Difference between revisions of "April 13, 2013"
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=The Dark Side of the Moon= | =The Dark Side of the Moon= | ||
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<em>image by [mailto:rosen@pixmix.a.se Peter Rosén], Stockholm, Sweden</em><br /> | <em>image by [mailto:rosen@pixmix.a.se Peter Rosén], Stockholm, Sweden</em><br /> | ||
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| − | I have had a question in mind since a very long time: Does Earthshine look like the full Moon or will there be any | + | I have had a question in mind since a very long time: Does Earthshine look like the full Moon or will there be any |
| − | perceptible differences except of course a huge difference in illumination? Last month on the 15th of March there | + | perceptible differences except of course a huge difference in illumination? Last month on the 15th of March there |
| − | was a beautiful Earthshine so after photographing the crescent Moon, I started to expose "the dark side" at the | + | was a beautiful Earthshine so after photographing the crescent Moon, I started to expose "the dark side" at the |
| − | same high magnification. It proved very difficult because the illuminated crescent would dazzle the dark features | + | same high magnification. It proved very difficult because the illuminated crescent would dazzle the dark features |
| − | much more than at a lower magnification so it has been a very hard work to join the 8 pictures together into an | + | much more than at a lower magnification so it has been a very hard work to join the 8 pictures together into an |
| − | Earthshine mosaic. To the left is the Earthshine version and to the right the same view of a full Moon photographed | + | Earthshine mosaic. To the left is the Earthshine version and to the right the same view of a full Moon photographed |
| − | on the 14th of October 2008. There is a difference in libration but I think that they compare well enough. The most | + | on the 14th of October 2008. There is a difference in libration but I think that they compare well enough. The most |
| − | obvious difference: On the full Moon there is always a part that casts shadows, but on the Earthshine shot, the light | + | obvious difference: On the full Moon there is always a part that casts shadows, but on the Earthshine shot, the light |
| − | emanates from our direction, the observers, and therefore there are absolutely no shadows anywhere.<br /> | + | emanates from our direction, the observers, and therefore there are absolutely no shadows anywhere. |
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<em>[mailto:rosen@pixmix.a.se Peter Rosén]</em><br /> | <em>[mailto:rosen@pixmix.a.se Peter Rosén]</em><br /> | ||
P.S.: As a bonus, I caught a meteor passing in front of Mare Humorum.<br /> | P.S.: As a bonus, I caught a meteor passing in front of Mare Humorum.<br /> | ||
<br /> | <br /> | ||
| + | <p><b>Yesterday's LPOD:</b> [[April 12, 2013|Rejuvenation]] </p> | ||
| + | <p><b>Tomorrow's LPOD:</b> [[April 14, 2013|Don't Hold the Olive]] </p> | ||
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Latest revision as of 16:05, 14 March 2015
The Dark Side of the Moon
image by Peter Rosén, Stockholm, Sweden
I have had a question in mind since a very long time: Does Earthshine look like the full Moon or will there be any
perceptible differences except of course a huge difference in illumination? Last month on the 15th of March there
was a beautiful Earthshine so after photographing the crescent Moon, I started to expose "the dark side" at the
same high magnification. It proved very difficult because the illuminated crescent would dazzle the dark features
much more than at a lower magnification so it has been a very hard work to join the 8 pictures together into an
Earthshine mosaic. To the left is the Earthshine version and to the right the same view of a full Moon photographed
on the 14th of October 2008. There is a difference in libration but I think that they compare well enough. The most
obvious difference: On the full Moon there is always a part that casts shadows, but on the Earthshine shot, the light
emanates from our direction, the observers, and therefore there are absolutely no shadows anywhere.
Peter Rosén
P.S.: As a bonus, I caught a meteor passing in front of Mare Humorum.
Yesterday's LPOD: Rejuvenation
Tomorrow's LPOD: Don't Hold the Olive
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