alcyone software


Alcyone Ephemeris Small Body Data Files

Home Contact Imprint

Asteroid 5 Astraea


Named after Astraea, goddess of justice; daughter of Zeus and Themis in Greek mythology.

If the download doesn't start automatically, click here.
When the download succeeded click 'Open' to install the data file.

ClassificationMain-belt Asteroid

Osculating Orbital Elements
Epoch2449141,5
Semi major axis2,5749 AU
Period [Julian yrs]4,132 Julian years
Inclination5,358 °
Eccentricity0,1914
Lon. of ascending node141,788 °
Argument of perihelion356,355 °
Passage of perihelion1995-May-25.482442
Aphelion distance3,0678 AU
Mean anomaly187,894 °

Physical Data
Radius59,54 km
Rotation period16,8 days
Absolute magnitude (H)6,8512
Magnitude Slope (G)0,15
Color index (B-V)0,826
Geometric albedo0,2268
Spectral classS

Discovery Circumstances
DiscovererKarl Ludwig Hencke
Discovered1845-12-08

Data File
Data File Name5_Astraea.aed
Data File Date2006-07-19
Data File Size2714 kB
Covered Period1800,00 - 2100,00