The solar surface is still dominated by the long filament in the northern hemisphere, and it has become longer.While a large patch of AR-like region near the SE limb shows lots of activities, the tiny AR12570 near the E limb is developing.
Telescope: AP Starfire EDT 155 mm f/9.
stopped to 50 mm for disc images, with 4X telecentric lens (f/36) for closeups
filter: Solar Spectrum SO1.5/0.3A with CERF prefilter
Camera: Imperx 4M15
North is up, and east to the left.
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發表於 2016-7-29 23:12:28