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IAUC 4838: N Sco 1989; 1989L; 1989M; OS And; S Aps

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IAUC number 

                                                  Circular No. 4838
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


NOVA SCORPII 1989
     H. W. Duerbeck and T. Augusteijn, European Southern Observatory,
report: "Spectra (resolving power about 1500) of Nova Sco 1989 were
obtained on Aug. 19.0 UT at the ESO 1.5-m telescope and 3.5-m New
Technology Telescope.  They indicate an early post-maximum stage, with
H, He I, N I, N II, O I, Na I, Ca II and numerous Fe II lines in
emission (FWHM 1400 km/s).  Na I D, O I 777.2 nm and the higher Balmer
series also show blueshifted absorption lines (velocity -1250 km/s).
Spectra taken on Aug. 20.0 show no noticeable changes.  The rapid
spectral development since flareup and the radial velocities are
typical for a fast nova.  The position, relative to Perth 70 SRS 14500,
as determined from the 3.5-m NTT encoders, is R.A. = 17h48m33s.8, Decl.
= -32d31'18" (equinox 1950.0)."
     R. H. McNaught, Siding Spring Observatory, communicates
prediscovery (on a V745 Sco exposure) and current magnitude estimates
obtained with the Uppsala Southern Schmidt: Aug. 10.38 UT, 14:, 20.6,
11.0:.  He adds that Survey films show nothing in this position to mag
19 or fainter.


SUPERNOVA 1989L IN NGC 7339
     Visual magnitude estimates: July 10.8 UT, 16.5: (T. Martinez,
Cleveland, MO; correction to IAUC 4820); 29.21, 16.8 (R. Bunge,
Mansfield, OH); Aug. 2.21, 16.8 (Bunge).


SUPERNOVA 1989M IN NGC 4579
     Visual magnitude estimates by Bunge: July 29.12 UT, 12.8; Aug. 2.10,
13.2; 8.09, 14.1.


OS ANDROMEDAE
     Visual magnitude estimates: 1988 Dec. 8.84 UT, 15.5 (A. Boattini,
Piazzano, Italy); 1989 Jan. 2.77, 15.4 (Boattini); 26.77, 15.4 (M.
Verdenet, Bourbon-Lancy, France); July 30.99, [15.1 (Boattini).


S APODIS
     Visual magnitude estimates by P. Williams, Heathcote, N.S.W.: May
10.38 UT, 10.6; 22.50, 11.0; 24.41, 11.4; 31.43, 12.3; June 6.45, 13.0.


1989 August 20                 (4838)              Brian G. Marsden

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