427 Galene

427 Galene
Discovery
Discovered by	Auguste Charlois
Discovery date	27 August 1897
Designations
MPC designation	(427) Galene
Alternative designations	1897 DJ
Minor planet category	Main belt
Orbital characteristics^[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	110.93 yr (40519 d)
Aphelion	3.32976 AU (498.125 Gm)
Perihelion	2.61263 AU (390.844 Gm)
Semi-major axis	2.97119 AU (444.484 Gm)
Eccentricity	0.12068
Orbital period	5.12 yr (1870.7 d)
Average orbital speed	17.27 km/s
Mean anomaly	90.0900°
Mean motion	0° 11^m 32.806^s / day
Inclination	5.12388°
Longitude of ascending node	297.424°
Argument of perihelion	12.2909°
Earth MOID	1.59784 AU (239.033 Gm)
Jupiter MOID	1.90436 AU (284.888 Gm)
Jupiter Tisserand parameter	3.246
Physical characteristics
Dimensions	7004299800000000000♠29.98±1.2 km
Mass	unknown
Mean density	unknown
Equatorial surface gravity	unknown
Equatorial escape velocity	unknown
Rotation period	3.705 h (0.1544 d)
Geometric albedo	6999236400000000000♠0.2364±0.020
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	10.2

427 Galene is a typical Main belt asteroid.

The asteroid was discovered by Auguste Charlois on 27 August 1897 in Nice.

It was named after one of the Nereids of Greek Mythology (Hesiod, Theogony, 240)

References

Minor planets navigator
426 Hippo 427 Galene 428 Monachia

Designation Groups List Moon Meanings of names
Asteroid	Aten asteroid Asteroid belt Family Jupiter trojan Near-Earth Spectral types
Distant minor planet	Centaur Damocloid Neptune trojan Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc

Other

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