Astronomy Blog

Share |

Partial Eclipse of the Moon

October 17, 2013; 4:05 PM

A eclipse of the Moon, officially called a penumbral eclipse, will occur the night of the 18th into the 19th.

It will be visible from the Americas (for the end), Europe, Africa and most of Asia (the beginning of the eclipse will be visible in east Asia). The western part of the Philippines (including western Luzon and Palawan) can see the penumbral eclipse at moonset.

The eclipse will last for about four hours. Being a penumbral eclipse, will be hard to see to the untrained eye.

A penumbral eclipse occurs when the Moon passes through the Earth's penumbra. The Earth's penumbra is the region in which only a portion of the light source is obscured by the occluding body. The penumbra causes a subtle darkening of the Moon's surface.

Map courtesy of

AccuWeather Astronomy on Facebook Content Coordinator Heather Vancil

I also wanted to add this eclipse calculator in the blog so you could play around with it.

You can leave your comments, as well as be part of a community where discussions on any astronomy subject, when you join AccuWeather's Astronomy Facebook Fanpage by clicking here. We are now well over 32,000 likes. Tell your friends about this site and blog and have them weigh in on some exciting issues. We encourage open discussion and will never criticize any idea, and no negative conversation will be allowed.

The experts on this Facebook page will keep you up to date on any astronomy-related subject. Please feel free to share your opinions.

And please keep the astronomy pictures coming. They have been simply amazing. Ask questions, share comments, share anything.

The views expressed are those of the author and not necessarily those of AccuWeather, Inc. or


Comments left here should adhere to the Community Guidelines. Profanity, personal attacks, and spam will not be tolerated.

More Astronomy Weather Blog

About This Blog

Astronomy Blog
The astronomy blog, by Mark Paquette, discusses stargazing and astronomy issues and how the weather will interact with current astronomy events.