Affiliation
American Association of Variable Star Observers (AAVSO)
Mon, 05/20/2019 - 21:23
AAVSO Alert Notice 667 announces an observing campaign on the cataclysmic variable V386 Ser in support of upcoming HST observations. Please see the notice for details and observing instructions.
Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ
Hi Observers,
Dr. Paula Szkody informs us that the exact time for the HST observation of V386 Ser has been scheduled for 2019 May 30 04:36-10:15 UT. This is the night of May 29/30 for US observers.
Thus, the critical night will be May 28/29 (Wednesday night) to get a measurement to HST so they can proceed to the observation. It will be essential to have positive observations from this night to satisfy the HST planners, so observers with suitable equipment are urged to obtain positive measurements of this faint star.
Please switch from nightly monitoring to intensive monitoring (several times per night) on May 26/27 and continue through June 1/2, then resume nightly monitoring through June 7/8.
AAVSO Alert Notice 667 has been updated with this information.
Many thanks, and Good observing,
Elizabeth
Thanks to all the wonderful observers who posted observations before and during our scheduled HST observations. Unfortunately, the aging telescope had jitter when it went to our source and could not find the guide stars to hold the pointing and so the observation had zero data. There was no way to foresee this and they have approved a repeat observation. We don't know yet when that will be but hopefully before September when we can't see it from the ground anymore. The optical data taken will be useful to search for optical periodicities and so is still a valuable addition. I hope that some of you will be willing to continue observing this object for when we make the second attempt and thanks again for all your efforts, very much appreciated!
Paula Szkody and the HST team on V386 Ser
Too bad, sorry to hear that!
Well, better luck next time, and this was fun anyway as this was testing the limits of what I can do with my equipment & site.
CS
HBE
Dr. Paula Szkody's HST observations of V386 Ser have been rescheduled. Please see AAVSO Alert Notice 669 for details and observing instructions.
Many thanks, and Good observing,
Elizabeth O. Waagen, AAVSO HQ
Dr. Paula Szkody informs us that the HST observations of V386 Ser scheduled for August 1-3 have been postponed. Please continue the nightly snapshots as requested in AAVSO Alert Notice 669. Hopefully the HST observations will take place in early August, but we will keep you informed!
Many thanks, and Good observing,
Elizabeth
AAVSO Alert Notice 675 gives the new approximate dates of the HST observations of V386 Ser that were postponed from August 1-3. Please see the Alert Notice for details and observing instructions.
Many thanks, and Good observing,
Elizabeth
Further to AAVSO Alert Notice 675, Dr. Szkody informs us that the HST observations of V386 Ser have been scheduled for 2019 Aug 15 22:04:49 UT - Aug 16 00:31:52 UT. The critical night is August 14 - please report your observations of V386 Ser as soon as possible after you make them so that HST can be notified in time to make the go-nogo decision.
Many thanks, and Good observing,
Elizabeth