1473 Ounas

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1473 Ounas
Discovery
Synodic rotation period
16 h (dated)[3]
139.1±0.1 h[6]
139.1±0.5 h[7]
0.0841 (dated)[5]
0.110±0.018[4]
0.1189 (derived)[3]
S[3]
11.67±0.32[8] · 11.7[1][3] · 11.8[5]

1473 Ounas, provisional designation 1938 UT, is a stony

Turku Observatory in Southwest Finland.[9] The asteroid was named after the Finnish Ounas river.[2]

Classification and orbit

Ounas is a

precoveries were taken, and no previous identifications were made, the body's observation arc begins with its official discovery observation at Turku in 1938.[9]

Physical characteristics

In October 2012/13, a rotational

U=3/3).[6][7] Ounas is a suspected "tumbler", which have a non-principal axis rotation (NPAR).[6]

According to the survey carried out by NASA's

albedo of 0.11.[4][5] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1189 and a diameter of 17.62 kilometers with an absolute magnitude of 11.7.[3]

Naming

This

M.P.C. 3928).[10]

References

  1. ^ a b c d "JPL Small-Body Database Browser: 1473 Ounas (1938 UT)" (2016-11-05 last obs.). Jet Propulsion Laboratory. Retrieved 16 December 2016.
  2. ^
    ISBN 978-3-540-00238-3
    .
  3. ^ a b c d e f g "LCDB Data for (1473) Ounas". Asteroid Lightcurve Database (LCDB). Retrieved 16 December 2016.
  4. ^
    doi:10.1088/0004-637X/791/2/121
    . Retrieved 16 December 2016.
  5. ^
    doi:10.1088/0004-637X/741/2/90
    .
  6. ^
    ISSN 1052-8091
    . Retrieved 16 December 2016.
  7. ^ a b Behrend, Raoul. "Asteroids and comets rotation curves – (1473) Ounas". Geneva Observatory. Retrieved 16 December 2016.
  8. doi:10.1016/j.icarus.2015.08.007
    . Retrieved 16 December 2016.
  9. ^ a b "1473 Ounas (1938 UT)". Minor Planet Center. Retrieved 16 December 2016.
  10. ISBN 978-3-642-01964-7
    .

External links
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