| Thread | Last Post | Replies |
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| Finding minimum rotation period | 21 Jun 2006 01:01 GMT | 17 |
If given a planet's mass, radius, and density, how can I find out the minimum rotation period, or maximum rotation speed, assuming the planet is rotating around it's own axis and is a perfect sphere? Wikipedia only give a hint that for celestial bodies, the body's tensile
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| BBC Sky at night magazine | 20 Jun 2006 23:39 GMT | 1 |
Would anyone be interested in buying the first 4 issues, complete with CD's before I try on Ebay? Steve
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| Small telescope for use on holiday? | 20 Jun 2006 23:28 GMT | 9 |
I am in the lucky position of owning a holiday home in the British Virgin Islands, and I'm thinking of buying a telescope to use there. I have an LX90 at home in the UK, which is a little bulky for taking on aeroplanes and such, so I was thinking of something smaller like an
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| Earth's Currently Erupting Volcanos - 6-17-6 | 20 Jun 2006 22:44 GMT | 35 |
Earth's Currently Erupting Volcanos - 6-17-6 Lokon Empung Sulawesi Erupting Ambrym S.pacific Erupting Anatahan Mariana Is. Erupting
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| Back to life | 20 Jun 2006 21:13 GMT | 6 |
Europeans don't like gays much. They look down on them. But don't arrest them like in Texas, Bush's homeland of the world's securing seccuring securing, marketing, capitalizing, with police. Google is now securing their
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| Jupiter with Io in transit | 20 Jun 2006 20:54 GMT | 9 |
Reasonable seeing just after sunset. Captured this shot showing Io in transit. Seeing started to deteriorate slowly after this, but I think there may be a few reasonable captures yet to process. http://www.digitalsky.org.uk/jupiter/Jupiter_20060616_2042.jpg
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| The posts I read | 20 Jun 2006 17:20 GMT | 7 |
From what I' ve read I don't think anyone posting knows anything about scientific method, or thinking.
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| Telescopes - used, advice etc. Newbie! | 20 Jun 2006 15:25 GMT | 8 |
I just spent $100 on a used meade telescope (114EQ-DH4 4.5") which I had no idea was a dept store telescope. I spend about an hour searching for reviews, and came only found a few that said I will need to buy some better eye pieces for it. It was not till later that I found out it ...
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| Shuttle Launch to Go Ahead Despite Risk of 'Catastrophe' | 20 Jun 2006 13:04 GMT | 5 |
Shuttle launch to go ahead despite risk of 'catastrophe' JACQUI GODDARD AT CAPE CANAVERAL NASA managers have rejected last-ditch pleas from their top safety
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| Laser image of US Flag on the moon? | 20 Jun 2006 12:59 GMT | 18 |
Here's an idea! Could NASA or some other org paint a laser image of the US flag on the moon ever 9/11? __________________________ |XXXXXXX|==============|
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| Unique Lorentz Boost? | 20 Jun 2006 12:48 GMT | 1 |
18-JUN-2006 In the context of a Lorentz boost in the x,x' dimension, and in dimensionless terms where the velocity of light is given as c = 1, I've found for parameter 0 < v < 1, a solution that uniquely satisfies the
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| Honestjohn Drunken Pedo Boi | 20 Jun 2006 07:02 GMT | 7 |
He's posting now in alt.recovery.aa just in case anyone misses him. It appears he has had a breakdown and is ready to give up his life of sin for that of teetotaler. ~@o@~
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| collimation question | 20 Jun 2006 03:53 GMT | 4 |
Hi gang, major newbie here ... hope this is on-topic: I collimated by new orion 8" dob with apparent success ... the images through the eyepiece (with the collimation ring) look right according to the illustrations, and the scope squared up jupiter nicely for me
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| More on ALOTS | 20 Jun 2006 01:20 GMT | 5 |
In April I began my search on info for the "Airborne Lightweight Optical Tracking System" (ALOTS). It was for tracking and observing rocket launches and reentries developed for Apollo. I got new interesting info on it. The telescope was a 508 mm aperture / 5080 mm focal lenght ...
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| Eyepiece projection & FOV | 19 Jun 2006 23:23 GMT | 10 |
Is anyone out there who was successful using eyepiece projection to increase FOV of digital surveillance camera. It seems that eyepiece projection is used only to capture images of planets or moon. My setup is Meade ETX-80 scope , MaxView 40 eyepiece and KPC-650BH
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