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IAUC 6122: 1994w; 1994aj; Poss. SN IN NGC 2782

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IAUC number

                                                  Circular No. 6122
Central Bureau for Astronomical Telegrams
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
Phone 617-495-7244/7440/7444     TWX 710-320-6842 ASTROGRAM CAM

     K. Birkle, Max Planck Institute for Astronomy, Heidelberg; H.
Bohnhardt, Astronomical Institute, University of Munich; and G.
Schwehm, ESTEC, Noordwijk, report their recovery of this comet with
the prime-focus CCD camera on the 3.5-m reflector at Calar Alto, as

     1994 UT             R.A. (2000) Decl.       m1
     Dec. 28.03183   10 29 24.2    +23 50 51     22
          29.07865   10 29 22.7    +23 57 07

There was no detectable coma.  The indicated correction to the
prediction on MPC 20123 is Delta T = +0.15 day.

     S. Benetti, European Southern Observatory (ESO), reports:  "A
fully-reduced CCD spectrum (range 450-700 nm, resolution 1.2 nm),
obtained on Dec. 31.22 UT with the ESO 2.2-m telescope (+ EFOSC2),
of SN 1994aj (cf. IAUC 6121) shows H-alpha and H-beta lines with a
complex shape superimposed on a relatively blue continuum.  The
Balmer lines consist of a broad compoment (FWHM about 7000 km/s) in
emission, superimposed by a second component having a narrow P-Cyg
profile (expansion velocity 1000 km/s and emission peaks measured
at 677.5 and 501.6 nm).  Other lines present in the spectrum, such
as Fe II and Na I D, seem to have normal P-Cyg profiles.  The
expansion velocity derived from the minimum of the Na I D lines,
corrected by the recession velocity of 9600 km/s of the parent
galaxy (measured from a faint H-alpha emission present in the
galaxy spectrum) is about 3500 km/s.  Spectroscopic and photometric
observations are greatly needed to follow the evolution of this
unique type-II supernova."

     S. Nakano, Sumoto, Japan, reports the discovery of a possible
supernova (mag 16.3) by Reiki Kushida at Yatsugatake South Base
Observatory.  Found on an unfiltered CCD image taken on Dec. 24.856
UT, the candidate's position is R.A. = 9h10m50s.13, Decl. =
+40o18'47".1 (equinox 1950.0; measured by Y. Kushida), which is 50"
west and 30" south of the center of NGC 2782.  Additional CCD
magnitudes:  Dec. 17, [16.4; 27.762, 16.1.  A star of mag 16.7 is
located 60" west and 35" north of the galaxy's center.

1994 December 31               (6122)            Daniel W. E. Green

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