搜索
查看: 479|回復: 0

2017 March 27 Sun

[複製鏈接]
發表於 2017-3-27 11:36:29 | 顯示全部樓層 |閱讀模式
A very active group, AR12644, appears on the east side, with strong flares and filaments.
Near the west side, a small region seems to become active with bright flare and filament.
AR12643 is crossing the meridian but has subsided a bit showing only plages.


Observation has to stop after just 30 minutes as clouds come from the south.


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.

20170327093537838.jpg
20170327094309007.jpg
20170327095807595.jpg
20170327095831456.jpg
AR12644-20170327102805459.jpg
AR12644-20170327102809202.jpg
prom-20170327095827257.jpg
您需要登錄後才可以回帖 登錄 | 申請討論區帳戶

本版積分規則

手機版|Archiver|香港天文學會  

GMT+8, 2018-11-18 16:29 , Processed in 0.025358 second(s), 36 queries .

Powered by Discuz! X3.4

© 2001-2013 Design S!|平潭

快速回復 返回頂部 返回列表