228 Agathe

228 Agathe

Discovery
Discovered by	Johann Palisa
Discovery date	August 19, 1882
Designations
Alternate name(s)	n/a
Minor planet category	Main belt
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	409.011 Gm (2.734 AU)
Perihelion	249.578 Gm (1.668 AU)
Semi-major axis	329.294 Gm (2.201 AU)
Eccentricity	0.242
Orbital period	1192.83 d (3.27 a)
Average orbital speed	20.08 km/s
Mean anomaly	172.307°
Inclination	2.541°
Longitude of ascending node	313.532°
Argument of perihelion	18.609°
Proper orbital elements
Physical characteristics
Dimensions	9.0 km
Mass	unknown
Mean density	unknown
Equatorial surface gravity	unknown
Escape velocity	unknown
Rotation period	unknown
Albedo	unknown
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	12.48

228 Agathe is a small main belt asteroid.

It was discovered by Johann Palisa on August 19, 1882 in Vienna.

References

• The Asteroid Orbital Elements Database
• Minor Planet Discovery Circumstances