brightness of Venus |
brightness of Venus |
 Dec 21 2007, 07:28 PM
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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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ncc1701d brightness of Venus Dec 21 2007, 07:28 PM
ngunn I would recommend sunglasses at least. Even at Ear... Dec 22 2007, 11:14 PM
ugordan If you were in a spaceship, even Earth would appea... Dec 23 2007, 12:04 AM edstrick Something I've worried about is a hazard when ... Dec 23 2007, 10:31 AM Stu QUOTE (edstrick @ Dec 23 2007, 10:31 AM) ... Dec 23 2007, 10:41 AM J.J. A pretty interesting question, one I've specul... Dec 23 2007, 03:46 PM dvandorn I'd just like to bring into this conversation ... Dec 23 2007, 04:50 PM JRehling The John Young incident is interesting, and not on... Dec 23 2007, 10:39 PM J.J. ^
Ditto--and the Sun is twice as bright at Venus... Dec 23 2007, 05:29 PM dvandorn Many of the Apollo astronauts chose to wear sungla... Dec 24 2007, 07:45 AM PhilCo126 Talking about a bright Venus, ESA made a website o... Jan 2 2008, 05:42 PM PhilCo126 Looking South these winter evenings, You'll no... Nov 25 2008, 05:42 PM Stu This is how they looked this time last week from n... Nov 25 2008, 05:47 PM CAP-Team Yes, Venus and Jupiter look very nice in the eveni... Nov 26 2008, 10:04 PM scalbers I suppose I need sunglasses just being on Earth... Nov 27 2008, 06:55 PM Enceladus75 I saw a stunning view of Jupiter and Venus in the ... Nov 27 2008, 10:09 PM bkellysky Here's Jupiter and Venus, just after sunset on... Nov 29 2008, 12:24 AM bkellysky Jupiter with brighter Venus below it. I took this... Nov 30 2008, 12:11 AM bkellysky Photos of the conjunction of the Moon, Venus and J... Dec 2 2008, 02:01 PM bkellysky A second photo from last night's conjunction -... Dec 2 2008, 02:04 PM PhilCo126 For those UMSF members/lurkers still observing the... Dec 17 2008, 04:43 PM bkellysky My most recent photo of the sky with Venus is from... Jan 16 2009, 10:04 PM AndyG QUOTE (bkellysky @ Jan 16 2009, 10:04 PM)... Jan 17 2009, 01:25 PM ugordan Jupiter's reflection (if any) would be vertica... Jan 17 2009, 03:06 PM bkellysky Good points! It must just be a camera artifac... Jan 17 2009, 03:54 PM bkellysky If people don't mind my using this thread to s... Apr 18 2009, 12:38 PM bkellysky Some parts of the United States got to see Venus e... Apr 24 2009, 11:31 AM bkellysky Here's a shot of Venus through my 8-inch Dobso... Apr 24 2009, 11:44 AM bkellysky Venus is now a brilliant object in the western sky... Jun 16 2010, 12:42 AM bkellysky Last night, I was taking pictures of Venus, et al.... Jun 16 2010, 11:47 AM bkellysky Venus, through my 8-inch dobsonian telescope, in t... Jul 6 2010, 01:17 AM ElkGroveDan Wow. Thanks. I do believe that's one of the ... Jul 6 2010, 02:36 AM nprev Agreed. I've always heard that Venus was often... Jul 6 2010, 02:41 AM Hungry4info I watched the most recent occultation of Venus by ... Jul 6 2010, 04:05 AM AndyG Nice one, Bob - though I was a bit before readin... Nov 4 2010, 09:46 AM bkellysky Venus was impossible to miss, low in the southeast... Nov 10 2010, 03:45 AM bkellysky Anytime up to an hour before sunrise, Venus is bri... Nov 11 2010, 02:13 PM bkellysky This morning's photo of a skyscape including V... Nov 12 2010, 12:19 PM |
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