Friday, September 8, 2017
The Sun 09/08/17
AR2673 is moving off the sun's disk, still crackling with potential X-Class flares. Folks in Northern Europe, Canada, and maybe the upper-tier US states might be in for a treat tonight as strong G-3 Class and severe G-4 Class geomagnetic storms are pummeling the Earth right now. Very bright displays have been reported in Scandinavia.
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The Tulip Nebula—Hubble Palette
This image is just over 3 hours of integration on the Tulip Nebula. The image was stacked with star processing, initial histogram stretch, a...
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I had a couple of emails asking how to defork an ETX telescope. The ETX 90 and ETX 125 were optically superb scopes, but the mounts left a... -
The ZEQ25 doing its stuff on a cold night--imaging the Orion Nebula with an 8 inch f/4 astrograph. Note the lovely Christmas rug :) As ... -
Like the Ring Nebula, the Dumbbell nebula is a planetary nebula marking the end of a star's life as it puffs off its outer layers into s...
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