I recognize those red USB cables. get rid of that zwo stock cable lol. I had camera disconnect issues too using those! I use cable matter cables, zero problems in months.. sample size of one, of course, but still!
Hey Bray, thats a very beautiful setup. I love the idea of combining multiple scopes. I am also working on my own with 400mm F2.8 just like the Dragonfly Telephoto Array. I understand that that you preferred the 8" over the 11" due to cost, the difference in price is huge. But i have some trouble with your explanations in terms of speed, F1.17, FOV etc (some of mentioned in the video, some in the comments). Let me explain. 1. with the central obstruction the Rasa 8" is a F2.22 2. with the crop factor of the 2600MM the F number becomes F3.4, because you are only using 43% of the light 3. a takahashi with F3 and a 6200MM will actually gather more light. dont let you get fooled by the sheer opening. it also depends on how much light is actually used at the end of the imaging train 4. the comparison Rasa8+APSC vs. Rasa11+Fullframe is actually very interessting because the resulting FOV is nearly identical 5. the Rasa11 has a true F-ratio of F2.43 with the power of fullframe 6. the SNR on the Rasa8 may be still slightly better, because the FOV is spread on 6248 pixels wide, whereas the Rasa11 FOV is spread to 9576 pixels. 7. the worse SNR of the Rasa11 is invested in a much better detailed image due to higher focal lenght + more pixels. 8. with the 2600MM on Bin2 mode and 6200MM on Bin3 this aspect gets equalized and the Rasa11 image will have insanely better SNR. 9. those points may have lead the Dragonfly Telephoto Array Team to choose the 400mm lens with supporting fullframe. it is very effective in terms of speed, cost, weight and size. I would love to hear your thoughts on my calculations.
that discord sound in the background is driving me nuts Jokes aside... this is the future for us amateurs. Its not the same but I'm thinking of getting a second esprit 100 in the future and run it at f3.6 in addition to my already existing one that runs on f4.1 I have so much stuff planned and only a few hours per night!
"I was given nothing for this entire setup...I had to pay for everything..." well everything except a RASA 8 AND a JTW mount! 😂 ( Sorry Bray I am just teasing you because I'm jealous! LOL )
It's a beautiful setup! Interesting you mention the disconnects with the upb. I have been using the original ppb until I recently got the ppb advanced. I never had camera issues until I started using it. I only connect the camera to it for power, guide cam and filter wheel connect to the camera. Since using the ppb advanced I've had camera, guide cam and filter wheel disconnects several times. I did notice I have to reseat the power connector from time to time so maybe they have an issue with the power connectors.
Cannot wait to get my JTW Trident GTR up and running. Your setup is so cool. What camera were you using to record the video in the Observatory at night?
If you're looking for a test object that might solve an astronomy mystery, I think the origin of the Flying Dragon Nebula is still unknown. It's apparently a supernova remnant, but it's unconfirmed.
Hahaha the star front discord alerts going off in the background Gotta get them tickets open!! Awesome setup , now you can add one more rasa per year and go super deep There is a guy on TH-cam with a 3 rasa 11 setup that has some really cool 3d printed parts he made not sure his username but I’m sure you’ll find him if you look
Hi Bray, I am really interested in the article which you refer to for the Dragonfly Array. Do you have a link to the article please? I have a dual rig which utilises two modified SW 130PDS scopes. If I follow the maths you mention, the F ratio = Focal Ratio of one scope/Square root of the number of scopes (number of lenses) in the array - for me that makes my set up F3.5. I would really like to read the article which explains their method in working this out. In addition, how are you combining your data? I was going to stack each scope separately into two calibrated frames. Then stack together the two calibrated frames - is this the best method - or do you have an alternative? Thank you.
Bray-the way you go to this f/ratio makes sense and the math behind it as well-but how do filters (general and narrowband) play a role in this? do they further help out or they're only good as the detail that would be coming in at such f/ratios? just trying to understand if more add-ons on top such f/ratio do any good or not..
Wouldn't the T-stops, as used on cine lenses, be a more useful measure than f-stops in this case? Since you care more about light transmission more than depth of field and resolving power. Although I don't see a t-stop value published for the RASA 8.
Marvelous Bray!!! What is your consideration on not using multiple instances of SGP? Works like a charm for me while I grab A3 with two piggybacks riding on a RASA8. Dan
10:15 You can actually adjust the telescopes that they actually DON'T point exactly to the same spot on the night sky, but with an offset of about 15-30 pixels from each other. Hardware dither lol.
Really interesting setup and target plan - wish you all the best. I love the premise behind the Trident mount - so great to see one in action. I also appreciate you sharing what subs you are using and what control programs and how you distinguish which ZWO camera and focuser is which - always a pain when you have 2-3 identical ZWO cameras! Keen to know what sort of CPU set up you use to run WBPP with that much data - do you run bare metal or host a massive VM in the could? Did you go for a big multi-core gaming rig or an old one, two or four CPU Xeon server beast to try and get up to 100 cores to run the threads? Extremely interested to see what you discover! Best wishes!
this is awesome. dare i call it optical interferometry? also. have you thought about everyone there aiming at the same object and stacking that multi scopes multiple nights? that image would be way more light than any single scopes
That's really cool, now you just need to add a fourth on top for real colour! Why don't you use a single filter on each to avoid having to change them? You'd be collecting the same overall data just in a different order.
I want the full light collecting capability to be focused on one bandpass at once to achieve the speed desired, so it required getting all of the filter sets
sometimes they do! If they do, I just shoot shorter exposures and HDR. I prefer to get more faint detail and deal with the consequences of the long exposure as needed
Dude I was going nuts during the video, took me a while to figure out that the discord notification sounds came from your video... th-cam.com/video/sqELPQxD_IA/w-d-xo.html
Three osc one with a ha oii one with sii oii and one uv/ir cut would remove need to swap filters. For people wanting to try this remotely. Unlikely to be as good
Man you don't invest this sort of money to shoot behind a bayer pattern.. you don't want to be running on 25% of your pixels looking for low surface brightness OIII signal
17:37 "There's a comet. There's the milky way" As a shooting star comes in to frame.
Brother lives in fairy land
my jaw dropped when that shot came in to view. living my dream out there.
Try using ferrite beads on all high speed data cables to reduce the high-frequency noise which may be causing your connection problems.
Make sure to honor the minimum bend radius for your cables. Don’t bend them any further than they are rated for.
will look into this!
@@shubinternetinteresting, did not know or consider this. I have cables that have six loops in them, hmmm
Impressive setup, wow! Lots of discoveries ahead 👍🏻
Fantastic setup. So proud of your efforts!
That is absolutely insane! Congrats. Looking forward to your images.
Great job on this, love the show and tell, and the comet in the background is the icing on the cake!
Your night live cam with you talking, the Milky Way and the comet is insane!! Amazing
You are living the dream, my dude. Enjoy it! 🤩
I recognize those red USB cables. get rid of that zwo stock cable lol. I had camera disconnect issues too using those! I use cable matter cables, zero problems in months.. sample size of one, of course, but still!
Amazing rig! Thanks for the tour.
Crazy rig 😍 Also - surreal to see A3 Atlas and Milky Way behid the setup
That set up looks amazing. I’m looking forward to what you find.
That's a beautiful, albeit $$, setup! Love it!
Hey Bray, thats a very beautiful setup. I love the idea of combining multiple scopes. I am also working on my own with 400mm F2.8 just like the Dragonfly Telephoto Array. I understand that that you preferred the 8" over the 11" due to cost, the difference in price is huge. But i have some trouble with your explanations in terms of speed, F1.17, FOV etc (some of mentioned in the video, some in the comments). Let me explain.
1. with the central obstruction the Rasa 8" is a F2.22
2. with the crop factor of the 2600MM the F number becomes F3.4, because you are only using 43% of the light
3. a takahashi with F3 and a 6200MM will actually gather more light. dont let you get fooled by the sheer opening. it also depends on how much light is actually used at the end of the imaging train
4. the comparison Rasa8+APSC vs. Rasa11+Fullframe is actually very interessting because the resulting FOV is nearly identical
5. the Rasa11 has a true F-ratio of F2.43 with the power of fullframe
6. the SNR on the Rasa8 may be still slightly better, because the FOV is spread on 6248 pixels wide, whereas the Rasa11 FOV is spread to 9576 pixels.
7. the worse SNR of the Rasa11 is invested in a much better detailed image due to higher focal lenght + more pixels.
8. with the 2600MM on Bin2 mode and 6200MM on Bin3 this aspect gets equalized and the Rasa11 image will have insanely better SNR.
9. those points may have lead the Dragonfly Telephoto Array Team to choose the 400mm lens with supporting fullframe. it is very effective in terms of speed, cost, weight and size.
I would love to hear your thoughts on my calculations.
Lol @ "Fray Balls" on the pier.
Courtesy of Josh lol
Try using shorter USB cables and try to isolate them from power cables (AC). You can also try using higher quality USB cables like infinitecables
That looks like an absolute light gathering beast.
Love the water bottle counterweight!
there's a comet, there's the Milky Way, and there's a shooting star... lol
that discord sound in the background is driving me nuts
Jokes aside... this is the future for us amateurs. Its not the same but I'm thinking of getting a second esprit 100 in the future and run it at f3.6 in addition to my already existing one that runs on f4.1 I have so much stuff planned and only a few hours per night!
"I was given nothing for this entire setup...I had to pay for everything..." well everything except a RASA 8 AND a JTW mount! 😂 ( Sorry Bray I am just teasing you because I'm jealous! LOL )
Theres a quad rasa 11 out there as well, very cool setups
Very excited to see what this brings
It's a beautiful setup! Interesting you mention the disconnects with the upb. I have been using the original ppb until I recently got the ppb advanced. I never had camera issues until I started using it. I only connect the camera to it for power, guide cam and filter wheel connect to the camera. Since using the ppb advanced I've had camera, guide cam and filter wheel disconnects several times. I did notice I have to reseat the power connector from time to time so maybe they have an issue with the power connectors.
Cannot wait to get my JTW Trident GTR up and running. Your setup is so cool. What camera were you using to record the video in the Observatory at night?
If you're looking for a test object that might solve an astronomy mystery, I think the origin of the Flying Dragon Nebula is still unknown. It's apparently a supernova remnant, but it's unconfirmed.
interesting, seems to have some markers of being an snr but not much Oiii
Hahaha the star front discord alerts going off in the background Gotta get them tickets open!!
Awesome setup , now you can add one more rasa per year and go super deep
There is a guy on TH-cam with a 3 rasa 11 setup that has some really cool 3d printed parts he made not sure his username but I’m sure you’ll find him if you look
With this budget I'm surprised there aren't gold inlays and custom platinum trim all over the thing.
Wow Bray. Super impressive and such a cool idea! I’m running a 12in F/3.6 newt and I thought that was fast haha 🤣
I would add one more horizontal bar on top of the OTAs to prevent bending of the bottom bar.
the bottom bar is very rigid, no flexure
Hi Bray, I am really interested in the article which you refer to for the Dragonfly Array. Do you have a link to the article please? I have a dual rig which utilises two modified SW 130PDS scopes. If I follow the maths you mention, the F ratio = Focal Ratio of one scope/Square root of the number of scopes (number of lenses) in the array - for me that makes my set up F3.5. I would really like to read the article which explains their method in working this out. In addition, how are you combining your data? I was going to stack each scope separately into two calibrated frames. Then stack together the two calibrated frames - is this the best method - or do you have an alternative? Thank you.
Nice setup!
Is there a reason why you not have guide scope in the middle?
Bray-the way you go to this f/ratio makes sense and the math behind it as well-but how do filters (general and narrowband) play a role in this? do they further help out or they're only good as the detail that would be coming in at such f/ratios? just trying to understand if more add-ons on top such f/ratio do any good or not..
Badass new setup. You should get a Sony A7s for you bts videos
Wouldn't the T-stops, as used on cine lenses, be a more useful measure than f-stops in this case? Since you care more about light transmission more than depth of field and resolving power. Although I don't see a t-stop value published for the RASA 8.
I wonder if you could use that same kind of system with three SCTs instead of RASAs?
What happens if you add three more 🤔
Marvelous Bray!!! What is your consideration on not using multiple instances of SGP? Works like a charm for me while I grab A3 with two piggybacks riding on a RASA8. Dan
No dither sync, and I'd have to pay for more licenses haha
10:15 You can actually adjust the telescopes that they actually DON'T point exactly to the same spot on the night sky, but with an offset of about 15-30 pixels from each other. Hardware dither lol.
shouldn't you not be using CMOS then? wouldn't the quantum efficiency for CCDs be better?
Really interesting setup and target plan - wish you all the best. I love the premise behind the Trident mount - so great to see one in action. I also appreciate you sharing what subs you are using and what control programs and how you distinguish which ZWO camera and focuser is which - always a pain when you have 2-3 identical ZWO cameras!
Keen to know what sort of CPU set up you use to run WBPP with that much data - do you run bare metal or host a massive VM in the could? Did you go for a big multi-core gaming rig or an old one, two or four CPU Xeon server beast to try and get up to 100 cores to run the threads?
Extremely interested to see what you discover!
Best wishes!
I use an old ryen 3600x, and it handles everything fairly well!
this is awesome. dare i call it optical interferometry? also. have you thought about everyone there aiming at the same object and stacking that multi scopes multiple nights? that image would be way more light than any single scopes
thats exactly what I plan on doing!
That's really cool, now you just need to add a fourth on top for real colour! Why don't you use a single filter on each to avoid having to change them? You'd be collecting the same overall data just in a different order.
I want the full light collecting capability to be focused on one bandpass at once to achieve the speed desired, so it required getting all of the filter sets
So jealous right now! Wonderful!
One thing to ask Bray , at 300s broadband subs do your stars not blow out?
sometimes they do! If they do, I just shoot shorter exposures and HDR. I prefer to get more faint detail and deal with the consequences of the long exposure as needed
Theoretical question: If you arrange it to the triangle configuration, would it form 14 inch equivalent resolution telescope?
These can't be used for interferometry in this way I think
How does aperture play into this over speed? Would it not be beneficial to use RASA 11's over 8's?
I prefer both the extra speed and FOV of the 8”. Also it costs way less!
🔥Set Up!
lol how much aperture do u actually have with those giant ass cameras on the front
No dew shields?
Need dew for a dew shield.
This is the epitome of "Telescope porn" 😆😂🤣
I have seen people torturing their mount. No offense bro that's an amazing setup
wow.
If your sky is truly Bortle 1 then you can easily go to 20-minute subs at f#2, probably even more.
Now do C14 ... :🤣
Dude I was going nuts during the video, took me a while to figure out that the discord notification sounds came from your video... th-cam.com/video/sqELPQxD_IA/w-d-xo.html
That setup is so sick it needs a doctor.
Three osc one with a ha oii one with sii oii and one uv/ir cut would remove need to swap filters.
For people wanting to try this remotely. Unlikely to be as good
Man you don't invest this sort of money to shoot behind a bayer pattern.. you don't want to be running on 25% of your pixels looking for low surface brightness OIII signal
@@mark2220 even if it means being able to do it remotely? Probably not for tthis very faint stuff though
OSC kills the ability to separate out low surface brightness signals. They simply don't work for the kinds of objects I want to shoot
@@astrofalls im sure of that, ive seen your amazing images. It was aimed at people wanting something similar remotely
The Daily reminder: Agena Astro customer service is a pure cr@p. Avoid.