Deep Sky Detail (Mark)

This famous nebula has a secret. #science #astrophotography #space YouTube video by Deep Sky Detail

A fun video about the Running Man Nebula. #astrophotography

www.youtube.com/shorts/YHcur...

Got about 13-14 hours of the Soul Nebula over the winter. This is an SHO image, but I used pixelmath to make it more RGB-like. Orion 80ED doublet, ZWO 294MM, various SHO filters I'm testing. I wish I framed it better, but it's difficult without a rotator! @kat-astro-bot.bsky.social #astrophotography

Thanks!

Thanks! Wavelets for the win!

This is about 30 hours of SHO (roughly 10 hours each filter) for the Rosette Nebula. Some people say it looks like a skull, and I can see that too. Rotate the 1st image 90 deg. counterclockwise, and the center of the Rosette is one of the skull's eyes. #astrophotography @kat-astro-bot.bsky.social

Transforming Monochrome Images into RGB with Ha, OIII, and SII. Pixelmath Magic in Siril. YouTube video by Deep Sky Detail

It looks like an RGB image because I combined the stacked SHO images using pixelmath in Siril. I've got a video on how to do that from a couple years ago: youtu.be/4uUS3vcghiY

I've been slowly getting more data of Orion in SHO the past couple months with various filters. I combined ~30 hours worth of data (12 Ha, 9 in SII and OIII each), processing them in Siril and Gimp. I messed with wavelets too much probably #astrophotography #nebula @kat-astro-bot.bsky.social

Thank you!

Measuring the Earth's Shadow. Lunar Eclipse 2025 #astrophotography #astronomy #eclipse #space YouTube video by Deep Sky Detail

This was a fun video I made about last year's lunar eclipse:

youtube.com/shorts/iZWYr...

#astrophotography

And it points out that many imaging acquisition software have histograms that may not be all that useful. For example, the one in Ekos/Kstars shows "intensity" and not "ADU," which makes it really hard to know if you are clipped on the left. Anyway, watch the video. I think it's good :)

If you're looking to minimize satellite trails, planes, guiding errors etc., then you do want shorter sub frames. But, how short can you go? Well, use the histogram to find out! The video goes into detail about the method and tools you can use to analyze your sub frame histograms.

And while it is true that you don't have to pay attention to it, it can still provide valuable information. You can use it to figure out whether your sub-frames are too short. With CMOS cameras and low read noise, sub frames can be very short. But too short is bad.

How to Tell If Your Sub Exposures Are Long Enough. #astrophotography YouTube video by Deep Sky Detail

Histograms, despite what you may have heard, can still be used to figure out what a good sub-exposure time is in #astrophotography. There is an argument I've heard that you don't need to pay attention to the left side of the histogram anymore...

youtu.be/jVGcG989g9E

I've been messing around with adding low frequency data from my f/2.9 sharpstar to data taken with my f/9 RC for Messier 78 in Gimp using wavelets. I'm not sure what to think, but I kind of like it. What do you think?
#astrophotography @kat-astro-bot.bsky.social

Two Times the Detail in Half the Time? What is detail anyway? YouTube video by Deep Sky Detail

I did a quick video comparing two pictures I took of M78. One had 12 hours of data, the other had 23 hours. The 12 hour image had much better SNR. But it lacks something! #astrophotography

youtu.be/3wR8A2T7XEM

Thank you! :)

You are being misled about renewable energy technology. YouTube video by Technology Connections

Let's do this.

www.youtube.com/watch?v=KtQ9...

I also did some additional light pollution analyses for my BuyMeAcoffee Members: buymeacoffee.com/deepskydetail/filters-light-pollution-12nm-vs-5nm

Testing 5nm vs 12nm Narrowband Filters. An Experiment in Bortle 6 Skies YouTube video by Deep Sky Detail

Have you ever wondered just how much bandwidth matters? Like, how much more integration time would you need to get the same SNR with a 12nm narrowband filter vs. a 5nm filter? Well, I tested that in my Bortle 6 skies! #astrophotography

youtu.be/U9lwAT1ECk0

Simple Jupiter Processing: Tutorial with Free Software (Autostakkert + Gimp) YouTube video by Deep Sky Detail

I made a video about how you can process #Jupiter in Autostakkert and Gimp. #astrophotography

youtu.be/C1aOxJOEBjg

Jupiter in Opposition 📸🔭

Seeing Jupiter's Rotation in my #telescope. #astrophotography #science #space #astronomy #Jupiter YouTube video by Deep Sky Detail

I made a little YT Short detailing how I created Jupiter's rotation:

youtube.com/shorts/ZrbU2...

#astrophotography

Thank you!

Note: 10:00PM is frame 40. 1:30AM is frame 0.

Here is a timelapse of 40 images of #Jupiter taken with my C8 and 224MC camera from last night. The frames are on the bottom. I started around 10PM and ended around 1:30AM, right after the Big Red Spot's transition. The frame is given in the text. #astrophotography

I have the same bug as Autostakkert. Highlighted in the pic below.

Here is another image of #Jupiter from last night. #Astrophotography. Slowly working on a timelapse. Autostakkert is chugging away in the background!

That looks amazing!!

Looks great!

Thanks, Doug! :)