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Phi Cassiopeiae

This yellow giant or supergiant lies in the foreground of the open cluster NGC 457, which itself is 7900 light-years away from us. The given distance for Phi Cas is very uncertain and the lower limit. Maybe the star is much further away, which would make it much more luminous.

Constellation: Cassiopeia
Distance: 2330 light-years
Spectral class: F0
Visual magnitude: 4.98
Luminosity: 18 000 * Sun

Back: List of big and giant stars part 2

12/17/2007

    Phi Cassiopeiae
Phi Cas is the brightest star in this image, next to it is NGC 457.
Photo: Ken and Emilie Siarkiewicz/Adam Block/NOAO/AURA/NSF

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