The Denver Astronomical Society Astrophotography Special Interest Group (ASIG) May Member Gallery

Each month, the Astrophotography Special Interest Group (ASIG) of the Denver Astronomical Society gathers to share one of the most inspiring parts of our hobby—the images we’ve captured of the night sky. From stunning galaxies and colorful nebulae to detailed views of the Moon and planets, members present their latest work, talk through how the images were created, and exchange tips, techniques, and stories from behind the lens. It’s a chance to celebrate progress, learn from one another, and stay motivated under the stars.

Chris Hamlin

Messier 82 (The Cigar Galaxy) in LRGBHa – I captured this data in the first (very moonlit) week of March 2026 with my C11 at f/6.3 on a ASI533MM camera and ZWO AM7 mount which is performing extremely well. Total integrations: L=5.75 hrs, roughly 2 hrs each for RGB, 6.7 hrs for Ha.

Messier 1 (The Crab Nebula) in HOO – C11 at f/6.3 and ZWO ASI533MM Pro camera. Ha and OIII filtered images taken in early March 2026. I was planning on capturing about 14 hours of data but was only able to get 3 ¾ hours of integration time before a long stretch of bad weather came through and after that it was setting too early for my location (for this year).

Messier 1 (The Crab Nebula) by DAS member Chris Hamlin

Rami

NGC 2174 (Monkey Head Nebula) – 7.5h 2600MC + Sv240 Dual narrowband filter + 1h 2600MM Ha (antlia pro) – 12″ newt @ f3 via starizona nexus

IC 405 (Flaming Star Nebula) – ~4.5h 2600MC + Svo240 dual narrowband filter + 1h 2600MM Ha (antlia pro) – 12″ newt @ f3 via starizona nexus

IC 405 (Flaming Star Nebula) by DAS member Rami

Messier 33 (Triangulum Galaxy) – 1.5h sony a6700 from KDDSS + 1h Ha 2600MM from home (antlia pro) – 12″ newt @ f3 via starizona nexus

Messier 33 (Triangulum Galaxy) by DAS member Rami

NGC 2244 (Rosette Nebula) – 9.5h sony a6700 + 3h 2600MC + sv240 Dual narrowband blended for SNR – But green tint came in with star addition – 12″ newt @ f3 via starizona nexus

NGC 2244 (Rosette Nebula) by DAS member Rami

Steven Emenhiser

NGC 2359 (Thor’s Helmet Nebula)

Messier 33 (Triangulum Galaxy)

Messier 42 (The Great Orion Nebula) and NGC 1977 (The Running Man Nebula)

NGC 6960 (The Veil Nebula)

Kevin Schill

IC 434 (Horsehead Nebula) – Taken in March from RMNP

NGC 2244 (Rosette Nebula) – Taken in March from RMNP

NGC 2244 (Rosette Nebula) by DAS member Kevin Schill

Trey Cook

NGC 2244 (Rosette Nebula) – April 6-7, 2026, From my backyard in Lakewood – Seestar S30 Pro Smart Telescope – 2 hours data, 20 second exposures – Processed in Siril and Photoshop

Sam Faulkner

NGC 7023 (Iris Nebula) – Stretched with SetiAstro statistical stretch and Uri Darom’s iHDR stretch.

Tommy Lease

Messier 106 – 47 hours of integration using a dual-scope setup:Two 10″ f/4 Newtonian telescopesDual ZWO ASI 2600MM Pro camerasAntlia 36mm Ha + LRGB filtersMounted on Sky-Watcher CQ350 & EQ6-R Pro

Messier 101 (The Pinwheel Galaxy) – Captured from my backyard in Elizabeth, Colorado using a dual-scope setup, this image represents 22 hours of total integration: Dual 10″ f/4 Newtonian’s – RGB (12 hrs): ASI2600MC Pro – Ha (10 hrs): ASI2600MM Pro + Antlia 36mm Ha

Messier 101 (The Pinwheel Galaxy) by DAS member Tommy Lease

Sh2-174 (The Valentines Rose) – 38 hours of Ha, OIII, and LRGB data captured from my backyard in Elizabeth, Colorado using dual 10” f/4 Newtonians, dual ASI2600MM Pro cameras, Antlia 36mm filters, and EQ6-R Pro / Sky-Watcher CQ350 mounts.