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
MPC designation (406) Erna
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 22 August 1895 in Nice.

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