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2013 October 07 Sun -summary

[複製連結]
發表於 2013-10-7 22:45:30 | 顯示全部樓層 |閱讀模式
AR11855 is is now close to the west limb, and not much activity is seen.

AR11856 and AR11857 continue to develop in the last 24 hours into large and very active regions.  AR11856 gives a spectacular eruption of flares starting around 11:50.

A small but very active group appears right on the SE limb.  Lots of eruptive prominences are associated with it.  Watch out for more in the coming days whenit turns to the front.

On the solar limb, the prominence on the E limb has changed a lot again since yesterday.  It is now like a huge "forest" and my 15 x 15 mm CCD sensor is just barely enough to get it all in one frame.
The jet-like prominence near the N limb has evolved into something very interesting.  It seems there is a void(like we are looking into a tunnel)that forces the plasma to circumvene it.

Many more appear along the W and SW limbs.

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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