checking IP Per before the season closes

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Robin Leadbeater
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checking IP Per before the season closes

Post by Robin Leadbeater »

I just noticed the reduction in H alpha emission in Be star IP Per reported by Umberto has not yet been confirmed
http://www.spectro-aras.com/forum/viewt ... =14&t=1057
so I thought I would check it tonight using the LHIRES 1200 before it is too late in the year. It looks like it is still in net emission but perhaps not as strong as in 2012 (a single 600sec exposure so far)

Robin
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IP_Per_live.png
LHIRES III #29 ATIK314 ALPY 600/200 ATIK428 Star Analyser 100/200 C11 EQ6
http://www.threehillsobservatory.co.uk
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