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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 1h

I tried reprocessing this image of the Pleiades from a few months ago, using only simple techniques. I feel like I overstretched the original. #astrophotography

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 7h

Are you using the right gain for the Dwarf Mini? I could not find the Dwarf Mini's Gain specs anywhere. So I measured them. #astrophotography youtu.be/HP1mKeVGXVo

youtube.com

Dwarf Mini Gain Settings: It's Not Always 60

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 30/09/2026

I reprocessed this image from my dwarf mini a couple weeks ago, using better darks, and it turned out MUCH better. I also threw out half the data to make sure only the best frames were getting in. The data thrown out were mostly due to clouds. #astrophotography.

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 22/09/2026

Yesterday I did a poll on YT about what platform has the most fake #astrophotography images. The results were... not surprising. In my latest video, I go over some images I found on that platform. youtu.be/7zVWiHIpSX8

youtu.be

The Worst AI Slop on Facebook about Astrophotography.

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 07/09/2026

I've been reprocessing about 45 hours of Dwarf Mini data on the North American Nebula. This is my latest result. Could be better. But it's better than my last attempt, imo. Processed with Siril/Gimp/AstroSharp/Graxpert. #astrophotography @kat-astro-bot.bsky.social

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 05/09/2026

I am bad at #astrophotography. This video is from a couple years ago: Spoiler from the end: "Somehow, in our neck of the universe, a bunch of carbon, oxygen and hydrogen atoms got together and were like "I bet we can make a neuron." And those neurons started connecting... youtu.be/0RnMcTxmIpQ?...

youtu.be

Confessions of a bad astrophotographer....

YouTube video by Deep Sky Detail

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Reposted by Deep Sky Detail (Mark)

Walt Watson Astrophotography @waltwatsonastro.bsky.social · 03/09/2026

The Cosmic Checkmark Nebula is comprised a latge elongated molecular cloud (LBN 534) and the reflection nebula (VdB 158) lies in a dusty starry region in Andromeda. It is ~ 35 light years in length. (per Wiki) Exposure 6 hrs over several sessions, updated 09/02/26 #astronomy #astrophotography

The Cosmic Checkmark Nebula is comprised a large elongated molecular cloud (LBN 534) and the reflection nebula (VdB 158) lies in a dusty starry region in Andromeda. It is ~ 35 light years in length.

Exposure 6 hrs over several sessions, updated 09/02/26

Equipment:
Telescope: SVBony SV555 Petzval astrograph
Camera: ZWO ASI2600 mc pro
Mount: ZWO AM3
Controller: Mini PC running NINA, Phd2, Stellarium
Filter: UV/IR cut
Processed in SIRIL,Veralux, Graxpert, and Luminar Neo

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Reposted by Deep Sky Detail (Mark)

Steve Brown - astronomy and astrophotography @sjbastro.bsky.social · 03/09/2026

Video of a #Perseid meteor passing nicely between Pegasus and Cygnus on the night of 9-10 August 2026. #Astronomy #PerseidsMeteorShower #Perseids #Astrophotography

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 02/09/2026

Finally I got around to making a timelapse of the partial lunar eclipse. I then ended up making a short: youtube.com/shorts/Ccs_e... #astrophotography

youtube.com

Only a Spherical Earth Can Do This. LOL #space #science #astronomy

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 29/08/2026

Last nights partial lunar eclipse taken with a Canon R8, RC 6" telescope, single exposure (around 4 seconds at ISO 400 if I remember correctly). #astrophotography

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 27/08/2026

Over the years, I've used a few different types of telescopes. I've struggled getting good star shapes. Each design presents its own challenges. Am I the best at fixing star shapes? Heck no! But I did try to learn along the way. This is a video about that: youtu.be/OFyMi9CKazg #astrophotography

youtu.be

Why Your Stars Aren't Round (And How to Actually Fix It)

YouTube video by Deep Sky Detail

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Reposted by Deep Sky Detail (Mark)

Debra's Astrophotography @debraceravolo.bsky.social · 20/08/2026

When in the southern hemisphere at certain times of the year, we can see the whole shape of the Milky Way galaxy across the entire sky. The bright central core where the stars are most concentrated is right overhead. From Namibia, Africa using an 8mm fish eye lens. #astrophotography #astronomy

The bright core of the Milky Way galaxy is right overhead from horizon to horizon. Taken in Namibia Africa using a Canon camera and 8mm fish eye lens. A single 20 second exposure.

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 21/08/2026

Processing underwater footage feels like processing astro-photos: You never know if you're getting the colors right, lol www.youtube.com/shorts/TKWNQ...

youtube.com

How is underwater videography like astrophotography?

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 16/08/2026

Disclaimer: I like smartscopes. But, will modular setups be replaced by them in #astrophotography? Maybe. If I had to guess, not soon. Below is a comparison. On the left is 1 five minute sub in Ha with a fast Newtonian and 5nm filter. On the right is 1 hour from a smart telescope and duo filter.

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Reposted by Deep Sky Detail (Mark)

Naztronomy @naztronomy.com · 14/08/2026

Took a timelapse of the solar eclipse with a Seestar? Does it look jittery? Here's a video showing how you may be able to fix it: www.youtube.com/watch?v=89XT... #astronomy #astrophotography #Seestar

youtube.com

How to Fix your Seestar's Eclipse Timelapse with PIPP or Siril

YouTube video by Naztronomy

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 14/08/2026

I took this image of the Sadr region with a Canon 85mm portrait lens attached to my 294MM (other images cropped from original). 16 hours of Ha combined with about 2 hours of RGB. It is undersampled at 2x drizzle, but it still made a ~180 Megapixel image! #astrophotography @kat-astro-bot.bsky.social

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 13/08/2026

I recently went to the Keys on vacation. While there, I did some #astrophotography with the Dwarf Mini. I made a video of highlights from the trip: www.youtube.com/watch?v=lXI-...

youtube.com

Smart Telescopes Really Can Go Anywhere. Taking the Dwarf Mini to Florida Keys.

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 09/08/2026

DwarfLabs sent me the Dwarf Mini to review. I put 44 hours into the NA Nebula. When I started my #astrophotography channel, videos were about AstroSharp. Dwarf users told me it worked well on their data. Now using a smart scope, I can see where they wwere coming from! @kat-astro-bot.bsky.social

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 08/08/2026

Made this video a couple years ago about color in #astrophotography. I feel like the information is really cool (even if my video editing was awkward). youtu.be/VIhngr6nxk4

youtu.be

Why is color so difficult for astrophotographers? And everyone else too.

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 24/07/2026

I started my #astrophotography channel by publishing videos about AstroSharp, a free neural network sharpening tool I developed. It can now be used in SiriL. The Windows tool got some updates too. It may not be the best, but I think it does a decent job for a lightweight NN. youtu.be/WIL1osnmRkg

youtu.be

Get Rid of Blur for Free in Siril (and Windows). AstroSharp can sharpen stars and DSO independently.

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 12/07/2026

I took this of the Tulip Nebula last summer with my C8 in HaRGB. I was afraid to process it because the collimation was off, and the stars were bloated. After a year, I got some courage, and processed it in Siril, Gimp, AstroSharp and G'Mic. #astrophotography @kat-astro-bot.bsky.social

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 04/07/2026

The plane is in freefall, but at least we're still higher than the other planes is certainly a take.

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Reposted by Deep Sky Detail (Mark)

The Force of Tech @theforceoftech.bsky.social · 03/07/2026

Months in the stars, you spent. Surprised by the light, even experts can be. Useful, this test is for many a sky watcher. Clear data, fewer halos, hmm, the path to better photons it is.

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 03/07/2026

I spent months testing these premium #astrophotography filters. I looked at signal, noise, star halos, contamination from other emission lines and spectrograph tests. The results were surprising at times. youtu.be/ovPAD6M2XNI

youtu.be

I Spent Months Testing Premium Filters... How do they compare? #astrophotography

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 21/06/2026

I made a free tool to test your #astrophotography filters. All you need is a spectrograph that you can DIY pretty easily! Video below: youtu.be/3dJFAAXuZ6U

youtu.be

Test your narrowband filters with my free software! #astrophotography

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 21/06/2026

Buy a print of this image: www.ebay.com/itm/39808935... I really like this edit. To keep the expenses of my YT channel in check, I've decided to experiment with selling prints. It's an 8.5x11 inch print on premium matte paper. I did the printing myself to ensure quality. There are only 20 for sale.

ebay.com

8.5x11 Matte Print of the California Nebula in Hubble Palette. Astrophotography | eBay

🌌 Astrophotography Print – Deep Sky Object (Signed Fine Art Print). Lens cap in third image is given for scale, and not included in the sale. Astrophotography collectors. Object: California Nebula (NGC 1499).

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 20/06/2026

I had some SHO data from last year that I went back and reprocessed. This is about 15 hours of data, taken with a ZWO 294MM and 80ED doublet. Processed in Siril, Gimp, Graxpert. Forgive me my purple stars. #astrophotography @kat-astro-bot.bsky.social

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 11/06/2026

This is a screenshot of a 5 minute sub in Ha taken with an 85mm lens. It's attached to my ZWO 294MM pro with a special adapter that allows me to control autofocus and aperture in kstars. Can't wait to process this :) #astrophotography

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 08/06/2026

Just thinking about how much time it would take me to get this image from a Bortle 6-7 zone where I live, and I estimate that it would take somewhere between 20-40 hours. And even then, the fainter dust might be unrecoverable. Light pollution is a real pain. #astrophotography.

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 07/06/2026

The Iris Nebula taken from a Bortle 2-3 zone, about an hour's worth of exposure time. Graxpert is putting in a lot of work here. I wish I had more imaging time on the target. ZWO 294MM, Orion 80mm ED Doublet and 0.8x reducer. Siril, Gimp and Graxpert. #astrophotography @kat-astro-bot.bsky.social

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Reposted by Deep Sky Detail (Mark)

The Force of Tech @theforceoftech.bsky.social · 07/06/2026

Patience, the cosmos teaches. Twisted by its neighbor, NGC 4747 has been, yet beautiful it remains. Fine work this is, and from one hour only, much starlight you gathered.

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 06/06/2026

NGC 4725 is the larger galaxy in the photo below. NGC 4747 is the galaxy in the upper left quadrant, and has been deformed by its larger neighbor. Bortle 3, 1 hour of LRGB data, ZWO 294, 80mm ED Doublet. Siril, Graxpert, Gimp. #astrophotography @kat-astro-bot.bsky.social

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 06/06/2026

Markarian's Chain taken from earlier this year (first is full image, and the rest cropped). It's about 12 hours of total integration time in LRGB (ZWO 294MM, Orion ED Doublet). Processed in Siril, Gimp, Graxpert. #astrophotography @kat-astro-bot.bsky.social

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 30/05/2026

I recently went to a dark site and got Milky Way images with a smartphone, Canon T4I and Canon R8 and just a tripod. I thought I'd make a fun video comparing them. #astrophotography youtu.be/ZwTTx8LrCSI

youtu.be

Can phones beat "real cameras?" Milky Way Imaging. Ep 3. The Astro Guide #astronomy #canon #samsung

YouTube video by Deep Sky Detail

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Reposted by Deep Sky Detail (Mark)

Nico Carver @nebulaphotos.bsky.social · 26/05/2026

More photos I took on my recent trip to Chile 🇨🇱 1: Wide shot of Crux, Coalsack, Carina, etc. 2: Closeup on Running Chicken Nebula 3. Closeup on Statue of Liberty Nebula #astrophotography

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Reposted by Deep Sky Detail (Mark)

The Force of Tech @theforceoftech.bsky.social · 19/05/2026

Strong with the photons, this image is. Untracked, hmm, but guided by patience, it was. Far from perfect, many stars are. Beautiful, it remains.

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 19/05/2026

I tried capturing Rho Ophiuchi untracked with an 85mm lens and unmodded T4i under Bortle 3ish skies to see what I could get. With around 600 5-second exposures, it's far from perfect, but not bad either, imo. #astrophotography @kat-astro-bot.bsky.social Processed in Sequator, Siril, Gimp

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 18/05/2026

I've been trying to find the darkest skies in Florida. This is probably within the top 3. Maybe it's the darkest spot that isn't Dry Tortugas. #astrophotography #milkyway 1st Image: 7 minutes exposure time 2nd Image: 40 minutes Rokinon 14mm Lens, Canon R8 Sequator, Siril, Gimp

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 30/04/2026

As Milky Way Season is approaching, just remember that getting into #astrophotography has never been easier. All you really need to get started is a phone and tripod. This video I made last year even gets into stacking and processing. youtu.be/1g7CTZIbs6U

youtu.be

Amazing Smartphone Images without Fake AI. Ep 1. Astrophotography Guide

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 27/04/2026

So, I made some improvements to my #astrophotography Sub Frame Calculator related to narrowband and one shot color cameras. The details are in this video: youtu.be/g5hdCV4yFcE

youtu.be

The Narrowband Sub Length Problem Nobody Talks About. Use My Sub Calculator to Fix It!

YouTube video by Deep Sky Detail

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 07/04/2026

M81 and M82 taken from a Bortle 3 location. ZWO 294MM Pro, f/7.5 refractor with 0.8x reducer, about 2.5 hours of data. #astrophotography

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 01/04/2026

Hi everyone. I just realized there is a bug in the sub-length calculator code. If you're not using unity gain, then the Min.Sub2 estimates will be off (and some others). The Sub Optimization stuff is still correct. But, I'm going to update the app later today and send out a fix. Sorry about that!

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Deep Sky Detail (Mark) @deepskydetail.bsky.social · 31/03/2026

Basically, you load a dark/bias frame, and a light frame, input your camera's bit-depth, e-/ADU based on gain, and light frame's sub exposure time in seconds, and it does the rest.

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