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(308193) 2005 CB79

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(308193) 2005 CB79
(308193) 2005 CB79 among other Haumea family objects
Discovery[1]
Discovered byM. E. Brown,
C. A. Trujillo,
D. L. Rabinowitz
Discovery date6 February 2005
Designations
2005 CB79
Cubewano (MPC)[2]
Extended (DES)[3]
Orbital characteristics[4]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 4
Observation arc5083 days (13.92 yr)
Aphelion50.062 AU (7.4892 Tm) (Q)
Perihelion37.231 AU (5.5697 Tm) (q)
43.647 AU (6.5295 Tm) (a)
Eccentricity0.14698 (e)
288.36 yr (105324 d)
319.66° (M)
0° 0m 12.305s / day (n)
Inclination28.606° (i)
112.79° (Ω)
≈ 5 December 2048[5]
±3 days
90.154° (ω)
Physical characteristics
Dimensions158 km[6][7]
6.76 h (0.282 d)
13.52 h[8]
0.7 (assumed)
(Neutral)
B-V=0.73, V-R=0.37[9]
21.1[10]
4.6[4]

(308193) 2005 CB79 is a trans-Neptunian object that is a member of the Haumea family.[9]

Haumea family

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As a member of the Haumea family, (308193) 2005 CB79 is suspected of being an icy mantle collisional fragment from dwarf planet Haumea. With an absolute magnitude (H) of 4.7,[4] and a Haumea-family albedo of 0.7, this object would have a diameter of 158 km.[7]

Observations by Mike Brown in 2012 using the W. M. Keck Observatory suggest that (308193) 2005 CB79 does not have a companion.[11]

The + marks 2005 RR43 (B-V=0.77, V-R=0.41) on this color plot of TNOs. All the other Haumea-family members (2005 CB79: 0.73, 0.37) are located to the lower left of this point.

References

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  1. ^ Marsden, Brian G. (September 1, 2007). "MPEC 2007-R02 : 2003 UY413, 2003 UZ413, 2004 NT33, 2005 CA79, 2005 CB79, 2005 UQ513". IAU Minor Planet Center. Harvard-Smithsonian Center for Astrophysics. Retrieved January 10, 2010.
  2. ^ "MPEC 2010-A05 :Distant Minor Planets (14 January 2010.0 TT)". IAU Minor Planet Center. January 2, 2010. Archived from the original on 14 January 2010. Retrieved January 10, 2010.
  3. ^ Marc W. Buie (December 20, 2008). "Orbit Fit and Astrometric record for 308193". SwRI (Space Science Department). Archived from the original on August 18, 2010. Retrieved January 10, 2010.
  4. ^ a b c "JPL Small-Body Database Browser: (2005 CB79)". December 20, 2008. Retrieved 7 April 2016.
  5. ^ JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
  6. ^ Assuming a Haumea-like albedo of 0.7
  7. ^ a b Dan Bruton. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics & Astronomy (Stephen F. Austin State University). Archived from the original on March 23, 2010. Retrieved December 27, 2009.
  8. ^ Carry, Benoit; Snodgrass, Colin; Lacerda, Pedro; Hainaut, Olivier; Dumas, Christophe (16 July 2012). "Characterisation of candidate members of (136108) Haumea's family: II. Follow-up observations" (PDF). Astronomy & Astrophysics. 544. EDP Sciences: A137. arXiv:1207.6491. Bibcode:2012A&A...544A.137C. doi:10.1051/0004-6361/201219044. S2CID 119256112. Archived from the original (PDF) on 7 November 2014. Retrieved 8 June 2014.
  9. ^ a b 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.
  10. ^ "AstDys 2005CB79 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved January 10, 2010.
  11. ^ Plutokiller (February 3, 2012). "2005 CB79 looks solitary". Twitter. Retrieved February 3, 2012.
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