2013 FZ27

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2013 FZ27
Discovered by Scott Sheppard
Chad Trujillo
Cerro Tololo Inter-American Observatory (807)
Discovery date 16 March 2013
announced: 2 April 2014
MPC designation 2013 FZ27
slightly beyond 1:2 resonance[2]
Orbital characteristics[3]
Epoch 13 January 2016 (JD 2457400.5)[3]
Uncertainty parameter 3
Observation arc 4782 days (13.09 yr)
Earliest precovery date 20 February 2001
Aphelion 58.875 AU (8.8076 Tm) (Q)
Perihelion 37.961 AU (5.6789 Tm) (q)
48.418 AU (7.2432 Tm) (a)
Eccentricity 0.21598 (e)
336.91 yr (123057 d)
280.474° (M)
0° 0m 10.532s /day (n)
Inclination 14.02454° (i)
284.9951° (Ω)
340.527° (ω)
Earth MOID 36.9467 AU (5.52715 Tm)
Jupiter MOID 32.7018 AU (4.89212 Tm)
Physical characteristics
Dimensions 330[a]–740[b] km[3][4]
600 km[5]
0.08 to 0.4? (assumed range)
21.1 (2014-Feb-22)[2]
4.1 (JPL/MPC)[2][3]
4.3 (Brown)[5]

2013 FZ27, also written 2013 FZ27, is a trans-Neptunian object that, as of 2014, is located near the edge of the Kuiper belt.[3] Its discovery was announced on 2 April 2014.[1] It has an absolute magnitude (H) of 4.0,[3] which makes it likely to be a dwarf planet. Assuming an albedo of 0.15, it would be approximately 500 kilometres (310 mi) in diameter.[4]

2013 FZ27 will come to perihelion in September 2090,[c] at a distance of 37.98AU.[3] As of 2014, it is 49 AU from the Sun and has an apparent magnitude of 21.1.[1]

First detected on 16 March 2013, it had an observation arc of about one year when announced. It came to opposition in late February 2014.

Four precovery images, by Pan-STARRS from 21 February 2013, were quickly located.[2] Eight more precovery images, by Pan-STARRS from January and February 2011, have been located, extending the observation arc to 1151 days.[2] Later, three precovery observations by the Sloan Digital Sky Survey on February 20, 2001 were also found, giving it a well-defined 13-year (4782 day) observation arc.

The sednoid 2012 VP113 and the scattered-disc object 2013 FY27 were discovered by the same survey as 2013 FZ27 and were announced a few days before.

See also[edit]


  1. ^ Assuming an albedo of 0.4
  2. ^ Assuming an albedo of 0.08
  3. ^ The 1-sigma uncertainty in the year of perihelion passage is a bit more than a week.[3]


  1. ^ a b c "MPEC 2014-G07 : 2013 FZ27". IAU Minor Planet Center. 2014-04-02. Retrieved 2014-04-02.  (K13F27Z)
  2. ^ a b c d e "2013 FZ27 Orbit" (arc=4782 days over 4 oppositions). IAU Minor Planet Center. Retrieved 2015-05-04. 
  3. ^ a b c d e f g h "JPL Small-Body Database Browser: (2013 FZ27)" (last observation: 2014-03-26; arc: 13.09 years). Jet Propulsion Laboratory. Retrieved 3 April 2016. 
  4. ^ 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 2011-07-23. Retrieved 2014-04-06. 
  5. ^ a b Brown, Michael E. "How many dwarf planets are there in the outer solar system? (updates daily)". California Institute of Technology. Archived from the original on 2011-10-18. Retrieved 2014-04-18. 

External links[edit]