NGC7000 North American Nebula


Date: 18 October 2003

Telescope: Old T-mount 200mm F4.5 lens stopped down to F5.6, on Gemini G-41 mount

Guiding: ST-4 Autoguider with Celestron C8

Camera: Genesis KAF-1602E (Eng. Class)

Location: Tai Mei Tuk, Hong Kong

Filtration: Astronomik 13nm Hydrogen Alpha filter

Exposure: 9 x 20mins

Software: Image acquisition by MaximDL 3.0, calibration and auto-alignment by Astroart 3.0, sigma-combined by Sigma, final brightness adjustment by Astroart.