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IAUC 4850: 1989P; KS 1947+300; V745 Sco; CY UMa

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IAUC number 

                                                Circular No. 4850
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 1989P IN NGC 6636
     R. Kirshner, C. Smith, and N. Levenson, Center for Astrophysics,
report that a spectrum of SN 1989P obtained Sept. 7.25 UT at the
Multiple Mirror Telescope using the Red Channel spectrograph (range
420-840 nm) shows all the lines characteristic of a type-Ia
supernova about 1 month past maximum.  The supernova is 48".0 west
and 11".7 south of a convenient star.  The supernova position is
R.A. = 18h22m01s.6, Decl. = +66 34'36".2 (equinox 1950.0; +/- 1").


KS 1947+300
     G. K. Skinner, University of Birmingham, on behalf of the
TTM/Kvant Team (Space Research Institute, USSR Academy of
Sciences; University of Birmingham; Space Research Laboratory,
Utrecht), writes:  "A transient x-ray source, KS 1947+300, has
been observed in data obtained with the TTM Coded Mask Imaging
Spectrometer on Mir during the period June 8-15.  The source
position is R.A. = 19h47m35s.2, Decl. = +30 04'47" (equinox 1950.0),
with an error circle radius of 30".  A thermal bremsstrahlung fit
to the spectrum gives a temperature of 9 keV with strong, low-energy
absorption, consistent with obscuration by dust clouds apparent on
survey plates in this direction.  The mean 2- to 10-keV flux over
the period of the observations was 50 mJy."


V745 SCORPII
     W. Liller, Vina del Mar, Chile, provides the following
additional magnitudes (cf. IAUC 4826) from 2415 films:  Aug. 6.00
UT, 11.4; 8.02, 11.6; 17.11, 13.1; 21.01, 13.6:.


CY URSAE MAJORIS
     D. Bohme, Nessa, E. Germany, reports that six eruptions of
this SU UMa-type variable have been found on Sonneberg sky
patrol plates, and he provides the following photographic magnitude
estimates:  1962 June 8, 13.1; 1964 Nov. 9, 13.2; 1968 Mar. 26,
13.8; 1973 Feb. 3, 14.3; 1976 Mar. 1, 12.8; 1984 Mar. 23, 13.0.


1989 September 7               (4850)             Daniel W. E. Green

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