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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.

Hephaistos
Discovery
Discovered byLyudmila Chernykh
Discovery siteCrimean Astrophysical Observatory
Discovery date27 September 1978
Designations
MPC designation(2212) Hephaistos
Named after
Hephaestus
1978 SB
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc41.13 yr (15022 days)
Aphelion3.96741328 AU (593.516579 Gm)
Perihelion0.35068065 AU (52.461079 Gm)
2.159046967 AU (322.9888290 Gm)
Eccentricity0.83757618
3.17 yr (1158.8 d)
272.0812839243940°
0° 18m 38.442s / day
Inclination11.5582329°
27.569039°
209.3347492572090°
Earth MOID0.116104 AU (17.3689 Gm)
Physical characteristics
Dimensions6.64 km[2]
Mean radius
2.85 km
20 h (0.83 d)[1]
SG[1]
13.87[1]

ReferencesEdit

  1. ^ a b c d "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 linksEdit