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Science Forum Index » Astro - Amateur Forum » The Vallis Rheita
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| Pete Lawrence |
 Posted: Fri Feb 23, 2007 7:03 am |
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| Anthony Ayiomamitis |
| Posted: Fri Feb 23, 2007 9:00 am |
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Pete Lawrence wrote:
Pete,
Lots of very fine detail on difficult targets. Don't knock the humidity,
for it usually means good seeing. I am always delighted to see humid
conditions with some fog since my skies are then perfectly still and I
can crank up the power when observing due to usually very good seeing.
Here are my attempts in relation to Petavius and Rheita:
http://www.perseus.gr/Astro-Lunar-L100-L016.htm
http://www.perseus.gr/Astro-Lunar-L100-L058.htm
Fingers crossed for next weekend as far as Luna is concerned.
Please keep 'em coming!
Anthony. |
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| John Carruthers |
| Posted: Fri Feb 23, 2007 9:50 am |
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On 23 Feb, 11:03, Pete Lawrence <pete.lawrence.nos...@pbl33.co.uk>
wrote:
Sharp Pete, will you be entering them in the Cloudy Nights
competition ?
My eyes are playing up, I keep seeing the craters as domes ;-(
jc |
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| Norbert |
| Posted: Fri Feb 23, 2007 12:12 pm |
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Pete Lawrence nous a donc écrit :
Whaouhhh  )
Really impressive.
--
Norbert. (no X for the answer)
======================================
knowing the universe - stellar and galaxies evolution
http://nrumiano.free.fr
images of the sky http://images.ciel.free.fr
====================================== |
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| a l l y |
| Posted: Fri Feb 23, 2007 12:30 pm |
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"John Carruthers" <joncarruthers@hotmail.com> wrote in message
news:1172238648.457087.169950@k78g2000cwa.googlegroups.com...
Quote: On 23 Feb, 11:03, Pete Lawrence <pete.lawrence.nos...@pbl33.co.uk
Sharp Pete, will you be entering them in the Cloudy Nights
competition ?
My eyes are playing up, I keep seeing the craters as domes ;-(
Oh, I'm glad it's not just me! I was looking at Pete's photos when my other
half came into the room, and when I pointed out my brain was reversing all
these craters he said he could see them normally. But as we talked about it,
and he started thinking about them being reversed, his brain did a sort of
flip and suddenly he too was seeing them as domes. And yet I can see
Anthony's photos of the same region the right way round. What's going on
here?
ally |
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| Pete Lawrence |
| Posted: Fri Feb 23, 2007 12:49 pm |
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On Fri, 23 Feb 2007 16:30:48 -0000, "a l l y"
<ally@situponDOGGIEseats.co.uk> wrote:
Quote:
"John Carruthers" <joncarruthers@hotmail.com> wrote in message
news:1172238648.457087.169950@k78g2000cwa.googlegroups.com...
On 23 Feb, 11:03, Pete Lawrence <pete.lawrence.nos...@pbl33.co.uk
Sharp Pete, will you be entering them in the Cloudy Nights
competition ?
My eyes are playing up, I keep seeing the craters as domes ;-(
Oh, I'm glad it's not just me! I was looking at Pete's photos when my other
half came into the room, and when I pointed out my brain was reversing all
these craters he said he could see them normally. But as we talked about it,
and he started thinking about them being reversed, his brain did a sort of
flip and suddenly he too was seeing them as domes. And yet I can see
Anthony's photos of the same region the right way round. What's going on
here?
It's because the light is coming from the bottom right. Most graphics
and images show the light coming in from the top left and your brain
gets used to that and tries to make sense of images in which this is
not the case (like mine here) by reinterpreting the craters as domes.
--
Pete Lawrence
http://www.digitalsky.org.uk
Last updated June 2006 |
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| Pete Lawrence |
| Posted: Fri Feb 23, 2007 1:06 pm |
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On 23 Feb 2007 05:50:48 -0800, "John Carruthers"
<joncarruthers@hotmail.com> wrote:
There - done it John. Looks good over there in the beginners section
;-)
--
Pete Lawrence
http://www.digitalsky.org.uk
Last updated June 2006 |
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| Ben |
| Posted: Fri Feb 23, 2007 2:02 pm |
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Pete,
Petevius - Splendid
Fabricius/Metius- Splendid
Rheita Valley ect., etc. - Splendid
Keep em' coming,
Ben |
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| Michael McCulloch |
| Posted: Fri Feb 23, 2007 3:57 pm |
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On Fri, 23 Feb 2007 11:03:37 +0000, Pete Lawrence
<pete.lawrence.nospam@pbl33.co.uk> wrote:
Really nice pics. Expensive 640x480 cam. ;-)
Glad to see some decent planetary cameras come into the market for
astro users, but I sure don't want to pay the price of entry to play
along. :-(
---
Michael McCulloch |
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| a l l y |
| Posted: Fri Feb 23, 2007 5:28 pm |
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"Pete Lawrence" <pete.lawrence@pbl33.co.uk> wrote in message
news:396ut25oatk8guaolqsn8anqb5900t45na@4ax.com...
Quote: What's going on here?
It's because the light is coming from the bottom right. Most graphics
and images show the light coming in from the top left and your brain
gets used to that and tries to make sense of images in which this is
not the case (like mine here) by reinterpreting the craters as domes.
--
Ah.... right. I just copied your photo and rotated it through 180 degrees,
and lo and behold, the craters have become properly concave. Thank you! This
has been an ongoing puzzle for me for a while with lunar photos.
(I'm now off to do some experiments, photographing everyday objects with the
light coming from the bottom right...)
ally |
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