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Inizio > SOLAR SYSTEM > The Sun: just a star, like many others...
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The "Texture" of the Sun
Up close, the Solar Surface is a striking patch work of "granules" in this very High Resolution picture of the quiet Sun. Caused by convection, the granules are hot, rising columns of plasma edged by dark lanes of cooler, descending plasma. But the HR view reveals that the dark lanes are dotted with many small, contrasting bright points. Constantly present on the Solar Surface, the bright points do not seem to be related to Sunspots that come and go with the Magnetic Solar Cycle. 
Nonetheless, the bright points are regions of concentrated Magnetic Fields and are bright because the magnetic pressure opens a window to hotter deeper layers below the Photosphere. For scale, the white bar at the lower left corresponds to approx. 5000 Km across the Sun's Surface. 
The sharp, narrow-band image was recorded in September, 2007 using the Swedish Solar Telescope on the astronomical island of La Palma.
Parole chiave: From Earth Images - Swedish Solar Telescope

The "Texture" of the Sun

Up close, the Solar Surface is a striking patch work of "granules" in this very High Resolution picture of the quiet Sun. Caused by convection, the granules are hot, rising columns of plasma edged by dark lanes of cooler, descending plasma. But the HR view reveals that the dark lanes are dotted with many small, contrasting bright points. Constantly present on the Solar Surface, the bright points do not seem to be related to Sunspots that come and go with the Magnetic Solar Cycle.
Nonetheless, the bright points are regions of concentrated Magnetic Fields and are bright because the magnetic pressure opens a window to hotter deeper layers below the Photosphere. For scale, the white bar at the lower left corresponds to approx. 5000 Km across the Sun's Surface.
The sharp, narrow-band image was recorded in September, 2007 using the Swedish Solar Telescope on the astronomical island of La Palma.

The_Sun-SS-HST.jpg The_Sun-Spicules.jpg The_Sun-Texture.jpg The_Sun-XClass_Flare-SDO20110215_015332_2048_0193.jpg The_Sun.JPG
Informazioni sul file
Nome del file:The_Sun-Texture.jpg
Nome album:MareKromium / The Sun: just a star, like many others...
Valutazione (3 voti):55555(Mostra dettagli)
Parole chiave:From / Earth / Images / - / Swedish / Solar / Telescope
Copyright:J. Sanchez Almeida (IAC), et al.
Dimensione del file:641 KiB
Data di inserimento:Mag 05, 2010
Dimensioni:2016 x 2016 pixels
Visualizzato:57 volte
URL:https://www.lunexit.it/gallery/displayimage.php?pid=26719
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