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IAUC 4777: 1989J; SV Sge; 27 CMa; PKS 0735+178

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IAUC number

                                                  Circular No. 4777
Central Bureau for Astronomical Telegrams
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

     C. Pollas, Observatoire de la Cote d'Azur, reports his
discovery, on plates taken by A. Maury with the Schmidt telescope,
of an apparent supernova in a compact, anonymous galaxy at R.A.
= 13h38m42.07, Decl. = +32 43'55.2 (equinox 1950.0).  The
supernova is at R.A. = 13h38m42.35, Decl. = +32 43'50.1.  Pollas
provides the following photographic magnitude estimates:  Feb. 7,
B [21; Feb. 9, R [19; Mar. 11 and 12, B = 18.5; May 4, V = 21.

     This R CrB-type variable has faded, apparently for the first
time since 1981 (cf. IAUC 3607), as indicated by the following
visual magnitude estimates:  1988 Sept. 6.88 UT, 10.8 (P. Schmeer,
Bischmisheim, W. Germany); 1989 Apr. 11.72, 11.1 (H. Narumi,
Ehime, Japan); 12.79, 11.2 (Narumi); 24.68, 11.5 (Narumi);
27.70, 11.6 (Narumi); May 3.68, 11.6 (Narumi); 4, 11.5 (T. Kato,
Kyoto, Japan); 5, 11.6 (Kato); 7.06, 11.7 (Schmeer).

     J. C. Bhattacharyya, Indian Institute of Astrophysics
reports:  "CCD echelle spectra obtained by K. K. Ghosh using the
1.02-m telescope at Vainu Bappu Observatory, Kavalur, of the Be
star 27 CMa at a disperson of 0.7 nm/mm during Apr. 16-26 show
H-alpha and He I (587.6 nm) lines with P-Cyg profiles that
appear variable.   Earlier observations by him (1985-1989 Jan.)
showed typical double-peaked H-alpha emission for this star."

PKS 0735+178
     H. R. Miller and M. T. Carini, Georgia State University;
and A. C. Sadun, Agnes State College, write:  "We have recently
observed a large-amplitude variation for PKS 0735+178, using
the 1.1-m and 0.61-m telescopes at Lowell Observatory and the
No. 1 0.91-m telescope at Kitt Peak National Observatory.  The
following V magnitudes were measured:  1988 Dec. 21, 16.65;
1989 Mar. 8, 14.75; Mar. 15, 15.68; Mar. 18, 15.97; Mar. 19,
15.67; Mar. 25, 16.03.  Additional observations of this object
at other wavelengths are encouraged."

1989 May 8                     (4777)             Daniel W. E. Green

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