I revisited an old favorite for my first quick test with my new Takahashi FSQ-106EDX4.
23 x 600 second integrations, Baader Hydrogen-Alpha filter, FSQ-106EDX4 @ f/5, SBIG ST-8300 with FW5 filter wheel, processed with PixInsight.
I have a post that shows the internals and disassembly of this camera and filter wheel here:
https://www.astroturtle.com/2025/12/sbig-st-8300m/
My first shot of the Rosette Nebula with my new set of Baader narrowband filters.
The image was combined using SII (ionized sulphur) for the red channel, Ha (hydrogen alpha) for the green channel and OIII (ionized oxygen) for the blue channel. This combination is known as the “Hubble Palette” and is the same method used by NASA for the famous Pillars of Creation image.
I have a post that shows the internals and disassembly of this camera and filter wheel here:
https://www.astroturtle.com/2025/12/sbig-st-8300m/
The exposure breakdown is:
Ha 25 x 10 min
OIII 34 X 10 min
SII 33 x 10 min
For a total exposure time of about 15 hours.
AstroTech AT65EDQ telescope, Losmandy G11 mount, SBIG ST-8300M camera + FW5 filter wheel, Baader Narrowband filter set.
