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From: TerryMoselaol.com
Date: Mon, 6 Mar 2006 19:06:34 EST
Subject: IAA on TV, Lecture, Lunar Eclipse

Hi all,
 
1. IAA featured twice on Sky At Night: The series  of programmes earlier this 
evening about the Sun featured photos by two IAA  members:
    In the Aurora section they used Mark Stronge's picture  of an aurora 
above Ballycopeland Windmill. And in the Transit section,  Peter Paice's montage 
of Mercury's Transit was featured. Good IAA  representation - well done!
 
2. Don't forget:  The next IAA meeting will be on Wed  8 March, 7.30 p.m., 
Stranmillis College, Stranmillis Road, Belfast. This will be  a double-header, 
featuring a presentation on the forthcoming Total Solar Eclipse  by Yours 
Truly, particularly covering the IFAS eclipse trip to Turkey; and also  a 'Hands-On 
Telescopes' session, by various IAA members. This will give you a  chance to 
see how to assemble, mount, and use a wide variety of telescopes and  mounts. 
Everything you were afraid to ask, and more, in other words! Admission  free, 
including light refreshments. All welcome.
 
3. Penumbral Lunar Eclipse on March 14 - 15 will be  barely noticeable to 
most people, but experienced observers may notice that the  Full Moon is not 
quite as bright as usual, and see a slight dimming of the  Moon's SSW edge, the 
part closest to the umbra, the central and  darkest part of the Earth's shadow. 
The moon passes completely inside the  penumbra, or 'partial shadow', of the 
Earth, but no part of it actually enters  the umbra, which would give a partial 
eclipse. So this is what is called a  'Total Penumbral Eclipse' - not to be 
confused with a Total Lunar Eclipse! It  begins on 21h 22m and ends on 02h 14m. 
The Moon will be just on the border  between Leo and Virgo, quite close to 
Beta Virginis.
   Of academic interest only, I'm afraid, but I attach a map  anyway. And in 
case you are wondering why the Earth's shadow is not centred on  the ecliptic 
(the diagonal line running from top right to bottom left), it's  because that 
is the view as seen from Belfast (about 55 degrees North),  rather than the 
'theoretical' geocentric view.


   
Clear skies,
 
Terry  Moseley

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