2058 Róka

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2058 Róka
Discovery 
Synodic rotation period
10.04±0.02 h[8]
10.09±0.01 h[9]
0.0995 (derived)[3]
0.1196±0.0252[7]
0.121±0.017[6]
0.130±0.006[5]
0.1542±0.056[4]
C[10] · S[3]
11.0[4][5][7] · 11.5[1][3] · 11.56±0.34[10]

2058 Róka, provisional designation 1938 BH, is a Themistian asteroid from the outer regions of the asteroid belt, approximately 22 kilometers in diameter.

It was discovered on 22 January 1938, by Hungarian György Kulin at Konkoly Observatory in Budapest, Hungary.[11] The asteroid was named in memory of Hungarian science writer Gedeon Róka.[2]

Classification and orbit

Róka is a member of the Themis family, a dynamical family of carbonaceous outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun at a distance of 2.7–3.6 AU once every 5 years and 6 months (2,016 days). Its orbit has an eccentricity of 0.15 and an inclination of 3° with respect to the ecliptic.[1] The body's observation arc begins with its official discovery observation at Konkoly in 1938.[11]

Physical characteristics

Róka has been characterized as a carbonaceous C-type asteroid by Pan-STARRS photometric survey.[10] Due to its ambivalent albedo it is also an assumed S-type asteroid.[3]

Lightcurves

In March 2005, a rotational

U=2).[9]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite

albedo between 0.1196 and 0.1542.[4][5][6][7] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0995 and calculates a diameter of 21.12 kilometers based on an absolute magnitude of 11.5.[3]

Naming

This

M.P.C. 5183).[12]

References

  1. ^ a b c d "JPL Small-Body Database Browser: 2058 Roka (1938 BH)" (2017-03-28 last obs.). Jet Propulsion Laboratory. Retrieved 29 June 2017.
  2. ^ .
  3. ^ a b c d e f g "LCDB Data for (2058) Róka". Asteroid Lightcurve Database (LCDB). Retrieved 29 June 2017.
  4. ^ . Retrieved 22 October 2019.
  5. ^ )
  6. ^ . Retrieved 29 June 2017.
  7. ^ .
  8. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (2058) Róka". Geneva Observatory. Retrieved 29 June 2017.
  9. ^
    ISSN 1052-8091
    . Retrieved 29 June 2017.
  10. ^ . Retrieved 29 June 2017.
  11. ^ a b "2058 Roka (1938 BH)". Minor Planet Center. Retrieved 29 June 2017.
  12. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 29 June 2017.

External links