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299 Thora

From Wikipedia, the free encyclopedia

299 Thora
Orbital diagram
Discovery
Discovered byJohann Palisa
Discovery date6 October 1890
Designations
(299) Thora
Named after
Thor
A890 TA, 1935 PC
1939 PK
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc83.21 yr (30393 d)
Aphelion2.58 AU (386.69 Gm)
Perihelion2.28 AU (341.48 Gm)
2.43 AU (364.09 Gm)
Eccentricity0.062093
3.80 yr (1,386.8 d)
40.9107°
0° 15m 34.52s / day
Inclination1.60383°
241.531°
150.672°
Physical characteristics
Dimensions17.06±1.5 km[1]
274 h (11.4 d)[1]
0.1673±0.033[1]
11.3[1]

Thora (minor planet designation: 299 Thora) is a 17 km Main belt asteroid with a potentially long 274-hour rotation period.[1] It was discovered by Johann Palisa on 6 October 1890 in Vienna.

This object has a very low rate of spin, requiring 11.37 ± 0.04 days (272.9 ± 0.9 h) to complete a full rotation.[2]

References

  1. ^ a b c d e f "JPL Small-Body Database Browser". JPL. Retrieved 11 May 2016.
  2. ^ Pilcher, Frederick; et al. (July 2017). "299 Thora and 496 Gryphia: Two More Very Slowly Rotating Asteroids". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 44 (3): 270–274. Bibcode:2017MPBu...44..270P.

External links


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This page was last edited on 25 December 2023, at 14:44
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