1991 Darwin

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1991 Darwin
Discovery
Synodic rotation period
4.7±0.2 h[9]
0.16±0.06[8]
0.2541[6]
0.258±0.078[4][5]
0.28±0.15[7]
S[3]
13.20±0.32[10] · 13.4[1][7] · 13.6[4][3] · 13.60±0.07[6][9] · 13.86[8]

1991 Darwin, provisional designation 1967 JL, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 5 kilometers in diameter.

It was discovered on 6 May 1967, by Argentine astronomers

Arnold Klemola at the El Leoncito's Yale–Columbia Southern Station of the Félix Aguilar Observatory in Argentina.[11] It was named for both George and Charles Darwin.[2]

Classification and orbit

Darwin is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,232 days). Its orbit has an eccentricity of 0.21 and an inclination of 6° with respect to the ecliptic.[1]

It was first observed as 1954 UG at Goethe Link Observatory in 1954, extending the body's observation arc by 13 years prior to its official discovery observation at El Lenoncito.[11]

Physical characteristics

Darwin has been characterized as a common stony S-type asteroid based on its classification to the Flora family.[3]

Rotation period

In September 1991, a rotational

U=2).[9]

Diameter and albedo

According to the surveys carried out by the Japanese

albedo between 0.16 and 0.28.[4][5][7][8]

The Collaborative Asteroid Lightcurve Link adopts Pravec's revised WISE data, that is, an albedo of 0.2541 and a diameter of 5.02 kilometers with an absolute magnitude of 13.6.[3][6]

Naming

This minor planet was named in memory of English naturalist Charles Darwin (1809–1882), the first to establish the theory of biological evolution. While on research in Argentina, he crossed the Andes relatively near to the Leoncito Astronomical Complex where the minor planet was discovered.[2]

The asteroid also honors

M.P.C. 5282).[12]

References

  1. ^ a b c d "JPL Small-Body Database Browser: 1991 Darwin (1967 JL)" (2017-03-30 last obs.). Jet Propulsion Laboratory. Retrieved 10 June 2017.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f "LCDB Data for (1991) Darwin". Asteroid Lightcurve Database (LCDB). Retrieved 8 December 2016.
  4. ^
    S2CID 35447010
    .
  5. ^
    S2CID 118745497
    . Retrieved 8 December 2016.
  6. ^
    doi:10.1016/j.icarus.2012.07.026
    . Retrieved 8 December 2016.
  7. ^
    S2CID 9341381
    . Retrieved 10 June 2017.
  8. ^
    doi:10.3847/0004-6256/152/3/63
    .
  9. ^
    Bibcode:1995LPI....26.1511W
    . Retrieved 8 December 2016.
  10. S2CID 53493339
    . Retrieved 8 December 2016.
  11. ^ a b "1991 Darwin (1967 JL)". Minor Planet Center. Retrieved 8 December 2016.
  12. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 8 December 2016.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=1991_Darwin&oldid=1191811192"