IC 1318 - Butterfly Nebula


IC 1318 is commonly known as the Butterfly Nebula. Its distinctive shape is due to the band of dark nebula - LDN 889 - that bifurcates the nebula. Other dark nebula visible in the image are B 347, at the center of the bottom wing of the Butterfly, and B 343, off-center in the upper wing. The open star cluster at the upper right is NGC 6910.

This nebula is between three and five thousand light years away. Each lobe is approximately 50 light years in diameter. The bright star toward the upper right is Sadr (Gamma Cygni). It is not actually associated with the nebula as it lies much closer to us (a mere 1,800 light years away).

Telescope: Pentax 75 EDHF
Cameras: Color: Canon 650D (Hap Griffin modified); Raw capture; ISO 1600
Ha: ST-8300 w/12nm Astronomik filter
Mount: CEM60
Guiding: QHY 5L II-M on 60mm guide scope
Exposures: Color: 20 @ 5 min.
Ha: 14 @ 7.5 min.
Processing: Color images were aligned and combined using ImagesPlus. Ha images were aligned and combined in CCDSoft. The two were aligned in RegiStar and combined and adjusted in Photoshop. Topaz Detail and DeNoise were.
Note: Color images were taken from my backyard in southeastern Minnesota on 10/11-12/15. Ha images were taken on 9/15/19.
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