Observing Basics web extra: Explore an imperfect Moon
Use Robert Burnham's guide to the First Quarter Moon as you go out observing.
April 27, 2009
In the June issue of Astronomy, I encouraged you to follow in Galileo's footsteps and spend some nights observing the Moon. It the perfect destination for that maiden telescopic voyage. I often encourage viewing our only satellite during the 1-week observing window cenetered on the first quarter phase. Viewing along the terminator — the line that separates the light from the dark hemispheres of the Moon — highlights the cratered lunar surface.
The First Quarter Moon is the perfect destination for that maiden telescopic voyage. Viewing along the terminator highlights the cratered lunar surface.
Photo by John Vrabec
You are currently not logged in. This article is only available to Astronomy magazine subscribers.
Already a subscriber to Astronomy magazine?
If you are already a subscriber to Astronomy magazine you must log into your account to view this article. If you do not have an account you will
need to regsiter for one. Registration is FREE and only takes a couple minutes.
Non-subscribers, Subscribe TODAY and save!
Get instant access to subscriber content on Astronomy.com!
- Access our interactive Atlas of the Stars
- Get full access to StarDome PLUS
- Columnist articles
- Search and view our equipment review archive
- Receive full access to our Ask Astro answers
- BONUS web extras not included in the magazine
- Much more!