2478 Tokai

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2478 Tokai
Discovery 
SMASS = S [1] · S [3]
11.88±0.03 (R)[b] · 12.00[7] · 12.15±0.04[13] · 12.2[1] · 12.33[9] · 12.37±0.058[3][10] · 12.80[8]

2478 Tokai, provisionally designated 1981 JC, is a stony Florian

879), Japan.[14] The asteroid was named after the city of Tōkai.[2]

Orbit and classification

Tokai 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 2.1–2.4 AU once every 3 years and 4 months (1,213 days). Its orbit has an eccentricity of 0.07 and an inclination of 4° with respect to the ecliptic.[1]

Physical characteristics

In the

SMASS classification, Tokai is a common S-type asteroid.[1]

Diameter and albedo

According to the surveys carried out by the Japanese

albedo between 0.144 and 0.33.[6][7][8][9] The Collaborative Asteroid Lightcurve Link agrees with Petr Pravec's revised WISE-data, that is, an albedo of 0.1957 and a diameter of 10.09 kilometers with an absolute magnitude of 12.37.[3]

Satellite

Photometric observations in 2007, revealed a minor-planet moon in orbit of Tokai. It measures approximately 6 kilometers in diameter (lower limit diameter ratio of 0.72) and has an orbital period of 25.88 hours.[3][4][5]

Naming

This

M.P.C. 6650).[15]

Notes

  1. ^ Oey (2011) web: rotation period 25.88 hours with a brightness amplitude of mag. Summary figures for (2478) Tokai at Collaborative Asteroid Lightcurve Link (CALL)
  2. ^ a b Pravec (2007) web: rotation period 25.8913 hours with a brightness amplitude of 0.41 mag. Q=3. Summary figures for (2478) Tokai at Collaborative Asteroid Lightcurve Link (CALL)

References

  1. ^ a b c d e f "JPL Small-Body Database Browser: 2478 Tokai (1981 JC)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Archived from the original on 24 July 2020. Retrieved 18 June 2017.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f g "LCDB Data for (2478) Tokai". Asteroid Lightcurve Database (LCDB). Retrieved 18 June 2017.
  4. ^ a b "Electronic Telegram No. 824". IAU Central Bureau for Astronomical Telegrams. 30 January 2007. Retrieved 5 July 2011.
  5. ^ a b Johnston, Robert (21 September 2014). "(2478) Tokai". johnstonsarchive.net. Retrieved 18 June 2017.
  6. ^
    doi:10.1088/0004-637X/791/2/121
    . Retrieved 18 June 2017.
  7. ^
    doi:10.1088/0004-637X/814/2/117
    . Retrieved 19 June 2017.
  8. ^
    doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153
    )
  9. ^
    doi:10.1088/0004-637X/741/2/90
    .
  10. ^
    doi:10.1016/j.icarus.2012.07.026
    . Retrieved 19 June 2017.
  11. Bibcode:2007CBET..824....1H
    . Retrieved 19 June 2017.
  12. ISSN 1052-8091
    . Retrieved 19 June 2017.
  13. doi:10.1016/j.icarus.2015.08.007
    . Retrieved 19 June 2017.
  14. ^ "2478 Tokai (1981 JC)". Minor Planet Center. Retrieved 18 June 2017.
  15. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 18 June 2017.

External links

Retrieved from "https://en.wikipedia.org/w/index.php?title=2478_Tokai&oldid=1191632831"