NGC 6888 Narrowband (plus some PixelMath)

Finally, some color images!  (Or at least false color.) This is one panel from my earlier Crescent Nebula 4-panel H-alpha mosaic, with OIII and SII data added.  The first version is in a slightly modified “Hubble” narrowband palette (R=70% SII+30% H-alpha, G=100% H-alpha, B=100% OIII). Image data: Exposures: 13 x 1200s Ha, 16 x 1200s … More NGC 6888 Narrowband (plus some PixelMath)

Lonely little NGC 6888 adrift in a sea of ionized Hydrogen.

This is a portion of a larger H-alpha mosaic that I took while the full moon was out this past week. NGC 6888 is a terrific target for a close-up, but it’s also beautiful in context of the whole “neck” of the swan Cygnus. Image data: Exposures: Portion of a four-frame mosaic composed of 63 … More Lonely little NGC 6888 adrift in a sea of ionized Hydrogen.