M15LRGB(500).jpg (89293 bytes)

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Object Type: Globular Cluster (Class IV)
Constellation: Pegasus
Magnitude: 6.2
Size: 18'

From northern latitudes, M15 is the brightest globular cluster in the autumn sky. It is located at a distance of 33,600 light-years. Under good seeing conditions the planetary nebula Pease 1 can be seen in the cluster.

Equipment: Meade 14" LX200R/STL-11000M/Astrodon LRGB filters/Paramount ME
F-ratio: f/9.5
Exposures: LRGB: L 10 x 6 minutes, binned 2x2: R 10 x 6 minutes: G 10 x 6 minutes: B 10 x 6 minutes: RGB binned 3x3
Date: October 6, 2007
Location: Landers, California, USA
Technical Notes: I
ndividual exposures were obtained using CCDAutoPilot2 and then sigma combined. The RGB image was created in Registar 1.0. A Gaussian Blur of 1 pixel was applied to the RGB image and Unsharp Mask of 1 pixel with a Threshold of 1 was applied to the luminance image. The RGB image was duplicated and combined with the original using Soft Light to enhance color.

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