Best of AOP - Diffuse Nebulae

NGC 6992: The Veil Nebula

These filaments of gas are a portion of a much larger bubble of expanding material generated by the explosion of a massive star. This portion of the complex is often called the "Network Nebula." At an estimated distance of 2600 light years, its large angular extent on the sky indicates that it is an old remnant. By measuring both the size of the bubble and the velocity of the expanding gas, astronomers estimate that this spectacular explosion took place more than 15,000 years ago. A much younger example is the Crab Nebula.

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Last Updated: 13-Jun-2014

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About This Image

Click on image for larger version.

Equipment

20in RC Optical Systems telescope Operating at f/8.1

Paramount ME Robotic Telescope Mount

SBIG ST10XME CCD camera with color filter wheel

LRGB color production was used to create this image.

The exposure times below refer to each of the 9 frames that make up this mosaic. This works out to be 12 hours

of exposure time invested in this project.

Most of the 20in RC data shows details that are equal to or less than 2 arcseconds. (One frame nearly equaled 1")

The spectacular background image was graciously offered by Mike Cook.

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

Luminance = 50 minutes binned 1x1

Red = 10 minutes binned 2x2

Green = 10 minutes binned 2x2

Blue = 10 minutes binned 2x2

Minimum credit line: Mike Cook/Jennifer and Louis Goldring/Burt May/Brad Ehrhorn /Jeff and Mike Stuffings/

Adam Block/NOAO/AURA/NSF