5208 Royer

5208 Royer
Shape model of Royer from its lightcurve
Discovery [1]
Discovered byE. F. Helin
Discovery sitePalomar Obs.
Discovery date6 February 1989
Designations
(5208) Royer
Named after
Msgr Ronald E. Royer [1]
(American priest and
amateur astronomer)
1989 CH1
main-belt [1][2] · (middle)
Maria [3]
Orbital characteristics [2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc64.29 yr (23,481 d)
Aphelion2.7241 AU
Perihelion2.4844 AU
2.6042 AU
Eccentricity0.0460
4.20 yr (1,535 d)
345.72°
0° 14m 4.2s / day
Inclination15.904°
124.56°
21.407°
Physical characteristics
7.884±0.150 km[4]
8.081±0.121 km[5]
9.40 km (calculated)[6]
3.866 h[7]
3.88494±0.00005 h[8]
0.20 (assumed)[6]
0.270±0.059[5]
0.2854±0.0197[4]
SMASS = S [2][6]
12.5[4][6]
12.6[2]

5208 Royer (prov. designation: 1989 CH1) is a stony Marian asteroid from the central regions of the asteroid belt, approximately 8 kilometers (5 miles) in diameter. It was discovered on 6 February 1989, by astronomer Eleanor Helin at the Palomar Observatory. The S-type asteroid has a rotation period of 3.87 hours and was named after American priest and amateur astronomer, Ronald Royer.[1][6]

  1. ^ a b c d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference jpldata was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  6. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Alvarez-2004 was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Hanus-2016a was invoked but never defined (see the help page).