M 13
British Astronomical Association Picture Of The Week 14 March 2020
Published in Astronomy Now Magazine January 2021
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
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
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2