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1307 Cimmeria

Main-belt asteroid

Field	Value
minorplanet	yes
name	1307 Cimmeria
background	#D6D6D6
discovery_ref
discovered	17 October 1930
discoverer	G. Neujmin
discovery_site	Simeiz Obs.
mpc_name	(1307) Cimmeria
alt_names	1930 UF
pronounced
named_after	Cimmerians
(ancient people of Crimea)
mp_category	main-belt(inner)
orbit_ref
epoch	16 February 2017 (JD 2457800.5)
uncertainty	0
observation_arc	85.74 yr (31,315 days)
aphelion	2.4689 AU
perihelion	2.0316 AU
semimajor	2.2503 AU
eccentricity	0.0972
period	3.38 yr (1,233 days)
mean_anomaly	157.34°
mean_motion	/ day
inclination	3.9506°
asc_node	233.87°
arg_peri	207.34°
dimensions	km
km
km
km
10.54 km (calculated)
rotation	h
h
h
albedo	0.20 (assumed)

spectral_type	Tholen = SS
B–V = 0.876
U–B = 0.550
abs_magnitude	11.8612.2512.69

(ancient people of Crimea) km km km 10.54 km (calculated) h h

B–V = 0.876 U–B = 0.550

1307 Cimmeria, provisional designation , is a stony asteroid from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 17 October 1930, by Soviet astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula, and later named after the Cimmerians, the ancient people of Crimea.

Orbit and classification

Cimmeria orbits the Sun in the inner main-belt at a distance of 2.0–2.5 AU once every 3 years and 5 months (1,233 days). Its orbit has an eccentricity of 0.10 and an inclination of 4° with respect to the ecliptic. The first unused observation was made at the Lowell Observatory the night before its discovery. The body's observation arc begins at the discovering observatory, the night after its official discovery observation.

Physical characteristics

On the Tholen taxonomy, Cimmeria is a common stony S-type asteroid.

Rotation and pole

In September 2004, the best rated rotational lightcurve of Cimmeria was obtained from photometric observations by American astronomer Brian Warner at his Palmer Divide Observatory in Colorado. Lightcurve analysis gave a well-define rotation period of 2.820 hours with a brightness amplitude of 0.31 magnitude (). Astronomer Daniel Klinglesmith obtained a similar period of 2.821 hours with an amplitude of 0.29 magnitude.

In addition a modeled lightcurve, using photometric data from various sources, gave a period of 2.820723 hours, as well as a spin axis of (63.0°, n.a.) in ecliptic coordinates ().

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Cimmeria measures between 7.85 and 10.058 kilometers in diameter and its surface has an albedo between 0.2218 and 0.371, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 10.54 kilometers with an absolute magnitude of 12.25.

Naming

This minor planet was named after the Cimmerians, ancient inhabitants of the Crimea peninsula expelled by the Scythians in the 7th century B.C. (also see the preceding asteroid 1306 Scythia). The official naming citation is based on a private communications between the author of the Dictionary of Minor Planet Names, Lutz Schmadel, and Soviet–Moldavian astronomer Alexander Deutsch.

Notes

References

{{OED. Cimmerian

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.

flora-asteroids discoveries-by-grigory-neujmin named-minor-planets s-type-asteroids-(tholen) astronomical-objects-discovered-in-1930

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