482 Petrina

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482 Petrina
Discovery
Discovered by Max Wolf
Discovery site Heidelberg
Discovery date 3 March 1902
Designations
1902 HT
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 111.53 yr (40737 d)
Aphelion 3.2971 AU (493.24 Gm)
Perihelion 2.7064 AU (404.87 Gm)
3.0017 AU (449.05 Gm)
Eccentricity 0.098396
5.20 yr (1899.6 d)
287.189°
0° 11m 22.272s / day
Inclination 14.474°
179.408°
86.737°
Earth MOID 1.74101 AU (260.451 Gm)
Jupiter MOID 1.86616 AU (279.174 Gm)
Jupiter Tisserand parameter 3.197
Physical characteristics
Mean radius
23.285±1.4 km
11.7922 h (0.49134 d)
0.2372±0.032
8.84

482 Petrina is a minor planet orbiting the Sun.

Attempts to produce a light curve for this object have yielded differing synodic rotation periods, perhaps in part because the period is close to half an Earth day. Observations suggest that the pole of rotation is near the orbital plane, yielding only small light variations during certain parts of each orbit. Attempts to observe the asteroid photometrically during an optimal viewing period of the object's orbit gave a rotation period of 11.7922 ± 0.0001 h with an amplitude variation of 0.53 ± 0.05 in magnitude.[2]

References[edit]

  1. ^ "482 Petrina (1902 HT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 6 May 2016. 
  2. ^ Hawkins, Scot; Ditteon, Richard (January 2014), "Asteroid Lightcurve Analysis at the Oakley Observatory - May 2007", Minor Planet Bulletin, 41 (1): 47–49, Bibcode:2014MPBu...41...47P. 

External links[edit]