AR2916 in calcium
Taken by Eduardo Schaberger Poupeau on December 29, 2021 @
Rafaela, Santa Fe, Argentina
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Details:
Today, Wednesday December 29, I photographed the great sunspot AR2916 again, but this time I did it at the calcium wavelength (CaK).
It is really a very interesting sunspot, since three large dark cores are clearly visible, chained by other much smaller ones, all distributed in the same line.
To take this picture I used a Sky Watcher Esprit 120 telescope, a Lunt B1800 calcium (CaK) module, and a ZWO 183MM camera.
Photographer's website:
https://www.eduardoschaberger.ar
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