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IAUC 5080: 1990Y; 1990W; JUPITER; 1990c

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IAUC number 

                                                  Circular No. 5080
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 1990Y IN ANONYMOUS GALAXY
     J. Maza, Astronomy Department, University of Chile; and M.
Phillips and N. Suntzeff, Cerro Tololo Interamerican Observatory,
telex:  "M. Wischnjewsky has discovered a supernova at R.A. =
3h35m24s.2, Decl. = -33 12'21" (equinox 1950.0), which is 1".2
east and 5".2 south of the nucleus of an anonymous elliptical
galaxy.  The supernova (estimated B = 18) was found on a 15-min
103a-O plate taken through a GG385 filter by L. Wells and
Wischnjewsky with the Curtis Schmidt telescope on Aug. 22.36 UT.
Confirmation was made by S. Howell and P. Szkody, who obtained
BVR CCD images with the CTIO 0.9-m telescope on Aug. 29.40; their
preliminary magnitudes and colors from these data are V = 17.7,
B-V = +0.8, and V-R = +0.2.  Spectroscopic observations are urged."


SUPERNOVA 1990W IN NGC 6221
     Phillips and Suntzeff also report the following preliminary
photometry for SN 1990W measured from CCD images obtained by
J. Elias with the CTIO 0.9-m telescope:  Aug. 21.00 UT, V = 14.89,
B-V = +0.55; Aug. 22.11, V = 14.84, B-V = +0.60.  These data indicate
that the supernova is at blue maximum, but may still be slowly
increasing in brightness in V.


JUPITER
     J. Friedson, J. Caldwell, D. Griep, and G. Orton report:
"Five-micron images of Jupiter, taken at the NASA Infrared Telescope
Facility during Aug. 27.62-27.66 UT, show a faint, axisymmetric,
warm band at the location of the South Equatorial Belt.  Together
with the recent apprearance of visually dark material (cf. IAUC
5079), this may signal the beginning of a return of the SEB from
its anomalous bright and cool appearance of the last 13 months."


COMET LEVY (1990c)
     Total visual naked-eye magnitude estimates (cf. IAUC 5076):
Aug. 19.15 UT, 3.7 (J. Scotti, Tucson, AZ); 20.04, 3.5 (H. Mikuz,
Ljubljana, Yugoslavia); 23.83, 3.4 (A. Boattini, Botinaccio, Italy);
25.25, 3.5 (A. Hale, Las Cruces, NM); 26.08, 3.9 (D. D. Meisel,
Geneseo, NY); 27.96, 3.8 (J. Shanklin, Cambridge, England); 29.14,
3.7 (G. Kronk, Troy, IL).


1990 August 29                 (5080)             Daniel W. E. Green

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