August 23, 2017

Review:Total Addiction by Kate Russo.

 

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Thank our good fortune for our one large Moon. While many an astronomer might curse its presence in the night sky, its very existence gives us an astronomical phenomenon that may well be unique in our neck of the galaxy; total solar eclipses. And that happy coincidence of having a Moon that’s roughly 1/300th the diameter of our nearest star but 300 times closer is also a happenstance of our position in time as well; the Moon is receding from us at about 3.8 centimetres a year, meaning that about 0.6 billion years hence, the last total solar eclipse will be seen from the surface of the planet Earth. [Read more...]

Astro-Events: A Close Conjunction and a Penumbral Eclipse.

Looking east Nov 27 two hours before sunrise.

(Created by the author in Starry Night).

This week sees the second eclipse of the November eclipse season and the spectacular return of the ringed planet to dawn skies.

First up is the penumbral eclipse of the Moon on November 28th. A Penumbral eclipse occurs when the Full Moon misses the dark inner umbra and instead passes through the indistinct, bright outer penumbra of the Earth’s shadow. You may not even notice the subtle shading of the Moon unless you’re looking for it. [Read more...]

Review: Exploring the Saros with Eclipse-Maps!

Paths over North America from 2001-2050.

(Click to enlarge)

(Courtesy of Eclipse-Maps)

It happens sometimes in the world of astronomy journalism. One of the funniest stories I’ve ever heard science journalist Bob Berman tell was that of an irate eclipse chaser. He had used his erroneous article based on a faulty prediction to plan his vacation to St. Kitts, which lay well outside of the path of totality. [Read more...]

AstroEvent: A Pacific-Spanning Annular Eclipse!

(Credit: NASA/A.T. Sinclair).

Live on the west coast of the United States? This weekend, you will get to witness a rare astronomical spectacle, the likes of which the continental U.S. has not seen since 1994.  On May 20th (21st across the International Date Line) an annular solar eclipse graces our fair planet. This eclipse is “annular” in the aspect that the Moon will be only 31 hours from an apogee of 406,450 kilometers around the time it passes between the Earth and the Sun, and thus will appear too small to cover the disk of our nearest star, as it normally does during a total solar eclipse. [Read more...]

June 2011: Life in the Astro-Blogosphere.

Awaiting darkness… (Photo by Author).

June is “hump month” here at Astroguyz HQ, as we approach the solstice, hurricane and thunderstorm season begins, and we slowly begin to start taking back the darkness. Now’s the time to overhaul that scope, align those mirrors, and await the return of dark skies. Here’s a brief look what’s up and coming from ye ole’ Astroguyz; [Read more...]

AstroEvent: An Arctic Partial Solar Eclipse.

(Credit: Eclipse Predictions by Fred Espenak, NASA’s GSFC).

Are you a frustrated astronomer “North of the 60°”? Are you tired of hearing about the dark sky exploits by friends in the lower 48 while you are immersed in the astro-hell of never-ending daylight? Trust me, we’ve been there; we spent 4 years living in North Pole, Alaska just outside Fairbanks, [Read more...]