428 Monachia

428 Monachia

Discovery
Discovered by	Walther Villiger
Discovery date	November 18, 1897
Designations
Named after	Munich
Alternative names	1897 DK; 1946 UL; 1949 OE; 1953 TN3; 1974 XU
Minor planet category	Main belt (Flora family)
Orbital characteristics
Epoch 30 January 2005 (JD 2453400.5)
Aphelion	407.004 Gm (2.721 AU)
Perihelion	283.364 Gm (1.894 AU)
Semi-major axis	345.184 Gm (2.307 AU)
Eccentricity	0.179
Orbital period	1280.202 d (3.51 a)
Average orbital speed	19.61 km/s
Mean anomaly	226.711°
Inclination	6.2°
Longitude of ascending node	17.76°
Argument of perihelion	15.598°
Physical characteristics
Dimensions	18 km[1]
Mass	unknown
Mean density	unknown
Surface gravity	unknown
Escape velocity	unknown
Rotation period	0.151 d (3.634 h) [2]
Albedo	0.114[1]
Temperature	unknown
Spectral type	unknown
Absolute magnitude (H)	11.5

428 Monachia is an asteroid orbiting within the Flora family in the Main Belt.

It was discovered by Walther Villiger on November 18, 1897 in Munich, Germany. It was his only asteroid discovery. The asteroid's name comes from the Latin name for Munich.^[3]

References

1. Supplemental IRAS Minor Planet Survey
2. PDS lightcurve data
3. Lutz D. Schmadel, Dictionary of Minor Planet Names: Addendum to Fifth Edition: 2006 - 2008.

External links

• 428 Monachia at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters