Best of AOP - Diffuse Nebulae

NGC 2023

This nebula surrounds a large B type star at a distance of 1600 light years from the sun. B type stars typically have a surface temperature somewhere in the range of 11,000 - 25,000 Kelvins. In comparison the sun has a temperature of 5,000 Kelvins. This star forming region has a particle density of 5000 particles per cubic centimeter. The interstellar medium (the space between stars) within our own galaxy averages 1 particle per cubic centimeter. Compare that with air near the surface of the Earth which averages 100,000,000,000,000,000,000 molecules per cubic centimeter!

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Last Updated: 09-Jun-2014

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About This Image

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16in RC Optical Systems telescope Operating at f/8.4

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

LRGB color production was used to create this image.

The streaks of extra light are from the glare of a bright star just outside of this field of view (Alnitak). 

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 = 31 minutes binned 1x1

Red = 12 minutes binned 2x2

Green = 12 minutes binned 2x2

Blue = 12 minutes binned 2x2

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