(120178) 2003 OP32

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(120178) 2003 OP32
Discovery
Discovered by M. E. Brown, C. Trujillo, D. Rabinowitz[1]
Discovery date July 26, 2003
Designations
MPC designation (120178) 2003 OP32
Minor planet category Cubewano (MPC)[2]
Extended (DES)[3]
Orbital characteristics[4]
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 47.963 AU (7175.166 Gm)
Perihelion 38.602 AU (5774.750 Gm)
Semi-major axis 43.282 AU (6474.958 Gm)
Eccentricity 0.108
Orbital period 284.76 a (104,007.766 d)
Average orbital speed 4.51 km/s
Mean anomaly 57.925°
Inclination 27.189°
Longitude of ascending node 182.940°
Argument of perihelion 69.449°
Physical characteristics
Dimensions 230 km[5][6]
Sidereal rotation period 8.45 hr[7]
Albedo 0.7 (assumed)
Temperature ~42 K
Spectral type

(Neutral)
B-V=0.70, V-R=0.39[8]


B0-V0=0.698[7]
Absolute magnitude (H) 3.95[4]

    (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.

    Origin

    Main article: Haumea family

    Based on their common pattern of IR water-ice absorption and the clustering of their orbital elements,[9] the KBOs (120178) 2003 OP32, 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

    1. ↑ List Of Transneptunian Objects
    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. ↑ 4.0 4.1 "JPL Small-Body Database Browser: 120178 (2003 OP32)". (last obs). 2009-07-19. Retrieved 2009-08-28. 
    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. ↑ 7.0 7.1 David L. Rabinowitz, Bradley E. Schaefer, Martha W. Schaefer, Suzanne W. Tourtellotte (2008). "The Youthful Appearance of the 2003 EL61 Collisional Family". ArXiv.org. arXiv:0804.2864. Bibcode:2008AJ....136.1502R. doi:10.1088/0004-6256/136/4/1502. 
    8. ↑ Snodgrass, Carry, Dumas, Hainaut (16 December 2009). "Characterisation of candidate members of (136108) Haumea's family". The Astrophysical Journal. arXiv:0912.3171. Bibcode:2010A&A...511A..72S. doi:10.1051/0004-6361/200913031. 
    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.  Pinilla-Alonso et al. 2007
    10. ↑ N. Pinilla-Alonso, R. Brunetto, J. Licandro, R. Gil-Hutton, T. L. Roush, and 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. arXiv:0803.1080. Bibcode:2009A&A...496..547P. doi:10.1051/0004-6361/200809733. 

    External links

    Moons
    Classification
    Collisional family
    Controversy
    • (120177) 2003 LW3
    • (120178) 2003 OP32
    • (120179) 2003 QY75
    Minor planets
    Asteroids
    Distant minor planets
    Comets
    Meteoroids
    • Bolide
    • Dust
    • Fireball
    • Meteor
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    Lists / categories


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