440 Theodora

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440 Theodora
440Theodora (Lightcurve Inversion).png
A three-dimensional model of 440 Theodora based on its light curve.
Discovery
Discovered by E. F. Coddington
Discovery date 13 October 1898
Designations
1898 EC
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 117.50 yr (42917 d)
Aphelion 2.44735 AU (366.118 Gm)
Perihelion 1.97352 AU (295.234 Gm)
2.21043 AU (330.676 Gm)
Eccentricity 0.10718
3.29 yr (1200.4 d)
20.03 km/s
224.670°
0° 17m 59.669s / day
Inclination 1.59566°
292.133°
179.039°
Earth MOID 0.988623 AU (147.8959 Gm)
Jupiter MOID 2.63791 AU (394.626 Gm)
Jupiter Tisserand parameter 3.650
Physical characteristics
Dimensions 11 - 24 km
Mass unknown
Mean density
unknown
Equatorial surface gravity
unknown
Equatorial escape velocity
unknown
4.828 h (0.2012 d)
unknown
Temperature unknown
unknown
11.5

440 Theodora is a small Main belt asteroid.

It was discovered by E. F. Coddington on October 13, 1898 at Mount Hamilton. It was his second asteroid discovery.

References[edit]

External links[edit]