273 Atropos

273 Atropos
	Lightcurve-base 3D-model of 273 Atropos.
Discovery
Discovered by	Johann Palisa
Discovery date	8 March 1888
Designations
MPC designation	(273) Atropos
Pronunciation	/ˈætrəpɒs/
Named after	Atropos
Alternative designations	A888 EA, 1910 CC
Minor planet category	Main belt
Orbital characteristics
	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); 23.852 h
Geometric albedo	0.1624±0.015
Absolute magnitude (H)	10.26

Last updated November 13, 2025

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

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]

References

↑ Noah Webster (1884) A Practical Dictionary of the English Language
1 2 Yeomans, Donald K., "273 Atropos", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory , retrieved 11 May 2016.
1 2 Warner, Brian D. (December 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - March-May 2007", The Minor Planet Bulletin, vol. 34, no. 4, pp. 104–107, Bibcode:2007MPBu...34..104W.

External links

Lightcurve plot of 273 Atropos, Palmer Divide Observatory, B. D. Warner (2007)
Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine )
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
273 Atropos at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
273 Atropos at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

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[1] Noah Webster (1884) A Practical Dictionary of the English Language

[JPL-2] 1 2 Yeomans, Donald K., "273 Atropos", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory , retrieved 11 May 2016.

[Warner2007-3] 1 2 Warner, Brian D. (December 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - March-May 2007", The Minor Planet Bulletin, vol. 34, no. 4, pp. 104–107, Bibcode:2007MPBu...34..104W.

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