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346 Hermentaria

Main-belt asteroid

Field	Value
minorplanet	yes
background	#D6D6D6
name	346 Hermentaria
discoverer	Auguste Charlois
discovered	25 November 1892
image	Орбита астероида 346.png
caption	Orbital diagram
mpc_name	(346) Hermentaria
pronounced
alt_names	1892 P
named_after	Herment
mp_category	Main belt
epoch	31 July 2016 (JD 2457600.5)
semimajor	2.79686 AU
perihelion	2.51443 AU
aphelion	3.07928 AU
eccentricity	0.10098
period	1708.5 days
inclination	8.74967°
asc_node	91.9628°
arg_peri	292.035°
mean_anomaly	188.671°
dimensions

mass
density
rotation	28.43 h
17.790 h
28.523 h
spectral_type	S
abs_magnitude	7.13
albedo
mean_motion	/ day
orbit_ref
observation_arc	45066 days
uncertainty	0

17.790 h 28.523 h

346 Hermentaria is a very large main-belt asteroid. It was discovered by French astronomer Auguste Charlois on 25 November 1892, in Nice. It is probably named for the town of Herment in the region of Auvergne, France. The asteroid orbits the Sun with a period of 1708.5 days and an eccentricity (ovalness) of 0.10. The orbital plane is inclined by 8.7° to the plane of the ecliptic.

This body has a rotational period of during which it varies in brightness with an amplitude of magnitude. It has a cross-section diameter of . 346 Hermentaria is classified as a (stony) S-type asteroid, indicating a siliceous mineralogical composition. The near infrared spectra of this object show absorption features that suggest a mix of the minerals clinopyroxene and orthopyroxene. It may be thermally–evolved, having at least partially melted at some point. The overall shape resembles a prolate spheroid.

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.

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