Abell 33
Awarded Astronomical Picture Of The Day by Astronomia.com apod.astronomia.com/2021/04/11/un-solitario-nel-cosmo/
Awarded Amateur Astronomical Picture Of The Day by AAPOD2 www.aapod2.com/blog/abell-33-the-diamond-ring-nebula
Awarded APOD GrAG Image Of The Day apod.grag.org/2021/05/25/abell-33-the-diamond-ring-nebula/
Awarded Picture Of The Week by the British Astronomical Association 12 June 2021
Abell 33 is a spherical planetary nebula located 2700 light years away in the southern constellation of Hydra. It lies just behind the star HD 83535. The star HD 83535 is responsible for the "diamond ring" effect seen in the photograph
TARGET
Nomenclature: Abell 33, Diamond Ring Nebula
Right Ascension: 09:39:09.1
Declination:  -02:48:31.46
Size: 272 arc sec
Discovery: George Abell in 1955
EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
Blue:6x120", 3x300"
Green: 10x300"
Lum: 10x300"
Red: 10x300"
OIII: 42x900" bin 1x1
Total Integration: 6.4 hours
Pixel scale: 0.265 arcsec/pixel
Field radius: 0.161 degrees
Capture dates: 8 April 2021
Capture location:  Fregenal de la Sierra, Spain

IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2