274 Philagoria

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274 Philagoria
Discovery A
Discoverer Johann Palisa
Discovery date April 3, 1888
Alternate
designations
B
Category Main belt
Orbital elements C
Epoch 30 January 2005 (JD 2453400.5)
Eccentricity (e) 0.126
Semi-major axis (a) 455.153 Gm (3.043 AU)
Perihelion (q) 397.694 Gm (2.658 AU)
Aphelion (Q) 512.612 Gm (3.427 AU)
Orbital period (P) 1938.375 d (5.31 a)
Mean orbital speed 17.08 km/s
Inclination (i) 3.681°
Longitude of the
ascending node
(Ω)
92.906°
Argument of
perihelion
(ω)
120.37°
Mean anomaly (M) 344.327°
Physical characteristics D
Dimensions 27.0 km
Mass unknown
Density unknown
Surface gravity unknown
Escape velocity unknown
Rotation period 17.915 hours
Spectral class L
Absolute magnitude 10.08
Albedo (geometric) 0.228 ±0.047
Mean surface
temperature
unknown
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274 Philagoria is a typical Main belt asteroid.

It was discovered by Johann Palisa on April 3, 1888 in Vienna.