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Object Type: Globular Cluster (Class IX)
Constellation: Scorpius
Magnitude: 5.6
Size: 36'

M4 is one of the nearest globular clusters at a distance of 7200 light-years. Its visual appearance in a telescope is notable for a prominent bar of stars which traverses its core. In this image it is oriented in an up-and-down direction.

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: May 30, 2008
Location: Landers, California, USA
Technical Notes: Individual exposures were sigma combined. The RGB image was created in Registar 1.0.