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10245 Inselsberg

Main-belt asteroid

Field	Value
minorplanet	yes
name	10245 Inselsberg
background	#D6D6D6
discovery_ref
discoverer	C. J. van Houten
I. van Houten-G.
T. Gehrels
discovery_site	Palomar Obs.
discovered	24 September 1960
mpc_name	(10245) Inselsberg
alt_names	6071 P-L
named_after	Großer Inselsberg
(German mountain)
mp_category	main-belt(middle)
Gefion
orbit_ref
epoch	23 March 2018 (JD 2458200.5)
uncertainty	0
observation_arc	63.75 yr (23,284 d)
aphelion	3.0301 AU
perihelion	2.5332 AU
semimajor	2.7816 AU
eccentricity	0.0893
period	4.64 yr (1,695 d)
mean_anomaly	325.09°
mean_motion	/ day
inclination	8.9010°
asc_node	196.52°
arg_peri	341.87°
mean_diameter	(est. at 0.20)
albedo	0.20 (family estimate)
abs_magnitude	13.2

I. van Houten-G. T. Gehrels (German mountain) Gefion

10245 Inselsberg, provisional designation , is a Gefion asteroid from the central regions of the asteroid belt, approximately 7 km in diameter. It was discovered on 24 September 1960, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California, United States. The likely S-type asteroid was named for the German mountain Großer Inselsberg.

Orbit and classification

Inselsberg is a member of the Gefion family (516), a large intermediate belt family, named after 1272 Gefion It orbits the Sun in the central asteroid belt at a distance of 2.5–3.0 AU once every 4 years and 8 months (1,695 days; semi-major axis of 2.78 AU). Its orbit has an eccentricity of 0.09 and an inclination of 9° with respect to the ecliptic. The body's observation arc begins with a precovery taken at Palomar Observatory in May 1954, or 6 years prior to its official discovery observation.

Palomar–Leiden survey

The survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand asteroid discoveries.

Physical characteristics

As a member of the Gefion family, Inselsberg is likely a stony S-type asteroid. It has an absolute magnitude of 13.2. As of 2018, no rotational lightcurve of Inselsberg has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.

Diameter and albedo

Based on a generic magnitude-to-diameter conversion, Inselsberg measures 6.9 kilometers in diameter for an assumed stony albedo of 0.20, derived from the Gefion family's standard albedo, and a measured absolute magnitude of 13.2. According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Inselsberg measures kilometers in diameter and its surface has an albedo.

Naming

This minor planet was named after Großer Inselsberg, a mountain with an altitude of 916.5 m located in the Thuringian Forest in Thuringia, Germany. The official naming citation was published by the Minor Planet Center on 1 May 2003 (M.P.C. 48390).

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.

gefion-asteroids discoveries-by-cornelis-johannes-van-houten discoveries-by-ingrid-van-houten-groeneveld discoveries-by-tom-gehrels discoveries-by-the-palomar–leiden-survey named-minor-planets astronomical-objects-discovered-in-1960

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