Sh2-101 - Tulip Emission Nebula in Cygnus

posted: 3009 days ago, on Tuesday, 2009 Aug 25 at 07:58
tags: astronomy, astrophotography, deep sky, Anthony Ayiomamitis.

Sh2-101 - Tulip Emission Nebula in Cygnus
Original image: http://www.perseus.gr/Astro-DSO-Nebulae-Sh2-101.htm

Contributor: Anthony Ayiomamitis

Date/Time: Jul 30, 2009 (00:0 - 04:40 UT+3)
Loc: Athens, Greece (38.2997-deg N, 23.7430-deg E)
Equipment: AP 160 f/7.5 StarFire EDF, AP 1200GTO GEM, SBIG ST-10XME, SBIG CFW10, AstroDon TruBal CRGB.
Exposures: Lum 20 x 6 min, Red 10 x 6 min, Green 10 x 6 min, Blue 10 x 6 min, Dark 15 x 6 min, Binning: 1x1 (Lum), 1x1 (RGB)
Processing: Reduction, multi-star registration/alignment, sum-combine (lum) and average-combine (RGB), colour balance for QE with adjustment for atmospheric extinction, DDP, background normalization, RGB combine, levels, saturation, levels with double luminance layering using RED, slight unsharp masking, despeckle, pixel repair, 16- to 8-bit conversion.

nothing more to see. please move along.