(2221) Chilton

Asteroid (2221) Chilton
Properties of the orbit ( animation )
Orbit type	Middle main belt
Asteroid family	Maria family
Major semi-axis	2.591 AU
eccentricity	0.137
Perihelion - aphelion	2.236 AU - 2.946 AU
Inclination of the orbit plane	13.792 °
Length of the ascending node	245.827 °
Argument of the periapsis	81.986 °
Time of passage of the perihelion	February 22, 2018
Sidereal period	4.17 a
Physical Properties
Rotation period	7.445 h
Absolute brightness	12.9 mag
history
Explorer	Oak Ridge Observatory
Date of discovery	August 25, 1976
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(2221) Chilton is a main middle belt asteroid discovered on August 25, 1976 at the Oak Ridge Observatory of the Harvard-Smithsonian Centers for Astrophysicsin , Harvard, Massachusetts ( IAU code 801). The asteroid belongs to the Maria family, a group of asteroids named after (170) Maria .

designation

(2221) Chilton was named after Jean Chilton McCrosky , wife of the American astronomer at the Harvard-Smithsonian Centers for Astrophysics Richard Eugene McCrosky (after whom the asteroid (1880) McCrosky was named).

Web links

(2221) Chilton in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
(2221) Chilton in the Small-Body Database of the Jet Propulsion Laboratory .

Individual evidence

^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Fifth Revised and Enlarged Edition. Ed .: Lutz D. Schmadel. 5th edition. Springer Verlag , Berlin , Heidelberg 2003, ISBN 978-3-540-29925-7 , pp. 180 (English, 992 pp., Link.springer.com [ONLINE; accessed October 28, 2017] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “Named in honor of Jean Chilton McCrosky ”

[1] Lutz D. Schmadel : Dictionary of Minor Planet Names . Fifth Revised and Enlarged Edition. Ed .: Lutz D. Schmadel. 5th edition. Springer Verlag , Berlin , Heidelberg 2003, ISBN 978-3-540-29925-7 , pp. 180 (English, 992 pp., Link.springer.com [ONLINE; accessed October 28, 2017] Original title: Dictionary of Minor Planet Names . First edition: Springer Verlag, Berlin, Heidelberg 1992): “Named in honor of Jean Chilton McCrosky ”