Arp 188
British Astronomical Association Picture Of The Week 15 May 2021
Awarded APOD GrAG Image Of The Day apod.grag.org/2021/06/01/arp-188-the-tadpole-galaxy/
Arp 188 is a disrupted barred spiral galaxy located 420 million light-years from Earth in the constellation of Draco. Its most dramatic feature is a massive trail of stars about 280,000 light-years long; the size of the galaxy has been attributed to a merger with a smaller galaxy that is believed to have occurred about 100 million years ago.
Picture





TARGET
Nomenclature: Arp 188, The Tadpole Galaxy
Right Ascension: 16:06:03.9
Declination: 55:25:32

EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters
IMAGE CAPTURE
Luminance: 124x300 bin 1x1
Red: 11x300 bin 1x1
Green: 12x300 bin 1x1
Blue: 11x300 bin 1x1
Total integration: 13.2 hours
Pixel scale: 0.265 arcsec/pixel
Field radius: 0.188 degrees
Capture dates: 1-5 May 2021
Capture location:  Fregenal de la Sierra, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2