Electronic Telegram No. 2104
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, India, report near-infrared
photometry of the eruptive young stellar object V1647 Ori, undertaken at
Mt. Abu Observatory's 1.2-m telescope (+ NICS with HAWAII-1 infrared array)
during Dec. 18.797-18.809 UT.  The object was reported to be in its strong
outburst phase from optical and near-infrared observations (IAUCs 8968,
8969; CBET 1596), after having recovered from the earlier outburst during
2004-2005 (IAUCs 8284, 8600, 8681, 8694).  The Mt. Abu observations were
made in the bands J, H, and K on a very clear and photometric night.  The
photometric magnitudes were J = 10.7, H = 8.9, and K = 7.5, with typical
errors of less than +/- 0.1 mag in each band.  These values are very close
to those at its brightest phase during its outburst reported in September
2008 (cf. optical observations on IAUC 9079).  The infrared images clearly
show the presence of McNeil's nebula around V1647 Ori.  Further monitoring
of the source will be done at Mt. Abu.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2009 CBAT
2009 December 30                 (CBET 2104)              Daniel W. E. Green