AstroJosh

AstroJosh Thanks for joining my astrophotography page! I’ll be sharing new deep-sky images regularly, and many will be available for purchase on my Etsy shop.

I appreciate the support—clear skies and stay tuned! Astrophotography with Love and Purpose
How it all started…. Joshua Acosta’s story begins in Waukesha, Wisconsin, where a curious kid found himself constantly looking upward. The night sky wasn’t just a backdrop—it was a place of wonder, comfort, and endless possibility. When his mother placed his first telescope into his hands when he was 10, it

wasn’t merely a gift. It was an invitation. An opening to a universe he never stopped exploring. For years, Joshua lived his passion through the eyepiece, spending quiet nights as a visual observer, learning patience, awe, and humility in the glow of distant stars. But it wasn’t until his early forties—when astrophotography equipment became more accessible—that something inside him reignited. The camera became a new kind of telescope, one that could capture what his heart had always felt but his eyes could never fully hold. With it, astronomy transformed from a hobby into a calling. That calling grew even deeper after he experienced one of the hardest losses of his life. Joshua’s mother—a nurse who devoted over forty years to caring for others, and whose love for animals was as boundless as her compassion—passed away from complications after a stem cell transplant. Her absence left a void, but also a promise. In her memory, Joshua committed himself to something meaningful: that part of his astrophotography proceeds would go to no-kill animal shelters, honoring her lifelong dedication to kindness and care. Every image he creates becomes, in some way, a continuation of her spirit—an echo of the generosity and love she lived by every day. Today, when Joshua photographs the cosmos, he doesn’t just capture nebulae, galaxies, or starfields. He captures a connection. He captures legacy. He captures the feeling of that first telescope in his hands—the feeling his mother gave him, of love, of wonder, of hope, and always having a piece of someone who is no longer is with us....

Here is my latest astrophotography image another globular cluster - Captured the magnificent Messier 13 — also known as ...
05/14/2026

Here is my latest astrophotography image another globular cluster - Captured the magnificent Messier 13 — also known as the Great Hercules Globular Cluster.

This ancient swarm contains hundreds of thousands of stars packed tightly together, located roughly 22,000 light-years away in the constellation Hercules. Every point of light in this image is a star, many older than our own Sun.

Typically these would look “bigger” “closer” in much longer focal length telescopes, but I really like capturing a larger area of the sky to appreciate it with my smaller refractor. I did provide a cropped version so you can appreciate the little galaxy NGC 6207 at the one a clock position. There is another hidden galaxy but it requires some zooming in and trained eye 🧐

🔭 AP 92mm with reducer
📷 ZWO 2600MM broadband chroma filters
⏰ 3hrs total 1hr each in RGB
🧑‍🎨 Pixinsight

Here is my lastest astrophotography photo I decided on M3 - Messier 3 — one of the oldest globular clusters in our galax...
05/11/2026

Here is my lastest astrophotography photo I decided on M3 - Messier 3 — one of the oldest globular clusters in our galaxy, containing hundreds of thousands of stars packed into a sphere roughly 34,000 light-years away.

🔭 AP 92mm with reducer
📷 ZWO 2600mm Chroma broadband filters
⏰ 3 total hrs 1each in RGB
🧑‍🎨 pixinsight



















Here is a reprocess of The Triangulum Galaxy I took back late fall of last year. I focused on improving detail, color an...
04/27/2026

Here is a reprocess of The Triangulum Galaxy I took back late fall of last year. I focused on improving detail, color and stars. I am happy with result.

🔭 astrophysics 92mm F5.3
📸 zwo 2600mm chromo broadband filters
⏰ 2hr in each RGB
🧑‍🎨 Pixinsight

The Triangulum Galaxy is a spiral galaxy 2.878 million light-years (ly) from Earth in the constellation Triangulum.

Here is my latest Astrophotography image. this is only 1hr in each R,G.B channels. Really awful viewed through your cell...
04/13/2026

Here is my latest Astrophotography image. this is only 1hr in each R,G.B channels. Really awful viewed through your cellphone vs desktop view. I also have a closer cropped version.

The third image represents an added 2hrs in each channel for a total of 9. Makes the image pop, with longer integration time

🔭 astrophysics 92mm F5.3
📸 zwo 2600mm chromo broadband filters
⏰ 1hr in each RGB
🧑‍🎨 Pixinsight

Messier 81, also known as NGC 3031 and Bode's Galaxy, is a beautiful spiral galaxy located 12 Million light-years away in the constellation Ursa Major. Messier 82, also known as the NGC 3034 and as the Cigar Galaxy, and is also located 12 million light-years away and is part of the M81 group of galaxies. M82 is an extremely luminous galaxy

After a relentless Wisconsin winter of stubborn clouds and brutal seeing conditions, I finally have something to show fo...
02/16/2026

After a relentless Wisconsin winter of stubborn clouds and brutal seeing conditions, I finally have something to show for it. I started this project in early November, battling months of poor seeing and transparency. It took until February to finally catch the clear skies needed to bring this to life. Here is my latest work on the Flaming Star Nebula, captured in both SHO and HOO palettes.

Telescope: Astro Physics 92mm with Reducer
Mount: AP Mach 1
Camera: ZWO 2600mm with 3nm Chroma Filters
Time: 12hrs HA, 5hrs OIII, 5hrs SII SHO
Time: 12hrs HA, 5hrs OIII HOO
Location: Hartland, WI

"The Flaming Star Nebula (IC 405, Caldwell 31) is a 5-light-year-wide
emission/reflection nebula, located ~1,500 light-years away in the
constellation Auriga. It appears as a swirling, reddish-blue cosmic
fire,, lit by the hot, blue runaway star AE Aurigae, which is moving
through the region."

12/19/2025
12/18/2025

Black aluminum frame with white matted border next GatorBoard next is a Chromaluxe metal print.

Triangulum Galaxy
12/17/2025

Triangulum Galaxy

Address

Hartland, WI
53029

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