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RS Puppis

This large Delta-Cepheid pulsates with a period of 41.4 days, changing its luminosity by a factor of 5. It is the only one of these stars known to be embedded in a large nebula. This, by reflecting light echos, made the very exact distance measuring (± 90 Lj) possible.

Constellation: Puppis
Distance: 6500 light-years
Spectral class: F8Iab
Visual magnitude: 7,0
Luminosity: 15 000 * Sun
Mass: 10 * Sun
Diameter: 200 * Sun

Back: List of big and giant stars part 2

02/12/2008

     RS Puppis
The star itself is covered.
Photo: ESO
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