archived from the original on 25 July 2011. Retrieved 19 August 2011.
- M.P.C. 90383
- "Elements and Ephemeris for 2006 HH123". Archived from the original on 4 March 2016. Retrieved 21 December 2014.
- "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.
- "2006 HH123 'lost centaur' este inexistent". Archived from the original on 17 October 2014. Retrieved 19 January 2015.
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