Explanation: M33 is a prominent nearby spiral galaxy, M33 is one of the larger members of the Local Group dominate of two massive spiral galaxies: M31 and our Milky Way. M33 is the only other spiral galaxy known in the Local Group. At 3 million light-years, is the second closest galaxy and is thought by some to be a satellite galaxy to massive M31. M33 is close enough to appear twice the angular size of the full moon, when viewed with binoculars.
Optic: Meade ACF 10″ f 6.3
Tot. Exp: LHa 19.93 hours. unb. (Baader UHC flt.); Ha 9.3 hours
RGB: R 90 min; G (R/B); B: 148 min.
CCD : Sbig ST8300 (cooled -15° C.)
Mount: Orion Atlas EQ-G
reworked close up