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Cygnus Loop

Sh2-103, Cygnus X-5
Incorporates the Veil Nebula, C33 / C34, NGC 6960 / NGC 6995

Supernova remnant in Cygnus

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Proper Names	Cygnus Loop; contains various component nebulae, most notably the Veil Nebula
Caldwell Numbers	Incorporates C33 and C34
NGC/IC Numbers	Incorporates NGC 6960, NGC 6974, NGC 6979, NGC 6992 and NGC 6995, IC 1340
Constellation	Cygnus
Right Ascension	20h 51m 0s
Declination	+30° 40' 0"
Distance	c.2,400 light years c.700 parsecs
Magnitude	Apparent: +5.00 Absolute: -3.27 (Approximate values based on the Veil Nebula)
Dimensions	Apparent: 3° 50' x 2° 40' Actual diameter: c. 120 light years
Optimum Visibility	August

This ultraviolet image of the Cygnus Loop shows much more detail than is apparent in visible light. The prominent arcs to the left and right of centre represent the Eastern and Western Veil Nebula respectively, the most prominently visible elements of the Cygnus Loop. Imagery provided by Aladin sky atlas

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