找回密碼
 申請討論區帳戶
查看: 3182|回復: 0

2014 Nov 16 - AR12209 moves inwards

  [複製鏈接]
發表於 2014-11-30 17:44:10 | 顯示全部樓層 |閱讀模式
As AR12192 moves inwards, it continues to develop and produces many flares.
It can be seen with the protected naked eye.
The "white light" images are actually taken with the H-alpha filters, but cooled to ambient temperature instead of the normal working temperature at 59C.

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.
20141116093842446.jpg
20141116094912204.jpg
20141116094915392.jpg
20141116094922270.jpg
20141116112502749.jpg
20141116112522994.jpg
20141116113646692.jpg
20141116113650079.jpg
20141116113657482.jpg
20141116113657902.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

Archiver|手機版|小黑屋|香港天文學會

GMT+8, 2024-5-7 08:55 , Processed in 0.019340 second(s), 22 queries .

Powered by Discuz! X3.5

© 2001-2024 Discuz! Team.

快速回復 返回頂部 返回列表