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Robert Chozick | all galleries >> Galleries >> images_for_sale_detail > Horsehead Nebula and NGC 2023 in OSC/Ha
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01-Apr-2023 Robert Chozick

Horsehead Nebula and NGC 2023 in OSC/Ha

Paducah Skies Observatory

The Horsehead Nebula (also known as Barnard 33 in bright nebula IC 434) is a dark nebula in the constellation Orion. The nebula is located just below (to the south of) Alnitak, the star farthest left on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The Horsehead Nebula is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which is similar to that of a horse's head when viewed from Earth. The red glow originates from hydrogen gas predominantly behind the nebula, ionized by the nearby bright star Sigma Orionis. (Wikipedia)

In the bottom left of the image is NGC 2023, which is an emission and reflection nebula in the equatorial constellation of Orion. It was discovered by the German-born astronomer William Herschel on 6 January 1785. This reflection nebula is one of the largest in the sky, with a size of 10 × 10 arcminutes. It is located at a distance of 1,300 ly (400 pc) from the Sun, and is positioned ~15′ to the northeast of the Horsehead Nebula. (Wikipedia)

Paducah Skies Observatory is a private observatory SW of Paducah, TX. It sits on 45 acres of native Texas grasslands and mesquite trees. The skies are 21.99 on the light pollution scale (almost Bortle 1).

This image is for sale at the Paducah Skies Observatory website:

https://paducahskiesobservatory.com/shop/ols/categories/horsehead-nebula

AG Optical 10 inch iDK
ZWO ASI2600MC Pro CMOS One Shot Color Camera
ZWO ASI2600MM Pro Mono CMOS Camera (Ha)
Baader Vario Finder mounted as Guidescope
ZWO ASI178MM Guide Camara
Astro Physics 900 GTO mount

60 exp 4 min each OSC (100 gain/20 offset)
21 exp 10 min each Ha (150 gain/30 offset)

Guided with PHD-2
Captured with The Sky X
Pre-processed and Stacked in Nebulosity 4
Post Processed in Pixinsight and Photoshop full exif


other sizes: small medium large original auto
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