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spiff:

immagine ad alta risoluzione della superficie del Sole: si notano molte delle tipiche strutture della cromosfera, come macchie, filamenti ecc. In basso a destra un brillamento (flare)

unknownskywalker:

High-resolution images of the solar atmosphere

The following image is a mosaics obtained on 03 August 2010 at the National Solar Observatory/Dunn Solar Telescope, featuring a broad range of typical chromospheric structures, including sunspots, superpenumbra, plage, filaments, and quiet internetwork. A small flare is also visible to the right of the sunspot. Both Calcium and Hydrogen lines show the same structures, but with different sensitivies to temperature, density, and dynamics.

High-Res Image: 2442×2484 px (2.48 MB)

• Source: view the other images at the IBIS Gallery • See also: Bad Astronomy