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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20 Hours of WR 134 with the Seestar S50
This image is a 20+ hour integration on WR 134, which is a highly energetic Wolf-Rayet star. The blue shockwave is oxygen ionized by the int...
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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... -
M17, the Omega Nebula (among other names). M17 is one of the brightest and most massive stellar nurseries in the galaxy. The open cluster o... -
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 ...
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