Cosgrove's Cosmos
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cosgrovescosmos.bsky.social
Cosgrove's Cosmos
@cosgrovescosmos.bsky.social
67 followers 120 following 55 posts
Passionate Astrophotographer, sharing my images & their stories. Sharing what works for me for those just learning. Website w/ images, gear, tips & techniques!
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cosgrovescosmos.bsky.social
34.5 hours in SHOrgb on Sh2-157 (the Lobster Claw) w/ the Bubble Nebula in frame!

Captured over 5 nights in Oct w/ FRA400/ASI1600/AM5 and processed in PixInsight.

Full story, workflow + annotations:
cosgrovescosmos.com/projects/sh2...

#Astrophotography #Sh2157 #SHO #ZWO #Askar #astronomy
November 7, 2025 at 7:49 PM
cosgrovescosmos.bsky.social
NGC 7380 – the Wizard Nebula revisited - this time w/25 hrs of SHOrgb!

Captured from Whispering Skies Observatory in Western NY.

See the full image & processing walkthrough 👉 cosgrovescosmos.com/projects/ngc...

#Astrophotography #WizardNebula #CosgrovesCosmos #SHOrgb
November 2, 2025 at 1:53 PM
cosgrovescosmos.bsky.social
I'm thrilled to share that my image of Markarian's Chain has been featured in
@bbcskyatnight
's November 2025 issue!

The original image can be seen here:
cosgrovescosmos.com/projects/mar...

This was 4.6 hrs of LRGB on my FRA400 platform.

#Astrophotography
October 21, 2025 at 1:10 PM
cosgrovescosmos.bsky.social
A new Imaging Project has been published on my website!

Barnard 150 - The Seahorse Nebula (18.3 hrs LRGB)

This was a bear to process because I used the wrong scope for this target!

Full details, including process walkthu here:
cosgrovescosmos.com/projects/b15...

#astrophotography #astronomy
October 3, 2025 at 1:38 PM
cosgrovescosmos.bsky.social
I'm pleased to share that two of my recent images were published in the Fall 2025 Issue of Amateur Astronomy Magazine: my shot of LDN 1235 - The Shark Nebula in LRGB, and my shot of M17 in SHOrgb!

#astrophotography #astronomy
September 30, 2025 at 1:13 PM
cosgrovescosmos.bsky.social
Thanks, BBC Sky At Night, for publishing my image of SH2-54m in the Serpent Nebula in their October 2025 issue!

The original project post with all details can be seen here:
cosgrovescosmos.com/projects/sh2...

#astrophotography #astronomy
September 21, 2025 at 12:20 AM
cosgrovescosmos.bsky.social
A new imaging Project has been posted to my Website!

SH2-155 - The Cave Nebula - 13.5 hrs SHO (my 150th project!)

Shot on my Sharpstar SCA260V2 & ASI2600MM-Pro & IOptron CEM70 mount.

Full story and detailed processing walkthru:
cosgrovescosmos.com/projects/sh2...

#astrophotography #astronomy
September 12, 2025 at 1:14 PM
cosgrovescosmos.bsky.social
A new imaging project has just been published on my website!

LDN 1251 - The Rotten Fish Nebula (19 hrs in LRGB)

Shot on my Askar FRA400 Platform w/ASI1600MM-Pro Camera & AM5 mount.

Full story & detailed processing walkthru:
cosgrovescosmos.com/projects/ldn...

#Astrophotography #astronomy
September 10, 2025 at 11:56 AM
cosgrovescosmos.bsky.social
IC 5070 - The Pelican Nebula (18.75 hrs in SHO)

Just published on my website!

I had 21+ hrs but thin clouds caused me to cull a full 2+ hours! Ouch!

Full story and processing walkthru here:
cosgrovescosmos.com/projects/ic5...

#Astrophotography #astronomy
September 6, 2025 at 12:58 PM
cosgrovescosmos.bsky.social
A new imaging project has been published on my website!

Got to love a supernova!

NGC 7331 and the Deer Lick Group w/ Supernova SN2025rbs (4.7 hours in LRGB)

Shot on my Sharpstar SCA260 V2

Full story & complete processing details:
cosgrovescosmos.com/projects/ngc...

#astrophotography
September 3, 2025 at 2:19 PM
cosgrovescosmos.bsky.social
A new Imaging Project has been published on my website!

IC 5068 - The Forsaken Nebula and the “Black Waterfall”- (11.9 hours in SHOrgb)

Must be seen full screen to appreciate the Black Waterfall!

Full story & processing walk-through:
cosgrovescosmos.com/projects/ic5...

#Astrophotography
August 14, 2025 at 12:12 PM
cosgrovescosmos.bsky.social
NGC 6543 - The Cat's Eye Nebula w/ NGC 6552 (14.6 hrs LRGB).

Cat's Eye - 3000 lys. NGC 6552 - 390 M lys!

Shot on SCA260 V2. Processing was a nightmare & stopped when I got tired of working on it!

Full story & Process walkthu here:
cosgrovescosmos.com/projects/ngc...

#Astrophotography
August 10, 2025 at 11:29 AM
cosgrovescosmos.bsky.social
M17 - the Omega Nebula. 17 hrs in SHOrgb.

Disaster! 2 full nights of subs removed due to a focus glitch! AHH!

Recovery: Skimmed a few hrs here & there & got it back up to 17 hrs!

Full story with processing walk-thru here:
cosgrovescosmos.com/projects/m17...

#Astrophotography
July 28, 2025 at 2:14 PM
cosgrovescosmos.bsky.social
Cool weather is ideal for some outside projects for the observatory! Painted the steel framework and mounted the shutters...

#Astrophotography #observatory #astronomy
July 23, 2025 at 3:31 PM
cosgrovescosmos.bsky.social
A new imaging project has been published on my website!

LDN 1235 - The Shark Nebula - my 1st Dark Nebula target (7.4 hrs LRGB)

Taken with my FRA400 Platform w/ASI1600MM-Pro.

Full story and detailed processing walkthrough available here:
cosgrovescosmos.com/projects/ldn...

#astrophotography
July 17, 2025 at 12:44 PM
cosgrovescosmos.bsky.social
I've been asked about how I made the sign for my Observatory.

I have a new post that covers this topic here:
cosgrovescosmos.com/observatory/...

#astrophotography #observatory #astronomy
July 15, 2025 at 11:50 AM
cosgrovescosmos.bsky.social
SH2-54, an HII complex in Serpens, resulting from 8.9 hours of SHO. Shot w/ my AP130/ASI2600MM-Pro platform from Whispering Skies Observatory.

Full story & detailed processing walkthru at:
cosgrovescosmos.com/projects/sh2...

#Astrophotography #astronomy
July 1, 2025 at 6:00 PM
cosgrovescosmos.bsky.social
Finally - after all of the clouds and smoke, we had a beautiful, clear, Moon-free night!

Here, all of the scopes are programmed and waiting for dark and the rise of their respective targets!

These are short nights - don't want to wait a moment of darkness!

#astrophotograpy #astronomy
June 24, 2025 at 4:58 PM
cosgrovescosmos.bsky.social
The sign is now mounted on the observatory, and the grass on the newly seeded lawn was mowed for the first time!

Next: shutters, painting the door and steel!

#Astrophotography #observatory #astronomy
June 22, 2025 at 8:05 PM
cosgrovescosmos.bsky.social
I just received the sign for the new observatory!
36"x36" on 6mm DiBond. Printed with UV-resistant inkjet with a matte UV layer on top of that!

#astrophotography #observatory #astronomy
June 22, 2025 at 8:04 PM
cosgrovescosmos.bsky.social
That's no Star Cluster!

That's the Coma Cluster of Galaxies - over 1000 galaxies about 320 M lys away!

Zoom & explore!

8.2 hrs of LRGB from William Optics 132 scope

Full post here - w/ target details & processing details here:
cosgrovescosmos.com/projects/com...

#Astrophotography #astronomy
June 6, 2025 at 12:25 PM
cosgrovescosmos.bsky.social
The NGC 5364 Group in Virgo. 6.3 hrs in LRGB taken with AP130 scope.

3rd image from my new Whispering Skies Observatory!

Interesting collection of galaxy morphologies.

Just wish the frame center wasn't empty!

All the details:
cosgrovescosmos.com/projects/ngc...

#astrophotography
June 1, 2025 at 4:41 PM
cosgrovescosmos.bsky.social
Markarian's Chain - 4.6 hrs LRGB taken on my Askar FRA400 platform.

This is the 2nd image from my new Whispering Skies Observatory!

Full details & processing walkthru at:
cosgrovescosmos.com/projects/mar...

#Astrophotography
May 25, 2025 at 12:24 PM
cosgrovescosmos.bsky.social
M106 - 10 hours in HaLRGB. First light on the Sharpstar SCA260V2 and Whispering Skies Observatory!

The full post, telling the full story - including detailed processing can be seen here:
cosgrovescosmos.com/projects/m10...

See full size for best effect!

#Astrophotography
May 17, 2025 at 4:38 PM
cosgrovescosmos.bsky.social
First Light was had for the Whispering Skies Observatory on Tuesday night.

As a maiden voyage, I expected some rough seas - there were some. But by midnight, all 4 scopes were gathering data.

Good to be back in the GAME!

#astrophotography
April 24, 2025 at 4:08 PM