Democratic Underground Latest Greatest Lobby Journals Search Options Help Login
Google

I need some opinions, re: the Venus Transit

Printer-friendly format Printer-friendly format
Printer-friendly format Email this thread to a friend
Printer-friendly format Bookmark this thread
This topic is archived.
Home » Discuss » The DU Lounge Donate to DU
 
Heyo Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jun-04-04 07:58 AM
Original message
I need some opinions, re: the Venus Transit
So.. I want to look at the Venus transit, obviously... if it's clear I'll catch the tail end of it here in south Florida.

I have a telescope, and binoculars... all that I am lacking is some kind of filter...

Enter the shipping department of my job. They have these static bags that they pack electronics in... they are a really dark film, and I notice the mroe layers you stack on the darker it gets..

I thought about expirimenting with a bunch of layers and remove them one at a time until I can see clearly but it's not too bright...

(4 or 5 layers or so seems to black out almost ALL light)

I don't want to burn my retunas out.. but this seems to be some kind of mylar film which is what they make the fileters of anyway.. (it's semi-reflective)..

I could cut that stuff to shape and use it however I wanted to.. it's be pretty sweet.

Heyo
Printer Friendly | Permalink |  | Top
Don_G Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jun-04-04 08:02 AM
Response to Original message
1. Wouldn't It Be Safer
To take a coat hanger and hang a piece of white cardboard behind the eyepiece to view the transit across the Sun indirectly?
Printer Friendly | Permalink |  | Top
 
Kolesar Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jun-04-04 08:11 AM
Response to Original message
2. That's dangerous! Make a pinhole viewer instead.
Edited on Fri Jun-04-04 08:13 AM by SpikeTrees
poke a pinhole in a large piece of cardboard and use it to focus an image of the sun on another, white, piece of cardboard that you hold up a foot or two away.

I saw a drawing for this in the newspaper. I bet you could google up: "pinhole camera" venus sun

edit: go here: http://www.shu.ac.uk/eclipse/observe.html
Printer Friendly | Permalink |  | Top
 
Salviati Donating Member (1000+ posts) Send PM | Profile | Ignore Fri Jun-04-04 11:29 AM
Response to Original message
3. I would go with the pinhole viewer...
Either that, or a little riskier use layers of the film to look at the sun directly, exposed photographic film also works pretty good for that. I would never try and use binoculars or a telescope, sounds way too risky for me, my eyesight is bad enough already...
Printer Friendly | Permalink |  | Top
 
DU AdBot (1000+ posts) Click to send private message to this author Click to view 
this author's profile Click to add 
this author to your buddy list Click to add 
this author to your Ignore list Tue Apr 23rd 2024, 07:56 PM
Response to Original message
Advertisements [?]
 Top

Home » Discuss » The DU Lounge Donate to DU

Powered by DCForum+ Version 1.1 Copyright 1997-2002 DCScripts.com
Software has been extensively modified by the DU administrators


Important Notices: By participating on this discussion board, visitors agree to abide by the rules outlined on our Rules page. Messages posted on the Democratic Underground Discussion Forums are the opinions of the individuals who post them, and do not necessarily represent the opinions of Democratic Underground, LLC.

Home  |  Discussion Forums  |  Journals |  Store  |  Donate

About DU  |  Contact Us  |  Privacy Policy

Got a message for Democratic Underground? Click here to send us a message.

© 2001 - 2011 Democratic Underground, LLC