Circular No. 7699
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Mailstop 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
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CBAT@CFA.HARVARD.EDU (science)
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SUPERNOVA 2001do IN UGC 11459
     R. Chornock, M. Modjaz, and A. V. Filippenko, University of
California at Berkeley (UCB), report that inspection of CCD spectra
(range 330-1000 nm), obtained on Aug. 23 UT with the Shane 3-m
reflector at Lick Observatory, reveals that SN 2001do (IAUC 7682)
is an unusual supernova of type II.  The spectrum exhibits low-
contrast absorption and emission features of H, Fe, and Na
superimposed on a smooth continuum with a color temperature of
about 5800 K.


SUPERNOVAE 2001dk, 2001dq, 2001ds
     Chornock et al. report that inspection of CCD spectra,
obtained as above, reveals that SN 2001dk (IAUC 7675, 7676) is a
normal type II-P supernova, a few weeks past maximum light.  Well-
developed P-Cyg lines of H, Fe, Sc, and Ca are present.  The
expansion velocity measured from the H-alpha absorption is 9000
km/s.  Additional spectra show that SN 2001ds (IAUC 7684) and SN
2001dq (IAUC 7683) are supernovae, probably of type Ia (about 3
weeks past maximum brightness) and type Ic, respectively.


V1178 SCORPII
     D. K. Lynch and R. J. Rudy, The Aerospace Corporation; and
J. C. Wilson, Cornell University, report 0.8-2.5-micron
spectrophotometry of V1178 Sco (= N Sco 2001) using the Palomar
1.5-m telescope (+ CorMASS near-infrared spectrograph) on July
30.16 UT, about 40 days after peak brightness (June 20):  "The
object has formed large amounts of dust in the 19 days between
observations (see IAUC 7679).  It has faded by over 4 magnitudes in
the J band (1.25 microns), and its spectrum shows evidence of both
heavy reddening and significant thermal emission beyond 2 microns.
Based on our spectra and the light curve, it appears as though dust
formation may have begun around July 10, about 3 weeks after peak
brightness.  Magnitudes derived from the spectrophotometry:  July
11, J = 9.2, H [1.65 microns] = 8.11, K(short) [2.16 microns] =
6.8; July 30, 13.3, 10.6, 8.4."


SUPERNOVA 2001dz IN UGC 471
     Corrigendum.  On IAUC 7696, lines 6-7, the offset should read
13" east and 7" south of the center of UGC 471.

                      (C) Copyright 2001 CBAT
2001 August 29                 (7699)            Daniel W. E. Green