272 Antonia

272 Antonia
	A three-dimensional model of 272 Antonia based on its light curve
Discovery
Discovered by	Auguste Charlois
Discovery date	4 February 1888
Designations
MPC designation	(272) Antonia
Pronunciation	/ænˈtoʊniə/
Minor planet category	Main belt
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	97.35 yr (35557 d)
Aphelion	2.8529 AU (426.79 Gm)
Perihelion	2.70319 AU (404.391 Gm)
Semi-major axis	2.77805 AU (415.590 Gm)
Eccentricity	0.026945
Orbital period (sidereal)	4.63 yr (1691.2 d)
Mean anomaly	307.768°
Mean motion	0° 12m 46.296s / day
Inclination	4.4396°
Longitude of ascending node	37.408°
Argument of perihelion	64.248°
Physical characteristics
Dimensions	25.35±1.4 km
Synodic rotation period	3.8548 h (0.16062 d)
Geometric albedo	0.1443±0.017
Absolute magnitude (H)	10.7

Antonia (minor planet designation: 272 Antonia) is a main belt asteroid that was discovered by French astronomer Auguste Charlois on 4 February 1888 in Nice.

Photometric observations of this asteroid made during 2008 at the Organ Mesa Observatory in Las Cruces, New Mexico, gave a light curve with a short rotation period of 3.8548 ± 0.0001 hours and a brightness variation of 0.43 ± 0.04 in magnitude.^[3]

References[]

^ Noah Webster (1884) A Practical Dictionary of the English Language
^ ^a ^b Yeomans, Donald K., "272 Antonia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 11 May 2016.
^ ^a ^b Pilcher, Frederick (September 2008), "Period Determinations for 26 Proserpina, 34 Circe 74 Galatea, 143 Adria, 272 Antonia, 419 Aurelia, and 557 Violetta", The Minor Planet Bulletin, vol. 35, no. 3, pp. 135–138, Bibcode:2008MPBu...35..135P.

External links[]

272 Antonia at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
272 Antonia at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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

[JPL-2] Yeomans, Donald K., "272 Antonia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 11 May 2016.

[Pilcher2008-3] Pilcher, Frederick (September 2008), "Period Determinations for 26 Proserpina, 34 Circe 74 Galatea, 143 Adria, 272 Antonia, 419 Aurelia, and 557 Violetta", The Minor Planet Bulletin, vol. 35, no. 3, pp. 135–138, Bibcode:2008MPBu...35..135P.

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