52975 Cyllarus

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Cyllarus
Cyllarus-Keck-Nov2009-mag23.gif
Cyllarus (apmag 23) as seen at Keck
Discovery[1]
Discovered by N. Danzl
Discovery site Kitt Peak
Discovery date 12 October 1998
Designations
MPC designation 52975
Named after
Cyllarus
1998 TF35
Centaur[1][2]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc 3636 days (9.95 yr)
Aphelion 36.07929973834370 AU (5.3973864172032 Tm)
Perihelion 16.32367059606950 AU (2.4419863631801 Tm)
26.20148516721 AU (3.919686390192 Tm)
Eccentricity 0.3769944531045140
134.12 yr (48987.7 d)
70.74847155648840°
0° 0m 26.456s / day
Inclination 12.64473298051520°
52.02446443692790°
301.3174024880230°
Earth MOID 15.336 AU (2.2942 Tm)
Jupiter MOID 11.4497 AU (1.71285 Tm)
Jupiter Tisserand parameter 4.255
Physical characteristics
Dimensions ~70 km (assumed)[3]
0.07 (assumed)[3]
23.1[4]
9.4[1]

52975 Cyllarus /ˈsɪlərəs/, provisionally known as 1998 TF35, is a centaur discovered on October 12, 1998, by Nichole Danzl at the Kitt Peak Observatory near Sells, Arizona in the United States. It is named for the centaur Cyllarus of Greek mythology.

In November 2009, Mike Brown and his team using the Keck telescope took a spectrum of Cyllarus (apparent magnitude 23), giving it "the record for the faintest spectrum of a Kuiper belt object".

Cyllarus came to perihelion in September 1989.[1]

References[edit]

  1. ^ a b c d e "JPL Small-Body Database Browser: 52975 Cyllarus (1998 TF35)" (2008-09-25 last obs). Retrieved 12 April 2016. 
  2. ^ Marc W. Buie. "Orbit Fit and Astrometric record for 52975" (2008-09-25 using 29 observations). SwRI (Space Science Department). Retrieved 2009-11-22. 
  3. ^ a b assumed to have a typical centaur albedo
  4. ^ "AstDys (52975) Cyllarus Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2009-11-22. 

External links[edit]