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NASA SDO - Transit of Venus, 131 Angstrom

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Published on Jun 5, 2012

AIA 131: This channel (as well as AIA 131) is designed to study solar flares. It measures extremely hot temperatures around 10 million K (18 million ˚F), as well as cool plasmas around 400,000 K (720,000˚ F). It can take images every 2 seconds (instead of 10) in a reduced field of view in order to look at flares in more detail.

Where: Flaring regions of the corona
Wavelength: 131 angstroms (0.0000000131 m) = Extreme Ultraviolet
Primary ions seen: 20 and 7 times ionized iron (Fe VIII, Fe XXI)
Characteristic temperatures: 10 million K (18 million ˚F),

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