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27 |
1,203 |
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29 |
3,107 |
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Friday's Sun, 2003/7/25 by
Dave Mitsky
I joined my friend Tony Donnangelo for some Friday morning (~15:30 to
16:00 UT) H-alpha solar observing today. I arrived after most of the
activity that Tony...
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0 |
609 |
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Question regarding reflective coatings. by
Chris1011
Neat looking toy, eh? =) Does anyone know how the general process works?
It's the same process that is used to deposit various layers on a
microprocessor...
( 1 2)
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12 |
1,374 |
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GP-C5 mount by
Mick
I am wondering if there is any concise instructions online for using the
setting circles
on the GP or C5 mount? After polar aligning, what is done next to set...
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1 |
849 |
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ok so this is by
Tom Markert
WAY OFF TOPIC, but to funny to pass up!
http://www.ananova.com/news/story/sm_801020.html
you gotta see this polar bear!
I havent had anything to drink in...
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8 |
610 |
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13 |
1,683 |
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July 25th 03 11:49 AM
by Erick
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6 |
1,191 |
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more about Mars magnification by
Mick
At present Mars should be over 1/2 degree at 100 X's, which is a full moon
disc. At 200 X's, Mars should appear
as the moon would at 100 X's. This just...
( 1 2)
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13 |
2,216 |
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Apo Lens Re-centering tools by
optidud
Learning that doublet apo with steeper curves that matches triplet
in color correction has more potential for decentering. I think I'll
keep my triplet and re...
( 1 2)
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19 |
1,877 |
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8 |
1,148 |
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Citronella candle residue by
Robert
The mosquitoes are getting to me even through a layer of Deet. I'm thinking
about putting a couple of citronella candles in the observatory but I'm
worried...
( 1 2)
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10 |
1,390 |
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12 |
1,732 |
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unknown object near Mars by
Matt
This object appeared in six of the wide angle photographs I took of Mars
with a camera using a 50mm f/1.8 lens. Because I could not find such a
bright object...
( 1 2)
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July 25th 03 04:07 AM
by Matt
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11 |
1,338 |
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2" to 1.25" adapter by
Bogdan Tudose
I got my new uo 5mm ortho, and I need a few extra mm of in travel to reach
focus with a 2" orion diagonal + adapter; the adapter adds 3/8" to the
top of the...
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4 |
1,480 |
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Lasik - pros and cons ? by
Cyberchondriac
Hi all,
I didn't see any threads already discussing this subject, so I ask:
Does anyone know of any absolute pros or cons regarding Lasik vision
correction...
( 1 2 3)
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21 |
1,834 |
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LPR filters by
Søren Kjærsgaard
Short and simple: Do they work?
The idea sounds pretty much ok, and since I live in a moderate light
polluted area maybe I should go for one...
They're still...
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4 |
1,570 |
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Mars images update by
Rod Mollise
I've updated my website to show a composite of mars images attempts
with a 4" apo through July. The result is visible on the front page
of my site. ...
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3 |
636 |
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New Widescans by
Rich McMahon
I have both the 13 and 20 and like them very much.. Havent had a
chance to compare them against Uncle Al''s stuff yet. But for the
price there great.
Rich
On...
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5 |
673 |
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Great APOD (Mars occultation) by
Davoud
gibbonsc:
Check out the APOD for a great image of the Mars occultation!
http://antwrp.gsfc.nasa.gov/apod/astropix.html
Yep, great image.
But, what's...
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2 |
1,017 |