Constellation: Cygnus
Distance: 4
700 light years
Magnitude: 10
Actual Size: ? light years across
Visual Size: 20.0 x 10.0 arcminutes
Other Designations: LBN 203, Caldwell 27
NGC6888 is known as the Crescent Nebula. This object is a bright Ha region in Cygnus. It is actually a Planetary Nebula, and began to form 250,000 years ago as the central Wolf-Rayet star WR136 began to shed.