5208 Royer

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5208 Royer
SMASS = S [2][6]
12.5[4][6]
12.6[2]

5208 Royer (

rotation period of 3.87 hours and was named after American priest and amateur astronomer, Ronald Royer.[1][6]

Orbit and classification

Royer is a member of the

506),[3] a large family of stony asteroids with nearly 3,000 known members.[9]
: 23 

It orbits the Sun in the

semi-major axis of 2.6 AU). Its orbit has an eccentricity of 0.05 and an inclination of 16° with respect to the ecliptic.[2] The body's observation arc begins with a precovery taken at Palomar Observatory in November 1953, more than 35 years prior to its official discovery observation.[1]

Naming

This

M.P.C. 21957).[11]

Physical characteristics

In the

SMASS classification, Royer is a common, stony S-type asteroid.[2][6]

Rotation period and poles

In 2004, a rotational

U=2).[7] In 2016, a modeled lightcurves using photometric data from various sources, rendered a sidereal period of 3.88494 and two spin axes of (258.0°, 74.0°) and (54.0°, 37.0°) in ecliptic coordinates.[8]

Diameter and albedo

According to the survey carried out by the

albedo of 0.2854 and 0.270, respectively,[4][5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 9.40 kilometers based on an absolute magnitude of 12.5.[6]

References

  1. ^ a b c d e f "5208 Royer (1989 CH1)". Minor Planet Center. Retrieved 25 April 2018.
  2. ^ a b c d e f "JPL Small-Body Database Browser: 5208 Royer (1989 CH1)" (2018-02-24 last obs.). Jet Propulsion Laboratory. Retrieved 25 April 2018.
  3. ^ a b "Asteroid 5208 Royer – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
  4. ^
    doi:10.1088/0004-637X/741/2/90
    .
  5. ^
    doi:10.1088/0004-637X/741/2/68
    .
  6. ^ a b c d e f g "LCDB Data for (5208) Royer". Asteroid Lightcurve Database (LCDB). Retrieved 25 April 2018.
  7. ^
    doi:10.1016/j.icarus.2004.06.008
    .
  8. ^
    ISSN 0004-6361
    .
  9. ISBN 9780816532131
    .
  10. ^ "2001 G. Bruce Blair Award – Rev. Monsignor Ronald E. Royer". Western Amateur Astronomers. Archived from the original on 26 February 2012. Retrieved 25 April 2018.
  11. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 25 April 2018.

External links

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