04/17/2026
NGC2903 A Barred Spiral Galaxy in Leo and NGC2916
Captured in Florissant, CO – Apr 2026
I thought 30 million light-years was far, but check out PGC27249 at 590 million light-years away. Others in the picture are farther away. I’ll put an annotated picture in the comments. Look up a few.
NGC 2903 is a bright barred spiral galaxy in Leo, about 30 million light-years from the Milky Way.
• Discovered by William Herschel in 1784
• Later identified as a spiral by William Parsons, 3rd Earl of Rosse
• Classified as SBbc (barred spiral with moderately tight arms)
Key features:
• Strong central bar feeding gas inward
• Active starburst core forming ~0.7 solar masses/year
• Most stars lie in the outer disk; bulge stars are older
• No active galactic nucleus
The small galaxy to the right of NGC 2903 is NGC 2916 is a spiral galaxy (type Sb) located roughly 162–193 million light-years away in the constellation Leo. Discovered by William Herschel on February 24, 1784, this system features a bright core and well-defined spiral arms, appearing with a magnitude of 12.1 in the constellation Leo.
Above NGC 2916 is PGC27249 (small horizontal line) - Based on its recessional velocity of the galaxy PGC27249 is approximately 590 million light-years away. This distance measurement is derived from the expansion of the universe, where higher velocities generally correspond to greater distances.
[Wiki, AI]
• Sky Watcher EQ6-R Pro Equatorial Go-To Mount
• ZWO ASIAir Pro Wireless Imaging Controller
• ZWO 30 mm f/4 Mini Guide Scope
• ZWO ASI120MM Mini Monochrome CMOS Camera
• ZWO ASI2600MM Pro USB 3.0 Cooled Mono Astronomy Camera
• ZWO 7-Position Electronic Filter Wheel for 2-Inch Filters
• ZWO 5V EAF (Electronic Automatic Focuser)
• Explore Scientific 127mm FCD100 f/7.5 ED APO Triplet Refractor (BACK-FOCUS 17.5mm)
• Explore Scientific 3" Field Flattener/0.7x Focal Reducer
• Filter set: Astronomix Deep-Sky Luminescence, R, G, B, L, Ha, OIII, SII
Shots (24 hours):
• 39 Blue, 121 gain, 300 seconds
• 68 Green, 121 gain, 300 seconds
• 71 Red, 121 gain, 300 seconds
• 109 Luminescence, 121 gain, 300 seconds
Processed in:
• PixInsight
• Lightroom