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Colour of Mars by
Dan McShane
Mick,
More something like this?
http://users.erols.com/dgmoptics/digital_mars_90ats.htm
Dan McShane
"Mick" wrote in...
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8 |
1,003 |
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Geomagnetic K-Index of 6 expected by
Sam Wormley
Space Weather Message Code: WARK06
Serial Number: 77
Issue Time: 2003 Jul 30 0439 UTC
WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2003 Jul 30 0450...
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0 |
985 |
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July 30th 03 04:55 AM
by Orion
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4 |
850 |
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making a 8" mirror by
heywood floyd
Hi,
I am a college student and I am considering making my own mirror, I was
wondering how hard it would be to create a 8" F/5 mirror from a pyrex
blank, I...
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3 |
1,114 |
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Orthoscopic eyepiece question by
Joe S.
I was browsing around the WWW tonight and encountered the University Optics
site and their Orthoscopic eyepieces. So, what's an Orthoscopic eyepiece
versus...
( 1 2 3 ... Last Page)
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July 29th 03 07:51 PM
by Zane
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39 |
1,860 |
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2 |
972 |
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Kobe Bryant by
My Word!
Just a blurb, I believe says it all.
What do you call a black guy who has too much money, counts his crack
in hotels, has 7 kids, doesn't pay child support,...
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3 |
614 |
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Kellner, Konig and Ortho by
[email protected]
I was looking at adding some eyepieces to my collection. I currently
have Meade Super Plossls, 6.4, 12, 15, 20, 26, 32, 40. I have a 2x
barlow, and a televue...
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July 29th 03 06:07 PM
by Edward
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1 |
682 |
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Using 1.25" Filters with .965" Eyepieces? by
Edward
Hello All,
I'm hoping to find a 1.25" to .965" adapter that will allow use of 1.25"
filters with .965 eyepieces. If I'm not successful with that, who's...
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July 29th 03 05:53 PM
by Edward
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6 |
923 |
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2 |
623 |
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Homemade telescope by
Red Green
I just built my first homemade telescope.
I used a cement mixer for the tube and mount,
a glass salad bowl for the lens, and duct tape
for everything else....
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2 |
707 |
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July 29th 03 03:36 PM
by Herm
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64 |
4,282 |
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Field Flattener for 11" F10 SCT by
Jose Suro
Hi,
Is it theoretically possible to build a 48mm format field flattener for an
11-inch, F10 SCT that would not change the F-ratio of the scope? Would it
have...
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July 29th 03 03:27 PM
by Herm
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9 |
1,403 |
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Fluorite vs. ED for film imaging by
PJ
I was recently imformed that a fluorite refractor is bad for film imaging
because the focus changes during long exposures, whereas an ED refractor
will retain...
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July 29th 03 02:29 PM
by Jb2269
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8 |
1,093 |
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Secondary size & CCD imaging by
Rod Mollise
Considering all this, could one not
replace the 4" secondary currently installed with something much
smaller, such as a 2.6" or 3"?
Hi:
You could....
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July 29th 03 02:12 PM
by Brian
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6 |
941 |
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1 |
3,399 |
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My C8 Mars Gallery by
Oldfield So
Dear all,
This is the first opposition since I started imaging:
http://oldfield.uhome.net/star/photo/c8/mars.html
Tracked using motorized Giro mount, inside...
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2 |
796 |
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Re. Millennium Mount ll ? by
Marc Zukoff
Hi,
I am considering a few months for an observatory. I am also
loooking at the Millennium mount-2. I have gotten a few reviews of
this mount, and they were...
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0 |
866 |
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Eyepieces and dew: question by
JAS
I have spent the last few mornings observing Mars. I live near a creek in a
wooded area and there is lots of moisture in the air. After about 30
minutes, the...
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1 |
1,298 |
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0 |
1,040 |