6805 Abstracta

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6805 Abstracta
Discovery 
Synodic rotation period
152.1834±0.8953 h[7]
0.08 (assumed)[4]
0.087±0.026[5][6]
C [4]
13.0[1] · 12.9[5] · 13.74[4] · 13.286±0.009 (R)[7]

6805 Abstracta, provisional designation 4600 P-L, is a carbonaceous Themistian

slow rotator from the outer region of the asteroid belt
, approximately 10 kilometers in diameter.

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

Astronomy and Astrophysics Abstracts.[3]

Orbit and classification

Abstracta is a member of the Themis family, a dynamical family of outer-belt asteroids with nearly coplanar ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.7–3.7 AU once every 5 years and 8 months (2,080 days). Its orbit has an eccentricity of 0.16 and an inclination of 2° with respect to the ecliptic.[1] The first precovery was taken at Palomar Observatory in 1949, extending the asteroid's observation arc by 11 years prior to its discovery.[8]

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. The trio are credited with the discovery of several thousand minor planets.[9]

Physical characteristics

Lightcurve

A rotational

U=2).[7]

Diameter and albedo

According to the

albedo of 0.09.[5][6] The Collaborative Asteroid Lightcurve Link assumes a typical albedo for carbonaceous asteroids of 0.08 and calculates a somewhat smaller diameter of 8.4 kilometers with an absolute magnitude of 13.74.[4]

Naming

This minor planet was named for the astronomical bibliography Astronomy and Astrophysics Abstracts (AAA).[3]

Since it was founded under the auspices of the

M.P.C. 27331).[10]

References

  1. ^ a b c d "JPL Small-Body Database Browser: 6805 Abstracta (4600 P-L)" (2016-11-23 last obs.). Jet Propulsion Laboratory. Archived from the original on 18 September 2020. Retrieved 21 June 2017.
  2. ^ per "abstractable". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  3. ^
    ISBN 978-3-540-00238-3
    .
  4. ^ a b c d e f "LCDB Data for (6805) Abstracta". Asteroid Lightcurve Database (LCDB). Retrieved 27 April 2016.
  5. ^
    doi:10.1088/0004-637X/741/2/90
    . Retrieved 27 April 2016.
  6. ^
    doi:10.1088/0004-637X/741/2/68
    . Retrieved 5 December 2016.
  7. ^
    doi:10.1088/0004-6256/150/3/75
    . Retrieved 27 April 2016.
  8. ^ a b "6805 Abstracta (4600 P-L)". Minor Planet Center. Retrieved 27 April 2016.
  9. ^ "Minor Planet Discoverers". Minor Planet Center. 24 April 2016. Retrieved 13 January 2016.
  10. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 27 April 2016.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=6805_Abstracta&oldid=1191632679"