M33 – The Triangulum Galaxy

M33 – The Triangulum Galaxy

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M33 gets its name from the Triangulum constellation in which it can be found.  At magnitude 5.7, it can be seen with the naked eye under the right conditions and is located about 3 million light years away — slightly farther than the larger and more prominent neighbor, the Andromeda Galaxy, and quite a bit smaller, too — about 40 billion stars, about 1/5 the size of the Milky Way.

Taken with a DSLR (Canon T4i).  17 360s exposures, using a Edge 11″ SCT with .7x reducer (1900mm focal length).

M33 at a focal length of 1900mm (Annotated)
M33 at a focal length of 1900mm (Annotated)

 

Resolution ........ 0.450 arcsec/pix
Rotation .......... -76.336 deg
Focal ............. 2060.63 mm
Pixel size ........ 4.50 um
Field of view ..... 38' 27.2" x 25' 10.8"
Image center ...... RA: 01 33 40.920  Dec: +30 37 57.77