269 Justitia

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269 Justitia
Discovery A
Discoverer Johann Palisa
Discovery date September 21, 1887
Alternate
designations B		 1942 XY
Category Main belt
Orbital elements C
Epoch 30 January 2005 (JD 2453400.5)
Eccentricity (e) 0.212
Semi-major axis (a) 391.594 Gm (2.618 AU)
Perihelion (q) 308.57 Gm (2.063 AU)
Aphelion (Q) 474.618 Gm (3.173 AU)
Orbital period (P) 1546.878 d (4.24 a)
Mean orbital speed 18.41 km/s
Inclination (i) 5.478°
Longitude of the
ascending node (Ω)		 156.815°
Argument of
perihelion (ω)		 119.93°
Mean anomaly (M) 321.141°
Physical characteristics D
Dimensions 54.0 km
Mass unknown
Density unknown
Surface gravity unknown
Escape velocity unknown
Rotation period 16.545 h
Spectral class unknown
Absolute magnitude 9.5
Albedo (geometric) 0.097
Mean surface
temperature		 unknown
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269 Justitia is a fairly sizeable Main belt asteroid.

It was discovered by Johann Palisa on September 21, 1887 in Vienna.

The asteroid was named after Justitia, the Roman equivalent of Themis, the Greek goddess of justice (she also has an asteroid named after her, 24 Themis).

[edit] References

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