(303775) 2005 QU182

Last updated

(303775) 2005 QU182
Discovery [1]
Discovered by
Discovery site Palomar Obs.
Discovery date30 August 2005
Designations
2005 QU182
TNO (SDO) [2] [3]
Orbital characteristics [4]
Epoch 13 January 2016 (JD  2457400.5)
Uncertainty parameter 2
Observation arc 13642 days (37.35 yr)
Aphelion 184.19  AU (27.554  Tm) (Q)
Perihelion 36.827 AU (5.5092 Tm) (q)
110.51 AU (16.532 Tm) (a)
Eccentricity 0.66675 (e)
1161.74  yr (424325.7  d)
13.854° (M)
0° 0m 3.054s / day (n)
Inclination 14.032° (i)
78.395° (Ω)
223.69° (ω)
Known satellites 0
Earth  MOID 35.8244 AU (5.35925 Tm)
Jupiter  MOID 31.769 AU (4.7526 Tm)
TJupiter 6.711
Physical characteristics
584+155
−144 km [5]
9.61  h (0.400  d)
9.61 hr [4]
0.129+0.115
−0.046 [5]
20.9 [6]
3.99±0.02 [5]
3.74 [4]

    (303775) 2005 QU182 (provisional designation 2005 QU182) is a trans-Neptunian object in the scattered disk, estimated to be around 440 to 740 kilometres (270 to 460 miles) in diameter. It was discovered on 30 August 2005 by American astronomers Mike Brown, David Rabinowitz and Chad Trujillo at the Palomar Observatory in California. [1]

    Contents

    Distance

    It came to perihelion in 1971 [4] and is currently 51.8  AU from the Sun. [6] In April 2013, it moved beyond 50 AU from the Sun.

    It has been observed 81 times over 10 oppositions with precovery images back to 1974. [4]

    2005 QU182 takes over 1,200 years to orbit the Sun. Among large TNOs, only Sedna, 2012 VP113, 2013 FS28 and (445473) 2010 VZ98 have a longer orbit around the Sun. 2005QU182-orbit.png
    2005 QU182 takes over 1,200 years to orbit the Sun. Among large TNOs, only Sedna, 2012 VP113 , 2013 FS28 and (445473) 2010 VZ98 have a longer orbit around the Sun.

    Physical characteristics

    2005 QU182 has a bright absolute magnitude of 3.74. [4]

    In 2012, the diameter of 2005 QU182 was initially estimated to be 416±73 km using data from the Herschel Space Telescope. [8] Later in 2020, the data was reanalyzed, which yielded a notably larger diameter of 584+155
    −144     km    . [5]

    References

    1. 1 2 "MPEC 2007-R03 : 2004 PF115, 2004 PG115, 2004 XA192, 2005 QU182". IAU Minor Planet Center. 1 September 2007. Retrieved 26 August 2009.
    2. ↑ "List Of Centaurs and Scattered-Disk Objects". Minor Planet Center. Retrieved 22 January 2009.
    3. ↑ Marc W. Buie (24 October 2008). "Orbit Fit and Astrometric record for 05QU182". SwRI (Space Science Department). Retrieved 9 December 2008.
    4. 1 2 3 4 5 6 "JPL Small-Body Database Browser: (2005 QU182)" (last observation: 2009-09-18). Retrieved 7 April 2016.
    5. 1 2 3 4 Farkas-Takács, A.; Kiss, Cs.; Vilenius, E.; Marton, G.; Müller, T. G.; Mommert, M.; et al. (28 February 2020). "TNOs are Cool! A Survey of the transneptunian Region XV. Physical characteristics of 23 resonant transneptunian and scattered disk objects". Astronomy & Astrophysics. A23: 638. arXiv: 2002.12712 . Bibcode:2020A&A...638A..23F. doi:10.1051/0004-6361/201936183. S2CID   216193564.
    6. 1 2 "AstDys 2005QU182 Ephemerides". Department of Mathematics, University of Pisa, Italy. Archived from the original on 26 May 2011. Retrieved 16 March 2009.
    7. ↑ "JPL Small-Body Database Search Engine: H < 6 (mag) and a > 80 (AU)". JPL Solar System Dynamics. Retrieved 14 June 2014.
    8. ↑ Santos-Sanz, P.; Lellouch, E.; Fornasier, S.; Kiss, C.; Pal, A.; Müller, T. G.; Vilenius, E.; Stansberry, J.; Mommert, M.; Delsanti, A.; Mueller, M.; Peixinho, N.; Henry, F.; Ortiz, J. L.; Thirouin, A.; Protopapa, S.; Duffard, R.; Szalai, N.; Lim, T.; Ejeta, C.; Hartogh, P.; Harris, A. W.; Rengel, M. (2012). ""TNOs are Cool": A survey of the trans-Neptunian region IV. Size/albedo characterization of 15 scattered disk and detached objects observed with Herschel-PACS". Astronomy & Astrophysics. 541: A92. arXiv: 1202.1481 . Bibcode:2012A&A...541A..92S. doi:10.1051/0004-6361/201118541. S2CID   118600525.
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