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Contains:  IC 1275, NGC 6559, IC 1274, IC 4685, IC 4684, NGC 6530, M 8, Lagoon nebula, Hourglass nebula, NGC 6523, NGC 6526, The star 11Sgr, The star 9Sgr, The star 7Sgr, The star 4Sgr
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M8 mosaic with surrounding IC 4685, 


            Sven Hoffmann
M8 mosaic with surrounding IC 4685

M8 mosaic with surrounding IC 4685

Technical card

Resolution: 8720x3238

Dates:July 19, 2017July 30, 2017Aug. 14, 2017

B: 51x120" (gain: 75.00) -20C bin 1x1
G: 51x120" (gain: 75.00) -20C bin 1x1
R: 65x120" (gain: 75.00) -20C bin 1x1

Integration: 5.6 hours

Darks: ~16

Flats: ~16

Bias: ~16

Avg. Moon age: 17.96 days

Avg. Moon phase: 41.97%

Bortle Dark-Sky Scale: 5.00

Mean FWHM: 5.00

Temperature: 20.00 job: 1704310

RA center: 271.791 degrees

DEC center: -24.127 degrees

Pixel scale: 1.408 arcsec/pixel

Orientation: 8.504 degrees

Field radius: 1.819 degrees

Data source: Backyard


Well this year it bit me and I really wanted to make a solid M8 image. The difficulty being that it only rises to about 10-12 degrees above the horizon in Germany. Despite all this craziness I wanted to try it. To be honest with you I had to fight with the data for a long time. I think I'll just leave it be for now as I won't get more/better data this year. So this is it then and I humbly present to you my attempt at making a good image out of it. To save my sanity I will try and stay away from low altitude targets for a while :D



Sven Hoffmann
License: None (All rights reserved)

Sky plot

Sky plot


M8 mosaic with surrounding IC 4685, 


            Sven Hoffmann

In these public groups

Cloudy Nights