HD 17156 b
Astronomical discovery
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HD 17156 b, named Mulchatna by the IAU, is an extrasolar planet approximately 255 light-years away in the constellation of Cassiopeia. The planet was discovered orbiting the yellow subgiant star HD 17156 in April 2007. Wikipedia
Orbital period: 21 days
Discovered: April 14, 2007
Mean density: 3,470 kg/m3 (5,850 lb/cu yd)
Discoverer: Debra Fischer
Eccentricity: 0.6768 ± 0.0034
Mass: 3.191 ± 0.033 MJ
Star: HD 17156
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