|Triangulum Galaxy M33 - DSLR
The Pinwheel Galaxy, M33, floats 2.3 million light years away, at the same distance as the Great Andromeda Galaxy. Its diameter of 50,000 light years is only a third of the
Andromeda Galaxy, so it appears substantially smaller through binoculars and telescopes. Nonetheless, even a small telescope at a dark site can detect the spiral arms. In this
detailed photograph, one can see a nebula, called NGC 604, at the 9:00 position from the nucleus of the galaxy. This region of hydrogen gas glows red, illuminated by 200 young
huge bright stars at its center. Although this nebula seems small in this image, NGC 604 is intrinsically 50 times larger than the famous Orion Nebula, but resides 2000 times
farther away in neighboring galaxy.
The DLSR image above was obtained with a Canon 6D DSLR through an Astro-Physics 12" f/3.8 astrograph. Twenty 5-minute exposures were combined, for a total exposure
time of 100 minutes.
The CCD image below was obtained with a QSI-583wsg camera using a Lodestar guider, through a TEC140 refractor at the Hidden Lake Observatory. Twelve unbinned
10-minute clear luminance exposures were combined with 4 10-minute exposures through each of red, green, and blue filters binned 2 x 2. Total exposure time was 4 hours.
Music is Picard's Flute from Star Trek