Deep Sky Photography with digital cameras

CCD Astrophotography by Jürgen Stein

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M27 (Dumbbell Nebula) - LRGB

M27 (Dumbbell Nebula) - LRGB

Image orientation: North is on the right side.

Exposure Data

Date: 15.+16.18.+27.+31.7.+2.8.2013
Telescope: Newtonian 250mm with ASA Reducer @ f/3.6 on Mesu Mount 200.
Camera: MI G2-8300FW @ -25°C
Exposure: LRGB with L = Hα + OIII, R = R + Hα, G = G + OIII, B = B + OIII. Hα - 42x600s, OIII - 33x900s, RGB = 10/10/12x200s. No binning. Total exposure time 17h50m.
Location: Rhein-Main area, Germany. Sky brightness about 19.5-20.1 mag/arcsec^2.
Note: Guided with MI G0-0300 guider on Lacerta OAG.
Processing: Maxim DL, Pixinsight, Photoshop CS3
Publication: interstellarum 99 (9/2015).