Trifid Nebula (M20) – A Colorful Birthplace of Stars

This image showcases the vibrant Trifid Nebula (Messier 20), one of the most visually diverse nebulae in our night sky. Located approximately 5,000 light-years away in the constellation Sagittarius, M20 features a rare combination of three nebula types:
• A red emission nebula,
• A blue reflection nebula,
• And dark dust lanes that divide the nebula into its distinctive “trifid” structure.

The dark filaments are especially dramatic, cutting across the bright regions and creating the signature three-lobed appearance. The image also reveals fine detail within the nebula’s core, where active star formation is taking place.

Captured from the skies of the United Arab Emirates, this image highlights the complexity of M20 through a narrowband SHO (Hubble Palette) process. Despite a relatively modest total integration time of 3 hours and 39 minutes, the contrast and internal structure of the nebula stand out clearly thanks to the long focal length and high-resolution processing.

• Telescope: Explore Scientific 152mm David H. Levy Comet Hunter (Maksutov-Newtonian)
• Focal Length: 730 mm
• Camera: ZWO ASI183MM Pro (Mono, Cooled)
• Mount: iOptron HAE43 Equatorial Mount
• Control & Guiding: ASIAir+
• Filters: Narrowband SHO
• Hydrogen-alpha (Hα): 34 x 180s = 1h 42min
• Oxygen-III (OIII): 27 x 180s = 1h 21min
• Sulfur-II (SII): 12 x 180s = 36min
• Total Integration Time: 3h 39min

Processing Software: PixInsight & Photoshop