Sunday, November 26, 2017

EarthSky News - Nov 26 - Our Nights are Brighter, and Brighter

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Our nights are brighter, and brighter
The International Dark-Sky Association has campaigned for decades to reduce artificial light at night. Yet a new study shows our night skies still brightening at a rate of 2 percent each year.
Do you know Messier 33?
Say hello to the much-photographed Triangulum galaxy - aka Messier 33 - a face-on pinwheel of swarming suns and the second-nearest spiral galaxy to our Milky Way.
Star of the week: Hamal
Hamal is the brightest star in Aries the Ram. How to find it in your sky.
Tonight and tomorrow … Moon sweeps past Neptune
You won't see Neptune in the moon's glare tonight, even with optical aid and a sky chart. Still, tonight’s moon can point the way for later this month.
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Moon sweeps past Neptune
The star Lambda Aquarii is your guide star to Neptune, once the moon has gone. Neptune demands high-quality binoculars or a telescope, patience and a detailed star chart.
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Birdseye view of iceberg A-68A
Giant iceberg A-68A calved from Antarctica's Larsen C ice shelf. This photo, taken from a NASA aircraft on November 11, shows part of the iceberg’s edge and open water.
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