M33 Triangulum Galaxy with Additional Ha & OIII (Douglas J Struble)

Celestial hemisphere: Northern · Constellation: Triangulum (Tri) · Contains: IC 132 · M 33 · NGC 595 · NGC 598 · NGC 604 · Triangulum Galaxy · Triangulum Pinwheel

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M33 Triangulum Galaxy with Additional Ha & OIII

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M33 Triangulum Galaxy with Additional Ha & OIII

The base of this M33 image was captured in 2017; one year into starting astrophotography. In 2020 I went deep in capturing Ha and OIII isolating the nebula within M33. I decided to combine data from both projects this year, but did not like my stars back from 2017, so I captured new RGB stars and added that to the mix. Processing all that into a single image was a bit of a chore.

The Triangulum Galaxy is a spiral galaxy approximately 3 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598. The Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Milky Way and the Andromeda Galaxy. It is one of the most distant permanent objects that can be viewed with the naked eye.

The galaxy is the smallest spiral galaxy in the Local Group and it is believed to be a satellite of the Andromeda Galaxy due to their interactions, velocities and proximity to one another in the night sky. It also has an H-II nucleus.

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Description: Sky's Up Magazine January 2024

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M33 Triangulum Galaxy with Additional Ha & OIII

M33 Triangulum Galaxy with Additional Ha & OIII

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M33 Triangulum Galaxy with Additional Ha & OIII

M33 Triangulum Galaxy with Additional Ha & OIII

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