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THE ASTRONOMER Electronic Circular No 832 1994 Apr 24 19.29UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074
INTERNET: GMH at AST.STAR.RL.AC.UK or GMH at GXVG.AST.CAM.AC.UK
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SUPERNOVA 1994K IN ANONYMOUS GALAXY
J. Mueller reports her discovery of a supernova of red mag about
17.5 on a plate taken with the 1.2-m Oschin Schmidt Telescope
by D. Griffith and J. D. Mendenhall on Apr. 1 in the course of the
second Palomar Sky Survey. The supernova is located at R.A. =
9h57m43s.09, Decl. = +13o06'57".3 (equinox 1950.0), which is 22"
west and 15" north of the galaxy's nucleus.
B. Schmidt and R. Kirshner, Harvard-Smithsonian Center for
Astrophysics (CfA), report that a spectrum (320-850 nm) taken by J.
Huchra (CfA), C. Heller (University of Kentucky), and S. Muscarella
(CfA) with the Multiple Mirror Telescope (+ Blue Channel) shows
this object to be of type Ia, about 6 weeks past maximum light.
The redshift of the host galaxy, derived from its absorption lines,
yields a velocity of recession of 7000 km/s.
IAUC 5972
SUPERNOVA 1994L IN NGC 2848
On Apr. 13, Nicholas J. Brown, Clarkson, Western Australia,
reported an apparent supernova in NGC 2848:
(R.A. = 9h17m.9, Decl. = -16o19', equinox 1950.0)
that he had discovered visually on Apr. 8.7 UT at mv = 14.7; he
stated that the object was located about 30" southwest of the
galaxy's center. In response to requests for confirmation by the
Central Bureau, L. Pasquini, European Southern Observatory; and
M. Osterloh, Max-Planck-Institut fur Astronomie, Heidelberg,
report: "On Apr. 13.99 UT, we obtained a low-resolution
spectrogram (range 370-800 nm, resolution 2 nm) of the supernova
candidate in NGC 2848 using the 2.2-m MPI/ESO telescope (+ EFOSC
II). The spectrum shows broad Balmer lines with prominent P-Cyg
profiles overimposed on a blue continuum. Adopting a redshift
velocity of 1795 km/s for the host galaxy, absorption minima are
measured at 635, 473, 421, and 382 nm. Additional strong emission
lines are also detected at 459 and 496 nm. The object thus appears
to be a type-II supernova a few weeks after maximum light."
IAUC 5975
SUPERNOVA 1994I IN NGC 5194
P. Wild, Astronomical Institute, Berne, reports that a photograph
on T-Max film taken Mar. 30.916 UT at Zimmerwald (limiting
magnitude near V = 16.0) tentatively suggests that the supernova
was not visible, although the bright galaxy background makes it
difficult to draw a definite conclusion.
IAUC 5973
NOVA CASSIOPEIAE 1993
Brian Manning, Stakenbridge, UK reports the following CCD results
obtained with the 0.26-m reflector:
1994 March 26.84285 mag referred to star 18 = 15.98
29.84863 16.08
April 01.82749 15.96
02.83359 16.21
02.84534 16.11 IR filter
April 05.84605 15.69
05.85164 15.76
10.83586 15.00
10.84391 14.99
April 10.84749 15.15 IR filter
13.843 14.81
13.852 14.85 IR filter
14.846 14.65
Guy M Hurst
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Date: Mon, 25 Apr 94 19:38:37 BST