M 33 (Triangulum Galaxy)

Third largest member of the Local Group of galaxies, M 33 is a spiral galaxy situated approximately 3 million light years from Earth in the constellation Triangulum. It is catalogued also NGC 598. Its visual magnitude is 5.7m, and its apparent size is about 70 x 40'. Hovering the mouse cursor over the image will show the small object names. Clicing on the image wiil show a higher res image.


Technical Details:

Optics: ASA 12 " Astrograph at /6.3
Mount: ASA DDM mount
Camera: SBIG STL 11000 M
Filters: Baader 8nm Ha filter; Astronomik LRGB filter set
Dates/Times: 12 September 2010; 6 August 2011
Location: National Observatory Rozhen
Exposure Details: Ha = 75 min, L = 50 min, R = 30 min, G = 30 min, B = 30 min.
Subexposures: Ha = 15 min, LRGB = 10 min
Acquisition: CCD Soft
Processing: PixInsight, Photoshop CS

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