273 Atropos

273 Atropos is a typical Main belt asteroid that was discovered by Austrian astronomer Johann Palisa on 8 March 1888 in Vienna.

273 Atropos

Orbital diagram
Discovery
Discovered by	Johann Palisa
Discovery date	8 March 1888
Designations
MPC designation	(273) Atropos
Pronunciation	/ˈætrəpɒs/[1]
Named after	Atropos
Alternative designations	A888 EA, 1910 CC
Minor planet category	Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	105.94 yr (38695 d)
Aphelion	2.7792 AU (415.76 Gm)
Perihelion	2.01097 AU (300.837 Gm)
Semi-major axis	2.39507 AU (358.297 Gm)
Eccentricity	0.16037
Orbital period (sidereal)	3.71 yr (1353.9 d)
Mean anomaly	127.80°
Mean motion	0° 15m 57.276s / day
Inclination	20.454°
Longitude of ascending node	158.957°
Argument of perihelion	121.16°
Physical characteristics
Dimensions	29.27±1.3 km
Synodic rotation period	23.924 h (0.9968 d)[2] 23.852 h[3]
Geometric albedo	0.1624±0.015
Absolute magnitude (H)	10.26

Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado, in 2007 gave a light curve with a period of 23.852 ± 0.003 hours and a brightness variation of 0.60 ± 0.03 in magnitude.^[3]