brightness of Venus |
brightness of Venus |
Dec 21 2007, 07:28 PM
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#1
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Junior Member Group: Members Posts: 91 Joined: 21-August 06 Member No.: 1063 |
I was wondering.
If Venus reflects 70 percent of the sunlight that hits it. If I was in spaceship on approach to that planet could I look at it with the naked eye out the window and not get blinded? Would I have to at least use sunglasses? I am wondering to how much brightness reduction is going on when processing the images before they are release to public or analized. thanks |
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Nov 4 2010, 01:52 AM
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Member Group: Members Posts: 100 Joined: 25-April 08 From: near New York City, NY Member No.: 4103 |
Crescent Venus with a Canon XS and my 8-inch dobsonian telescope.
Venus is in front of the sun, in the sky about a fist width to the upper right of the sun (the distance increases every day). I was able to find Venus in 8x25 binoculars, then pointed my telescope in the same area. Venus is large for a planet and a thin crescent. See my blog for the full photo, cropped here to save space. The rainbow colors are due to the turbulent atmosphere and camera motion. Venus was only about 10 degrees above the horizon at the time, a half hour after sunrise. I haven't seen it without binoculars, but Venus is amazingly bright once you find it and the crescent shape could be seen by other people with the binoculars when I told them where to look. bob http://bkellysky.wordpress.com/ |
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Nov 4 2010, 09:46 AM
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#3
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Member Group: Members Posts: 593 Joined: 20-April 05 Member No.: 279 |
Nice one, Bob - though I was a bit before reading on your blog "...I blocked out the sun".
Thank goodness for that. Andy |
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