[vsnet-alert 15167] Re: Next HST observations: SDSS0755+1435 & HS0218+3229

[Boris Gaensicke]

Dear All,

we are about to enter the last 48h before the next HST observations...

It would be great to get a few more observations of  SDSS0755+1435,
as the last few days show almost 2mag of scatter,

http://www.aavso.org/lcg/plot?auid=000-BJQ-821&lastdays=50&obstotals=yes&calendar=calendar&grid=on&visual=on&uband=on&bband=on&v=on&pointsize=1&width=800&height=450

which made STScI nervous. This is a system near the minimum
period, where the WD dominates,

http://skyserver.sdss3.org/dr9/en/tools/explore/obj.asp?ra=07:55:07.70&dec=+14:35:47.6

and I have to admit that I would not expect such large-amplitude
scatter/flickering, so it's worth investigating this a bit more.

Thanks & clear skies,

Boris

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