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Black Holes Encyclopedia
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Black holes on this chart:

Image

Cygnus Finder Chart

Cygnus X-1 V404 Cygni V404 Cygni finder chart

The brightest stars of Cygnus form a cross, so the swan is also known as the Northern Cross. Find it soaring high overhead during late summer evenings in the northern hemisphere.

This document was last modified: December 6, 2005.