versions: 1280 x 1024 1680 x 1050 1920
Object Type: Open
NGC 7789 is bright, rich open
cluster that is an impressive object in small and medium-sized telescopes.
14" LX200R/STL-11000M/Astrodon LRGB filters/Paramount ME
Exposures: LRGB: L 8 x 4 minutes, binned 2x2: R 8 x 4 minutes: G 8 x
4 minutes: B 8 x 4 minutes: RGB binned 3x3
Date: December 1, 2007
Location: Landers, California, USA
Technical Notes: Individual exposures were obtained using CCDAutoPilot2 and then sigma combined. The RGB image was created in
Registar 1.0. A Gaussian Blur
of 0.5 pixel was applied to the RGB image and Unsharp Mask of 1 pixel with a Threshold of
1 was applied to the luminance image.