254 Augusta

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254 Augusta
Discovery A
Discoverer Johann Palisa
Discovery date March 31, 1886
Alternate
designations B		 n/a
Category Main belt (Augusta)
Orbital elements C
Epoch 30 January 2005 (JD 2453400.5)
Eccentricity (e) 0.121
Semi-major axis (a) 328.352 Gm (2.195 AU)
Perihelion (q) 288.533 Gm (1.929 AU)
Aphelion (Q) 368.171 Gm (2.461 AU)
Orbital period (P) 1187.714 d (3.25 a)
Mean orbital speed 20.1 km/s
Inclination (i) 4.515°
Longitude of the
ascending node (Ω)		 28.545°
Argument of
perihelion (ω)		 233.227°
Mean anomaly (M) 147.782°
Physical characteristics D
Dimensions 12.0 km
Mass unknown
Density unknown
Surface gravity unknown
Escape velocity unknown
Rotation period 6.0 h
Spectral class S
Absolute magnitude 12.13
Albedo (geometric) 0.170
Mean surface
temperature		 unknown
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254 Augusta is a typical small Main belt asteroid. It is an S-type asteroid. The Augusta family of asteroids is named after it as it is the first-numbered member of the family.

It was discovered by Johann Palisa on March 31, 1886 in Vienna.

Augusta was named after the widow of astronomer Carl Ludwig von Littrow.

[edit] References

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