-------------------------------------------------------------------
THE ASTRONOMER Electronic Circular No 1660      2001 Jly 25 19.30UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK             GMH at AST.STAR.RL.AC.UK
WORLD WIDE WEB                    http://www.demon.co.uk/astronomer
-------------------------------------------------------------------
SUPERNOVA 2001dg IN CGCG 513-10 (Q2001/233)
Guy M. Hurst, Basingstoke, England, reports the discovery by Mark
Armstrong (Rolvenden, Kent) of a supernova (mag about 17.5) on an
unfiltered CCD image taken on July 22.023 UT in the course of the
U.K. Nova/Supernova Patrol.  SN 2001dg is located at R.A. =
22h10m13s.28, Decl. = +36o39'14".2 (equinox 2000.0), as determined
from a follow-up image obtained on July 23.024, when the new object
appeared at similar brightness; this is 19" west and 3" south of
the centre of CGCG 513-10.  No stellar object appears at this
location on Armstrong's image of the galaxy from 2000 Sept. 23
(limiting mag about 19.0).  R. Arbour (South Wonston, Hampshire)
confirmed the presence of the new object on an exposure taken on
July 22.908.
T. Matheson, S. Jha, P. Challis, and R. Kirshner, Harvard-
Smithsonian Center for Astrophysics, report that a spectrum of SN
2001dg, obtained by P. Berlind on July 24.40 UT with the Mt.
Hopkins 1.5-m telescope (+ FAST spectrograph), shows it to be a
type-II supernova near maximum light.  The spectrum exhibits a blue
continuum with P-Cyg lines of hydrogen.  Adopting the NASA/IPAC
Extragalactic Database recession velocity of 6143 km/s for the host
galaxy, the expansion velocity derived from the minimum of the
H-beta line is about 8600 km/s.
IAUC 7670

Editor: additionally Gordon Rogers also provided images obtained
on 2001 July 23 with the 0.40-m Schmidt-Cassegrain by way of
confirmation. The object is seen clearly superimposed on a
structural knot of the galaxy.
Congratulations to Mark on this further success.

SUPERNOVA 2001df IN MCG -04-51-5
P. Martin, M. Modjaz, and W. D. Li, University of California at
Berkeley, report the discovery by LOTOSS of an apparent supernova
(mag about 18.0) in unfiltered images taken with the Katzman
Automatic Imaging Telescope (KAIT) on June 25.4, July 11.4, and
July 18.4 UT.  An image taken on June 16.5 under poor
conditions also showed a hint of the new object.  SN 2001df is
located at R.A. = 21h39m18s.15, Decl. = -25o29'36".0 (2000), which
is 5".0 east and 3".4 north of the nucleus of MCG -04-51-5.
IAUC 7667

V2274 CYGNI = NOVA CYGNI 2001
N. N. Samus, Institute of Astronomy, Moscow, informs us that the
designation V2274 Cyg has been given to this nova.

Editor: This object is being seriously under-observed despite being
well placed. We welcome more observations and will be updating the
sequence shortly. In the meantime please ensure the full estimate
is submitted for possible later re-reduction.

SUPERNOVA 2001dh IN MCG -6-44-26
R. Chassagne, Ste. Clotilde, Ile de Reunion, reports the discovery
of an apparent supernova (mag about 15.5) on unfiltered CCD images
taken on July 22.88 and 24.85 UT with a 0.3-m reflector.
The new object is located at R.A. = 20h17m24s.16, Decl. =
-38o40'37".4 (2000), which is 38".7 east and 11".2 south of the
nucleus of MCG -6-44-26 (= ESO 340-G9).
IAUC 7670
Guy M Hurst