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The Triangulum galaxy, M33, is located in the northern constellation Triangulum. As seen from Earth it has a really wide angular size thanks to its proximity to our Milky Way. M33 is over 50,000 light-years in diameter, and it’s located some 3 million light-years away from the Solar System, third largest in our Local Group of galaxies after M31 and the Milky Way.
If we inspect the image closely we can see tens of small blue clusters of stars. The pinkish regions are shown thanks to the use of a Ha filter that captures the emission data from these HII active star forming regions. The most apparent of those regions is NGC 604, the brightest in this galaxy (bottom left of the image).
To capture this colorful image I used my dual Takahashi setup. I gathered data from both FSQ’s (FSQ85 and FSQ106), but I only processed the data from FSQ85 in an exercise to see the performance of my full set of Baader filters (LRGBHa). I would like to specially thank Valkanik astronomy shop for their support with the testing of these filters.
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HD image.
Support my work. If you want to help me continue with my work, please feel free to buy, just for a few pennies, one or several of my images. The price does not reflect the amount of effort involved in each one of the images. Some of them implied weeks, months and even years of hard work. With your purchase I will be able to continue capturing photons of our amazing universe.
The watermark, with the author’s original credit, cannot be removed in any of the uses. For a commercial use without this watermark please contact me for a detailed budget.
All images, videos and content of this website are copyrighted © Aleix Roig Mateu. www.astrocat.info
FSQ85:
L: 44×300″
Ha: 49×300″
RGB: (15,15,15)x300″
Calibrated with darks, flats and dark-flats.
Total exposure: 9h15′
Moon at 10% (on average)
Image resolution: 2.12”/pixel
FSQ85 + ASI294MM + SHO LRGB Baader filters – with ZWO EFW 8 pos
Mesu200 mount
Guiding with ASI120MM and ZWO Mini Guide Scope
SGP, PHD2, APP, PIX, LR, PS, TPZ.
Aleix Roig, January 2022
Prades (Tarragona, Catalonia – Spain).
Full HD image on Astrobin:
| Image use | Non-commercial use, Commercial Use |
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