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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
aol.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
