testing if Insulating a Telescopes works?

[@AmatureAstronomer]

Joe seems to have the nicest scopes.

[@JoeJaguar]

Well, I do have some nice scopes but I’ve been in the hobby this is my 31st year so I had lots of time to accumulate it plus a lot of the times I do buy used on the secondhand market and sometimes you can find them up to 50% off

[@AmatureAstronomer]

@@JoeJaguar I only got into this hobby in August 2023 and been trying to learn to use a telescope and a camera, neither of which I have ever owned before, as well as processing software, video recording and editing and You Tube channel maintenance. I hope to start posting videos myself in the next month or so. Sadly, I have a face for radio and a voice for print, so I do not expect to have as many subscribers as you.

[@JoeJaguar]

@@AmatureAstronomer well personally I don’t think I have a lot of subscribers. My first six months of making videos were just utterly horrible as I just had a camcorder and then, even after that videos started become slightly better but it took a long time. I think my videos are decent but they’re not professional quality. I’ve never taken a course in videography photography or anything like that, so it was slow process But I have seen channels in the US that have skyrocketed way past me, even though they started much longer after me Then somebody told me that USA KZbin is actually different than Canada KZbin and analytics works so much faster I’m not 100% sure how it works either but I have noticed my KZbin counterparts go 10 times faster than me I also have heard people contact me and my SEO is not ideal and could be better but of course I would have to pay for that which I don’t want to until I actually start making money And then, of course, some people pay for videos to be promotional and I don’t do that either so I guess it varies in a lot of different things Just recently, I’ve seen somebody on an Astro channel with only 10 videos, but have like 1300 subscribers. Meanwhile I have 237 videos with only slightly under 1800 hundred subscribers so I think I’m still kind of slow for some reason.

[@atiladudus3168]

You are the MAN for doing this and comparing scopes. Fantastic to know. Did not expect to be that bad with insulation, and it was good covered.

[@JoeJaguar]

I appreciate the comment looking back now. I just wished I would’ve done one thing and put my camera to the eyepiece with the insulation and with it off to show you guys. But to clarify, again, both images weren’t that great, but it was actually better without the insulation yes Thanks for watching

[@marcodaquino9744]

Hi Joe, nice video! Best regards Marco (Lunaman)

[@JoeJaguar]

Hi mrco thanks for watching my channel and sharing

[@janomacko5764]

Fluid dynamics with heat dissipation is an extremly complicated matter. Predicting behaviour of air inside the telescope tube is very simalar to weather forecasts, and we all know that they are not always reliable. That means that only numerous practical experiments can give some answers, but also there may no good answers or predictability. Perhaps for certain temperature ranges there is some benefit from the insulation and for other temperatures it makes it only worse, only prolonging the temperation process.

[@JoeJaguar]

Thanks for all that I agree I got this information from cloudy nights and people talking about making scopes useable by insulating them so this is like the second video I’ve done if you’re not I have watched the previous video where I use the 6 inch outside. please go back a few weeks and you’ll see what I’m talking about. I am making one more video coming up cloudy nights forum says to use that aluminum stuff and since this is not an SCT I don’t know if that has any effect. I’m looking at it like how the MythBusters did it. I’m trying to do every angle until I figure this out. To me so far doesn’t look like it and a lot of the comments look like very low probability that it works but I want to give it the benefit of a doubt if people are saying it works. I want to try to prove it yes or no or maybe it’s a maybe Anyway, appreciate your comments. I’m not sure if I’ve seen your comments before but if not, hopefully I see you on other videos. Cheers.

[@janomacko5764]

@@JoeJaguar I will check out your other videos as well.

[@JoeJaguar]

@@janomacko5764 great thanks

[@3dfxvoodoocards6]

Interesting video

[@JoeJaguar]

Thank you

[@AstronomyGarage]

I suspect that there's no getting around letting the entire thing acclimate. Even if it's a closed system, that big lens is going to see a huge temperature difference and cause convection on the outside.

[@JoeJaguar]

This is talked about many dozens of times on cloudy nights under the SCT forms people are saying it’s a done deal now for years, To me, my argument is exactly yours that I don’t think it’s been proven yet, but I’m cloudy nights. They say this is a dead deal that’s been proven for a dozen years now. On cloudy nights, so I guess I can’t start a thread, asking those who believe it to prove it

[@StargazerFS128]

I need to test this thing out for a while, something tells me you haven’t used it enough to judge, you could take a scope out 12 times a year and not hit a good night, takes more than that.

[@JoeJaguar]

That could be true on this particular scope but on cloudy nights, we’re talking about insulation not sure if you’ve checked the SCT part and they always talk about insulating a telescope. You never have to worry about cool downtime. So on this particular test it was about that that if I insulated it, the image should be perfect right away and if I took it off, then would mean that the image should get worse because then it’s back to needing cool downtime I’m a bit weary about this theory and according to this video, the image got actually better after I took out the insulation, which is actually the reverse of the theory

[@supermario8416]

Nice idea. I go outside with my telescope down to 5 degrees Celsius, but under 5 it is too cold for me.

[@JoeJaguar]

Thanks for the comment. And thanks for watching the video. Yeah, I understand about the temperature sometimes. I don’t mind so much because my backyard is just a few feet so I can go inside warm up and then go back out but I guess if you travel for your viewing then that makes it a lot harder That’s one of the reasons why I observe as much as I can from my backyard because it’s so convenient even though the light pollution is so extreme when I actually do get away for a week or a weekend that’s when I’ll do the more deeper stuff Cheers

[@mikenofi281]

Insulating a telescope to avoid cool down will have the opposite effect. According to Newton’s Law of Cooling, the rate of change of temperature should be proportional to the difference between the temperature of the object and the ambient temperature. Insulating the telescope to reduce the temperature gradient will greatly slow the time to equilibrium. Instead of taking an hour to cool down, it may take several hours, depending on the effectiveness of the insulation. It is basic physics. Interestingly, much of the heat will initially radiate up and out through the objective lens (which can’t be insulated). This will raise havoc with the wavefront.

[@JoeJaguar]

I appreciate the info mike I have heard this on cloudy nights under the SCT forums where several people if not even more said this has been put to rest years ago when people have tested this I still have my doubts like you and a few others that’s why I’m testing this And according to this doesn’t seem like it worked So I’m trying to figure out if those people on cloudy nights actually have tested it or do they just think it does Now I have a feeling they might tell me well I didn’t use that real reflect lics it’s called that’s like a silver insulation and I’m not using an SCT or a Mac. Anyway, let’s see.

[@mikenofi281]

@@JoeJaguar You did a good job, and this is how the scientific method works. You put a lot of effort into this and we really appreciate your videos!

[@JoeJaguar]

@@mikenofi281 I appreciate the kind words my first video that I did well over a year ago maybe a year and a half ago or almost was on this but it was only on the members for him so most people haven’t seen that and then I did last week video and then this one but also welcomeI really liked that show called a MythBusters. They really try to do the best they can to either prove it or improve it so that’s what I want to do as well. Thanks for watching.

[@BurningFlame1999]

Like

[@JoeJaguar]

Thank you

[@lornaz1975]

I wonder if there was not such a temperature difference that it would perform better. It might be too cold for that insulation.

[@JoeJaguar]

Yeah, unfortunately I not on cloudy nights and they won’t let me go on, so I wouldn’t be able to ask that question for those people that say this works The rubber material I used is about an inch thick the ones that they talk about is more like one eighth of an inch

[@lornaz1975]

@@JoeJaguar What's going on about Cloudy Nights? Did they kick you off or something? Don't answer if I am being too nosey. As for an eighth of an inch thick that would not be much insulation.

[@JoeJaguar]

@@lornaz1975 yeah it was something like that. I joined in 2007 and some guy put me down saying I don’t know anything so I got upset and tried to put him down that he doesn’t know who I am and what I know and a lot of the stuff is based on preference and where you live to. Anyway, he’s been there a lot longer than me probably since the beginning and the admin took his side and gave me a warning. Meanwhile he’s the one that started it and I wanted him to have a warning as well, etc. so I didn’t back down so they banned me at this point I don’t care .

[@lornaz1975]

@@JoeJaguarBelieve it or not but I have never posted there. KZbin is really the only place I am really chatty. Tonight I was able to compare my 100DZ to the FS 102. I believe the DZ won. I will need more time to examine the two.

[@JoeJaguar]

@@lornaz1975 I understand I used to have TikTok as well with about 5000 followers but I found that about 80% of the time all I see is like the moon hoax videos and then the flat earth conspiracy and I just didn’t want to hear about it no more so I just deleted the whole account with all those followers I didn’t really care Thanks for sharing your findings on those two scopes was just a bit more sharper or more contrast I could probably believe that because the DZ is a new Scope. It could be very possible that they found the design now compared to 25 years ago, which gets a bit more contrast.