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AAVSO Special Notice #108: Sequence available for V5579 Sgr AAVSO HOME > publications > special notice

AAVSO Special Notice #108

Sequence available for V5579 Sgr
May 8, 2008

N. N. Samus announced in IAUC 8940 that
Nova Sgr 2008 (IAUC 8937) has been assigned the
variable star name V5579 Sgr.  You should use the
name "V5579 Sgr" for all future submissions for
this nova.

I've added a faint BVRI sequence for V5579 Sgr
to VSP/VSD.  This sequence starts
around V=9.2 and ends around V=15.  Be careful
as this nova fades, as the field is *very*
crowded and you will find contaminating stars
around almost every sequence star and the target
nova itself.  While the new sequence is pretty
good below V=10.5, the couple of brighter stars
do not fit as well as I would like.  We have not
had much clear weather at Sonoita, and most of
the good nights since the nova eruption were when
the moon was near the field and no calibration could
be performed.  I would be interested in hearing the
results from any other calibration of the field.

This was a very fast nova, reaching V=6.6 at
peak and falling to V=9.6 after 10 days.
Further monitoring is requested, as we have
had very few fast novae in the past couple of
years, and it would be useful to see what happens
during the fade.

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