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| Date & Time: | Oct 25 2014, Times are displayed in image | 
| Optical: | CORONADO SolarMax 40, with 1.5× conversion lens (f=600mm, F15.0) | 
| Auto-guided with Kenko SKYMEMO Equatorial | |
| Camera: | CELESTRON Skyris445C with IDAS IR-cut filter | 
| Location: | Ooizumi, Hokuto city, Yamanashi pref. | 
| Camera Settings: | 15 flames/sec.×8sec., Exp....1/60sec | 
| 110 flames stacked each & Wavelet process with Registax6 | 
| The large-scaled active region of #2192 in Oct 2014 had several solar explosions, the flare. 
This set of images shows you the appearance of a largest-scale (X-class) flare and its change chased through the Hα light. 
You can see the flare as over-exposed region between two principal sunspots in an image at 8:33, and the light is reducing with time course. 
And the images show several thin stripes between the sunspots, it's called "the post-flare-loops", the prominences with its shapes change in short time. |  Full-disk image with Hα light (Oct 25) | 
| Warning: 
When using a telescope for observing or photographing the sun, lacking knowledge of proper solar filtering methods can pose risks of visual impairment or blindness. I do not assume any responsibility for any accidents that may occur as a result of observing or photographing the sun through this site. | 
|  Sunspot Group #2192 in Oct 2014: White-light images for 4days |  SunspotGroup #2192 in Oct 2014: Change of shape with White & Hα light | 
|  |  | Copyright(c) 2014 by Naoyuki Kurita, All rights reserved. | 
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