Best of AOP - Star Clusters

M4

75 lightyears across and 7200 lightyears away, this star cluster will resolve itself in moderate amateur telescopes. It is very near to the beautiful Antares region.

Star map is navigable within this page.

Last Updated: 24-Jun-2014

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Sky Location:

About This Image

Click on image for larger version.

Equipment

20in RC Optical Systems telescope Operating at f/5.5

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

LRGB color production was used to create this image.

Digital Development (DDP) via Maxim/DL was also used in order to display the very dim and very bright details of

the image simultaneously.

Luminance = RGB (synthetic) binned 1x1

Red = 30 minutes binned 1x1

Green = 30 minutes binned 1x1

Blue = 30 minutes binned 1x1

Minimum credit line: George Seitz/Adam Block/NOAO/AURA/NSF