2054 Gawain

Source: Wikipedia, the free encyclopedia.

2054 Gawain
Discovery 
Synodic rotation period
11.1098±0.0004 h[9]
11.5±0.1 h[10]
11.581±0.0194 h[11]
0.0444 (derived)[3]
0.06±0.04[4]
0.068±0.005[8]
0.0697±0.017[7]
0.073±0.008[5][6]
C [3]
12.00[5][8] · 12.5[1][3][4] · 12.507±0.010 (R)[11] · 12.53±0.34 (R)[10]

2054 Gawain, provisional designation 4097 P-L, is a dark and elongated asteroid from the outer regions of the asteroid belt, approximately 19 kilometers in diameter. Discovered during the Palomar–Leiden survey at Palomar Observatory in 1960, the asteroid was later named after Gawain, a knight of King Arthur's Round Table in the Arthurian legend.[2]

Discovery

Gawain was discovered on 24 September 1960, by Dutch astronomer couple

Cornelis van Houten, as well as Dutch–American astronomer Tom Gehrels from images taken at the Palomar Observatory near San Diego, California, in the United States.[12]

Palomar–Leiden survey

The

survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand asteroids.[13]

Orbit and classification

Gawain orbits the Sun in the outer main-belt at a distance of 2.7–3.3 AU once every 5 years and 1 month (1,865 days). Its orbit has an eccentricity of 0.10 and an inclination of 4° with respect to the ecliptic.[1]

The asteroid's observation arc begins 6 years prior to its official discovery observation, with a precovery taken at the discovering Palomar Observatory in July 1954.[12]

Physical characteristics

Gawain is an assumed carbonaceous C-type asteroid.[3]

Lightcurves

In October 2001, a first rotational

U=2).[10][11]
A high brightness amplitude typically indicates that the body has a non-spheroidal shape.

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite

albedo between 0.06 and 0.073.[4][5][6][7][8] The Collaborative Asteroid Lightcurve Link agrees with the results obtained by IRAS, and derives an albedo of 0.0444 and a diameter of 19.95 kilometers based on an absolute magnitude of 12.5.[3]

Naming

This

M.P.C. 6421).[14]

References

  1. ^ a b c d "JPL Small-Body Database Browser: 2054 Gawain (4097 P-L)" (2017-01-07 last obs.). Jet Propulsion Laboratory. Retrieved 6 July 2017.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f g "LCDB Data for (2054) Gawain". Asteroid Lightcurve Database (LCDB). Retrieved 6 July 2017.
  4. ^
    doi:10.1088/0004-637X/814/2/117
    . Retrieved 6 July 2017.
  5. ^
    doi:10.1088/0004-637X/741/2/90
    .
  6. ^
    doi:10.1088/0004-637X/741/2/68
    . Retrieved 6 July 2017.
  7. ^
    Bibcode:2004PDSS...12.....T
    . Retrieved 22 October 2019.
  8. ^
    doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153
    )
  9. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (2054) Gawain". Geneva Observatory. Retrieved 6 July 2017.
  10. ^
    doi:10.1088/0004-637X/788/1/17
    . Retrieved 6 July 2017.
  11. ^
    doi:10.1088/0004-6256/150/3/75
    . Retrieved 6 July 2017.
  12. ^ a b "2054 Gawain (4097 P-L)". Minor Planet Center. Retrieved 6 July 2017.
  13. ^ "Minor Planet Discoverers". Minor Planet Center. 11 June 2017. Retrieved 6 July 2017.
  14. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 6 July 2017.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=2054_Gawain&oldid=1191828821"