Goodbye Moon! But Will The Green Comet Still Show?

Last week, several people asked about seeing “the comet.” They meant 45P/Honda-Mrkos-Pajdusakova — a mouthful, so the comet made sense. I’d written about 45P in an earlier blog when it was visible in the morning sky just before dawn and after moonset. But last Thursday, moonlight encroached on this fuzzy, spread-out object and pretty much blanked it…
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Journey To Jupiter In 1,000 Images — A Remarkable Video

Feel like getting the heck outta town? Enjoy a soothing and thought-provoking rendezvous with the planet Jupiter in this amazing video made from more than 1,000 images taken by 91 amateur astronomers around the world between December 19, 2014 and March 31, 2015. Some of the images you’ve probably seen in this blog, but only…
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Penumbral Charm / Moon’s Next Move / Jupiter’s Curly Top

Who knew shadows could be so cool? Especially one half-flooded with sunlight! Hopefully you got to see at least part of yesterday’s penumbral lunar eclipse. Seeing any full moon rise is a pleasure, but this one had the added benefit of Earth’s shadow. The shading was subtle at first but became increasingly obvious as the…
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White Dwarf Rips Into Big Brother Of Halley’s Comet

Like eggs and snowflakes, comets are fragile and subject to breaking. When one swings too close to the our central star, the sun’s combined gravity and searing heat can cause a comet to crumble to pieces. The pieces can further disintegrate into an ever-expanding cloud of gas, water vapor and dust and disperse along the comet’s orbit.…
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Get Set For Friday’s Penumbral Lunar Eclipse

Friday evening, the Full Snow Moon will look a little weird when it rises in the eastern sky at sundown. That’s because for much of the U.S., the moon will already be in eclipse. Our favorite and only natural satellite slides through Earth’s outer shadow or penumbra that evening. During a partial or total lunar eclipse, the full moon passes…
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