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M20 M21 (Trifid and Webb's Cross)

Category:Deep Sky
Published:
1136
M20 M21 (Trifid and Webb's Cross)NGC 6514NGC 6531
Resolution:
3429x2554 px
File size:
1554 KB

Photo description / processing

Two Messier objects in one frame. The Trifid Nebula and Webb's Cross (an open star cluster). M21 is one of the few remaining objects in the Messier catalog that have not been photographed by the Hubble Space Telescope. Captured in one night.

Technical information

Telescope/Lens
Askar SQA 106 мм f/4.8
Camera
ZWO ASI 2600 MC Pro
Mount
Ioptron HAE 29 C
Guide Scope
Askar 52 мм F4
Guide Camera
ZWO ASI 120 MM mini
Software
SharpCap 4.0, Siril, GraXpert
Location
Адыгея, станица Даховская, Россия

Light pollution

Green, Bortle 4 zone

Date taken

Exposure

  • 41 × 180″ · ISO/Gain: 100

Total exposure: 2 h 3 m

Photo versions

M20 Trifid Nebula
Updated
M20 Trifid Nebula

Jul 16th, 2025

5 h 51 m

I brought the total integration time to almost six hours. Definitely one of the most beautiful nebulae. The result of three nights of shooting. This year I'm done with the three-panel mosaic), maybe next year I'll manage to accumulate another six or eight hours.

M20 M21 (Trifid and Webb's Cross)
Current photo
M20 M21 (Trifid and Webb's Cross)

Jul 11th, 2025

2 h 3 m

Two Messier objects in one frame. The Trifid Nebula and Webb's Cross (an open star cluster). M21 is one of the few remaining objects in the Messier catalog that have not been photographed by the Hubble Space Telescope. Captured in one night.

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Current version

Comments

More photos by Ryjov Aleksey