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Triangulum Galaxy M33 (Broadband + 3nm Narrowband Ha)
The Triangulum Galaxy is a spiral galaxy 2.73 million light-years from Earth in the constellation Triangulum. It is known as Messier 33 or NGC 598.
I obtained almost 6 hours of data over three separate sessions with my William Optics FLT91 + 1.0x flattener, ZWO ASI2600MC Pro camera and ZWO AM5 mount.
In the first two sessions I used the Optolong L-Pro broadband filter to get a broader spectrum of light. This resulted in the image here: flic.kr/p/2p2k291
In the last session I used the Optolong L-Ultimate to get narrowband Ha data. I extracted the RGB channels on both broadband and narrowband, and recombined into LRGB in PixInsight using the Red (Ha) channel from the narrowband session. This highlights the Ha/Red parts of this galaxy much more.
More acquisition details here: astrob.in/50ch11/D/
Triangulum Galaxy M33 (Broadband + 3nm Narrowband Ha)
The Triangulum Galaxy is a spiral galaxy 2.73 million light-years from Earth in the constellation Triangulum. It is known as Messier 33 or NGC 598.
I obtained almost 6 hours of data over three separate sessions with my William Optics FLT91 + 1.0x flattener, ZWO ASI2600MC Pro camera and ZWO AM5 mount.
In the first two sessions I used the Optolong L-Pro broadband filter to get a broader spectrum of light. This resulted in the image here: flic.kr/p/2p2k291
In the last session I used the Optolong L-Ultimate to get narrowband Ha data. I extracted the RGB channels on both broadband and narrowband, and recombined into LRGB in PixInsight using the Red (Ha) channel from the narrowband session. This highlights the Ha/Red parts of this galaxy much more.
More acquisition details here: astrob.in/50ch11/D/