Active Region AR 2553

Giuseppe Petricca
Location of photo
Sulmona, Abruzzo, Italy
Date/Time of photo
14/06/2016 - 06:45 UTC
SkyWatcher BlackDiamond Newton 200/1000 su EQ5 Motor - Barlow 3x COMA Apo/Apla - ASI 120 MM - Baader Continuum Filter - AstroSolar - 150 frames - AS!2 - Registax 6.1 - Photoshop CC
The big active region 2553 that seems like its going almost unnoticed despite its size, imaged this morning in excellent seeing conditions. The granulation of the star photosphere is easily noticeable, along the filaments that extend from the inner darker core region, with a particular one that almost cut through. The core is two Earths big as of today, and the whole penumbra region extends for about 4 times our planet!
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