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F-ratios and brightness by
Brian Stephanik
could someone explain, in simple terms, why a shorter focal length is better
for DSOs than a longer one, given the same apature?
( 1 2 3)
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24 |
2,316 |
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Real-Time Saturn Shots Tonight? by
Dane
Are there any telescopes providing real-time shots of Saturn online
tonight? Can anyone provide URLS?
Thanks very much.
Dane
( 1 2 3)
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24 |
1,073 |
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Telescope for a Child -- Found! by
Davoud
Thanks to all who replied. Every respondent offered useful information!
I popped over to Company 7 this afternoon (not trying to start a debate
here!) and...
( 1 2 3)
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24 |
922 |
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Light Pollution Filters by
MW
Greets,
I am in a large So. California suburb area where light pollution
rules. It's probably not as bad as Washington DC but you can rarely
see the Milky...
( 1 2 3)
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24 |
2,280 |
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24 |
1,231 |
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cartes du ciel question by
Passero
I try to work with cartes du ciel but i find it difficult to locate a
specific star. I looked at the search function but i don't know what to
do... I don't...
( 1 2 3)
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24 |
1,121 |
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radio receivers for radio astronomy by
Peter Smith
I've been asked to help with setting up an amateur radio telescope but the
books I have are for amateur radio.
I wonder if anyone knows the requirements of a...
( 1 2 3)
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24 |
1,484 |
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24 |
1,128 |
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Photos by
Shawn Grant
I have photographed myself in the nude. Would anyone be interested in seeing
those photos?
( 1 2 3)
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24 |
1,049 |
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Orion SVP drive repair... by
David Showers
Somebody please hep me!
A little while ago, I broke the little (unprotected) bit of circuit
board that does double duty as structrual support for the...
( 1 2 3)
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24 |
861 |
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M31 and black hole by
Toma
I wonder if there is radio astronomical observations of a black hole jet
emanating from
the center of M31. It seems to me there should be considering the...
( 1 2 3)
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December 22nd 03 06:38 AM
by Toma 
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24 |
679 |
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$1000..which scope of these three by
Ashica67
1. Celestron C-10 N (non goto) EQ mount
2. Celestron 6in refractor
3. Hardin 12 inch Deep Space Hunter Dob. base.
All are about the same price.
What would...
( 1 2 3)
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October 22nd 03 09:35 AM
by Chuck
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24 |
2,026 |
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Size of Saturn by
SrkY
Hello all, first of all I am pretty NEW to the astronomy, so don't
mind me if I say something "unrelated" :)
Anyways, I own a Celestron NexStar 114, 114 mm...
( 1 2 3)
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24 |
1,183 |
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Orion 80mm ED APO ...ED or Fluorite? by
Tristan DiLapo
Hi All,
This new scope has raised quite a "stir" in the amateur community and I'm
patiently waiting for mine to arrive in the mail. I noticed on the Orion...
( 1 2 3)
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November 20th 03 06:29 PM
by Edward
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24 |
1,568 |
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Get my new Starmaster soon by
CHASLX200
I should have my Starmaster in about 3 weeks! This time it's with GO-TO and
tracking, and it's a 14.5".
I would have gone with a 18 or 20", but my doors are...
( 1 2 3)
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24 |
982 |
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TFOV & Brightness by
Neale Monks
Folks,
What would I see if I was comparing the view through three eyepieces
with the same true field of view, say a 40 mm Plossl, a 32 mm Plossl,
and a 24 mm...
( 1 2 3)
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24 |
859 |
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Am I crazy? by
Al
A couple of weeks ago, we had brutal bone chilling winds and I took
out my 2 month old dob (my first telescope) to find C/2002 T7 LINEAR
and to have a look at...
( 1 2 3)
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December 11th 03 04:02 PM
by Wfoley2
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24 |
1,845 |
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eBay Security update email? by
Bill Becker
This looks fishy to me:
"Dear eBay User,
During our regular udpate and verification of the accounts, we couldn't
verify your current information. Either...
( 1 2 3)
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24 |
1,360 |
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Is empty space infinite? by
KlingvilleBill
This is a serious question. Im not trying to be a troll. What is the latest
thinking on the scope of the universe? Does empty space really go on for ever
and...
( 1 2 3)
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December 15th 03 07:45 AM
by Fr Chas
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24 |
1,329 |
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974 |
