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The Swan Nebula M17 Hubble Palette crop, Terry Hancock

The Swan Nebula M17 Hubble Palette crop

The Swan Nebula M17 Hubble Palette crop, Terry Hancock

The Swan Nebula M17 Hubble Palette crop

Description

Shot from my backyard observatory in Fremont MI over 3 nights, this is a Hubble Palette (HST) version with Sulphur II filter assigned to Red, H-Alpha filter assigned to Green and Oxygen III filter assigned to blue channel.

Total Exposure time 5 hours.

Location: Fremont, Michigan

Date of Shoot 1st, 3rd and 8th October 2012

All exposures unbinned

H-Alpha 3nm 8 x 20 min

SII 4 x 20 min

OIII 3 x 20 min

QHY9M monochrome CCD cooled to -30C www.astrofactors.com

Thomas M. Back TMB 92SS F5.5 APO Refractor

Paramount GT-1100S German Equatorial Mount (with MKS 4000)

Image Aquisition Maxim DL

Stacking and Calibrating: CCDStack

Registration of images in Registar

Post Processing Photoshop CS5

Star Spikes PRO2

Comments

Histogram

The Swan Nebula M17 Hubble Palette crop, Terry Hancock