IMAGEN ASTRONÓMICA DEL DÍA
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Monster Dark Spot Shows Up on the Sun Disc
In the last days this sunspot group came greater than the largest one of the previous solar cycle (that was on Oct. 30th, 2003), hence becoming the largest of such features to show up on the Sun disc in several decades.
This time also the sunspot can be seen with naked eyes, of course using a proper filter or specialized eclipse glasses. The group will remain visible until Oct. 28th. only, then disappearing through the Sun border but, as it keeps growing, it might be visible again by mid november, after completing the rotation of the Sun ! Photo: Cristian Valenzuela / Observatorio del Pangue - October 21st, 2014
Camera: Xperia J phone at prime focus of Orion 80mm refractor with white light filter