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79912 Terrell

Main-belt asteroid

Field	Value
minorplanet	yes
name	79912 Terrell
background	#D6D6D6
discovery_ref
discoverer	W. R. Cooney Jr.
E. Kandler
discovery_site	Baton Rouge Obs.
discovered	10 February 1999
mpc_name	(79912) Terrell
alt_names
named_after	Dirk Terrell
(American astrophysicist)
mp_category	main-belt(middle)
Adeona
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	20.65 yr (7,543 days)
aphelion	3.1043 AU
perihelion	2.2475 AU
semimajor	2.6759 AU
eccentricity	0.1601
period	4.38 yr (1,599 days)
mean_anomaly	318.81°
mean_motion	/ day
inclination	10.689°
asc_node	307.69°
arg_peri	326.67°
dimensions	km
albedo
abs_magnitude	14.9

E. Kandler (American astrophysicist) Adeona

79912 Terrell (provisional designation ****) is a dark Adeonian asteroid from the central regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 10 February 1999, by astronomers Walter Cooney and Ethan Kandler at the Highland Road Park Observatory, in Baton Rouge, Louisiana, United States. The asteroid was named after American astrophysicist Dirk Terrell.

Orbit and classification

Terrell is a member of the Adeona family (505), a large family of carbonaceous asteroids in the central main belt, named after 145 Adeona.

It orbits the Sun at a distance of 2.2–3.1 AU once every 4 years and 5 months (1,599 days). Its orbit has an eccentricity of 0.16 and an inclination of 11° with respect to the ecliptic. The body's observation arc begins with its identification as by AMOS at Haleakala Observatory in August 1996, more than two years prior to its official discovery observation at Baton Rouge.

Physical characteristics

The asteroid's spectral type is unknown. Members of the Adeona family are typically carbonaceous C-type asteroids, which Terrell's albedo agrees with.

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Terrell measures 6.340 kilometers in diameter and its surface has a low albedo of 0.053.

Rotation period

As of 2017, no rotational lightcurve of Terrell has been obtained from photometric observations. The asteroid's rotation period, poles and shape remain unknown.

Naming

This minor planet was named after American Dirk Terrell (born 1965), an astrophysicist, writer, space artist, and mentor of amateur astronomers. The official naming citation was published by the Minor Planet Center on 18 September 2005 (M.P.C. 54829).

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.

adeona-asteroids discoveries-by-walter-r.-cooney-jr. discoveries-by-ethan-kandler named-minor-planets astronomical-objects-discovered-in-1999

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