AAVSO Alert Notice 591 announces a campaign on the cataclysmic variable GW Lib beginning at once in support of K2 and HST observations. Please see the notice for details and observing instructions.
Many thanks, and Good observing,
Elizabeth Waagen, AAVSO HQ
thanks for the great support of this HST campaign so far!
It's getting closer to the big day, and I've been in touch with STScI: they want that we communicate an update on GW Lib by
UT 13:00 on August 31st
and provide measurements taken within 24h of the COS observation, i.e. after
UT 20:33 on August 30th
Please upload any observation you make after that as soon as you can.
The HST team approved the second observation of GW Lib - thanks to your observations indicating quiescence - and it is taking place tonight. Dr. Gaensicke sends his sincere thanks!
Many thanks, and good observing,
This is a reminder that at least least one positive observation of GW Lib after UT Sep 12, 2017, 23:52, will be needed to get the final HST observation approved. Many thanks for your astronomical efforts!
Dr. Boris Gaensicke informs us that the HST team has approved the third and final HST/COS observation of GW Lib for tonight, thanks to your observations that confirm it is in quiescence. Many thanks for your efforts to obtain these essential last-minute observations!