Astronomy Picture of the Day
    

Keyword: millisecond pulsar
Странное звездное скопление NGC 6397 Oddities of Star Cluster NGC 6397
20.02.2002

One of these stars is blinking. This star, a member of globular cluster NGC 6397, is noteworthy not just because it blinks, but because it blinks so fast and because its companion star is so atypical.





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