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IAUC 4008: mu Cep; 1984L; COORDINATED Obs OF GBS 0526-66; N Vul 1984; N Sgr 1984

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                                                  Circular No. 4008
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444


mu CEPHEI
     N. Mauron, Pic-du-Midi Observatory, reports: "Recent observations
with the 2-m telescope resulted in the detection around the
luminous red supergiant mu Cep of a huge circumstellar envelope of
angular diameter > 1' in the Na D line at 589.0 nm.  The images
were obtained over 1 hr through a focal reducer on an RCA CCD
camera equipped with a narrow-band filter and a Fabry-Perot fixed
interferometer.  High-resolution mm or infrared spectra of CO (and
other molecules, if possible) would be extremely useful in deriving
a reliable mass-loss rate for this massive evolved star."


SUPERNOVA 1984L IN NGC 991
     J. C. Wheeler, Department of Astronomy, University of Texas
at Austin, writes: "Spectra taken by R. Leverault on Aug. 28 near
maximum light confirm that this was a peculiar type I supernova
lacking the prominent absorption feature at 610 nm and very similar
to the supernova 1983N in M83.  Ultraviolet, optical, infrared
and radio observations are urgent."


COORDINATED OBSERVATIONS OF GBS 0526-66
     H. Pedersen writes that a campaign for observations of this
G-ray-burst source at all wavelengths of the electromagnetic spectrum
is planned for 1984 Dec. 25-1985 Jan. 6.  Potential observers
are invited to contact him at the address: 'Burst Watch', European
Southern Observatory, Casilla 19001, Santiago 19, Chile; telephone
56-2-69-88757; telex (Chile) 240881 ESOGO CL.


NOVA VULPECULAE 1984
     Visual magnitude estimates: Oct. 31.0 UT (J. Bortle, Stormville,
NY); Nov. 2.05, 8.9 (P. Maley, Houston, TX); 3.98, 8.8 (J.
DeYoung, Alexandria, VA); 6.09, 8.4 (C. Womack, Lewisville, TX);
8.00, 9.1 (DeYoung); 9.00, 9.4 (DeYoung); 10.95, 9.6 (DeYoung);
12.96, 9.7 (DeYoung); 14.09, 9.7 (Womack); 16.04, 10.0 (Maley).


NOVA SAGITTARII 1984
     Visual magnitude estimates by R. S. McNaught, Coonabarabran,
NSW: Oct. 17.44 UT, 13.4; 19.44, 13.6; 21.40, 13.8; 22.42, 14.0;
23.43, 14.5; 25.43, 14.7; 27.42, 14.7; Nov. 3.41, 15.3.


1984 November 19               (4008)              Brian G. Marsden

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