File:XRT & AIA 304 Active Region Tracking -Hinode XRT-.webm

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Today's movie shows NOAA Active Region 11374 as it develops over about a day and a half from Dec 11-13. In the left panel we have images taken through XRT's thin beryllium filter, which is sensitive to coronal material with temperature in the neighborhood of 8 million Kelvin. The 304-Angstrom passband of AIA, sensitive to chromospheric material at around 50 thousand Kelvin, is shown in the right panel. (For reference, the surface of the Sun, or photosphere, is at a temperature of around 5800 K.) Because temperature increases with distance above the photosphere, here were are afforded a nearly simultaneous view of two different layers in the solar atmosphere, with the XRT images sampling material that sits around 10,000 km above the material shown by the AIA/304 channel.

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Hinode is a Japanese mission developed and launched by ISAS/JAXA, with NAOJ as domestic partner and NASA and STFC (UK) as international partners. It is operated by these agencies in co-operation with ESA and the NSC (Norway).



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current14:24, 23 June 201354 s, 854 × 428 (2.4 MB)YtUPt (talk | contribs)Imported from
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