Welcome to Astronomy & Telescope Astronomy

 
 

  Modules

· Home
· AvantGo
· Content
· Downloads
· Encyclopedia
· FAQ
· Feedback
· Forums
· Journal
· Members List
· Private Messages
· Recommend Us
· Reviews
· Search
· Statistics
· Stories Archive
· Submit News
· Surveys
· Top 10
· Topics
· Web Links
· Your Account
 

  Who's Online

There are currently, 10 guest(s) and 0 member(s) that are online.

You are Anonymous user. You can register for free by clicking here
 

  Search



 

  Languages

Select Interface Language:

 

  Random Headlines


Mercury
[ Mercury ]

·Astronomy: Mercury - TRAVERSING THE SUN
·Astronomy: Mercury - Observation-OBSERVING MERCURY
·Astronomy: Mercury - FIRE AND ICE
·Astronomy: Mercury
 

 
  Venus: Astronomy: Venus - PENCIL AND CAMERA
Posted on Saturday, December 11 @ 01:36:26 CST by astronomy
 
 
  Venus

PENCIL AND CAMERA

The toughest part of sketching Venus is to avoid exaggerating its features, which are all of low contrast. Prepare sketch blanks ahead of time, using a standard scale, such as 1 mm per arcsecond, and checking the size of Venus in an almanac, magazine, or software.



It is fairly easy to take photos of a crescent disk, but the cloud features of Venus call for advanced techniques. For best results, photograph in UV light by using a UV transmitting filter, such as a Wratten 18A. A reflector tele-scope with a long focal length will give a suitably large image, but avoid Schmidt-Cassegrains, which have glass corrector plates that absorb UV light. Use eyepiece projection to enlarge the image, but make sure the lens elements are made of quartz or fluorite.

 
 
  Login

Nickname

Password

Don't have an account yet? You can create one. As a registered user you have some advantages like theme manager, comments configuration and post comments with your name.
 

  Related Links

· More about Venus
· News by astronomy


Most read story about Venus:
Astronomy: Venus - GREENHOUSE EFFECT

 

  Article Rating

Average Score: 0
Votes: 0

Please take a second and vote for this article:

Excellent
Very Good
Good
Regular
Bad

 

  Options


 Printer Friendly Printer Friendly

 Send to a Friend Send to a Friend

 

 
 
Associated Topics

Venus
 
 


 
 
"Login" | Login/Create an Account | 0 comments
The comments are owned by the poster. We aren't responsible for their content.
 
 


 
 
No Comments Allowed for Anonymous, please register
 
 


 
  Astronomy & Telescope Astronomy

All logos and trademarks in this site are property of their respective owner. The comments are property of their posters, all the rest © 2004 by Astronomy & Telescope Astronomy
You can syndicate our news using the file backend.php or ultramode.txt