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I managed to get some time to process another of my images exposed in January/February 2020.
This was the last image when my USB port on my Astro40D failed. This happened while imaging this scene but it happened toward the end of the imaging plan so I got almost the subs that I wanted. The total exposure time was 16 hours and 16 minutes in ISO1600 for all of the subs, RGB, (OSC through the UV/IR Cut filter), HAlpha and OIII.
Imaged through my 8" SCT at f6.3, 1280mm FL.
By Alfredo Beltran
This is my version of the Rosette nebula using the Hubble and taken with the ASI071 OSC camera. Telescope was a C925 EdgeHD with Hyperstar lens.
Exposure time: 4hr 50 min in total at unity gain
2hr 00 min (24 x 5 min) Ha
1h 15 min (55 x 5 min) OIII
1hr 35 min (19 x 5 min) SII
This setup is awesome. A few years ago such an image just could’ve been taken with a monochrome ccd.