M33: Triangulum Galaxy

60,000 light-years wide and 2.7 million light-years away, the Triangulum Galaxy is the third largest member of the Local Group and the second closest spiral galaxy to us (beat only by the Andromeda Galaxy). With an apparent magnitude of 5.7, the Triangulum Galaxy, or M33, is one of the furthest objects we can see with the unaided eye; however, this is only possible under extremely dark skies and with very little atmospheric disturbance. Fortunately (or unfortunately?), the galaxy is approaching the Milky Way at roughly 100,000 km/hr and will collide with our galaxy in roughly 4 billion years, which should give us a much closer view!

Acquisition Date: November 18-27, 2022

Acquisition Site: San Carlos, CA

Subframes: L 84 x 300s (1×1 binning), R 36 x 300s (2×2 binning), G 36 x 300s (2×2 binning), B 36 x 300s (2×2 binning), Ha 37 x 300s (1×1 binning), 19 hours 5 minutes total integration

Equipment: Takahashi FSQ-106EDXIII, QHY600M-PH, Astro-Physics 900GTO, Baader LRGB, Chroma 3nm Ha

Software: Sequence Generator Pro, PHD2, PixInsight, Apple Photos