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IAUC 5870: N Lup 1993; 1993Y; 1993Z

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IAUC number 

                                                  Circular No. 5870
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Telephone 617-495-7244/7440/7444 (for emergency use only)
TWX 710-320-6842 ASTROGRAM CAM     EASYLINK 62794505
MARSDEN@CFA or GREEN@CFA (.SPAN, .BITNET or .HARVARD.EDU)


NOVA LUPI 1993
     M. Della Valle, European Southern Observatory, reports:  "A
series of spectrograms (range 390-1000 nm, resolution 1-2 nm) of N
Lup 1993 were obtained on Sept. 23.96 UT with the New Technology
Telescope (+ EMMI) at La Silla.  The spectrum shows emission lines
of H, Fe II, Na I, O I, and N I, indicating that this nova has been
caught during its early decline.  The expansion velocity derived
from the FWHM of H-alpha is about 2700 km/s."


SUPERNOVA 1993Y IN UGC 2771
     J. Mueller reports her discovery of an apparent supernova of
mag about 17, located 9" east and 37".6 north of the nucleus of UGC
2771 (R.A. = 3h28m.1, Decl. = +39 35', equinox 1950.0).  The IIIa-J
discovery plate was taken by Mueller on Sept. 18 UT with the 1.2-m
Oschin Telescope in the course of the second Palomar Sky Survey.
     A spectrogram obtained on Sept. 22 UT by A. Dressler with the
5-m Hale Telescope (+ 4-shooter + spectrograph), analyzed by W.
Sargent, shows this to be a type-Ia supernova, 20-21 days past
maximum. A. V. Filippenko and T. Matheson, University of California
at Berkeley, also report that CCD spectra (range 310-1000 nm)
obtained on Sept. 25 with the Shane 3-m reflector at Lick Observatory
show that the supernova is of type Ia, but closer to 1 month past
maximum brightness.


SUPERNOVA 1993Z IN NGC 2775
     R. R. Treffers, A. V. Filippenko, B. Leibundgut, Y. Paik, and
L. F. M. Lee, University of California at Berkeley; and M. W.
Richmond, Princeton University, report their discovery of a
supernova in NGC 2775 (R.A. = 9h07m41s, Decl. = +7 14'.5, equinox
1950.0), about 15" west and 42" south of the galaxy's nucleus.  The
object (magnitude R = 13.9 +/- 0.3) was found on Sept. 23 UT during
the Leuschner Observatory Supernova Search, which uses an automated
0.76-m telescope equipped with the Lawrence Berkeley Laboratory CCD
camera.  Confirmation was obtained on Sept. 24 at about the same
brightness.  It could not be detected to a limiting magnitude of R
= 18.3 in images obtained on May 22.  Spectra (range 310-990 nm,
resolution 0.6 nm) obtained on Sept. 25 with the Shane 3-m reflector
at Lick Observatory reveal that the supernova is of type Ia,
about 4 weeks past maximum brightness.


1993 September 25              (5870)            Daniel W. E. Green

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