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2013 Aug 26 Sun -summary

[複製連結]
發表於 2013-8-26 23:26:24 | 顯示全部樓層 |閱讀模式
In white light, the solar disc is dominated by a large sunspot near the SE limb.  To the east of this sunspot of AR11835 is an elongated region of flares which, tpgether with several filaments, form an arc around the sunspot.
To the north, AR11834 is another elongated region of flares surrounded by a huge and thick filament.
Near the disc centre, AR11828 has just crossed the meridian.  This AR is extensive with flares and filaments.
AR11823 and AR11827 are close to the SE limb and look active with flares and filaments.

The prominences on the limb are vary active.  The huge one on the E limb seems to be connected to the huge filament inside the limb, and is eruptive fairly violently.  
The jet-like prominence on the W limb is also erupting, and changes can be seen in the short duration while whole-disc images are captured.
Even the faint ones on N and S limb are eruptive.

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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