NGC 7293 Helix Nebula
NGC 7293 is a planetary nebula in the constellation Aquarius. It is 650 light years from Earth.
TARGET
Nomenclature: NGC 7293, Helix Nebula,
Right Ascension: 22:29:38.55
Declination: -20:50:13.6
Size: 16 arc min (central part), 25 arc min (outer part)
Discovery: Karl Ludwig Harding, probably before 1824
EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters
IMAGE CAPTURE
5nm Ha: 41x200 bin 2x2
3nm OIII: 50x300 bin 2x2
Luminance: 41x300 bin 1x1
Red: 17x300 bin 1x1
Green: 17x300 bin 1x1
Blue: 17x300 bin 1x1
Total integration: 15.2 hours
Pixel scale: 0.534 arcsec/pixel
Field radius: 0.350 degrees
Capture dates: 19 August - 9 September 2018
Capture location: Alcalali, Spain
5nm Ha: 41x200 bin 2x2
3nm OIII: 50x300 bin 2x2
Luminance: 41x300 bin 1x1
Red: 17x300 bin 1x1
Green: 17x300 bin 1x1
Blue: 17x300 bin 1x1
Total integration: 15.2 hours
Pixel scale: 0.534 arcsec/pixel
Field radius: 0.350 degrees
Capture dates: 19 August - 9 September 2018
Capture location: Alcalali, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2