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Main
Date: 08 Sep 2006 00:34:13
From: Pete Lawrence
Subject: Partial eclipse + guest
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A lovely partial eclipse rising from the sea from my location. Lots of
photos to wade through but I was particularly interested to check this
one out, taken just as my youngest son Doug asked "Dad, why do you
take so many photos?". Now he knows ;-)
http://www.globalobservers.net/SkyImages/2006_Lunar/partial_lunar_eclipse+plane_800.jpg
--
Pete
http://www.digitalsky.org.uk
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Date: 08 Sep 2006 13:09:45
From: Llanzlan Klazmon
Subject: Re: Partial eclipse + guest
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Pete Lawrence <pete.lawrence.nospam@pbl33.co.uk > wrote in
news:jva1g293tq9m7te63fldc6u7qenba26uep@4ax.com:
> A lovely partial eclipse rising from the sea from my location. Lots of
> photos to wade through but I was particularly interested to check this
> one out, taken just as my youngest son Doug asked "Dad, why do you
> take so many photos?". Now he knows ;-)
>
> http://www.globalobservers.net/SkyImages/2006_Lunar/partial_lunar_eclipse
> +plane_800.jpg
>
Bah! It was below the horizon here in the antipodes!
Klazmon
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Date: 07 Sep 2006 16:54:01
From: Richard Adams
Subject: Re: Partial eclipse + guest
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Pete Lawrence wrote:
> A lovely partial eclipse rising from the sea from my location. Lots of
> photos to wade through but I was particularly interested to check this
> one out, taken just as my youngest son Doug asked "Dad, why do you
> take so many photos?". Now he knows ;-)
>
> http://www.globalobservers.net/SkyImages/2006_Lunar/partial_lunar_eclipse+plane_800.jpg
>
> --
> Pete
> http://www.digitalsky.org.uk
Ah, fly me to the moon!
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Date: 08 Sep 2006 10:13:25
From: Mike Williams
Subject: Re: Partial eclipse + guest
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Wasn't it a l l y who wrote:
>I'd also like to see an eclipse of the Earth
>from the lunar viewpoint - in other words, while a total solar eclipse is
>being observed from the Earth's surface. (I suppose this would just cast a
>big circular shadow on the face of the Earth, since it's so much bigger than
>the moon?)
There's lots of images of eclipses taken from satellites in high Earth
orbits. The view from the Moon would be much the same.
http://bobqat.com/Essays/disteyes/eclipse.html
http://antwrp.gsfc.nasa.gov/apod/ap990830.html
http://www.david-taylor.myby.co.uk/wxsat/eclipse-2006.htm
The last of those links also includes a movie made from the Meteosat
images of the eclipse shadow crossing the Earth.
--
Mike Williams
Gentleman of Leisure
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Date: 08 Sep 2006 15:01:08
From: a l l y
Subject: Re: Partial eclipse + guest
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"Mike Williams" <nospam@econym.demon.co.uk > wrote in message
news:QEyn+FA1QTAFFwdt@econym.demon.co.uk...
> Wasn't it a l l y who wrote:
>>I'd also like to see an eclipse of the Earth
>>from the lunar viewpoint - in other words, while a total solar eclipse is
>>being observed from the Earth's surface. (I suppose this would just cast a
>>big circular shadow on the face of the Earth, since it's so much bigger
>>than
>>the moon?)
>
> There's lots of images of eclipses taken from satellites in high Earth
> orbits. The view from the Moon would be much the same.
>
> http://bobqat.com/Essays/disteyes/eclipse.html
> http://antwrp.gsfc.nasa.gov/apod/ap990830.html
> http://www.david-taylor.myby.co.uk/wxsat/eclipse-2006.htm
>
> The last of those links also includes a movie made from the Meteosat
> images of the eclipse shadow crossing the Earth.
>
Some pretty spectacular pics there. Can't find the movie though....
ally
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Date: 08 Sep 2006 23:46:41
From: Sjouke Burry
Subject: Re: Partial eclipse + guest
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a l l y wrote:
> "Mike Williams" <nospam@econym.demon.co.uk> wrote in message
> news:QEyn+FA1QTAFFwdt@econym.demon.co.uk...
>
>>Wasn't it a l l y who wrote:
>>
>>>I'd also like to see an eclipse of the Earth
>>
>>>from the lunar viewpoint - in other words, while a total solar eclipse is
>>
>>>being observed from the Earth's surface. (I suppose this would just cast a
>>>big circular shadow on the face of the Earth, since it's so much bigger
>>>than
>>>the moon?)
>>
>>There's lots of images of eclipses taken from satellites in high Earth
>>orbits. The view from the Moon would be much the same.
>>
>>http://bobqat.com/Essays/disteyes/eclipse.html
>>http://antwrp.gsfc.nasa.gov/apod/ap990830.html
>>http://www.david-taylor.myby.co.uk/wxsat/eclipse-2006.htm
>>
>>The last of those links also includes a movie made from the Meteosat
>>images of the eclipse shadow crossing the Earth.
>>
>
> Some pretty spectacular pics there. Can't find the movie though....
>
> ally
>
>
At the bottom of the page(3MB)
splendid movie(avi)
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Date: 08 Sep 2006 07:37:55
From:
Subject: Re: Partial eclipse + guest
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In uk.sci.astronomy Pete Lawrence <pete.lawrence.nospam@pbl33.co.uk > wrote:
> A lovely partial eclipse rising from the sea from my location. Lots of
> photos to wade through but I was particularly interested to check this
> one out, taken just as my youngest son Doug asked "Dad, why do you
> take so many photos?". Now he knows ;-)
> http://www.globalobservers.net/SkyImages/2006_Lunar/partial_lunar_eclipse+plane_800.jpg
Nice photo, Pete.
Question to anyone who might know: have any photographs ever been taken
of the earth during a seen-from-earth lunar eclipse, from any spacecraft in
orbit around the moon or on its surface? I'm sure such would look pretty
spectacular, especially during a total eclipse.
--
Andy Clews
University of Sussex
Remove DENTURES if replying by email
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Date: 08 Sep 2006 16:59:34
From: Tim Cutts
Subject: Re: Partial eclipse + guest
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In article <edr6ki$dhi$3@south.jnrs.ja.net >,
<A.Clews@DENTURESsussex.ac.uk > wrote:
>
>Question to anyone who might know: have any photographs ever been taken
>of the earth during a seen-from-earth lunar eclipse, from any spacecraft in
>orbit around the moon or on its surface? I'm sure such would look pretty
>spectacular, especially during a total eclipse.
Certainly not from Apollo - the landings were timed so that the Sun was
only about 15 degrees abover the lunar horizon at the time and site of
landing. This was to have illumination as optimal as possible for
landing (as all of us who've looked at the moon through a telescope
know, the visible detail is best near the terminator, which a moment's thought
will tell you is where the Sun isn't far above the lunar horizon).
Consequently, Apollo landings never took place at full moon.
[ source for that is Michael Collins' excellent book about his
experiences as an astronaut "Carrying the fire". Probably the best
memoir of the Apollo project that I've read so far ]
Tim
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Date: 08 Sep 2006 10:12:46
From: Paul Schlyter
Subject: Re: Partial eclipse + guest
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In article <edr6ki$dhi$3@south.jnrs.ja.net >,
<A.Clews@DENTURESsussex.ac.uk > wrote:
>Question to anyone who might know: have any photographs ever been taken
>of the earth during a seen-from-earth lunar eclipse, from any spacecraft in
>orbit around the moon or on its surface? I'm sure such would look pretty
>spectacular, especially during a total eclipse.
This question is asked from time to time. Yes, Surveyor 3 did that in
1967, two years before the first manned lunar landing. Links to web
pages related to this, some with images, can be found here:
http://tinyurl.com/m9edy
I'm not aware of any other "total solar eclipse from the Moon" (i.e. a total
lunar eclipse for us) which has been photographed from the vicinity of the
Moon.
--
----------------------------------------------------------------
Paul Schlyter, Grev Turegatan 40, SE-114 38 Stockholm, SWEDEN
e-mail: pausch at stockholm dot bostream dot se
WWW: http://stjarnhimlen.se/
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Date: 08 Sep 2006 09:57:06
From: a l l y
Subject: Re: Partial eclipse + guest
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<A.Clews@DENTURESsussex.ac.uk > wrote in message
news:edr6ki$dhi$3@south.jnrs.ja.net...
>
> Question to anyone who might know: have any photographs ever been taken
> of the earth during a seen-from-earth lunar eclipse, from any spacecraft
> in
> orbit around the moon or on its surface? I'm sure such would look pretty
> spectacular, especially during a total eclipse.
>
Which would amount to a solar eclipse from the lunar observer's point of
view? I'd like to see that. I'd also like to see an eclipse of the Earth
from the lunar viewpoint - in other words, while a total solar eclipse is
being observed from the Earth's surface. (I suppose this would just cast a
big circular shadow on the face of the Earth, since it's so much bigger than
the moon?)
ally
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Date: 08 Sep 2006 10:48:53
From: Paul Schlyter
Subject: Re: Partial eclipse + guest
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In article <4mcpj0F5l0spU1@individual.net >,
a l l y <ally@situponDOGGIEseats.co.uk > wrote:
>
><A.Clews@DENTURESsussex.ac.uk> wrote in message
>news:edr6ki$dhi$3@south.jnrs.ja.net...
>
>>
>> Question to anyone who might know: have any photographs ever been taken
>> of the earth during a seen-from-earth lunar eclipse, from any spacecraft
>> in
>> orbit around the moon or on its surface? I'm sure such would look pretty
>> spectacular, especially during a total eclipse.
>>
>Which would amount to a solar eclipse from the lunar observer's point of
>view? I'd like to see that.
Check out: http://tinyurl.com/m9edy
>I'd also like to see an eclipse of the Earth
>from the lunar viewpoint - in other words, while a total solar eclipse is
>being observed from the Earth's surface. (I suppose this would just cast a
>big circular shadow on the face of the Earth, since it's so much bigger than
>the moon?)
Check out:
http://antwrp.gsfc.nasa.gov/apod/ap021209.html
http://antwrp.gsfc.nasa.gov/apod/ap980312.html
http://theastropages.com/articles/articles011.htm
http://en.wikipedia.org/wiki/Image:ESC_large_ISS012_ISS012-E-21351.JPG
--
----------------------------------------------------------------
Paul Schlyter, Grev Turegatan 40, SE-114 38 Stockholm, SWEDEN
e-mail: pausch at stockholm dot bostream dot se
WWW: http://stjarnhimlen.se/
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Date: 09 Sep 2006 11:02:07
From: Barry Schwarz
Subject: Re: Partial eclipse + guest
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On Fri, 8 Sep 2006 07:37:55 +0000 (UTC), A.Clews@DENTURESsussex.ac.uk
wrote:
>In uk.sci.astronomy Pete Lawrence <pete.lawrence.nospam@pbl33.co.uk> wrote:
>> A lovely partial eclipse rising from the sea from my location. Lots of
>> photos to wade through but I was particularly interested to check this
>> one out, taken just as my youngest son Doug asked "Dad, why do you
>> take so many photos?". Now he knows ;-)
>
>> http://www.globalobservers.net/SkyImages/2006_Lunar/partial_lunar_eclipse+plane_800.jpg
>
>Nice photo, Pete.
>
>Question to anyone who might know: have any photographs ever been taken
>of the earth during a seen-from-earth lunar eclipse, from any spacecraft in
>orbit around the moon or on its surface? I'm sure such would look pretty
>spectacular, especially during a total eclipse.
During a seen-from-Earth lunar eclipse, a lunar observer is seeing a
solar eclipse. However, the viewer is the same distance away. Since
Earth is much larger then the moon, it appears as a ~1.5 degree disk
instead of the ~.5 degrees the moon occupies. The distance to the sun
is effectively the same so it still appears as a ~.5 degree disk to
both observers.
One of the things that makes a total solar eclipse so spectacular is
the nearly identical sizes of the solar and lunar disks, creating the
halo effect. Another is the lack of a lunar atmosphere which allows
tangential sunrays to travel through valleys unmolested (Bailey's
Beads?). For a lunar observer, neither of these will be true.
On the other hand, I would be little surprised if some atmospheric
effects were not visible, even if somewhat dimly. Depending on what
part of Earth was facing the moon at the time, the metropolitan light
show might also be interesting.
Remove del for email
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Date: 09 Sep 2006 12:01:19
From: SkySea
Subject: Re: Partial eclipse + guest
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There have been several photos from Earth orbit, though I've never
seen or heard of one from lunar orbit. The only difference would be
the angular size of the Earth in the image. Here are some samples
taken from Earrh orbit on the Astronomy Picture of the Day site:
http://antwrp.gsfc.nasa.gov/apod/ap031127.html
http://antwrp.gsfc.nasa.gov/apod/ap021209.html
http://antwrp.gsfc.nasa.gov/apod/ap980312.html
http://antwrp.gsfc.nasa.gov/apod/ap040926.html
>A.Clews@DENTURESsussex.ac.uk wrote:
>Nice photo, Pete.
>
>Question to anyone who might know: have any photographs ever been taken
>of the earth during a seen-from-earth lunar eclipse, from any spacecraft in
>orbit around the moon or on its surface? I'm sure such would look pretty
>spectacular, especially during a total eclipse.
=============
- Dale Gombert (SkySea at aol.com)
122.38W, 47.58N, W. Seattle, WA
http://flavorj.com/~skysea
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Date: 10 Sep 2006 08:13:20
From: Paul Schlyter
Subject: Re: Partial eclipse + guest
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In article <2jr5g2tr9u5p0g05i8sf9qqel44i57ks2j@4ax.com >,
Barry Schwarz <schwarzb@doezl.net > wrote:
> During a seen-from-Earth lunar eclipse, a lunar observer is seeing a
> solar eclipse. However, the viewer is the same distance away. Since
> Earth is much larger then the moon, it appears as a ~1.5 degree disk
> instead of the ~0.5 degrees the moon occupies.
Actually, the Earth will appear as a ~2.0 deg disk as seen from the
Moon. The Earth's umbra appears to be ~1.5 deg large at the Moon's
distance though, as seen from the Earth (the penumbra appears ~2.5
deg large.
> The distance to the sun is effectively the same so it still appears
> as a ~0.5 degree disk to both observers.
>
> One of the things that makes a total solar eclipse so spectacular is
> the nearly identical sizes of the solar and lunar disks, creating the
> halo effect. Another is the lack of a lunar atmosphere which allows
> tangential sunrays to travel through valleys unmolested (Bailey's
> Beads?). For a lunar observer, neither of these will be true.
>
> On the other hand, I would be little surprised if some atmospheric
> effects were not visible, even if somewhat dimly.
Atmoshperic effects due to the Earth's atmosphere will be quite vividly
visible! If the Moon is at the center of the Earth's umbra, as seen
from the Moon a bright "ring" of light will appear around the Earth.
During a bright (L=4) lunar eclipse, this "ring of light" can shine
as bright as the Earth itself does at New Moon (when the Earth appears
"full" as seen from the Moon). During a very dark (L=0) lunar eclipse,
this "ring of light" can appear hundreds of times fainter - perhaps
slightly fainter than the solar corona itself.
Otoh, from the surface of the Moon, an artificial solar eclipse can
be created anytime you want to view the solar corona: let some object
hide the disk of the Sun, and also shield your field of view from the
solar lit lunar landscape around you. Then you can view the solar
corona anytime you want - you won't be dependent on the Earth hiding
the Sun for you to see it.
> Depending on what part of Earth was facing the moon at the time,
> the metropolitan light show might also be interesting.
I think you'd have a hard time seeing that at all. From a satellite
in low earth orbit, or from an airplane, it's easy to see (because
you're so close to it, but also because there's no twilight
disturbing your view). But from the Moon, that "ring of light" would
dazzle your eyes too much. Otoh you could borrow the coronagraph
technique to see it: let some annular shaped object hide that "ring
of light" so you can view the dark side of the Earth more
undisturbed. A major metropolitan area might then appear as a "star"
with a magnitude of perhaps 5 or 6 or 7 .....
--
----------------------------------------------------------------
Paul Schlyter, Grev Turegatan 40, SE-114 38 Stockholm, SWEDEN
e-mail: pausch at stockholm dot bostream dot se
WWW: http://stjarnhimlen.se/
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Date: 07 Sep 2006 19:05:44
From: Bill Cotten
Subject: Re: Partial eclipse + guest
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"Pete Lawrence" <pete.lawrence.nospam@pbl33.co.uk > wrote in message
news:jva1g293tq9m7te63fldc6u7qenba26uep@4ax.com...
>A lovely partial eclipse rising from the sea from my location. Lots of
> photos to wade through but I was particularly interested to check this
> one out, taken just as my youngest son Doug asked "Dad, why do you
> take so many photos?". Now he knows ;-)
>
> http://www.globalobservers.net/SkyImages/2006_Lunar/partial_lunar_eclipse+plane_800.jpg
>
Hi Pete
Congratulations on your nice image. It looks very much like the cover photo
on the Reflector, official publication of the Astronomical League. My copy
arrived in the mail just minutes before I saw your photo.
Bill
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Date: 08 Sep 2006 20:50:32
From: Mike Williams
Subject: Re: Partial eclipse + guest
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Wasn't it a l l y who wrote:
>
>"Mike Williams" <nospam@econym.demon.co.uk> wrote in message
>news:QEyn+FA1QTAFFwdt@econym.demon.co.uk...
>>
>> There's lots of images of eclipses taken from satellites in high Earth
>> orbits. The view from the Moon would be much the same.
>>
>> http://bobqat.com/Essays/disteyes/eclipse.html
>> http://antwrp.gsfc.nasa.gov/apod/ap990830.html
>> http://www.david-taylor.myby.co.uk/wxsat/eclipse-2006.htm
>>
>> The last of those links also includes a movie made from the Meteosat
>> images of the eclipse shadow crossing the Earth.
>>
>Some pretty spectacular pics there. Can't find the movie though....
Down at the bottom of the page, just below where it says "Movie from
Meteosat-8 images".
--
Mike Williams
Gentleman of Leisure
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Date: 08 Sep 2006 22:32:20
From: a l l y
Subject: Re: Partial eclipse + guest
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"Mike Williams" <nospam@econym.demon.co.uk > wrote in message
news:nbNaJCAImcAFFwrc@econym.demon.co.uk...
> Wasn't it a l l y who wrote:
>>
>>"Mike Williams" <nospam@econym.demon.co.uk> wrote in message
>>news:QEyn+FA1QTAFFwdt@econym.demon.co.uk...
>>>
>>> There's lots of images of eclipses taken from satellites in high Earth
>>> orbits. The view from the Moon would be much the same.
>>>
>>> http://bobqat.com/Essays/disteyes/eclipse.html
>>> http://antwrp.gsfc.nasa.gov/apod/ap990830.html
>>> http://www.david-taylor.myby.co.uk/wxsat/eclipse-2006.htm
>>>
>>> The last of those links also includes a movie made from the Meteosat
>>> images of the eclipse shadow crossing the Earth.
>>>
>>Some pretty spectacular pics there. Can't find the movie though....
>
> Down at the bottom of the page, just below where it says "Movie from
> Meteosat-8 images".
>
Oh that's quite beautiful! Thanks.
ally
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Date: 11 Sep 2006 22:17:06
From: =?ISO-8859-1?Q?Anders_Ekl=F6f?=
Subject: Re: Partial eclipse + guest
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Pete Lawrence <pete.lawrence.nospam@pbl33.co.uk > wrote:
> A lovely partial eclipse rising from the sea from my location. Lots of
> photos to wade through but I was particularly interested to check this
> one out, taken just as my youngest son Doug asked "Dad, why do you
> take so many photos?". Now he knows ;-)
Dammit!
I missed this one on an otherwide perfect evening. We were a group being
treated with a night tour of Cambridge and where standing outside the
Eagle (*) just one hour after maximum when we noticed the moon behind
our backs.
Our guide and host questioned that the moon was really full.
Since I didn't carry my almanac around I couldn't tell exactly.
Had we left dinner an hour earlier there would have been no doubt...
(*) The very pub where Crick and Watson in 1953 announced their
discovery of how DNA carries genetic information. I even took a snapshot
of the memorial plate in the moonlight!
--
I recommend Macs to my friends, and Windows machines
to those whom I don't mind billing by the hour
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