1855 Korolev

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1855 Korolev
Synodic rotation period
4.65±0.01 h[5]
4.656199±0.000001 h[6]
4.6568±0.0001 h[a]
4.66±0.01 h[7]
0.24 (assumed)[3]
0.319±0.032[4]
S[3]
12.70[4] · 12.8[1][3]

1855 Korolev (

Flora asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. Discovered in 1969, it was later named after Soviet rocket engineer Sergei Korolev.[2]

Discovery

Korolev was discovered by Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj on 8 October 1969.[8] On the same night, she also discovered 1856 Růžena.[2]

It was first identified as 1961 JD at Goethe Link Observatory in 1961, extending the body's observation arc by 8 years prior to its official discovery observation.[8]

Orbit and classification

The asteroid orbits the Sun in the inner main-belt at a distance of 2.1–2.4 AU once every 3 years and 4 months (1,231 days). Its orbit has an eccentricity of 0.08 and an inclination of 3° with respect to the ecliptic.[1]

Naming

This

M.P.C. 3825).[9]

Physical characteristics

Korolev is characterized as a common stony S-type asteroid.[3]

Diameter and albedo

According to the surveys carried out by NASA's space-based

albedo of 0.319,[4] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of its orbital family – and calculates a diameter of 7.47 kilometers with an absolute magnitude of 12.8.[3]

Rotation period

In March 2008, three rotational

U=n.a.).[6]

Notes

  1. ^ a b Lightcurve plot by Pravec (2008) with rotation period 4.6568±0.0001 hours with a brightness amplitude of 0.75 mag and a quality code of 3. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (1855) Korolev. Unpublished Ondrejov data obtained by the NEO Photometric Program and collaborating projects

References

  1. ^ a b c d "JPL Small-Body Database Browser: 1855 Korolev (1969 TU1)" (2017-02-04 last obs.). Jet Propulsion Laboratory. Retrieved 8 June 2017.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f g "LCDB Data for (1855) Korolev". Asteroid Lightcurve Database (LCDB). Retrieved 13 December 2016.
  4. ^
    doi:10.1088/2041-8205/759/1/L8
    . Retrieved 13 December 2016.
  5. ^
    ISSN 1052-8091
    . Retrieved 13 December 2016.
  6. ^
    doi:10.1051/0004-6361/201527573
    . Retrieved 13 December 2016.
  7. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1855) Korolev". Geneva Observatory. Retrieved 13 December 2016.
  8. ^ a b "1855 Korolev (1969 TU1)". Minor Planet Center. Retrieved 13 December 2016.
  9. ISBN 978-3-642-01964-7
    .

External links
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