PTS 發表於 2015-8-28 13:35:05

2015 August 28 Sun - AR12403 eruption

AR12403 is very close to the SW limb now.
During a short observation session this morning, eruption of bright flares show up from the eastern side of the leading spot.
Observation is frequently interruped by clouds.

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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