Category Archives: Sunspots

Active Region (AR) 2665 – July 16, 2017

False color image of active region (AR) 2665 from July 16, 2017 a quick view before it slips around to the other side of the sun.  

Tech Specs: Celestron C6-A SCT, black polymer filter sheet made by Thousand Oaks Optical, iOptron ZEQ25GT mount. Best 2500 frames of 5000 frames captured using an ZWO ASI290MC, AutoStakkert! V3.0.14 (x64), FireCapture v2.5.10 x64 and Registax v6. Photographed on July 16, 2017 (late afternoon) from Weatherly, Pennsylvania.

Check out this NASA video showing this active region rotating into view. https://www.nasa.gov/feature/goddard/2017/nasas-sdo-watches-a-sunspot-turn-toward-earth

…Tom

Sunspot Region AR 2665 Reprocessed

Reprocessed image of sunspot AR 2665 from July 9, 2017 showing a relative comparison to the size of the Earth.

Tech Specs: Celestron C6-A SCT, black polymer filter sheet made by Thousand Oaks Optical, iOptron ZEQ25GT mount. Best 2500 frames of 5000 frames captured using an ZWO ASI290MC, AutoStakkert! V3.0.14 (x64), FireCapture v2.5.10 x64 and Registax v6. Photographed on July 9, 2017 from Weatherly, Pennsylvania.

…Tom

Sunspot Region AR 2665 – July 9, 2017

A huge sunspot region named AR 2665 has been recently rotating into view. Here are two images showing a view of this area, the backdrop image gives you an idea of the size when compared to the disk of the sun. The inset image processed a bit harder to bring out details.

Tech Specs: Celestron C6-A SCT, black polymer filter sheet made by Thousand Oaks Optical, iOptron ZEQ25GT mount. Best 2500 frames of 5000 frames captured using an ZWO ASI290MC, AutoStakkert! V3.0.14 (x64), FireCapture v2.5.10 x64 and Registax v6. Photographed on July 9, 2017 from Weatherly, Pennsylvania.

…Tom

Huge Sunspot AR2529 Photographed on April 13, 2016

Here is a quick image of the huge sunspot AR2529 taken this afternoon, April 13, 2016 from Weatherly, Pennsylvania. Captured using my Celestron C6-A SCT, you can check out my solar setup and filter at http://www.leisurelyscientist.com/?p=581

AR2529

AR2529

This is a video capture using a Canon 6D and the software package Backyard EOS, 1500 frames were captured, and I stacking the best 750 frames using AS!2 (AutoStakkert!).

This sunspot is huge, by my estimation it is about five Earth’s wide!

Clear skies!

…Tom

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