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IAUC 5076: 1990W; 1990X; 1990c; 1990f

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IAUC number 

                                                  Circular No. 5076
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 or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


SUPERNOVA 1990W IN NGC 6221
     R. Evans, Hazelbrook, N.S.W., reports his visual discovery of
a supernova in NGC 6221 (R.A. = 16h48m.5, Decl. -59 08', equinox
1950.0); he estimated the supernova to be at mag about 15 on Aug.
16.4 (discovery observation) and 18.4 UT, with offsets from the
nearly stellar nucleus being 5" east, 3" north.  The supernova was
not noticed during Evans' previous observation of the galaxy on
Aug. 10.  E. Sadler, Anglo-Australian Observatory, communicates,
via R. H. McNaught:  "An Anglo-Australian Telescope spectrum
(range 470-550 nm) taken Aug. 18.4 UT indicates that this is
probably a type-I supernova, located in or near an H II region.  The
coordinates measured from the AAT are R.A. = 16h48m26s.8, Decl. =
-59 07'54" (equinox 1950.0) with magnitude V about 15."


SUPERNOVA 1990X IN UGC 12565
     C. Pollas, Observatoire de la Cote d'Azur, reports his
discovery on plates taken Aug. 17.12 and 18.12 UT of an apparent
supernova at mpg = 19 in the spiral galaxy UGC 12565 (mpg = 15.4).
The object is at R.A. = 23h20m15s.8, Decl. = +22 56'07" (equinox
1950.0); offsets from the galaxy's center are 12" west, 20" south.


COMET LEVY (1990c)
     J. J. Klavetter, University of Maryland, reports the following
preliminary broadband magnitudes of comet Levy taken on Aug. 11.5 UT
with the ProtoCAM at the NASA Infrared Telescope Facility:  H = 3.95
+/- 0.02, J = 3.54 +/- 0.03, K = 4.07 +/- 0.03, L = 4.80 +/- 0.10.
     Total visual magnitude estimates (cf. IAUC 5075):  Aug. 15.46
UT, 4.0 (D. Tholen, Mauna Kea, Hawaii, naked eye); 16.93, 4.0 (H.
Dahle, Oslo, Norway, naked eye); 17.24, 3.9 (C. S. Morris, near Mt.
Wilson, CA, naked eye); 18.24, 3.7 (Morris, Lockwood Valley, CA).


PERIODIC COMET HONDA-MRKOS-PAJDUSAKOVA (1990f)
     Total visual magnitude estimates (cf. IAUC 5072):  Aug. 16.90
UT, 9.4 (A. Pearce, Scarborough, W.A., 0.20-m reflector); 18.50, 8.1
(C. S. Morris, Pine Mountain Club, CA, 0.26-m reflector).


1990 August 18                 (5076)             Daniel W. E. Green

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