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Optimum Aperture for Smallest star image? by
BllFs6
Hi all
Anybody got any ideas on this question?
Lets say you want to do some REALLY precision photometry with a CCD.
Lets assume you are in the southeast....
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December 19th 04 01:20 AM
by BllFs6
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608 |
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Sky & Telescope's News Bulletin - Dec 17 by
Stuart Goldman
========================================================================
* * * SKY & TELESCOPE's WEEKLY NEWS BULLETIN - December 17, 2004 * *...
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411 |
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340 |
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Wensday night by
starlord
Wendsnight, being clear and windless, I
packed up the scope and went to my spot.
Got set up by 5:45 so it was dark already
and the moon was in a good place for...
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4 |
381 |
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How much light will there be on Titan? by
RichA
Given Titan's cloud cover and distance from the sun,
is it possible the spacecraft will land in a pitch-black
surrounding? Even if there is no cloud cover...
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4 |
451 |
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New from Akronos: "What is Dark Energy?" by
Sam Wormley
Laura McFinlay wrote:
These are the provocative questions which this straightforward
communication addresses, from the physical and micropolitical
...
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410 |
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702 |
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Last Minute Astronomy Gifts by
Dawn Baird-Chleborad
Howdy gang!
My shop is having a $10 of $50 purchase sale with lots of cool Astronomy
themed gifts. The coupon code is CPFESTIVE and the sale lasts until...
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688 |
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Youth program in club by
Bill Tschumy
Our club is putting together a youth program. We will probably meet about
1/2 hour before the regular club meeting.
Can anyone suggest a few good ideas for...
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562 |
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Machholz and Cleopatra's Eye by
Florian
The comet is just over 2=B0 SE of little planetary nebula NGC 1535, =
Cleopatra's Eye, on Friday night. Using my TV76 and 16mm Nagler i could =
almost get the...
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December 18th 04 03:42 PM
by Florian
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321 |
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Question on light from Venus and full moon by
robert
I have a Q for someone here.
What is the formula for derriving flux (as a measure of light per unit
area per unit time) from the astronomy magnitude scale, for...
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2 |
426 |
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The justification of mediocre eyepieces by
RichA
The astro world is awash in junk eyepieces, re-badged
with any number of different dealer names, from China.
The reviews usually say something like,
"It...
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834 |
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Has anyone else read the IDA's MLO? by
Dawn Baird-Chleborad
I finally read it and was wondering if anyone else had and was willing to
discuss?
--
Dawn Baird-Chleborad
www.astronerds.com
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463 |
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Poor baby... by
Larry Stedman
http://skyandtelescope.com/news/article_1407_1.asp
"NASA administrator Sean O'Keefe announced his resignation late Monday
in a letter to President George W....
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665 |
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There goes the neighborhood... by
Larry Stedman
From http://skyandtelescope.com/news/article_1408_1.asp
"Yerkes On the Block
By Joshua Roth
December 15, 2004 | Yerkes Observatory may soon have a new...
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0 |
664 |
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Question on light from Venus and full moon by
robert
I have a Q for someone here.
What is the formula for derriving flux (as a measure of light per unit
area per unit time) from the astronomy magnitude scale, for...
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December 18th 04 02:03 PM
by robert
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443 |
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December 18th 04 06:20 AM
by TMA
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488 |
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717 |
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Aligning a Dob by
Benign Vanilla
Yesterday, I was talking to a friend about Iridium flares. I showed her how
to get on heavens above and find the passes near her house, and I explained
how to...
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