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153 Hilda

Outer main-belt asteroid

Field	Value
name	153 Hilda
image	Hilda-LB1-mag14.jpg
caption	Star field showing Hilda (apmag 14.2)
background	#D6D6D6
minorplanet	yes
mpc_name	(153) Hilda
alt_names	A875 VC; 1935 GD
pronounced
adjective	Hildian
discovery_ref
discoverer	J. Palisa
discovery_site	Austrian Naval Obs.
discovered	2 November 1875
mp_category	Main belt (Hilda)
orbit_ref
epoch	31 July 2016 (JD 2457600.5)
observation_arc	121.05 yr (44215 d)
uncertainty	0
semimajor	3.9783 AU
eccentricity	0.13971
period	2898.3 days 7.94 yr (2898.3 d)
inclination	7.8249°
perihelion	3.4225 AU
aphelion	4.5341 AU
asc_node	228.16°
arg_peri	38.617°
mean_anomaly	51.690°
mean_motion	/ day
jupiter_moid	0.569657 AU
tisserand	3.023
dimensions
mass	~5.2 kg
escape_velocity	~ 6 m/s
abs_magnitude	7.48
rotation	5.9587 h
albedo
spectral_type	P

153 Hilda is a large asteroid in the outer main belt, with a diameter of 170 km. It is the largest member of the Hilda family, a collisional family of asteroids in the Hilda region.

Orbit and family

Hilda gives its name to an asteroid group called the Hilda group (or Hildas for short). It is not a true asteroid family, since the members are not physically related, but rather share similar orbital elements. The Hildas are locked in a 2:3 orbital resonance with Jupiter;{{cite journal |doi-access=free

The orbital plane of 153 Hilda is inclined at an angle of 7.82° to the plane of the ecliptic. It has an orbital eccentricity (ovalness) of 0.13971. Multiple light curves of the asteroid provide a consistent rotation period of approximately

Notes

References

{{dict.com. Hilda
Bhattacharya & Lichtman (2016) ''Solar Planetary Systems'', p. 6
Schmadel, Lutz D.. (2003). "Dictionary of Minor Planet Names". Springer Science & Business Media.

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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