EarthSky News - Sept 25 - Strange, Comet-Like Double Asteroid

September 25 Strange, Comet-Like Double Asteroid by:

Astronomers find strange, comet-like double asteroid Comets are loose collections of ice and dust, sometimes with long tails. Asteroids are more rocky or metallic. Now astronomers have found a comet-like double asteroid. This week … Moon swings by Antares and Saturn The waxing crescent moon to swing to the north of the star Antares, then to the north of the planet Saturn. Aging star blows off smoky bubble    A strikingly beautiful view of a delicate bubble of expelled material around the exotic red star U Antliae. What is a fogbow? Fogbows are rainbows' cousins – made in much the same process – but with the small water droplets inside a fog instead of larger raindrops.

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Moon swings by Antares and Saturn Bright stars like Antares twinkle, while planets like Saturn tend to shine with a steadier light. Scrutinize Antares and Saturn over these next few evenings - or when the moon moves away - to see if one twinkles more than the other.

What is a fogbow? Wonderful fogbow caught by Robyn Smith in New Zealand on the morning of September 19 ... "opposite the foggy sunrise." Submit your photo to EarthSky here!

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