M45 Rosat (original) (raw)

Rosat image of the Pleiades in X-rays. Colors represent different X-ray colors (energy bands): lowest energies red, intermediate green, highest blue. The optically brightest stars are indicated by the green squares. The brightest X-ray stars are those with the hottest atmospheres or coronas.

Amateur images of M45

Hartmut Frommert
Christine Kronberg
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Last Modification: January 3, 2001