NGC 7139
NGC 7139 is a bright planetary nebula in the constellation of Cepheus.
Image captured on my dual rig in Spain during full moon.
TARGET
Nomenclature: NGC 7139
Right Ascension: 21:46:09
Declination:  +63:47:30
Size: 1.4 arc min
Discovery: William Herschel on November 5, 1787
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
5nm H-Alpha: 7 x1800 bin 1x1 and 48x900 bin 1x1
3nm OIII: 48x900 bin 1x1
Red: 16x300 bin 1x1
Green: 17x300 bin 1x1
Blue: 20x300 bin 1x1
Total integration: 36.8 hours
Pixel scale: 0.533 arcsec/pixel
Field radius: 0.284 degrees
Capture dates: 4-9 August 2020
Capture location:  Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2