Best of AOP - Diffuse Nebulae

M20: The Trifid Nebula

The Trifid Nebula or M20 is one of the most observed summer nebulae. It gets its distinct look from dust lanes that seem to divide the nebula into three parts. Located in the constellation Sagittarius, its distance is estimated at approximately 5,000 light years.

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Last Updated: 07-Jun-2014

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About This Image

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20in RC Optical Systems telescope Operating at f/8.1

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

L=(R+B)RGB color production was used to create this image.

One iteration of L-R deconvolution (sharpening) algorithm using CCDsharp was applied to the luminance image.

Luminance = (Red + Blue) 60 minutes binned 1x1

Red = 10 minutes binned 2x2

Green = 10 minutes binned 2x2

Blue = 10 minutes binned 2x2

Minimum credit line: Jim and Janet Castano/Adam Block/NOAO/AURA/NSF