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13123 Tyson

Asteroid

Field	Value
minorplanet	yes
name	13123 Tyson
background	#D6D6D6
discovery_ref
discovered	16 May 1994
discoverer	C. Shoemaker
D. H. Levy
discovery_site	Palomar Obs.
mpc_name	(13123) Tyson
alt_names	1994 KA
named_after	Neil deGrasse Tyson
(American astrophysicist)
mp_category	main-beltPhocaea
orbit_ref
epoch	4 September 2017 (JD 2458000.5)
uncertainty	0
observation_arc	63.78 yr (23,297 days)
aphelion	2.9996 AU
perihelion	1.7201 AU
semimajor	2.3598 AU
eccentricity	0.2711
period	3.63 yr (1,324 days)
mean_anomaly	78.622°
mean_motion	/ day
inclination	23.289°
asc_node	68.802°
arg_peri	252.04°
satellites	1
dimensions	8.22 km (calculated)
km
rotation	h
h
albedo
0.23 (assumed)
spectral_type	S
abs_magnitude	(R)12.2012.312.64

D. H. Levy (American astrophysicist) km h 0.23 (assumed)

13123 Tyson, provisional designation , is a stony Phocaea asteroid and an asynchronous binary system from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on May 16, 1994, by American astronomer Carolyn Shoemaker and Canadian astronomer David Levy at the Palomar Observatory in California, United States. The asteroid was named for Neil deGrasse Tyson, American astrophysicist and popular science communicator.

Orbit and classification

The stony S-type asteroid is a member of the Phocaea family (701), a rather small group of asteroids with similar orbital characteristics, named after its largest member, 25 Phocaea. It orbits the Sun in the inner main-belt at a distance of 1.7–3.0 AU once every 3 years and 8 months (1,324 days). Its orbit has an eccentricity of 0.27 and an inclination of 23° with respect to the ecliptic. The first precovery was taken at Palomar's Digitized Sky Survey (DSS) in 1953, extending the asteroid's observation arc by 41 years prior to its discovery.

Physical characteristics

Rotation period

In February 2015, a rotational lightcurve was obtained by astronomer Petr Pravec at the Astronomical Institute, Czech Republic. It showed a well-defined rotation period of hours with a brightness amplitude of 0.20 in magnitude (). A previous photometric observation in August 2009, at the Oakley Southern Sky Observatory, Australia, gave a lightcurve with a similar period of hours and a brightness variation of 0.35 magnitude ().

Satellite

Tyson is an asynchronous binary asteroid with a minor planet moon. The satellite has a rotation period of 3.862 hours. No other physical properties for this binary system has been published.

Diameter and albedo

According to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 10.9 kilometers in diameter and its surface has an albedo of 0.197, while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 and calculates a smaller diameter of 8.2 kilometers with an absolute magnitude of 12.64.

Naming

This minor planet was named in honor of American astrophysicist and popular science communicator, Neil deGrasse Tyson (born 1958). In 1996, he became director of New York's Hayden Planetarium and was the chief scientist for its complete renovation. At the time, Tyson was also a research affiliate at Princeton University. The official naming citation was published by the Minor Planet Center on 11 November 2000 (M.P.C. 41572).

Notes

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.

phocaea-asteroids discoveries-by-carolyn-s.-shoemaker discoveries-by-david-h.-levy named-minor-planets neil-degrasse-tyson astronomical-objects-discovered-in-1994

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