alcyone software


Alcyone Ephemeris Small Body Data Files

Home Contact Imprint

Asteroid 944 Hidalgo


Named after the Mexican hero Miguel Hidalgo y Costilla.

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

Alternate designation1920 HZ
ClassificationCentaur
Noteslongest orbital period of any asteroid in the traditional asteroid belt

Osculating Orbital Elements
Epoch2445668,5
Semi major axis5,8509 AU
Period [Julian yrs]14,153 Julian years
Inclination42,375 °
Eccentricity0,6550
Lon. of ascending node21,654 °
Argument of perihelion57,268 °
Passage of perihelion1977-Feb-11.781728
Aphelion distance9,6835 AU
Mean anomaly172,868 °

Physical Data
Radius19,00 km
Rotation period10,063 days
Absolute magnitude (H)10,344
Magnitude Slope (G)0,15
Color index (B-V)0,743
Geometric albedo0,06
Spectral classn.a.

Discovery Circumstances
DiscovererWalter Baade
Discovered1920-10-31

Data File
Data File Name944_Hidalgo.aed
Data File Date2006-07-19
Data File Size2714 kB
Covered Period1800,00 - 2100,00