1100mm/F7.3 telescope
Moravian C5A-100M cooled CMOS camera: 4.7 hr
Pentax 645z (astro-modified): 8.7 hr
two-frame mosaic
total exposure time = 13.4 hr

see www.astrobin.com/yikgf8/ for more technical details.

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Rigel is a bright 0-th magnitude star. It's so bright that the faint nebulas around it are hidden by the bright halo of Rigel. In this picture, the halo of Rigel is removed in post-processing, so the nebulas can be better seen.

644 mm/F7 telescope
Fujifilm GFX-50R (astro-modified)
Fujifilm GFX-100S (astro-modified)
Total exposure time: 10 hr

see www.astrobin.com/bj3lc5/ for more technical details.

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3454mm/F6.8 astronomical telescope
Moravian C5A-100M cooled CMOS camera
total exposure time = 24.3 hr

see www.astrobin.com/9kb7oe/ for more technical details.

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3454mm/F6.8 astronomical telescope
Moravian C5A-100M cooled CMOS camera
total exposure time = 15.3 hr

see www.astrobin.com/uwdiy2/ for more technical details.

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3454mm/F6.8 astronomical telescope
Moravian C5A-100M cooled CMOS camera
total exposure time = 13.2 hr

see www.astrobin.com/s5f646/0/ for more technical details.

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