M33 – Triangulum Galaxy & its hydrogen and oxygen nebulae

APOD NASA-GOV 30 Gen 2025 – https://apod.nasa.gov/apod/ap250130.html

The Triangulum Galaxy is a spiral galaxy 2.73 million light-years (ly) from Earth in the constellation Triangulum. It is catalogued as Messier 33 or NGC 598. With a diameter of 61,100 light-years, the Triangulum Galaxy is the third-largest member of the Local Group of galaxies, behind the Andromeda Galaxy and the Milky Way.
This is my first photo with the new telescope: Newton Tecnosky Carbon 200/800. I collected 18 hours of broadband signal and 9 hours with the Ultimate filter, under the skies of the Italian mountains. My aim was to highlight the beautiful and numerous hydrogen and oxygen nebulae that characterize this subject. Therefore, I invite you to zoom in on the image and literally fly into it, to enjoy the profound details of the entire galaxy.

Instruments:
Scope: Tecnosky Carbon 200/800 – F/4
Mount: Ioptron Gem45
Camera: ZWO ASI2600MC at -15°C.
Guide: ZWO OAGL + ZWO Asi120 mini
ZWO Asiair Plus
Software: Pixinsight, Photoshop

Exposure Time:
RGB: 18 Hours (300” each frame).
Optolong Ultimate 2”: 9 Hours (300” & 600” each frame).
Tot: 27 Hours.

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