Tuesday, October 23, 2018

Oct 23 - What are Hole-Punch Clouds?

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Patricia Evans spotted this hole-punch cloud in 2015 from a restaurant parking lot.

Good morning!

 

What are hole-punch clouds?

Ever seen one of these? People sometimes report them as UFOs. They're called hole-punch clouds, and jets make 'em. The connection between hole-punch clouds, jets and snowfall, here. Read more.

Tonight … Waxing toward the full Hunter's Moon

Tonight's moon is also near the extremely faint planet Uranus on the sky's dome. Read more.

Astronomers spy 4 giant planets orbiting a young star

Finding 4 giant planets orbiting another star isn't too unusual these days. But these massive planets are the largest known to orbit such a young star - CI Tau - only 2 million years old. Read more.


Artist's concept of 4 giant planets orbiting the star CI Tau, via Amanda Smith/Institute of Astronomy.

EarthSky Lunar Calendars Are Back!


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Venus is going, going …

Steven Bellavia wrote: "October 21 crescent Venus - 5 days before the planet's inferior conjunction, when it will go between the Earth and sun - at 1.6 percent illumination. At inferior conjunction, on October 26, Venus will be 0.6 percent illuminated." Read more.

Tonight … Waxing toward the full Hunter's Moon

Path of the 2016 Hunter's Moon above Fall River, Massachusetts, by Jacob Baker. This is a 16-shot composite, made of photos taken at 10-minute intervals over 2 1/2 hours.  Read more.
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