PTS 發表於 2015-5-26 13:44:00

2015 May 25 Sun

Huge filaments dominate the solar surface this week.

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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