Messier 109 (also known as NGC 3992) is a barred spiral galaxy. It's one of the farthest Messier objects, measuring between 60 and slightly over 100 million light-years away. More than half of all spiral galaxies are barred, including our own Milky Way.
Also appeared on “Starship Asterisk,” the main discussion venue for the Astronomy Picture of the Day (APOD) August 10, 2013.
Date: June, 2010
Location: Green Valley, Arizona
Telescope: Takahashi TOA 130F
Camera: SBIG ST-2000XM
Filters: Astrodon Gen 1
Mount: AstroPhysics 1200
Exposure: LRGB = 390:100:100:100 minutes, all unbinned
Software: Acquisition: Maxim DL 5, TheSky6
Processing: CCDStack, PhotoShop CS3 with various plugins