05/31/2026
Turn your telescope toward the handle of the Ursa Major constellation’s famed Big Dipper asterism, and you will find yourself in the neighborhood of a true galactic beauty.
The massive Pinwheel Galaxy is a flashy spiral galaxy that is about 70 percent larger than our own Milky Way galaxy and is home to an estimated trillion stars. Its face-on orientation means it has low surface brightness so it takes a large telescope to image its well-defined arms.
Although it looks like a lonely glow in the inkiness of space, Messier 101 actually has multiple smaller companion galaxies, which have contributed to its asymmetrical shape through gravitational interactions.
📷 Astrophotographers: Donnie and Donna Houston
🔭 Telescope: Explore Scientific FCD100 Series ED127 Air-Spaced Triplet Refractor in Carbon Fiber
Mount: Pier-mounted Explore Scientific Losmandy G11
Camera: ZWO2600mm
Filters: 3nm Ha, plus LRGB narrow band and broad-band combo
Acquisition time: 10 plus hours