M 13 British Astronomical Association Picture Of The Week 14 March 2020 Published in Astronomy Now Magazine January 2021
Messier 13 is a globular cluster of hundreds of thousands of stars in the constellation of Hercules. It is around 24,000 light years from Earth, and approximately 145 light years in diameter. This image was captured during full moon.
TARGET Nomenclature: M13, Messier 13, NGC 6205 Right Ascension: 16:41:41 Declination: +36:27:35 Size: 18 arc min Discovery:Edmond Halley in 1714
EQUIPMENT USED APM TMB LZOS 152 refractor 10Micron GM2000 HPS mount QSI6120 CCD camera Astrodon filters
IMAGE CAPTURE Red: 15x300 bin 1x1 Green: 15x300 bin 1x1 Blue: 12x300 bin 1x1 Luminance: 71x300 bin 1x1 Total integration: 9.4 hours Pixel scale: 0.534 arcsec/pixel Field radius: 0.363 degrees Capture dates: 10-11 March 2020 Capture location: Fregenal de la Sierra, Spain