Observtion of 24-25 /07 / 2012 maximum by using a Lhires 3 600 l/mm tuned
for H&K CaII spectral region and a C11 telescope:
See dynamic animation here (movies of spectacular spectral type change):
http://www.astrosurf.com/buil/rrlyr2/rrlyr_campaign.htm
More about ultraviolet observations:
http://www.astrosurf.com/buil/spectral_ ... /atlas.htm
Christian B
25/07/2012 maximum UV observation
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