File:Eastern Limb on 2015 09 13 (21199272629).jpg

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A previously very active sunspot has reappeared around the Eastern limb - maybe it is still fizzy!

The sunspot shows the Wilson Effect - Its thought that the dark umbra is deeper in the photosphere than the penumbra so sunspots can look asymetric near the limb.

Equinox 120ED scope with Baader Herschel wedge and Skyris 274m CCD camera. Ioptron ZEQ25GT mount.
Date
Source Eastern Limb on 2015_09_13
Author john.purvis
Camera location55° 02′ 53.87″ N, 6° 55′ 43.18″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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This image was originally posted to Flickr by john.purvis at https://flickr.com/photos/16271433@N02/21199272629 (archive). It was reviewed on 25 September 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

25 September 2018

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current07:55, 25 September 2018Thumbnail for version as of 07:55, 25 September 2018671 × 1,253 (380 KB)PlanetUser (talk | contribs)Transferred from Flickr via #flickr2commons

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