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THE ASTRONOMER Electronic Circular No 1290      1998 Apr 15 20.15UT
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
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SUPERNOVA 1998Y IN NGC 2415
W. Li, M. Modjaz, R. R. Treffers, and A. V. Filippenko,
University of California at Berkeley, report their discovery of a
supernova during the course of the Lick Observatory Supernova
Search with the 0.8-m Katzman Automatic Imaging Telescope. SN 1998Y
was found and confirmed on unfiltered CCD images obtained on
Mar. 16.2 (mag about 18.3) and 18.2 UT (mag about 18.4), and it is
located at R.A. = 7h36m56s.93, Decl. = +35o14'36".0 (2000), which
is about 7" east and 6" north of the nucleus of NGC 2415.
IAUC 6850 (extract)

SUPERNOVA 1998Z IN ANONYMOUS GALAXY
L. Germany and the Mount Stromlo Abell Cluster Supernova Search
Team reports the discovery of an apparent supernova (V = 19.6) on
V and R CCD images taken on Mar. 16 (limiting mag V = 20.5) by
S. Sabine at the Mount Stromlo 1.27-m telescope (+ Macho Camera).
SN 1998Z is located near Abell 3341 at:
R.A. = 5h24m58s.78, Decl. = -31o21'38".1 (2000), which is 1".5 west
and 2".3 south of the centre of the host galaxy.
IAUC 6850 (extract)

SUPERNOVA 1998aa IN ANONYMOUS GALAXY
J. Maza, Department of Astronomy, University of Chile, reports
the discovery by Roberto Antezana of a supernova (B about 18) on a
film (T-Max 400) taken by L. E. Gonzalez using the Maksutov
telescope at Cerro El Roble on Feb. 26.201 UT.  SN 1998aa is
located at R.A. = 12h25m32s.65, Decl. = +7o38'59".0 (2000.0), which
is 10".4 west and 0".8 south of the nucleus of a spiral galaxy.
IAUC 6850 (extract)

SUPERNOVA 1998ab IN NGC 4704
J.-y. Wei, on behalf of the Beijing Astronomical Observatory
supernova survey (via W.-d. Li, Berkeley), reports the discovery of
an apparent supernova (mag 16.1) on Apr. 1.67 UT.  SN 1998ab
is located at R.A. = 12h48m47s.24, Decl. = +41o55'28".3 (2000.0),
which is 2" east and 12" north of the centre of NGC 4704.
SN 1998ab is not visible on a CCD image taken on Mar. 14.
IAUC 6858 (extract)

SUPERNOVAE
P. Garnavich, Center for Astrophysics, reports that the High-Z
Supernova Search Team has discovered 11 supernovae on CCD images
taken with the Cerro Tololo 4-m telescope by N. Suntzeff,et.al.
SN        1998 UT       R.A.  (2000)  Decl.      I      z    type
1998ac    Feb. 27    9 31 20.00  - 5 16 24.3    23.7   0.46   Ia
1998ad    Mar. 25    9 29 55.71  - 5 21 59.3    23.4   0.44   II?
1998ae    Mar. 25    9 30 47.53  - 4 38 51.0    23.9   1.1     ?
1998af    Mar. 25    9 30 36.98  - 5 04 51.1    23.7   0.23   II
1998ag    Mar. 25   13 43 36.42  + 0 08 02.2    23.5   0.67   Ia
1998ah    Mar. 26    9 28 15.74  - 5 21 57.9    22.6   0.43   Ia
1998ai    Mar. 26   13 42 27.59  - 0 06 47.2    22.7   0.49   Ia
1998aj    Mar. 26    9 27 55.76  - 4 59 56.9    24.1   0.83   Ia
1998ak    Mar. 26   13 44 16.22  - 0 10 49.3    23.7   0.74   Ia?
1998al    Mar. 26   13 43 05.37  - 0 25 43.0    23.4   0.71   Ia
1998am    Mar. 26   13 41 21.38  - 0 32 33.8    23.8   0.24   II
IAUC 6861 (extract)

Guy M Hurst