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4332 Milton

Background asteroid

Field	Value
minorplanet	yes
name	4332 Milton
background	#D6D6D6
discovery_ref
discoverer	C. Shoemaker
discovery_site	Palomar Obs.
discovered	5 September 1983
mpc_name	(4332) Milton
alt_names	1983 RC

named_after	Daniel J. Milton
(American astrogeologist)
mp_category	main-belt(middle)
background
orbit_ref
epoch	23 March 2018 (JD 2458200.5)
uncertainty	0
observation_arc	84.44 yr (30,841 d)
aphelion	3.3990 AU
perihelion	1.7701 AU
semimajor	2.5846 AU
eccentricity	0.3151
period	4.16 yr (1,518 d)
mean_anomaly	107.91°
mean_motion	/ day
inclination	19.169°
asc_node	166.00°
arg_peri	198.38°
mean_diameter	(derived)

rotation

albedo
(derived)

spectral_type	SMASS XeC
abs_magnitude	11.9
12.7
12.73
12.8

(American astrogeologist) background

(derived)

12.7 12.73 12.8

4332 Milton, provisional designation , is a background asteroid from the central regions of the asteroid belt, approximately 11 km in diameter. It was discovered on 5 September 1983, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California. The X e-subtype has a rotation period of 3.3 hours. It was named after Daniel Milton, American geologist with the USGS.

Orbit and classification

Milton is a non-family asteroid from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 1.8–3.4 AU once every 4 years and 2 months (1,518 days; semi-major axis of 2.58 AU). Its orbit has an eccentricity of 0.32 and an inclination of 19° with respect to the ecliptic.

The asteroid was first observed as at Heidelberg Observatory in September 1933. The body's observation arc begins with its official discovery observation at Palomar in September 1983.

Physical characteristics

In the SMASS classification, Milton is a Xe-subtype that transitions between the X-type and E-type asteroids. It has also been characterized as a carbonaceous C-type by Pan-STARRS large-scale survey.

Rotation period

In September 2008, a rotational lightcurve of Milton was obtained from photometric observations by Julian Oey at the Kingsgrove and Leura observatories. Lightcurve analysis gave a rotation period of 3.2978 hours with a brightness variation of 0.30 magnitude (). In August 2012, a refined period of 3.295 hours and an amplitude of 0.16 magnitude was measured by Afşar Kabaş at the Çanakkale University Observatory in Turkey ().

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Milton measures between 11.500 and 11.54 kilometers in diameter and its surface has an albedo between 0.1002 and 0.2306.

The Collaborative Asteroid Lightcurve Link derives an albedo of 0.1158 and a diameter of 11.26 kilometers based on an absolute magnitude of 12.7.

Only one brief stellar occultation by 4332 Milton has been observed to date, in 2021.

Naming

This minor planet was named after Daniel J. Milton (1934-2024), American geologist with the United States Geological Survey, known for his geological studies of the Moon and Mars, as well as for research on impact craters and features in Australia. The official naming citation was published by the Minor Planet Center on 30 January 1991 (M.P.C. 17656).

References

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

background-asteroids discoveries-by-carolyn-s.-shoemaker named-minor-planets xe-type-asteroids-(smass) astronomical-objects-discovered-in-1983

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