Messier 57
The Ring Nebula. Planetary Nebula, Lyra
Click image for larger view

AstroPhysics 175EDF f8
AP 3600GTO "El Capitan"
SBIG STT-8300
SBIG FW8G
(Guided Filter Wheel)
June 2015. Cave Creek Canyon Observatory, Arizona Sky Village
Equipment:

Telescope:
Mount:
Camera:
Guider:
Filters:

- Luminance (Astrodon) 10x10 mins    = 100 mins
- Red
(Astrodon) 12x10 mins                 = 120 mins
- Green
(Astrodon) 12x10 mins             = 120 mins
- Blue
(Astrodon) 12x10 mins                = 120 mins
 
Total Exposure Time =  7h 50m
Details:
Data Imaged remotely over 2 nights (Jun 13 & 14, 2015).
Cropped version. See below for full-field view


2015, David A. Churchill