The Triangulum Galaxy (M33) is a spiral galaxy 2.7 million light-years away. It is the 3rd biggest galaxy in our galactic neighborhood (after the Andromeda Galaxy and our own Milky Way galaxy).
It is home to about 40 billion stars (10-40% as many as our Milky Way) and many active star forming regions (seen here in red colour).
The latest results from ESA's Gaia mission (2019) seem to confirm that the Triangulum Galaxy is interacting with the Andromeda Galaxy and both will later merge with our own Milky Way galaxy (in about 4.5 billion years).
This image is the result of combining 7 hours of colour and 2 hours of H-alpha data I collected in late 2019, in questionable conditions.
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Total imaging time: 9 hours (135x180" in colour, 27x300" in H-alpha)
Telescope: Sky-Watcher Evostar ED80 Black Diamond
Camera: ZWO ASI294MC Pro
Mount: Celestron AVX