406 Erna

406 Erna
Discovery
A three-dimensional model of 406 Erna based on its light curve.
Discovered by	Auguste Charlois
Discovery date	August 22, 1895
Designations
Alternative names	1895 CB
Minor planet category	Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	515.605 Gm (3.447 AU)
Perihelion	356.339 Gm (2.382 AU)
Semi-major axis	435.972 Gm (2.914 AU)
Eccentricity	0.183
Orbital period	1817.147 d (4.98 a)
Average orbital speed	17.45 km/s
Mean anomaly	336.544°
Inclination	4.198°
Longitude of ascending node	315.863°
Argument of perihelion	38.107°
Physical characteristics
Dimensions	49.0 km
Mass	unknown
Mean density	unknown
Surface gravity	unknown
Escape velocity	unknown
Rotation period	unknown
Albedo	unknown
Temperature	unknown
Spectral type	P
Absolute magnitude (H)	10.36

406 Erna is a typical Main belt asteroid. It is classified as a P-type asteroid and is probably composed of primitive carbonaceous chondritic materials.

It was discovered by Auguste Charlois on August 22, 1895 in Nice.

External links

406 Erna at the JPL Small-Body Database

Discovery · Orbit diagram · Orbital elements · Physical parameters

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