... In case you are interested I just finished a laptop/chart holder for my XT10. Might be a little bit of an overkill for your needs but it would certainly do...
It doesn't because it has a screen upon which the image is projected. You could argue that a projection TV has an exit pupil which is the diameter of the image...
Charles - this is more than sort of off topic - it really has nothing to do with telescopes. I would ask you to refrain from questions of this nature and keep...
Hi Michael, Ditto here. I was out at Robert Moses State Park, Eastern Long Island and experienced the same thing. I thought it was turbulent air. I had major...
a and b may be related. If a radiation inversion develops (infrared radiation from the ground cools the air), you will experience dropping temperatures and may...
Hello, I'm Wouter D'hoye a belgian solar observer. I have two questions. Does anyone have expirience with the orion/vixen 102ED f/9. How would you rate it for...
... Welcome, Wouter! ... I've never used one myself, but a friend with a lot of experience tested one of the Celestron versions of this scope a few years ago...
... astigmatism ... how severe ... exit pupils ... Well,altough with some difficulty, I can read a telephone book without my glasses. Who is that good fried...
... I hate to admit it, but it was the notorious Rich Anderson, the scourge of sci.astro.amateur! His email is rander3127 at aol.com...replace the " at " with...
That's a good question, Ken. I haven't spoken to him since I did that piece for Astronomy. Did you send the company an e-mail or give them a call? I'd...
Wouter, Welcome to the group. As I relate in Star Ware, the Vixen 102 ED refractor is a very good telescope, but not as good as their fluorite refractor....
... rainbows ... Odd...I use a window screen as an el-cheapo diffraction grating spectrograph on public nights. By placing the screen over the aperture stars...
Nice laptop mounting table, Craig! Pics were nice. Would like to see the bottom of the platform to see how it pivots. Terry Lorch Charlotte, NC ... tube ... ...
... The Edmund "Metzger Glare Reduction Screen" I mentioned using back around 1960 was a screen which went right across the aperture. The screen material in...
... Indeed, it's very colorful. I've found my (made by Sirius Optics with 3-prong "clip" that fit over my dewshield) give me a sharper view at the central...
This is of small importance but I am curious. I have two orthos marked Japan (circle "t") which seem like any other circle t ortho. On top they are marked...
I've been lusting after a widefield scope for a while. My 2100mm FL DOB gives great views but I'd like to have a widefield instrument to complement it. Buying...
... The weather this past winter and spring has been so poor that I've only had my StarBlast out a few times. It performs surprisingly well for such a short...
... lures for ... Geoff, Which type of eyepieces do Canadian racoons prefer? Maybe they know something we don't! (Also, the next time I need to lure a...
... I have had one for a few months now. It is a very nice little scope. It does pretty good on planets. I am able to see all of the Pleides and the Beehive...
... PC ... great ... Hi Curtis, Click on this link and download "Virtual Moon Atlas": http://astrosurf.com/avl/UK_index.html I feel the same way since I got my...
This doesn't answer your question but I use a 102mm f5 refractor and it does a nice job at widefield viewing. Celestron and Orion have different versions of...
... The eyepiece which ended up halfway across my yard covered with muddy little fingerprints was my Meade 8.8mm Ultra Wide. Good taste! -- Geoff Gaherty ...
... PC ... great ... Curtis, here is another one that I really like: http://www.astro.hr/library/atlas_mjeseca/ For whatever reason, this site hasn't been...
