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Asteroid 18 Melpomene


Named after Melpomene, the Muse of tragedy in Greek mythology.

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ClassificationMain-belt Asteroid
NotesA possible Melpomenean satellite (S/1978 (18) 1) with a diameter at least 37 km was detected.

Osculating Orbital Elements
Epoch2442066,5
Semi major axis2,2950 AU
Period [Julian yrs]3,477 Julian years
Inclination10,128 °
Eccentricity0,2183
Lon. of ascending node150,844 °
Argument of perihelion227,374 °
Passage of perihelion1974-Dec-28.377039
Aphelion distance2,7959 AU
Mean anomaly262,659 °

Physical Data
Radius70,29 km
Rotation period11,5714 days
Absolute magnitude (H)6,3841
Magnitude Slope (G)0,25
Color index (B-V)0,854
Geometric albedo0,2225
Spectral classS

Discovery Circumstances
DiscovererJohn Russell Hind
Discovered1852-06-24

Data File
Data File Name18_Melpomene.aed
Data File Date2006-07-19
Data File Size2714 kB
Covered Period1800,00 - 2100,00