Tonights Lunar Eclipse

The November 28 penumbral eclipse of the moon will be the last eclipse of the year. People in Alaska, Hawaii, New Zealand, Australia, and most of Asia will be on the correct side of Earth to see the eclipse. The western U.S. and Canada will also catch part of it.

So Alaska, Hawaii, New Zealand, Australia, and east Asia will see the entire eclipse on November 28. For western Canada and the western U.S. moonset will happen sometime after mid-eclipse. For eastern Canada and the eastern U.S., the eclipse will begin after moonset. No eclipse on November 28 for you in the east … sorry.

Penumbral eclipse starts – 12:14:58 UTC – 23:14:58 AEDT
Greatest eclipse – 14:33:00 UTC – 01:33:00 AEDT
Penumbral eclipse ends – 16:51:02 UTC 03:51:02 AEDT

Visibility of penumbral lunar eclipse of November 28, 2012. Image Credit: Fred Espenak

At mid-eclipse, nearly the whole moon will be submerged in Earth’s light penumbral shadow. The exact eclipse magnitude is 0.9155 which means that the best time to look at this eclipse is about 30 minutes or so before and after mid-eclipse and look for a light grey shading.

The fact is that Earth’s shadow has two parts: a dark inner umbra and a lighter surrounding penumbra. It’s this lighter penumbral shadow of Earth that the moon will enter on November 28, 2012.

In 2013, there will be three lunar eclipses – a 27-minute partial on April 25, and two penumbrals.