M51
Featured on BBC The Sky At Night 10 February 2019
The Astroimaging Channel Image Of The Week 18 June 2018
Featured on BBC The Sky At Night 10 February 2019
The Astroimaging Channel Image Of The Week 18 June 2018
M51 is an interacting grand design galaxy in the constellation Canes Venatici. It is 23 million light years from Earth. Its companion is NGC 5195.
TARGET
Nomenclature: M51, M51a, M51b, Messier 51, NGC 5194, NGC 5195, Whirlpool Galaxy
Right Ascension: 13:29:52.7
Declination: +47:11:43
Size: 11 arc min
Discovery: by Charles Messier on 1 October 1773
EQUIPMENT USED
APM TMB LZOS 152 refractor
10Micron GM2000 HPS mount
QSI6120 CCD camera
Astrodon filters
IMAGE CAPTURE
5nm Ha: 8x1200 bin 1x1
Luminance: 39x900 bin 1x1, 59x300s bin 1x1
Red: 20x300 bin 1x1, 14x600 bin 1x1
Green: 20x300 bin 1x1, 14x600 bin 1x1
Blue: 20x300 bin 1x1, 14x600 bin 1x1
Total integration: 29.3 hours
Pixel scale: 0.534 arcsec/pixel
Field radius: 0.370 degrees
Capture dates: 24 May - 25 June 2018
Capture location: Alcalali, Spain
5nm Ha: 8x1200 bin 1x1
Luminance: 39x900 bin 1x1, 59x300s bin 1x1
Red: 20x300 bin 1x1, 14x600 bin 1x1
Green: 20x300 bin 1x1, 14x600 bin 1x1
Blue: 20x300 bin 1x1, 14x600 bin 1x1
Total integration: 29.3 hours
Pixel scale: 0.534 arcsec/pixel
Field radius: 0.370 degrees
Capture dates: 24 May - 25 June 2018
Capture location: Alcalali, Spain
IMAGE PROCESSING
Pre-processing: CCDStack2
Post-processing: Photoshop CS2
Pre-processing: CCDStack2
Post-processing: Photoshop CS2