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Asteroid 153 Hilda


Named after the daughter of astronomer Theodor von Oppolzer.

This file is not available for download, but provided by the Alcyone Ephemeris Small Body Data File DVD.

ClassificationMain-belt Asteroid (Hilda)
NotesHilda gives its name to an asteroid group called Hilda asteroids (or shorter Hildas). Hildas are locked in a 2:3 orbital resonance with Jupiter.

Osculating Orbital Elements
Epoch2453800,5
Semi major axis3,9805 AU
Period [Julian yrs]7,942 Julian years
Inclination7,837 °
Eccentricity0,1410
Lon. of ascending node228,344 °
Argument of perihelion41,898 °
Passage of perihelion2007-Aug-03.825541
Aphelion distance4,5418 AU
Mean anomaly295,983 °

Physical Data
Radius85,32 km
Rotation period5,11 days
Absolute magnitude (H)7,48
Magnitude Slope (G)0,15
Color index (B-V)0,669
Geometric albedo0,0618
Spectral classX

Discovery Circumstances
DiscovererJohann Palisa
Discovered1875-11-02

Data File
Data File Name153_Hilda.aed
Data File Date2006-12-22
Data File Size2714 kB
Covered Period1800,00 - 2100,00