(cba:news) SDSS080434.20+510349.2 is 4.5 mag brighter (fwd)
jop at astro.columbia.edu
Sun Mar 5 10:38:30 EST 2006
Dear (northern) CBAers,
I just received this from Elena Pavlenko. It sounds mighty interesting,
and is mighty current!
Have a shot at it!
---------- Forwarded message ----------
Date: Sun, 5 Mar 2006 15:05:41 +0200
From: Elena Pavlenko <pavlenko at crao.crimea.ua>
To: Joe Patterson <jop at astro.columbia.edu>
Subject: SDSS080434.20+510349.2 is 4.5 mag brighter
Last night (March 04/05), starting BVRI
photometry with 2.6-m Shain telescope of the
Crimean astroph. obs. at ~19h UT,
I found CV SDSS 080434.20+510349.2 at 4.5 mag
brighter than before. Accordingly to P. Szkody,
this object was 17.9 - 18.3, its spectroscopical
period 1.42 hrs is twice the photometrical one
(42.5 min). During ~0.2-d time interval this
object could display fast 0.5-mag brightening,
the 42.5-min oscillations increase their amplitude
from 0.05 mag to 0.2 mag! At another time
this star could show no brightness oscillations.
No brightenings/outbursts were known so far
for this object. During this bright state
over ~4 h duration the star displayed both oscillations
and quiet state, and mean brightness remained stable.
As long as it is 14th mag star, it is accessible
for the amathor observation!
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