Asteroid 944 Hidalgo
Named after the Mexican hero Miguel Hidalgo y Costilla.
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This file is not available for download, but provided by the Alcyone Ephemeris Small Body Data File DVD.
| Alternate designation | 1920 HZ |
| Classification | Centaur |
| Notes | longest orbital period of any asteroid in the traditional asteroid belt |
Osculating Orbital Elements
| Epoch | 2445668,5 |
| Semi major axis | 5,8509 AU |
| Period [Julian yrs] | 14,153 Julian years |
| Inclination | 42,375 ° |
| Eccentricity | 0,6550 |
| Lon. of ascending node | 21,654 ° |
| Argument of perihelion | 57,268 ° |
| Passage of perihelion | 1977-Feb-11.781728 |
| Aphelion distance | 9,6835 AU |
| Mean anomaly | 172,868 ° |
Physical Data
| Radius | 19,00 km |
| Rotation period | 10,063 days |
| Absolute magnitude (H) | 10,344 |
| Magnitude Slope (G) | 0,15 |
| Color index (B-V) | 0,743 |
| Geometric albedo | 0,06 |
| Spectral class | n.a. |
Discovery Circumstances
| Discoverer | Walter Baade |
| Discovered | 1920-10-31 |
Data File
| Data File Name | 944_Hidalgo.aed |
| Data File Date | 2006-07-19 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
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