Ou 3
When Renauld and Olivier Coppe (2 Belgian amateur astronomers) asked me to image their discovery of a probable planetary nebula (Cop 2) I didn't realise the proximity to another planetary nebula - Ou 3. Ou 3 is a confirmed planetary nebula discovered by French amateur astronomer Nicolas Outters.
The first images revealed that Ou 3 was within the field of view.
So I recentred the imaging to be between the two targets.
Subsequently a small possible planetary nebula was found in the top left hand corner of the image (PNG 059.3+01.0)
Picture





TARGET
Nomenclature:  Ou 3, Cop 2, PNG 059.3+01.0
Right Ascension: 19:37:44.69
Declination: +23:41:09.16
Size: 90 arc seconds (Ou 3), 60 arc seconds (Cop 2)
Discovery: Nicolas Outters, Renaud and Olivier Coppe

EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
OIII 3nm: 129x900" bin 1x1
Ha 5nm: 148x900" bin 1x1
Red: 40x300 bin 1x1
Green: 40x300 bin 1x1
Blue: 37x300 bin 1x1
Total integration: 79 hours 15
Pixel scale: 0.530 arcsec/pixel
Field radius: 0.376 degrees
Capture dates: 9 May - 27 June 2023
Capture location:  Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Ha image:
OIII image: