406 Erna

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406 Erna
406Erna (Lightcurve Inversion).png
A three-dimensional model of 406 Erna based on its light curve.
Discovery
Discovered by Auguste Charlois
Discovery date 22 August 1895
Designations
1895 CB
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 113.12 yr (41316 d)
Aphelion 3.44422 AU (515.248 Gm)
Perihelion 2.38409 AU (356.655 Gm)
2.91416 AU (435.952 Gm)
Eccentricity 0.18189
4.97 yr (1817.1 d)
17.45 km/s
89.6619°
0° 11m 53.243s / day
Inclination 4.19349°
315.767°
37.2158°
Earth MOID 1.37934 AU (206.346 Gm)
Jupiter MOID 1.99318 AU (298.175 Gm)
Jupiter Tisserand parameter 3.253
Physical characteristics
Dimensions 49.19±1.7 km
Mass unknown
Mean density
unknown
Equatorial surface gravity
unknown
Equatorial escape velocity
unknown
8.789 h (0.3662 d)
0.0524±0.004
Temperature unknown
P
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.

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