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NGC 6618

Imaged by Dale Liebenberg

Subject: NGC 6618

Date: 2011 September

Scope: Celestron EdgeHD 14"

Mount: ASA DDM60

Camera: SBIG STL11000M, Astrodon 3nm NB and RGB filters

Guiding: Astrodon MMOAG with SBIG remote guide head

Rotator: Astrodon Takometer

Focuser: Motorised main focuser with Robofocus and FocusMax

Location: Port Elizabeth, South Africa

Exposure: 8x30min each 3nm Ha,OIII,SII and 15x4min each RGB (blended highlights)

Image scale 0.47 arsec/pixel

Captured with MaximDL. NB Calibrated and group combined with MaximDL. RGB Calibrated and group combined with CCDStack

Colour combined and processed in PS CS4


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