The Gamma Cygni Nebula (IC1318)

Image of the Gamma Cygni Nebula
R/B-band color composite image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across.
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From Cambridge , the Gamma Cygni Nebula is visible in the dawn sky, rising at 00:16 (EDT) and reaching an altitude of 49° above the eastern horizon before fading from view as dawn breaks at around 06:07.

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Name The Gamma Cygni Nebula (IC1318)
Object type Star
Other names
The Gamma Cygni Nebula
The Butterfly Nebula
IC 1318[1]
LBN 251[2]
Position
Right ascension:20h22m13s [1]
Declination:+40°15'24" [1]
Constellation:Cygnus
Magnitude:2.23 (V) [1]
2.90 (B) [1]
1.11 (J) [1]
0.83 (H) [1]
0.72 (K) [1]
Angular dimensions:40.0 arcmin
B-V Color (mag):0.67
Sources
Visibility from Cambridge

All times shown in Cambridge local time.

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Cambridge

Latitude:
Longitude:
Timezone:

42.38°N
71.11°W
EDT

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Last updated: 12 Mar 2026, 19:36 UTC
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