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(120178) 2003 OP32

Summary

(120178) 2003 OP32, also written as (120178) 2003 OP32, is a trans-Neptunian object (TNO) that resides in the Kuiper belt. It was discovered on July 26, 2003 by Michael E. Brown, Chad Trujillo and David L. Rabinowitz at Palomar Mountain in California.

(120178) 2003 OP32
(120178) 2003 OP32 among other Haumea family objects
Discovery
Discovered byM. E. Brown, C. Trujillo, D. Rabinowitz[1]
Discovery date26 July 2003
Designations
(120178) 2003 OP32
Cubewano (MPC)[2]
Extended (DES)[3]
Orbital characteristics[4]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc9205 days (25.20 yr)
Aphelion47.620 AU (7.1239 Tm)
Perihelion38.480 AU (5.7565 Tm)
43.050 AU (6.4402 Tm)
Eccentricity0.10615
282.47 yr (103172 d)
4.51 km/s
71.841°
0° 0m 12.561s / day
Inclination27.219°
182.930°
67.082°
Jupiter MOID33.5815 AU (5.02372 Tm)
TJupiter5.208
Physical characteristics
Dimensions230 km[5][6]
9.71 h (0.405 d)
8.45 h[7]
0.7 (assumed)
Temperature~42 K
(Neutral)
B−V=0.70, V-R=0.39[8]
B0-V0=0.698[7]
3.8[4]

Origin edit

Based on their common pattern of infrared water-ice absorption and the clustering of their orbital elements,[9] the other KBOs 1995 SM55, (19308) 1996 TO66, (55636) 2002 TX300 and (145453) 2005 RR43, among others, appear to be collisional fragments broken off the dwarf planet Haumea. The neutral color of the spectrum of these objects in the visible range evidences a lack of complex organics on the surface of these bodies that has been studied in detail for the surface of Haumea.[10]

References edit

  1. ^ List Of Transneptunian Objects Archived 2007-06-19 at the Wayback Machine
  2. ^ "MPEC 2009-R09 :Distant Minor Planets (2009 SEPT. 16.0 TT)". IAU Minor Planet Center. 2009-09-04. Retrieved 2009-10-04.
  3. ^ Marc W. Buie (2005-09-03). "Orbit Fit and Astrometric record for 120178". (using 41 of 42 observations) SwRI (Space Science Department). Retrieved 2009-10-04.
  4. ^ a b "JPL Small-Body Database Browser: 120178 (2003 OP32)". (last obs). 2009-07-19. Archived from the original on 2020-08-19. Retrieved 11 April 2016.
  5. ^ Assuming a Haumea-like albedo of 0.7
  6. ^ Dan Bruton. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics & Astronomy (Stephen F. Austin State University). Retrieved 2009-12-27.
  7. ^ a b David L. Rabinowitz; Bradley E. Schaefer; Martha W. Schaefer; Suzanne W. Tourtellotte (2008). "The Youthful Appearance of the 2003 EL61 Collisional Family". The Astronomical Journal. 136 (4): 1502–1509. arXiv:0804.2864. Bibcode:2008AJ....136.1502R. doi:10.1088/0004-6256/136/4/1502. S2CID 117167835.
  8. ^ Snodgrass, Carry; Dumas, Hainaut (16 December 2009). "Characterisation of candidate members of (136108) Haumea's family". Astronomy and Astrophysics. 511: A72. arXiv:0912.3171. Bibcode:2010A&A...511A..72S. doi:10.1051/0004-6361/200913031. S2CID 62880843.
  9. ^ Pinilla-Alonso, N.; Licandro, J.; Gil-Hutton, R.; Brunetto, R. (June 2007). "The water ice rich surface of (145453) 2005 RR43: a case for a carbon-depleted population of TNOs?". Astronomy and Astrophysics. 468 (1): L25. arXiv:astro-ph/0703098. Bibcode:2007A&A...468L..25P. doi:10.1051/0004-6361:20077294. S2CID 18546361. Pinilla-Alonso et al. 2007
  10. ^ N. Pinilla-Alonso; R. Brunetto; J. Licandro; R. Gil-Hutton; T. L. Roush & G. Strazzulla (March 2009). "Study of the Surface of 2003 EL61, the largest carbon-depleted object in the trans-neptunian belt". Astronomy and Astrophysics. 496 (2): 547–556. arXiv:0803.1080. Bibcode:2009A&A...496..547P. doi:10.1051/0004-6361/200809733. S2CID 15139257.

External links edit

  • (120178) 2003 OP32 Precovery Images
  • (120178) 2003 OP32 at the JPL Small-Body Database
    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters