Central Bureau for Astronomical Telegrams
IAUC 5923: 1994A; 1994B; GRO J0422+32
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Circular No. 5923
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)
SUPERNOVA 1994A IN UGC 8214
J. Mueller reports her discovery of a supernova of red mag
about 18 located just to the north of a spiral arm in UGC 8214 (R.A.
= 13h05m.7, Decl. = +62o29', equinox 1950.0). SN 1994A, which was
found on a plate taken by Mueller on Jan. 11 UT with the 1.2-m
Oschin Telescope in the course of the second Palomar Sky Survey, is
situated 3" east and 10".1 south of the galaxy nucleus. N. Reid
notes that a red Survey plate taken on 1987 May 23 by J. Phinney
and himself shows no object at the position of SN 1994A. A. V.
Filippenko and T. Matheson, University of California at Berkeley,
report that a CCD spectrogram (range 310-1000 nm) obtained on Jan.
19 with the 3-m Shane reflector at Lick Observatory shows that the
supernova is of type II; broad H-alpha emission is visible, but the
corresponding absorption component is weak or absent.
SUPERNOVA 1994B IN ANONYMOUS GALAXY
C. Pollas, Observatoire de la Cote d'Azur, reports his discovery
of a supernova (V = 19.0) located at R.A. = 8h17m51s.64, Decl.
= +15o53'20".5 (equinox 1950.0), which is 4".2 east and 3".9 north
of the center of the face-on spiral host galaxy (V = 17.5). SN
1994B was found on films taken on Jan. 16.98 and 17.94 UT with the
OCA 0.9-m Schmidt telescope. A nearby star (V = 17.5) has end
figures 52s.85, 54'28".7. Filippenko and Matheson report that an
uncalibrated CCD spectrogram, obtained as above on Jan. 19 UT, suggests
that SN 1994B is a type-Ia supernova, near maximum brightness.
A broad Si II absorption trough is visible. The object is
superposed on an H II region, from which an approximate redshift of
0.089 was derived for the parent galaxy. Photometry is encouraged.
GRO J0422+32
P. Zhao, P. Callanan, M. Garcia, and J. McClintock, Smithsonian
Astrophysical Observatory, report additional photometry (cf.
IAUC 5907): 1993 Dec. 16.09 UT, R = 14.89, V = 15.18; 23.30,
15.45, -; 1994 Jan. 4.15, 18.03, 18.76; 4.40, 18.19, -; 5.09,
18.76, -; 5.41, 19.13, -; 6.17, 18.88, 19.52; 6.35, 18.59, 19.00;
7.26, 17.77, 18.10; 8.31, 17.31, 17.68; 9.20, 17.00, 17.39; 10.29,
17.12, -; 11.29, 17.25, -; 12.29, 17.53, -; 13.29, 18.02, -; 14.16,
18.40, 19.11; 16.17, 17.97, 18.32; 17.13, 17.89, 18.40. During the
past month, maxima have occurred on Dec. 10 and Jan. 9 and 16, with
minima on Jan. 5 and 14; each cycle is shorter and has a smaller
amplitude.
1994 January 19 (5923) Daniel W. E. Green
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