The image was created by stacking a total of 6304 individual exposures, each lasting 2.5 seconds.
• Total exposure time: 4 hours 22 minutes 40 seconds
• Location: Istanbul
• Camera: Samsung NX3000
• Field size: 6°43,47’ by 4°29,72’ (6,7245° x 4,4954°)
• Image scale per pixel: 4,4”/px. (4,4 arcseconds per pixel)
• Visual magnitude of the faintest stars that can be distinguished: about 14,8 to 15,0
• Bortle dark sky scale: 9
• Total number of exposures taken before manual extraction of poor-quality frames (due to out of-focus-images, camera shake, corrupted files, low SNR at low altitudes above horizon, clouds, artificial objects, etc.): 9047 ± 400 frames
• Telescope: None
• Mounts – tracking: None
• Astronomical filters: No filters used - broadband imaging with a one-shot color camera
• Calibration frames: 50 dark, 50 bias, 50 flat frames
• Temporary disk space required by DeepSkyStacker to calibrate and stack 6304 frames: 768,3 GB
• Disk space taken up by 6304 exposures: 121,96 GB
• Date of shooting: between 22 November 2020 and 12 April 2021 (Over 80% of the images were taken in February and March; 3118 in March, 2156 in February, 607 in April, 311 in December, 102 in January and 10 in November.)
• Shooting hours: 20:20 - 03:44 UTC+03:00
• Temperature (during the shooting dates and times specified): Ranges between -1°C and 14°C
More info at:
•
https://docs.google.com/document/d/1qf1xxZ5-jSYj9K0WtgdA0jM4QWDhyvbf/edit•
https://www.youtube.com/watch?v=vm7j81Bwuy0Other versions of this image:
•
https://www.flickr.com/photos/190647355@N06/
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