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IC5146 - Cocoon Nebula

Constellation: Cygnus

IC5146 is popularly known as the Cocoon Nebula. Its angular size is 20.0'x 10.0' and the magnitude is around 10 with surface brigtness 15.5. It is a nice H-alpha object at the start of the season in August!

03 August 2006

Scope: Celestron C8 with Celestron 0.63 reducer
Camera: Artemis 285
Filters: Astronomik Ha (13Nm)
Exposure: Ha=13x300s 2x2 binning
Guide scope: Takahashi FS60c
Guide camera: Vesta SC3 bw webcam
Mount: Vixen GPDX
Capture sw: Artemis Capture (to 16bit FITS)
Guiding sw: K3CCDTools3 and MTSca Pro

Calibration: ImageTOOLSca bis/darks/flat
Stacking: K3CCDTools3
Adjustments: Photoshop CS2