I don't want spam from porn sites please remove redstarprincess from the list of members redstarprincess12 <redstarprincess12@...> wrote:Come give this...
I seem to remember an article in Sky and Telescope when they covered the use of computer software in astronmy that someone did do this with his astroscan. I ...
... Yes, please! This may open up possibilities for me in the future. ... I will have to dig up a copy of this paper. Thank you! Tom Krajci Tashkent,...
Hi Guys, I hope you had a productive new moon weekend. As promised, I have scanned my handy polar alignment aid into PDF form and made it available on my...
I did a star test on vega last night,and the result are bothering me, so I need some input please. First off, i did not have time to leave the scope equalize,...
I would suspect your clips are too tight. ... From: Rick To: atm_free@yahoogroups.com Sent: Tuesday, June 03, 2003 11:48 AM Subject: [atm_free] Re: Star test. ...
There are no clips holding the mirror in, just silicone blobs between the three post and the mirror. I'm wondering if I should have a nine point attachment...
There are no clips holding the mirror in, just silicone blobs between the three post and the mirror. I'm wondering if I should have a nine point attachment...
Hi Rick, Thanks for the clarification. My first thought is that your mirror is being strained, you might check you mirror cell to make sure nothing is binding....
... I recommend adding cooling fans to help speed this process. It'll help in those "I want to observe Jupiter NOW!" situations. Holes in the mirror cell are...
... with ... mirror ... need. Yes the mirror is attached to this platform with 6 RTV silicone blobs. Mirror is 7/8" thick. I have recieved a lot of responses...
Rick, Your spider is not going to give you these six sided star tests. It is pinched optics and the mirror cell is the culpret. A new mount is needed. This is...
Hello, I am sad to report that tonight I've changed the way folks will be allowed to become members of the ATM_FREE group. For the past few days I've been...
Ken, thanks for taking a stand. I find all that is needed is to put my group into new member moderated status. this way when someone joins If they post off...
... my ... before ... me ... Hi John, Thanks for the support! I'll check into the New Member Moderation thing! I already get the new member notification emails...
Hello Ken Yes, it is a shame that the trolls of the internet have to infect everything that they can. I am glad to see that you have taken the stand to keep...
Hello All, Star test report.. 10" F-6 Dob. Target star....Polaris Magnification....375x (4mm) 250x (6mm) Two hours after setting up, began testing. First test...
Dear all, There is a gallery which describe the history of Takahashi telescopes and equatorial mounts by photographs, some of them with brief illustration. ...
Hi Rick, It’s pretty clear your mirror cell is pinching the mirror, so your star test results aren’t an accurate representation of the un-stressed surface...
How did you determine that 9 is the correct number of points? And... are you going to "build" it, or BOND it? If you are going to bond it, I can offer...
Richard, ... I think this information is interesting for all of us not only those building their cells. Go on, publish! Regards, Vladimir PS 9" twins??...
Hello Vladimir, if he doesn't publish his method then try using metholated spirit to clean all surfaces as this leaves a microscopic film of water behind...
Hi Richard, When first I run the cell program last year, it recomended a 9 point floatation, I went with the six because after reading post on the topic,...
Sorry all, my last post was only supposed to go to Vladimir, I hit send before changing the address. Good job I said nothing heretical. regards Charles I just...
Ok, all I am ready to make my 9 point cell,it will consist of a 3/4" plywood tailgate, attached to the plywood ring on the end of tube(as per..Richard Berry, I...
Greetings all, I will need to test a convex sphere in the hopefully close future. I have never done this before so can the ronchi test be used and if so how? ...
Hello All, I have begun making a 9 point cell,here is what I have so far, the tailgate, consisting of a 13.5" disk of 3/4" plywood,the disk the mirror will set...
