EarthSky News - Oct 22 - Earth's Asteroid Buddy

October 22 Earth's Asteroid Buddy by:

Astronomers confirm Earth has an asteroid buddy It's the best and most stable example to date of a near-Earth companion, or quasi-satellite. Tonight … Spot moon, Antares, Saturn after sunset Most people, worldwide, can spot Sunday evening's young moon after sundown, with Antares and Saturn nearby. Young moon, refracted by atmosphere Wonderful timelapse from Mike Cohea showing the October 20 young moon - only 1.3% illuminated - setting over Newport, Rhode Island, being refracted by Earth's atmosphere.  What is an astronomical unit?  Astronomers use astronomical units - or AU - to describe solar system distances. Definition of AU here. Also, mean distances in AU to prominent solar system objects.

2018 lunar calendars are FINALLY here! Get your calendars 25% OFF this week.

Spot moon, Antares, Saturn after sunset Miss 'em tonight? No worries. They'll be close the next few evenings.

Young moon, refracted by atmosphere Young moon refracted by the atmosphere as it nears the horizon - Friday evening - by Mike Cohea. See the video here. Submit your photo to EarthSky here!

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