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2014 Feb 14 Sun - active regions

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發表於 2014-2-15 09:13:39 | 顯示全部樓層 |閱讀模式
The solar disc is full of sunspots, all except AR11973, AR11978 and AR11979 are in the southern hemisphere.
As typical of sunspots on the decline slope of the solar cycle, these active regions are all at low latitudes, and in fact, close to the equator.
Lots of flares are observed in all these groups.
There are also many prominences on the SEE and SWW solar limb.


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   

PTS
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