Welcome to Astronomy & Telescope Astronomy



· Home
· AvantGo
· Content
· Downloads
· Encyclopedia
· 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




Select Interface Language:


  Random Headlines

[ 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


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.




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:

Very Good



 Printer Friendly Printer Friendly

 Send to a Friend Send to a Friend


Associated Topics


"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