M 57
The Ring Nebula in Lyra.
An unusually bright and conventional target for me (something to keep me occupied when the moon is up!).
I chose not to overstretch the outer halo as I wanted to maintain some dynamic range.
An unusually bright and conventional target for me (something to keep me occupied when the moon is up!).
I chose not to overstretch the outer halo as I wanted to maintain some dynamic range.
TARGET
Nomenclature: M 57, The Ring Nebula, Messier 57, NGC 6720
Right Ascension: 18:53:35.08
Declination: +33.01.45.03
Size: 230 arc secs
Discovery: Charles Messier in 1779
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
Nomenclature: M 57, The Ring Nebula, Messier 57, NGC 6720
Right Ascension: 18:53:35.08
Declination: +33.01.45.03
Size: 230 arc secs
Discovery: Charles Messier in 1779
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
Blue: 7x300"
Green: 8x300"
Red: 10x300"
Lum: 96x10"
Ha: 245x60" bin 1x1
OIII: 363x60" bin 1x1
Total Integration: 12 hours 29 minutes
Pixel scale: 0.530 arcsec/pixel
Field radius: 0.370 degrees
Capture dates: 27 July - 4 August 2021
Capture location: Fregenal de la Sierra, Spain
Blue: 7x300"
Green: 8x300"
Red: 10x300"
Lum: 96x10"
Ha: 245x60" bin 1x1
OIII: 363x60" bin 1x1
Total Integration: 12 hours 29 minutes
Pixel scale: 0.530 arcsec/pixel
Field radius: 0.370 degrees
Capture dates: 27 July - 4 August 2021
Capture location: Fregenal de la Sierra, Spain
IMAGE PROCESSING:
CCDStack 2
Photoshop CS2
CCDStack 2
Photoshop CS2