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What to look for during Tuesday's rare transit of Venus
MSNBC ^ | June 3, 2012 | Joe Rao

Posted on 06/04/2012 7:45:31 AM PDT by C19fan

The last chance most of us will ever have to see the planet Venus pass in front of the sun is coming up this Tuesday. On that day, more than half the world will get to see an exceedingly rare event: a transit of Venus crossing the face of the sun at inferior conjunction. A transit of Venus is among the rarest of astronomical events, rarer even than the return of Halley's Comet every 76 years. Only six transits of Venus are known to have been observed by humans before: in 1639, 1761, 1769, 1874, 1882 and most recently in 2004.

(Excerpt) Read more at msnbc.msn.com ...


TOPICS: Astronomy
KEYWORDS: sun; venus
Cool astronomical event of Venus crossing in front of the sun will occur in North America tomorrow Tuesday at sunset. I wonder if I can take a direct photo with my camera or will the sun fry the lens?
1 posted on 06/04/2012 7:45:40 AM PDT by C19fan
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To: C19fan

I guess that is on the other side of the storm clouds...


2 posted on 06/04/2012 7:49:50 AM PDT by Ingtar ("As the light begins to fade in the city on the hill")
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Comment #3 Removed by Moderator

To: F15Eagle

Would the dark lens of a welder’s hood be safe enough .. just to locate the sun in the lens of the camera?


4 posted on 06/04/2012 7:53:43 AM PDT by knarf (I say things that are true ... I have no proof ... but they're true)
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To: C19fan
I have solar binoculars, I bet I can rig it up to a camera
5 posted on 06/04/2012 7:54:53 AM PDT by NativeSon ( Grease the floor with Crisco when I dance the Disco)
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Comment #6 Removed by Moderator

To: C19fan

Go to a camera store today and ask about a neutral density filter.


7 posted on 06/04/2012 8:06:48 AM PDT by Lou Budvis (Is it 2016 yet?)
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To: C19fan

You can watch it here.
http://events.slooh.com/

If any of you are in Los Angeles you can go to the Griffith Observatory to see it.
http://www.griffithobs.org/exhibits/special/Special_Event_Transit_of_Venus.html


8 posted on 06/04/2012 8:10:04 AM PDT by Jack Hydrazine (It's the end of the world as we know it and I feel fine!)
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To: Lou Budvis

Thanks!


9 posted on 06/04/2012 8:36:07 AM PDT by C19fan
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To: C19fan

I e got dibs on Tokyo viewing at 7:10am Wednesday morning. It will probably be cloudy, but I’ll be able to see it on the Web. I tried to find some #14 welding goggles, but no luck at the home store I went to. The event is too small to be impressive without a good telescope, but at least I’ll know that is happening in my morning sunshine with myself below.


10 posted on 06/04/2012 8:41:11 AM PDT by lefty-lie-spy (Stay metal. For the Horde \m/("_")\m/ - via iPhone from Tokyo.)
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To: Lou Budvis
Go to a camera store today and ask about a neutral density filter.

Danger Will Robinson. Make sure that you get a specific solar filter. Neutral density is only defined over the visual spectrum so can let through IR and UV. Also, I couldn't find anything over 4.0, and I've always seen 5.0 OD is the minimum for direct observation of the sun and probably more if you are looking through any lens. (remember, always filter the input of the camera/telescope/binoculars not the output)

Now where have I hidden my welding goggles. I don't want to have to buy another pair today.


11 posted on 06/04/2012 8:45:23 AM PDT by KarlInOhio (You only have three billion heartbeats in a lifetime.How many does the government claim as its own?)
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To: knarf

A welder’s hood yes, but not goggles for the torch. Try to use a number 10 lens.


12 posted on 06/04/2012 9:07:43 AM PDT by pallis
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To: C19fan

As rare is that is, I find it very strange that the last time was i n2004. Does anyone know why it is happening again so soon?


13 posted on 06/04/2012 9:32:25 AM PDT by CSM (Keeper of the Dave Ramsey Ping list. FReepmail me if you want your beeber stuned.)
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To: C19fan

To all. You don’t need to buy anything expensive and exotic to see this. Go to a store where you can buy the square dark lenses that fit into a welder’s helmet. Works great for eclipses and things like this. I watched the recent eclipse with mine with no problems.


14 posted on 06/04/2012 9:39:25 AM PDT by fish hawk (Religion: Man's attempt to gain salvation or the approbation of God by his own works)
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To: C19fan
Why bother?

Just go online and watch the video from the SOHO satellite.

15 posted on 06/04/2012 9:43:38 AM PDT by Bloody Sam Roberts (My dog, yes. My wife, maybe. My gun....NEVER!)
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To: fish hawk
Go to a store where you can buy the square dark lenses that fit into a welder’s helmet.

This will allow you to view the Sun with no problems but seeing Venus traverse the face will be like trying to view a grain of sand traversing the face of a light bulb at 20 feet.

16 posted on 06/04/2012 9:47:10 AM PDT by Bloody Sam Roberts (My dog, yes. My wife, maybe. My gun....NEVER!)
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To: C19fan

Just got back from the welding supply store.
Bought helmet glass densities #5, 10, 12. They were $1.75 ea. for 2½x4”.

My son took a pic during the last transit and it turned out great.

He said a piece of dense mylar should work for camera purposes, NOT the naked eye.


17 posted on 06/04/2012 9:58:44 AM PDT by Vinnie (A)
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To: C19fan
My son took this pic 2004 transit. 1.5 mp camera held up to the eyepiece of a 60mm telescope. Filtered of course. Photobucket
18 posted on 06/04/2012 10:14:52 AM PDT by Vinnie (A)
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To: Bloody Sam Roberts

More like a small fly very slowly passing in front of a bulb.

These transits are definitely visible to a good naked eye. Just use some very dark shades.


19 posted on 06/04/2012 11:04:57 AM PDT by varyouga
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To: knarf

I heard that it has to be a #14 shade, anything wlse would allow damage to the eye.


20 posted on 06/04/2012 11:16:59 AM PDT by Ratman83
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To: knarf
From Perkins Observatory:
(METHOD 3) Welder's Glass

Welding glass is used to protect welders from eye damage. The potential damage does not come from hot sparks hitting the eye (although that is a possibility). Rather, the glass prevents the light from the very hot arc from burning an image of itself permanently onto the back of the eye.

Be careful that you use the right kind of glass! Welder's glass is numbered from 1 to 14 with 14 being the darkest. It is only number 14 glass that is dark enough for solar viewing! And NO STACKING! A pair of number 7's or a 10 and a 4 together DO NOT have the same protection as a single piece of number 14 (see unsafe methods for more details).

But to tell you the truth, this method makes me a little nervous. Do we know with certainty that the company that made the glass is reputable, or that there are no defects in the glass? Are we willing to bet our eyesight on it? Personally, I prefer to project the image onto a piece of cardboard or watch the transit online.
21 posted on 06/05/2012 7:01:44 AM PDT by LibWhacker
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To: C19fan

Just saw it in New Orleans on the levee in Algiers Point.

Sun was just about to set and was obscured by distant thunderheads.

As it was just about to disappear below the horizon, it cleared bright red and was able to observe the disc of Venus for about 2 minutes thanks to an intense amateur astronomer who was hanging at the local bar and set up his reflecting telescope on the levee.

Proud to be one of the .00000000000000001% of humans to see such an awesome sight.

Beer in hand.


22 posted on 06/05/2012 6:20:56 PM PDT by Rome2000 (WILLARD ROMNEY -- MORMON MELCHIDEZEK BISHOP -HIS FAMILY HAS AVOIDED MILITARY SERVICE FOR GENERATIONS)
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To: Rome2000

Unfortunately it was overcast in Central VA. :(


23 posted on 06/06/2012 5:41:42 AM PDT by C19fan
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