2212 Hephaistos

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Hephaistos
Discovery
Discovered by Lyudmila Chernykh
Discovery site Crimean Astrophysical Observatory
Discovery date 27 September 1978
Designations
MPC designation 2212
Named after
Hephaestus
1978 SB
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 41.13 yr (15022 days)
Aphelion 3.96741328 AU (593.516579 Gm)
Perihelion 0.35068065 AU (52.461079 Gm)
2.159046967 AU (322.9888290 Gm)
Eccentricity 0.83757618
3.17 yr (1158.8 d)
272.0812839243940°
0° 18m 38.442s / day
Inclination 11.5582329°
27.569039°
209.3347492572090°
Earth MOID 0.116104 AU (17.3689 Gm)
Jupiter MOID 1.15792 AU (173.222 Gm)
Jupiter Tisserand parameter 3.100
Physical characteristics
Dimensions 6.64 km[2]
Mean radius
2.85 km
20 h (0.83 d)
SG[1]
13.87[1]

2212 Hephaistos (1978 SB) is an Apollo asteroid and a NEO discovered on September 27, 1978 by L. I. Chernykh at the Crimean Astrophysical Observatory. It is named after the Greek god Hephaestus. It is the largest member of the Hephaistos asteroid group.

References[edit]

  1. ^ a b c "2212 Hephaistos (1978 SB)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 15 April 2016. 
  2. ^ "NEODyS 2012 Hephaistos". Near Earth Objects - Dynamic Site. Retrieved 2014-03-18. 

External links[edit]