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Youngest/oldest Moon you have observed/photographed? by Mark
Sky and Tel has discussed this quite a bit lately, and I managed to snap a pic of the 24 hour, 28 minute old Moon tonight just before it slipped below the...
(Multi-page thread 1 2 3 ... Last Page)
February 16th 05 04:41 AM
by DL Go to last post
40 2,104
Help with DSC setting DEC=0 (Sky Wizard 3) by Mike Pupeza
How do I set my DEC=0 for great alignments? I'm just back from the Winter Star Party and it was great. I had good observing for at least 4-5 hour on 3 nights,...
February 16th 05 01:29 AM
by Kruger Kid Go to last post
2 536
A great lunar read by CLT
Geologic History of the Moon by Don Wilhelms is one of the great reads on the moon. It has been out of print for ages though. However, a while back, it was...
February 16th 05 01:19 AM
by CLT Go to last post
0 497
Dangers of Remailers by Alex
The Brits didn't threaten to nuke Boston when the IRA were bombing London even though there was ample evidence to show that the USA was funding terrorism. Be...
February 16th 05 01:03 AM
by Won Phat Fuc Go to last post
4 468
Astro Website/Sketchbook Advice Sought by Sketcher
After a period of neglect I'm about to start filling another sketchbook with "finished" sketches based on "at the telescope" sketches. Some of the finished...
February 16th 05 01:00 AM
by Sketcher Go to last post
9 601
Whatever happened to Meade Series 5000.... by RichA
Eyepieces? They really are missing the intial wave of unexperienced enthusiasm. -Rich
February 15th 05 08:20 PM
by RichA Go to last post
0 432
Maybe it's time for a luxury SCT? by RichA
Every notice that SCTs are sort of "middle ground" when it comes to mechanics/looks? They don't have the build quality of the APs, TMBs, Questars, etc. But,...
(Multi-page thread 1 2 3)
February 15th 05 07:53 PM
by RichA Go to last post
22 1,346
Polar Alignment by Eric Johnson
My primary observing site is on the deck behind my two storey home. Aside from blocking a substantial portion of the northern sky, I have no way of aligning my...
February 15th 05 06:18 PM
by spiral_72 Go to last post
3 569
Teaching by Phil Hawkins
Morning All There appears to be a large difference in available courses on astronomy in the Southern Hemisphere to what is available in the Northern....
February 15th 05 07:48 AM
by Terry Bohlsen Go to last post
7 859
[CNN] Gov to use green/red lasers as airspace warning signals by Claude Ortega
So I guess that they have found a laser that is 'safe' to use in this application. http://www.cnn.com/2005/TECH/02/11/laser.demo/index.html -- Claude
February 15th 05 04:15 AM
by David G. Nagel Go to last post
9 471
in the spectrum of low expansion substrates how does BVC perform? by [email protected]
I've heard mixed reports of quality. thanks Fiona
February 15th 05 03:57 AM
by [email protected] Go to last post
0 489
Apparent brightness values of stars vary considerably by skatebiker
In several books, websites , etc. the values of the apparent magnitude of stars vary considerably of each information source. E.g. Sirius has mv = -1.58...
February 14th 05 09:52 PM
by Steve Willner Go to last post
6 693
Fun with Physics by Tom Kirke
Here is a recent paper posted to arXiv.org, I thought the title alone was worth a post, and as a bonus at no extra cost, you get the complete...
February 14th 05 09:35 PM
by Tom Kirke Go to last post
0 665
bulk spec and buy chinese telescopes by thanatos
Chinese optics are good and cheap Why can't we form buying cartels to go directly to the manufacturers - sort of like a mE-bay :) That way any interested...
February 14th 05 08:52 PM
by Tim Auton Go to last post
6 642
Working with the Cassini raw images by Thomas Womack
I have a cron job on one of my Unix boxes which downloads new raw images from the Cassini site when they become available. This means I now have on the order...
February 14th 05 07:42 PM
by [email protected] Go to last post
1 648
Comparo - light grasp of 6" f/5 vs. 8" f/4 by Mark
I recently purchased a Hardin Optical 8" f/4 Newtonian OTA for wide field visual use and astrophotography. Tonight I compared its light grasp to the 6" f/5...
(Multi-page thread 1 2)
February 14th 05 07:25 PM
by Mark Go to last post
12 961
Earthshine and the 4-day-old Moon by orion94nl
Hi all, On January 14th 2005 I observed the 4-day-old moon with the 4-inch refractor. In the Solar system section you will find an observing report and some...
February 14th 05 07:04 PM
by Mark Go to last post
2 486
APO cooling down by Lukman
How is the cooling down of a 5" or 6" apo determined? Is it dependent of the design? Will an F6 have faster cooling down than an F8 (or F9)? Lets assume that...
(Multi-page thread 1 2)
February 14th 05 06:32 PM
by RichA Go to last post
15 1,313
observing jupiter the next few years by md
hi, playing with my planetarium software I noticed that Jupiter is very low in the sky this year (I am at 52N) and will even be lower in the sky the next few...
(Multi-page thread 1 2)
February 14th 05 06:30 PM
by Cousin Ricky Go to last post
13 616
New Toy and Friendly Reminder by Dawn Baird-Chleborad
First, for your calculating pleasure, we have just uploaded a Newtonian Diagonal Calculator to our website. As my dear partner (and the husband who better...
February 14th 05 06:15 PM
by Larry Stedman Go to last post
1 453
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