Sunday, August 7, 2016
The Sun 8/6/2016
Solar activity is diminishing after a disappointing solar max. While white light images show just a couple of small sunspot groups (ARs 2571 and 2572), H-Alpha shows much more detail, including prominences, granularity, filaments and, in this case, minor flaring from AR 2571. I've also added an inverted image from May, 2013, as a comparison.
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The Horsehead Nebula with the Dwarf 3
Here's an image of the Horsehead Nebula captured under my Bortle 8/9 skies. There's 2.38 hours of total integration time, captured i...
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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 clouds melted away last night with a northerly breeze and a clear, transparent sky opened up. As it does not get dark until around 10... -
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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