189 Phthia
|
Orbital characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
---|---|
Orbit type | Main belt |
Semimajor axis | 2.450 AU |
Perihelion distance | 2.360 AU |
Aphelion distance | 2.541 AU |
Orbital period | 3.84 years |
Inclination | 5.18° |
Eccentricity | 0.037 |
Physical characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
Diameter | 37.7 km |
Rotation period | 15 hours |
Spectral class | S |
Abs. magnitude | 9.33 |
Albedo 4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html) | 0.231 |
History 2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html) | |
Discoverer | C. H. F. Peters, 1878 |
189 Phthia is a bright-coloured, rocky main belt asteroid.
It was discovered by C. H. F. Peters on September 9, 1878 and named after Phthia, a region of Ancient Greece.
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(For a complete listing, see: List of asteroids. For pronunciation, see: Pronunciation of asteroid names.) |