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Taken 28-Feb-23
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28 of 209 photos
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Subcategory:Night Sky
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Photo Info

Dimensions2000 x 1600
Original file size3.95 MB
Image typeJPEG
Color spaceUncalibrated


Sharpless 216 is a large faint nebula in Auriga.

12/9/9 x 10 min each of RGB,
34x20min H-Alpha, 15x20min OIII
Camera: Moravian G4 (16803) w Gen II Astrodon filters
Scope: Astrophysics AP155EDF Refractor w Focus Boss II
Mount: Paramount MX
Guiding SBIG ST402ME attached to a Borg 60mm guidescope
RGB, OIII and H-Alpha processing in PixInsight. Stars removed prior to stretching the OIII and H-Alpha using Russ Croman's StarXTerminator in PI.; Blend of starless H-Alpha and OIII w RGB and save-for-web in PS CC
Blended as follows:
Red + H-Alpha @ 100% using Lighten
Green + OIII @ 50% using Lighten
Blue + OIII @ 50% and H-Alpha @ 20% using Lighten