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Kronberger 50
Hampshire Astronomical Group Picture of the Month, March 2020
Published in Astronomy Now Magazine April 2020

Kronberger 50 is a circular filamentary planetary nebula in the constellation Cepheus. This is by far the faintest target I have ever imaged. I can find no other images of it online, so I believe that this is the first time that it has been imaged in colour.
Picture
TARGET
Nomenclature
:  Kn 50, Kronberger 50
Right Ascension: 23:54:11.3
Declination: -+74:55:34
Size: 3 arc min
Discovery: Matthias Kronberger in October 2007

EQUIPMENT USED
Twin APM TMB LZOS 152 refractors
10Micron GM2000 HPS mount
Twin QSI6120 CCD cameras
Astrodon filters
IMAGE CAPTURE
5nm H-Alpha: 52x1800 bin 3x3
3nm OIII: 32x1800 bin 4x4
Red: 22x300 bin 1x1
Green: 22x300 bin 1x1
Blue: 20x300 bin 1x1
Total integration: 47.3 hours
Pixel scale: 0.533 arcsec/pixel
Field radius: 0.369 degrees
Capture dates: 29 December 2019 - 21 February 2020
Capture location:  Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Click here for a larger version
Picture
Ha image
Picture
OIII image

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