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Trifid Nebula (NGC 6514)
Kirk Brink

Trifid Nebula

The Trifid Nebula is made up of three nebula types. A nebula is a cloud of gas made mostly of hydrogen and helium. This nebula is made up of an emission nebula (it emits light from ionized gases), a reflection nebula (particles reflecting light emitted from nearby stars), and a dark nebula (a dense cloud that blocks light from shining through it). The emission nebula is the red part, the upper blue part is the refection nebula, and the black areas through the middle is the dark nebula.

This photo is made from a combination of red, green, and blue images. It shows a very bright cluster of stars in the center. They are oversaturated in order to see the surrounding nebula. The red cloud is made up of hydrogen gas. The dark bands through the cloud is dust particles blocking the rest of the nebula from view.

References:

Wikipedia, "Trifid Nebula"

Wikipedia, "Emission Nebula".

Wikipedia, "Reflection Nebula".

Wikipedia, "Dark Nebula".

Right Ascension (J2000) 18:23:23
Declination (J2000) -23:01:48
Filters used B (Blue), R (Red), V (Green)
Exposure x number of images for each filter B (120s x 6 ), V (120s x 3), and R (120s x 3);
Image dimension 592x562 pixels; 28 x 28 arc minutes (Wikipedia, Trifid  Nebula)
Date/time observed April 4, 2018, 9:30 AM UTC
Distance 1600 pc
Scale 0.00047 pc/arc minute

 

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