Friday, October 13, 2017

EarthSky News - Oct 13 - Friday the 13th

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2017 has 2 Friday the 13ths

When a common year of 365 days starts on a Sunday, as it did this year, 2 Friday the 13ths are inevitable. The 1st one was in January and the 2nd in October.

Peering to the Milky Way's far side

Astronomers use parallax to directly measure the distance to a star-forming region on the opposite side of our Milky Way galaxy, nearly doubling the previous distance record.

Star of the week: Schedar, heart of a Queen

Cassiopeia the Queen is one of the easiest-to-recognize constellations. It has the shape of an M or W. Schedar is the Queen's brightest star.

Tonight … Find constellations of the zodiac

Constellations of the zodiac that are up after nightfall on these October evenings. 

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Next few mornings … Moon near Regulus 

Watch for the bright star Regulus near the moon in the next few mornings. And notice on this chart ... we're not showing a moon for October 15. That’s because, if we did, it’d hide the star Regulus from view. In fact, the moon will hide Regulus from view - seen from much of the U.S., Mexico, the Caribbean and southeast Canada - on Sunday morning.  Read more.

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Rainbow with anticrepuscular rays

Karl Diefenderfer must have been looking east at sunset on October 9, in order to photograph this rainbow with anticrepuscular rays, caught "as the remnants of hurricane Nate left southeastern Pennsylvania."

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