Thursday, November 15, 2018

Nov 15 - A Planet for Barnard's Star

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Barnard’s star – 2nd closest star system to Earth – has a large proper motion, or sideways motion, on our sky’s dome. This image shows it, from 1991 to 2007. Now, this very nearby and famous star is known to have a planet! Image via One-Minute Astronomer.

At last, a planet for Barnard's Star
Awesome news! Astronomers are "99 percent confident" that this exoplanet is real. The planet for Barnard's star appears to be a cold super-Earth. Read more.
The enduring mystique of Barnard's Star
Sometimes called Barnard's Runaway Star, it's one of the best known stars in the history of astronomy and in popular culture. Read more.

Researchers walk back major ocean warming result

This is good news. Late last month, a team of researchers said Earth's oceans had warmed 60 percent more than earlier estimates. Now that result appears less likely, since a mathematician and climate contrarian has uncovered a scientific error. Read more.
Today is 1st quarter moon
The 1st quarter moon comes today at 14:54 UTC (translate UTC to your time). A 1st quarter moon is high up at sunset. It appears half-illuminated, like half a pie. Really, you're seeing half the moon's day side. Read more.

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Tonight … Moon and Mars close
Look outside tonight for a bright red "star" in the moon's glare. It's really the planet Mars!
All you need to know: 2018's Leonid meteor shower
Can you see a meteor in bright moonlight? Yes, if it's bright enough. Photo taken in late October 2016 by Eliot Herman in Tucson, Arizona. Moonlight will drown out some Leonid meteors in 2018, but there will be a dark-sky window, perfect for viewing, in the hours before dawn on November 17 and 18. Read more.
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