Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Stephen James O'Meara's Secret Sky

Stephen James O'Meara's Secret Sky: Test your vision: The perigee Moon

January 2010: Take advantage of January's lunar opportunities by locating these naked-eye features.
Contributed by Stephen James O'Meara
Published: November 23, 2009
Stephen James O'Meara
While looking at the Moon, have you ever wondered what the finest feature visible to the unaided eye might be? This month is a good time to find out because we have two Full Moons in a calendar month: on the evenings of December 31/January 1 and January 29/30.
Subscriber-Only Content Subscriber Only Access
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.
Login   Register
Non-subscribers, Subscribe TODAY and save!
Subscribe
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!
SEARCH SITE
Subscriber Only Access
Subscriber Only Content
Look for this icon. This denotes premium subscriber content. Learn more »
Become a Member of Astronomy.com
Register today for access to more valuable resource information.
Interact in our forums, comment on articles, receive our newsletter and much more!
Not a member?
Subscriber and Member Login
Password
Remember me