My name is Rich and I'm a self-taught astrophotographer with a passion for capturing the beauty and majesty of the night sky.
On my channel, you'll find a variety of astrophotography-related content, including tutorials on how to get started in astrophotography, gear reviews, and behind-the-scenes looks at my astrophotography sessions. I also share my own astrophotography images and discuss the techniques and equipment I use to capture them.
Make a channel donation or join one of the membership programs.
👽 KZread: kzread.info/dron/D_yd3ej62tm94IOaYzrAyw.htmljoin
☕Buy me a Coffee: www.buymeacoffee.com/deepspaceastro
I make a small commission at no cost to you when you make a purchase through my affiliate links below. It's a great way to help support the channel!
High Point Scientific Affiliate Link: www.highpointscientific.com/?rfsn=7114225.7c470a
Amazon Affiliate Link: amzn.to/3YWWnwH
Пікірлер
With that color it still looks like a ZWO ASI camera.
Thanks, I enjoyed this post. I also bought a used Hyperstar from a friend's estate. I bought all the bits and pieces to suit my camera from Starizona and whilst there was a small hiccup the recovery from their side was fantastic. Great considering that I live halfway across the world from them. You don't seem to be using the Celestron dew ring controller. How are you powering and controlling it? Do you just apply 12v directly or do you have a means of controlling it manually or in software?
Thanks! The ring is controlled by the Pegasus Powerbox.
extrem cool👍
I have the Hyperstar version 4. I tried the shim spacing technique for collimation, but that never worked. I call Starizonia and they recommended starting flush . Collimated on a low magnitude star and now it is perfect.
Yep. I mentioned they recommend that in the video. Shimming just work out better for me.
How do you focus? What are you using?
I have ZWO's Electronic Auto Focuser configured in NINA. I manually used that to get rough focus, and then ran the Autofocus routine.
Wonderful first images ! In some of them, the shape of the stars is strange, do you know the reason for that ?
Probably collimation not being perfect.
@@DeepSpaceAstro oh I see… pretty hard with this kind of scope 😅
Great video! The final images look incredibly better using Siril, Graxpert and GIMP.
Thanks!
Glad to see you obtained a Hyperstar. Can't wait to see more videos from you about it. I have a v4 with a C8 and love it. I live in Tucson about a 15 min drive from Starizona. Their staff is the best.
Great vid Rich, definitely has got my want on! Cheers! Doug
Thanks Doug!
Congratulations! I just recently used my c8/hyperstar v3 for the first time and am thrilled with it. I did align my corrector plate first, and use the hyperstar flush. I'm really wanting to leave the scope in this configuration now, so thinking about adding a small sensor small pixel camera such as the 715c sensor for some extra magnification and resolution come galaxy season next year.
cool video, just one comment. If you use photometric color calibration, you need to give it an object from the catalog in the "find" field, otherwise the whole point of photometrics is void :)
You only need to do that if the RA/DEC data of the object doesn't exist in the FITS header.
What was the exposure and final integration time for your M106 data? Thanks.
101x300" exposures (8.4 hrs)
I have to set up and tear down my equipment every session. I would need to remove the Hyperstar so I could store my C8 in its storage bag. Would I have to check and adjust collimation every time I set up? Hard to get good deals like that on CN because they don’t stat up that long. Do you now use a guide scope on your Edge?
So far I haven't had to recollimate, and I tear down and setup each night as well. I've read where some say that you have to, but others say that's not true. So we'll see...
When you get the collimation like you like it, use a small screwdriver to tighten the screws down a little more than hand tight and it will hold very well. When I first got mine I noticed the screws would loosen themselves after a car ride to a dark sight. Now that I tighten them a little more they stay solid.
Thanks for that tip!
I bought my Edge HD rig from Starizona on consignment and it came with the HyperStar V3 and it has been a phenomenal piece of equipment. I live near Starizona and they are a fantastic group. Excellent video.
Thanks! It really is!
Absolute beast!😮
Whats the hyperstart? A telescope brand.
It's a lens that replaces the secondary mirror making the scope f/2 instead of f/10
@@DeepSpaceAstro ohh thanks
Great video. I have a C6 "laying around" and I have been wanting to put a hyperstar on it. That might be a fun little rig.
Absolutely! For the 6" new, they're a lot less expensive. I think it's $500. Probably can find a used used too.
Great pics and video. I guess you can't use a filter wheel when using the hyperstar.
Thanks! I've read posts on Cloudy Nights where people with the 11", not the 8", used ZWO's mini filter wheel successfully.
Well I'm officially jealous
It's just crazy! You have to get one!
@@DeepSpaceAstro well first I need an SCT
Awesome results! Now I want a hyperstar too :)
Thanks! Get one! You won't be disappointed!
Absolutely beautiful results! Thanks for the video!
Thank you!
WOW!! That's stunning!
It really is!
I have a new to me Hyperstar v4 HD for my EdgeHD11 and have not yet had a chance to try it out with my ASI6200MC Pro. Waiting for some decent weather.
Oh man that would drive me crazy having to wait. Hoping you have better weather soon so you can play with the new toy!
Hoping someone figures this issue out I had run it by Rich when the new version of Graxpert came out I figured it was just me, he confirmed it was not just me it would just be nice to see what you would expect…
I've been talking with one of the devs at Siril who knows the devs at GraXpert, so he reach out to them. It is in fact that the Autostretch is simply too much after running the image through GraXpert. The MTF parameters are not saved in the header as they are for the PixInsight format .xisf. That's why PixInsight users do not see this issue. It only occurs with .fit files. So for now, it's working as designed and it's not harming the data at all.
Thanks Rich super video got some old data I’m gonna process any of the steps applicable to nebulas I’ll be shooting a lot in Cygnus and Cepheus over the summer. I just didn’t remember if you had any videos the option in GHS looks awesome for some color in images that’s why I ask if it would apply to any nebula processing. Also the deconvolution is awesome somehow I must have missed that along the way. Keep em coming you’ve made this hobby for me a continuous learning path!!!
I always leave it at independent for the nebula, but you can absolutely try and see what you get. Thanks!
Same problem with graxpert. Dont remember it occuring in previous version
Thank you so much for this tutorial. I have struggling with the post-processing for along time and this actually helped me to have some actual results for the hours that I have spent shooting targets. Cheers!
Glad to hear it helped! Thanks!
This will help quite a bit. Thank you so much!
You're welcome!
Excellent result! I've been meaning to restack my M106 from like 4 years ago since I've learned a ton since then, You've inspired me to try it this week. Now...where did I put my raw files from 2020.
Thanks Naz! Look in your Covid folder. 😜
Hello Rich, your video is very good! It's more or less how I've been working, you clarified a lot about the hyperbolic stretching, thank you! My process differs from yours in that I take the image without stars to Photoshop and in addition to Camera Raw I give it a touch with Topaz Denoise IA, a comment on this would be nice. I stretch the stars in Photoshop and add them as a layer in Raster mode, it gives me better results than any other method. Siril is missing a reduction of stars like the one Bill's Script does in Pixinsight. Is there nothing comparable in Siril? Thanks again.
Nothing wrong with Topaz. I use to use it but have switched to GraXpert. And same thing with the stars. I did that previously in PS but prefer doing it in Siril now. I actually ported over one of Bill's star reduction scripts for Siril. Here's the video on that. kzread.info/dash/bejne/gJVqqdyEn93Wc6w.html
@@DeepSpaceAstro Genius! It works very well, also on a star-only image. From what I see, it uses the first of Bill's 3 scripts, are you working on implementing the third one, which is the one I usually use? Great job! Thank you!
You know I meant to, but never got back to it. I'll have to take a look. I remember the differences in pixel math between Siril and PixInsight were a little different. That's probably why I put it on the back burner.
Are you now preferring to use the Camera Raw clarity slider for sharpening rather than the Siril wavelets tool?
I still use it on occasion.
GraXpert really ruined your image. I always use Siril for gradient extraction and I even prefer it over DBE in PixInsight.
I don't think it ruined it. In what way do you thing that happened? DBE is pretty much GraXpert's code in Siril, not including the AI piece.
Very good video, I'm currently having problems with GraXpert, especially when the seestar_preprocessing script resamples 200%. seqapplyreg pp_light -drizzle -filter-round=2.5k The results from this are poor to unusable and I have no idea why. LG
Unless the devs have changed that, the Seestar script doesn't drizzle. Did you try without drizzle?
@@DeepSpaceAstro The script was expanded by me and Drizzelt each fit file before staking. The result is great, but you can't process it further in GraXpert
Great video my friend,I always use siril for astro and your tutorials are always very helpful. I've got a 130mm reflector I use for astro but have been unable to get a decent image of a globular, a tutorial on capture and processing in siril would be super useful if possible... many thanks
Thanks! Have you seen my beginners processing tutorial?
@@DeepSpaceAstro I have my friend. Can't remember a globular though?
It would be pretty much the same workforce, but skip removing the stars.
Thanks. I'll check it out again 😃
It seems like I read somewhere that the amount of stretch applied in "auto stretch" is related to the amount of noise in the image. When you denoise the linear image the auto stretch more aggressively stretches because of the lack of noise.
That's what I thought too, but opening it back up in GraXpert has the same issue. It looks good after the denoise, it's when it's opened that things change. I don't know...
Autostretch depends on statistics of image. When you remove the gradient, the image is flatter. So the autostretch looks stronger, and the noise looks greater. But this is just an illusion.
But I don't see that happening with background extraction. Only after I run denoise.
@@DeepSpaceAstro probably because denoise changes a bit the dynamic. So use the HD version of auto stretch
game changer!!!
Thanks!
I ve learn Siril because of you. Thanks again I owe you😊
Happy to hear that! Thanks!
Rich, what graphics card do you have? I've been using GraXpert for awhile now, and denoising always failed with an error message. I recently discovered that if I disable hardware acceleration, it will work, but takes quite a long time to complete. I'm wondering if GraXpert has an aversion to some graphics cards.
NVIDIA GeForce GTX 1070
That was my guess, thanks. I think NVIDIA is the standard everybody tests with.
A great ‘refresher’ video for me Rich. I’ve been using Siril and Graxpert for a while now after watching your earlier tutorials and I endorse what you say early on about how the unstretched image looks very odd! I don’t know the answer. I’ve never got to terms with ‘Deconvolution’ and must now give that a try. Thanks also for the tips you include about GHS and how best to preserve colour. I’ve got to give that a try too. Thanks as always 🤝
Thank you!
I never see any mention of SiriLIC in anyone’s videos. Is anyone other than me using it?
Rick made a video on that about 1 year ago kzread.info/dash/bejne/en583JOdddycYsY.htmlsi=4rh63HFbZidZCG42
We sure are, and I have a video on it as well. kzread.info/dash/bejne/en583JOdddycYsY.html
@@DeepSpaceAstro You talk about processing using the scripts, why do you prefer the scripts over SiriLIC? Trying to figure out if I’m missing features?
The scripts generally work well. I only manually stack and process if the data requires it, i.e. can't register some images, etc.
ive started using it recently, one thing i havent figured out without editing the project json is adding on additional sessions
Not in Scotland it's not 😢😢 never ending daylight.
☹️
That’s helped me no end especially with the stretch function, I was deffo struggling with that, thanks for another great vid 👍
Glad it helped! Thanks!
I'm new to siril and this has become my goto channel for any issues and techniques I need to know. Awesome work my friend .
Thank you!
Well, I know what I'll be watching over my lunch break. Siril is a powerful package, but it's so underused in my worflow since I only use it for stacking, background normalisation and removing green noise. I should really do a deep dive into the documentation one of these days...
If you haven't seen it, I have a start to finish video to get you started. kzread.info/dash/bejne/a39huJSPecbdlrQ.html
@@DeepSpaceAstro Yup, I noticed you mentioned it in this video, so I'm already watching it. So far, it looks more or less like the process I'm already following, which I got from Nico over at Nebula Photo's. Except from what I gather, you're not leaving Siril to post-process in Gimp or Photoshop. So curious to see what that workflow looks like.
I do use PS to post process. I show that towards the end of that video.
Hello, I'm using Linux Version of both software. No strange stretch problem when I re-open fits in Siril. It seems to works great! After using GrapXpert I have 6420 stars in my image instead of 2300 (using only Siril)
Hmmm. that's interesting.
I desaturate the stars before deconvolution though. That works pretty well. I also use the highlight protection too a lot to protect the brightest parts.
Good tip ! Thanks!