... that ... Hi Randy So you feel that 91% is fine and the harder to find Reagent grade is not nessessary? I've been a bit worried about the other 9% water ...
Hi: Due to job insecurity I need to sell my SM 14.5". It comes fully loaded with the Feather Touch focuser, Sky Command Digital Seeting Circles, Sky Tracker...
The other 9% (or 30%, if using the more common 70% alc) is distilled water, so if you're going to mix it with distilled water anyway, the % isn't that...
Thanks Mike, I contacted him. Eric ... From: Mike & Kim Myer <mdmyer@...> To: starmaster_scopes@yahoogroups.com <starmaster_scopes@yahoogroups.com> Date:...
We would like to remind you of this upcoming event. StarMaster Scope Chat Date: Sunday, October 3, 2004 Time: 6:00PM EDT (GMT-04:00) Chat session for...
starmaster_scopes@yah...
Oct 3, 2004 10:03 am
13552
... I agree that it really doesn't matter whether you use 70% or 91% if you are going to mix it with distilled water. The reason I prefer 91% is that I've...
... Thanks Scott, I tested different eps with M-13 and the Panoptic 19s with TV BV seemed best with 164x and 0.41* FOV for the 14 1/2". The GC club should be...
Good morning everyone, I have finally gotten some dark time with my new 14.5" Starmaster and am enjoying it very much. I do have a question. It is clear that...
... My thoughts are that Rick has probably done all of this math and experimenting and he has figured out which secondary should be in the scopes and that is...
Well Mike, I appreciate the input. Perhaps that would be best. But clearly the secondary is vingnetting the primary, which means I am not using the whole...
I disagree entirely. In the design of a Newtonian, the choice of secondary size is always a compromise between using a larger diagonal for less vignetting for...
John, I am glad that you used the words "at most locations on earth". It appears that Florida as a location is allowing Rick's 24" scopes to achieve full...
In your 28" f/4.5, a low-profile focuser with the 4.5" diagonal will give 100% illumination somewhere in the neighborhood of a 0.5" diameter circle capturing...
John May I ask how you determined that the secondary is vignetting? I no longer own a Starmaster but I have my homebuilt 14.5 f4.3 with a 2.6 inch secondary....
I have bad credit, I am self employed and I was able to re-finance at a really low rate. I am saving hundreds a month Just fill out this simple FREE form for a...
Greetings all, I think people are misunderstanding my question. It's not whether or not I have a fully illuminated field, nor is it how large is my ...
John, What we have not been informed of is the criteria by which you made the determination that you're not getting full use of the primary. We read a...
... SNIP ... I have been following this thread both here an oin the Zambuto mirror group. And, generally speaking, if you are unable to see the whole primary...
The minimal size of the secondary can easily be calculated There's nothing mythical to it.. There's a very good program: diaogonal.zip. It can be downloaded...
I think so. I am not always certain about the right English word. What does 'minimal' mean? Thanks, Jan http://home.wanadoo.nl/jhm.vangastel/Astronomy/ ... ...
Hello, Jan, Minimal means slight, very little. As, he paid minimal attention to her. Mimimum means the least that will satisfy a criterion. As, he was paid the...
... Those are the same thing. -John _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com...
... This sounds very unlikely, but Carl didn't clarify that you should have your eye centered. With the focuser racked in and your eye right up to the ...
The program "Newt" at <http://home.att.net/~dale.keller/atm/newtonians/newtsoft/newtsoft.htm> is also useful for stuff like this. Calculating the absolute bare...
Greetings all, I viewed tonight and took another look. When I racked the focuser all the way in and put my eye up to the focuser I could indeed see the whole...
To all involved with this thread: Well, it's a new scope so I'm out there kickin the tires. Gotta make sure everything is up to snuff, regardless of...
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