[Aavso-photometry] Var Her 04 Update: yet another field variable?
Aaron Price
aaronp at onceler.org
Thu Jul 8 18:43:33 EDT 2004
Var Her 04 seems to have settled down a bit. However, its future behavior
is unknown. It is still 1-2 magnitudes brighter than its magnitude on the
archived DSS places (presumed to be quiescence) so it likely has at least
a little more fading to do. Will it be gradual, sudden or will something
else happen?
Please continue to observe it at least once every clear night. If you are
going to make only a few observations then please use a V filter so that
we can combine your observations with others. Unfiltered photometry should
be limited to your time series runs. If you have time and interest,
continued time series runs of at least 3 hours are still appreciated.
Updates may no longer be daily but will be forthcoming when circumstances
warrant.
Yet another possible new field variable... observations needed!
Dale Mais (MVD) has reported a bright field star (GSC 2111 0489, ~12-13 v
mag, Tycho-2 B-V =~1.2) with ~0.2 mag amplitude variations yielding a
period of around 15.8 minutes discovered in data taken from 2453182.703 -
2453182.821. If you have photometry of Var Her 04 with high time
resolution (say 2 minute exposures or less) then please reduce and submit
photometry on this to the AAVSO as "9999+99 VAR HER N". Dave's light curve
can be seen in the light curve generator as "Var Her N". I have put up an
annotated image of the star on our f-scale chart field here:
http://www.aavso.org/news/varhern.gif
Aaron
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