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Great presentation! Incredible piece of equipment that telescope, great it was rescued from oblivion!

Hello Kai, great & inspiring presentation ! Just one technical question: You are using a (Thorlabs ?) grating with 300 lines / mm. Is this due to the fact that spectra from gratings with higher resolution will not fit onto the relatively small S50 chip ?

When you observe in the summer you dress like it is autumn. When you observe in the autumn you dress like it is winter. When you observe in the winter you put on an extension tube to your CCD and observe remotely from a warm room.

I started using the Planetary Live Stacking 2 months ago for Solar imaging. It is amazing. I no longer use Pipp or Autostakkert. Sharpcap basically does the majority of the post processing during the actual image capture. Once I have the finished Sharpcap tiff image I move it into PI. Using solar tools I then do the final processing. The real timesaver is saving the processing settings in Sharpcap and Solar tools in PI. I just open the final Tiff file and open the solar tools script and hit the OK button. I use the same saved settings for every capture. Tremendous time saver that producers a consistent final image every time.

many thanks, this is a great tutorial. the data set link is to the tarantula nebula not the galaxy

Before watching this video I used to simply connect my NVG image intensifier with the eyepiece of my skywatcher Alt AZ Goto Dobsonian through my self constructed adapter to record video of some DSOs. Then I used to extract frames from the video and process them through DeepSkyStacker. Image intensifier gave me a real-time bright image of DSO almost equivalent to the one obtained after 15 second exposure from an astrocam. Tracking of my dobsonian is not good at all and that was my own idea to get rid of that problem using an image intensifier. Thank you.

Awesome

Congratulations on the 10th Anniversary and great presentations today. This is becoming one of my favorite channels. I need to get multiple scopes going for our scarce imaging nights, like Molly, and I’ve been dithering forever but a good overview of the whys.

I agree with @CameronGillis. Congratulations and I really enjoy your videos too, although I have not “watched every one”

Congratulations TAIC on your 10th anniversary 🎉 Really appreciate and enjoy your videos and I'm proud to say I've watched every one... Hoping to contribute a presentation to TAIC in the future (maybe as soon as next year 😂). Keep looking up and enjoying the journey ✨️ Cheers!

Amazing work getting so much out of this scope!

Quite nice! Out of curiosity, I just loaded a .png file of M-13 which I took with my short tube 80. It cleaned it up quite nicely. Made it quite sharp and took out the noise.

I am hoping to get a clear night because I thought I was doing something wrong. I added 10mm to the 55mm recommended backfocus and the stars where still pointing to the center of the image at the edges. I guess the hotech 1x flattener f6-8 55mm back f was likely for the f8 refractor. Mine is f6.

I have found clear liquid silicone grease, I use on my fountain pen's ( Twsbi Brand liquid Grease ). when put on the threads for the joints dose aid in letting you get them apart again "Note only use it in very tiny amounts as you only need it on the threads. I apply it on one part first then join the two threads, this way I can't over do it right off the bat.

Thanks Tim for a great presentation! This will change the way I look at setting up my gain while shooting different targets!

Thanks for the very helpful video! Question: filtered subs are you starting with for the M51 image? LRGB or something else? Thanks!

Thanks for the interesting vid. What is the RGB-L formal, please? It's very hard to read on the screen. Thanks.

I'm thinking thru the bit about cooling and dark current... if my sky brightness is at 5.16 e/pix/s and my ASI533MC never has a dark current value greater than the sky brightness/10, I should just never cool my camera?

Fabulous presentation. Many of my thoughts parallel the speakers on exposure time.. maybe because we’re both EE’s, and me being a retired semiconductor engineer. I have never understood the argument that some make about many short exposures being just as effective as fewer longer exposures, especially on dim targets for the same reasons the speaker shared. I’ll have to think more about his read noise comments. Anyway, great presentation.

This was really great, thanks Ron! I had never considered correcting stars for the purpose of SPCC, definitely adding that to my workflow. Now all I need to do is get Graxpert running.

This video was 7 hours long when I clicked on it. Now it says 58 minutes*...

Great video and work. I just received your book. Preparing for the ON THE MOON AGAIN weekend, June 14, 15, 16. if there a protocol to get osme fo these photos, and are they labeled. Thank you.

Flats need to be taken every session to account for dust particles settling on the rig

I agree with the comments below, one of if not the best noise/exposure/calibration presentations I've seen! I have one follow on question....if you process stars and target/background separately, is there any advantage, or disadvantage, to maximizing light frame exposure length according to the brightest part of the target and letting the stars blow out, then remove the stars during processing and replace them with stars from an extra couple hours of RGB lights exposed to optimize the stars?

Fantastic presentation!

Great presentation, thanks Tim!

Excellent presentation, thank you Tim and TAIC team! Lots of great and helpful information on noise in astro-imaging. In the distant future, I hope to contribute some of what I've learned over several years of astro-imaging, once I'm ready 😎 Thanks again, and keep looking up and enjoying the journey ✨️ Cheers!

Thank you Tim. Very informative and done at an interesting pace.

Great presentation! One of the best explanations of noise I've seen.

Wow!

Hi Robert! This is such an enlightening video podcast - couldn't believe NASA threw so many images in the trash, luckily they were finally retrieved and you were so fortunate to receive thousands of these *Amazing* images! I enjoyed the detailed historical account of NASA's missions to photograph the moon during the Apollo and Lunar Reconnaissance Orbiter missions! Thank YOU!

I am hoping for alternate views on some of the anomalies seen, like Blair Cuspids casting 70m tall shadows w/square depression nearby, Flashes seen around Aristarchus Plato, Levi, Posiedonis. Alphonsus crater has historical glows and fogs across crests and around region. Medi Sinus shows Tower 5mi tall snapped by Lunar Orbiter {pic#”384M”} and other assorted questions that escape me just now. My problem is UNseeing the water-bubbles explode and flee out of camera when ISS is doing ‘live’ ISS feeds, or exterior shots of trusses where mice seem to crawl around beams. The gopher darting between ‘martian’ rocks is the best. As someone who used Photoshop before it even had that name I am very aware of color lookup table alterations and histogram f*ckery and simply do not trust NASA as anything but milspec propaganda arm.

I love stretching my black hole.

Excellent presentation!

Title is a bit misleading. Should be more like: backyard capture of the arp catalogue with 25K€ Equipment (Billionaire Edition). Anyhow, impressive work. Money shoots the pictures, just like always in astronomy...

You have slot of stuff. Can u show pics of image train how you assemble it? Like your videos

It's too bad they went with Cuda and not something more open to everyone.

About MacBookPro Performance: M1max: Loading image 'integration': w=9048 h=7248 n=1 Gray Float32 RC-Astro BlurXTerminator, version 2.0.0, BlurXTerminator.4.mlpackage Initializing... Processing: done 28.286 s RC-Astro NoiseXTerminator, version 1.2.0 Processing: done 8.691 s RC-Astro StarXTerminator version 2.2.1, AI version 11 lite Processing: done Generating stars image Copying astrometric solution to stars image 22.177 s

If you use a mirror telescope, you shouldn't need to do any refocusing. Apochromatic glass optics that work across visible and infrared are very expensive. Mirrors are the only way for an amateur to go if you can't refocus.

Excellent initiative! Thanks a lot

I really appreciate the demo in this video, but I have a question, for example, if I want to make a project of the IC objects and another of the Sh objects. Should I do each one with a different profile? Copying the original profile and modifying the name to have two identical profiles, with different names and in each of them a project. Thank you very much for your time and your response. Greetings

Canada here. It was a perfect blue sky much to my surprise. I even got 2 comets in my images (12P/Pons and SOHO-5008)

Thanks for the video, Adam! It helped me understand GHS much better!

I'm having issues getting GHS installed on my Windows 11 machine. Any tips?

I think you guys need to screen capture higher than 720p, most of the video is so heavily compressed its very hard to see the detail in the images.

Great video!! I can't wait to try to incorporate these techniques in Siril GHS.

Thanks for the excellent info on Astro-filters? I'd like to know more how astrophotometric filters work, and which filters can you recommend? (for stardard photometry and also for temperature measurements). Thanks a lot!

A wonderful tutorial. Thank you Andrea

I wish John gave more talks, these are my favorites

Awesome presentation! Thanks!