M27 Dumbbell Nebula, RC 10" (4000 mm) Test
Photo description / processing
Test ORION RC 10" with 2x Barlow f=4000mm. Guiding at f=2000mm approx. 0.5-0.6 arcsec/SUB. Distortions (star elongation) and vignetting are noticeable in the corners.
Technical information
- Telescope/Lens
- Orion 10-inch f/8 RC Telescope
- Camera
- QHY163M
- Mount
- EQ6R-PRO
- Guide Scope
- Astromania OAG
- Guide Camera
- QHY5III290M
- Accessories
- Zhumell 2" 2x ED Barlow ~ 70 mm, L-Pro Filter
- Software
- SharpCap, DeepSkyStacker
- Location
- Frisco, United States
Light pollution
Red, Bortle 7 zone
Exposure
- 15 × 120″ · ISO/Gain: 264 · Offset: 64
Total exposure: 30 m
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