Solar pores
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Pores, bright points and granulation in AR 12709 (2/3)
GREGOR
Active region 12709 was observed on 11 May 2018 with the High-Resolution Fast Imager (HiFI) at the German 1.5-meter GREGOR telescope (Observatorio del Teide, Tenerife, Spain). A wideband blue-continuum 450.5 nm (FWHM 1.2 nm) interference filter was used. The image was speckle reconstructed from a burst of 100 frames taken within 20 seconds. In order to freeze the seeing, each image was exposed for 10 milliseconds. During the measurements, the GREGOR adaptive optics system was locked on the pore to partially correct for atmospheric seeing effects.
The image shows a central dark pore surrounded by granulation. In between some of the granules, in the intergranular lanes, so-called bright points appear.
Image credit: Christoph Kuckein (AIP), Horst Balthasar (AIP), Sergio J. González Manrique (AISAS)