Thursday, February 26, 2026

The Flame and Horsehead Nebulae (Starless)

 


The Horsehead and Flame Nebulae are iconic neighboring celestial objects in the constellation Orion, near the star Alnitak, part of the vast Orion Molecular Cloud Complex. The Flame Nebula (NGC 2024) is an emission nebula, glowing red from ionized hydrogen excited by nearby stars, revealing fiery shapes. The Horsehead Nebula (Barnard 33) is a dark, dense cloud of dust silhouetted against a bright background nebula (IC 434), creating its famous horse-head shape as it blocks starlight. 

Image Details:

- Imaging Scope: William Optics 61mm ZenithStar APO

- Imaging Camera: ZWO ASI2600MC Color with IR Cut filter

- Guiding Equipment: Celestron Starsense Autoguider

- Acquisition Software: Sharpcap

- Guiding Software: Celestron

- Light Frames: 90*2 mins @ 100 Gain, Temp -15C

- Dark Frames: 20*2 mins

- Stacked in Deep Sky Stacker

- Processed in PixInsight (incl. Star Removal using Starnet2), Adobe Lightroom and Topaz Denoise

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