ASTRO:
     type=Barred Galaxy
     const=Ursa Major
     mag=9.8
     dist=83 M ly
     size=170 k ly
IMAGE:
     location=Emerald Bay community, Lake Palestine, Texas
     BrtlCls=4
     moon=14% WnCr
     exposure=CMOS OSC:  59x180s  (3.0h), G100
EQUIPMENT:
​     optics=ES102CF APO / Hyperion 24mmEP (afocal) 1.7x, FL(eff.)=1238mm, f(eff.)/12.1
     camera=ZWO ASI2600MC-Pro
     filter=Optolong L-Pro LPS
     mount=Celestron AVX
     guiding=Orion 60x240mm, ZWO ASi224MC
SOFTWARE:
     acquisition=NINA, PHD2
     processing=PixInsight (RCAstro), Photoshop (WebSharp-Pro), LrC

Messier 109 (or, M109) is a barred spiral galaxy in the constellation Ursa Major; its luminous central bar and softly sweeping arms forming a composition of remarkable balance and grace.  Often nicknamed the “Vacuum Cleaner” galaxy — presumably because its elongated central bar looks ready to tidy up the cosmic carpet — M109’s delicate spiral structure reflects ongoing star formation, while its warm, golden core and bar-structure hint of an older general population of stars.  Dust lanes drift across the galaxy's disk in graceful symmetrical curved arcs, giving the entire system a sense of motion suspended in time.

Scientifically, M109 lies about 83 M ly from Earth and spans roughly 170,000 ly across, making it of the same appx scale as our home Milky Way galaxy.  Its stars orbit the galactic center at speeds approaching 250 km/s, and its total mass is estimated at around 1 T solar masses.  These extraordinary numbers underscore the scale of its serene appearance, revealing a system that is both immense and intricately organized.

M109 stands as a reminder that even across cosmic distances, structure and beauty emerge naturally from the interplay of gravity, light, and time — and that we amateurs sometimes have a penchant for naming God's masterpieces with a sense of humor.

260513 - M109 "Vacuum Cleaner" galaxy