April 9, 2020

Astro-Event: Ushering in Spring 2012.

The Double Shadow transit at 3UT on March 23rd.

(Graphic created by Author in Starry Night).

Residents of the northern hemisphere take heart; the spring or Vernal Equinox occurs this week on March 20th. This is the moment that the Sun crosses the celestial equator as seen from our Earthly vantage point and begins its march north into positive declinations. The exact moment occurs at 05:14UT/01:14 EDT early Tuesday morning, the earliest its occurred since 1896 and the earliest until 2016 when it slides back another 44 minutes. [Read more...]

AstroEvent: An Antarctic Partial Solar Eclipse.

Animation of the November 25th Eclipse. (Credit: NASA/A.T. Sinclair).

Opting out of the “Black Friday” shopping madness? We’ve got good news. In addition to the launch of the Mars Curiosity spacecraft and complementing NASATweetup on November 25th, a partial solar eclipse occurs deep in the southern hemisphere. Maximum partiality will be 90% just off of the coast of Antarctica, and the entire Antarctic continent will witness the event. (Remember, its spring headed towards summer Down Under!) [Read more...]