4176 Sudek

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4176 Sudek
Discovery 
Synodic rotation period
8.164±0.0092 h[10]
0.08 (assumed)[4]
0.095±0.019[8]
0.095±0.033[7][9]
0.097±0.009[6]
0.12±0.11[5]
C (assumed)[4]
11.8[9]
11.90[5][6][7]
11.909±0.002 (R)[10]
12.0[2]
12.19±0.18[11]
12.36[4]

4176 Sudek, provisional designation 1987 DS, is a Themistian

rotation period of 8.16 hours.[4] It was named in memory of Czech photographer Josef Sudek.[1]

Orbit and classification

Sudek is a Themistian asteroid that belongs to the

602),[4][3] a very large family of carbonaceous asteroids, named after 24 Themis.[12]

It orbits the

semi-major axis of 3.1 AU). Its orbit has an eccentricity of 0.14 and an inclination of 3° with respect to the ecliptic.[2] The asteroid was first observed as 1949 FF1 at Simeiz Observatory in March 1949. The body's observation arc begins with its observation as 1952 VC at Goethe Link Observatory in November 1952.[1]

Occultation

On 21 January 2014 Sudek, at magnitude 15.5,

occulted the star 2UCAC 39655315 in the constellation Gemini during which the magnitude dropped from 11.8 (star) to 15.5 (asteroid). This event was visible over parts of Japan and China.[13]

Physical characteristics

Sudek is an assumed carbonaceous

spectral type.[12]
: 23 

Rotation period

In September 2012, a rotational

U=2).[10]

Diameter and albedo

According to the surveys carried out by the Japanese

albedo between 0.095 and 0.12.[5][6][7][8][9]

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.08 and calculates a diameter of 15.86 kilometers based on an absolute magnitude of 12.36.[4]

Naming

Based on a proposal by

M.P.C. 31295).[14]

References

  1. ^ a b c d e f g "4176 Sudek (1987 DS)". Minor Planet Center. Retrieved 27 April 2018.
  2. ^ a b c d "JPL Small-Body Database Browser: 4176 Sudek (1987 DS)" (2017-11-02 last obs.). Jet Propulsion Laboratory. Archived from the original on 16 September 2020. Retrieved 27 April 2018.
  3. ^ a b "Asteroid 4176 Sudek – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 27 October 2019.
  4. ^ a b c d e f g h i "LCDB Data for (4176) Sudek". Asteroid Lightcurve Database (LCDB). Retrieved 27 April 2018.
  5. ^
    doi:10.1088/0004-637X/814/2/117
    .
  6. ^
    doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153
    )
  7. ^
    doi:10.1088/2041-8205/759/1/L8
    .
  8. ^
    doi:10.1088/0004-637X/741/2/68
    .
  9. ^
    doi:10.1088/0004-637X/741/2/90
    .
  10. ^
    doi:10.1088/0004-6256/150/3/75
    .
  11. doi:10.1016/j.icarus.2015.08.007
    .
  12. ^
    ISBN 9780816532131
    .
  13. ^ Preston, Steve. "(4176) Sudek – asteroid occultation". www.asteroidoccultation.com. Archived from the original on 1 February 2014.
  14. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 27 April 2018.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=4176_Sudek&oldid=1191825441"