starstructure02 <zambianco@...> wrote: Hi Scott, This is Mike Zammit owner and builder of Starstructure Telescopes. I'm not here to solicit my scopes...
Hi Scott, Mirrors are key, but since 95% (a guesstimate) of Zambuto mirrors go into Starmasters (the rest, as far as I can determine - if even 5%, go into ...
Recently I did some (Internet) research on composite mirrors. With this technology it is possible to make very large, very fast mirrors weighing only a few...
I received my 20" Obsession in March, and have been thrilled with it. It has a Galaxy mirror, and at the last two star parties I attended, many commented on...
Hi Scott, Mirrors are key, but since 95% (a guesstimate) of Zambuto mirrors go into Starmasters (the rest, as far as I can determine - if even 5%, go into ...
To add some more information: The 36" mirror of 2 lbs is an extreme example of only 1 mm thick. A 32 mm thick example weighs just 12 lbs. About the same as a ...
... Starmaster. Scott, Two years ago, when I bought my Starmaster, I asked Rick Singmaster why I should buy Starmaster over an Obsession. He said, "Carl ...
Having built an ultra-light 12-inch with a 6 lb mirror with the scope coming in at about 35 lbs altogether, I ended up adding alot of the weight back in, both...
My ten inch Dob of all aluminum with a standard Pyrex thick mirror is 28 lbs. A friend's brother worked at Pilkington years ago. He made a 60"x72" mirror...
Sheesh, I just got in from an exciting collimation session. The weather has been so consistently stinky for long enough that I just spent 30 minutes...
Hahaha, same here in Atlanta. I've been collimating in the house just for something to do. I even set up my refractor to watch bugs on a tree through a...
Been sort of lurking here for a few months while I sell off my small scopes (11" Celestron GPS) and my sweet 15" Starsplitter w/Swayze mirror so I can buy an...
what do you thing about used byke weel for bigdob maybe it is a good way to do I nead advised from experiment constructor before mke a try jacques savard 47'N...
If you mean using a bike wheel for the alt bearing, see <http://www.velocity.net/~bwhiting/index.html> (especially the photo gallery). The leader of that club,...
Richard, Unfortunately you get into real world items like how is the brightness measured (V or B or what?)... and if it on a comparative basis what is the size...
I think it's "theoretical limiting magnitude" that you are after. http://observers.org/tac.mailing.list/2005/Mar/0494.html says: Apertue Faintest stellar ...
Based on my own experience, and other such lists I've seen, this looks extremely optimistic. Looking at the rest of the link, I see it's based on the ...
That's right. Mag. 8.5 is the naked eye limmag under an absolutely dark sky, not a realistic dark clear sky. With a telescope such a dark sky background is...
John Mahony ... on the ... There is of course more factors involved - one is the effect of sky background as seen in the eyepiece - ithers are of course object...
I don't think anyone has mentioned this site, but here's an interesting calculation for the limiting magnitudes for your telescope. It's fun to play with the...
Well, I'm kind of snake-bit, too. We finally had beautiful skies on Friday and Saturday nights, but I spent the weekend horizontal with an inner ear...
Faintest star???? I got a few Mag 15-ish galaxy objects over the past weekend visually with my 30"..... In 15min in Virgo I counted more than 200 galaxy...
two questions 1- how all this apply to binocular;I have 100X25 and see esealy all the star in pleiade in quebec city whit medium seing 2- beautifull...
Forgive me but I think you have all missed Richaards point.... he is not looking for theoritical - he is looking for real world! I believe he is just asking a...
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