Electronic Telegram No. 1596
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


V1647 ORIONIS
     V. Venkat and B. G. Anandarao, Astronomy and Astrophysics Division,
Physical Research Laboratory, Ahmedabad, report near-infrared photometry
done at Mt. Abu Observatory's 1.2-m telescope (+ NICMOS infrared array)
during Nov. 21.848-21.883 UT on the eruptive young stellar object V1647 Ori.
The object was very recently reported to be in its strong outburst phase
from optical observations (IAUCs 8968, 8969) after having recovered from
the earlier outburst during 2004-2005 (Acosta-Pulido et al. 2007, A.J. 133,
2020, and references therein).  These recent observations, made on a very
clear and photometric night, confirm the outburst phase, showing magnitudes
in J = 10.8, H = 8.9, and K' = 7.7, with typical errors of less than +/- 0.1
mag in each band; these values are very close to those at its brightest
phase during the 2004-2005 outburst and are much brighter than those in the
quiescent phase.  The corresponding current infrared images clearly show the
presence of McNeil's nebula around V1647 Ori.  Follow-up observations are
planned.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2008 CBAT
2008 December 1                  (CBET 1596)              Daniel W. E. Green