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IAUC 4396: GX 339-4; U Sco; 1987A; 1986n; PW Vul; Corrs

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IAUC number 

                                                  Circular No. 4396
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


GX 339-4
     R. Corbet and P. Charles, Oxford University; and A. Smale,
University College, London, report:  "We have obtained spectroscopy
(0.3-nm resolution) with the Anglo-Australian Telescope of the
black-hole candidate GX 339-4 during its recent faint state (cf.
IAUC 4383).  On May 10 we detected H-alpha emission with an equivalent
width of about 1.0 nm.  Further observations are urged."


U SCORPII
     Further visual magnitude estimates (cf. IAUC 4395):  May 18.42
UT, 11.3: (D. A. J. Seargent, The Entrance, N.S.W.); 19.44, 11.6
(Seargent); 20.54, 12.1 (R. H. McNaught, Coonabarabran, N.S.W.);
20.58, 12.5 (T. Cragg, Siding Spring Observatory).


SUPERNOVA 1987A IN THE LARGE MAGELLANIC CLOUD
     Visual magnitude estimates:  May 19.36 UT, 2.8 (Seargent);
20.42, 2.9 (G. Garradd, Tamworth, N.S.W.); 20.45, 2.9 (McNaught).


COMET SORRELLS (1986n)
     Total visual magnitude estimates:  Apr. 29.80 UT, 9.2 (J.
Kobayashi, Kumamoto, Japan, 0.31-m reflector); May 1.68, 9.5 (G. W.
Wolf, Wellington, New Zealand, 0.21-m reflector); 5.46, 9.7 (A.
Hale, Las Cruces, NM, 0.20-m reflector); 12.17, 9.8 (A. Pereira,
Linda-A-Velha, Portugal, 0.15-m reflector).


PW VULPECULAE
     Visual magnitude estimates (cf. IAUC 4278) by M. Verdenet,
Bourbon-Lancy, France:  1986 Dec. 20.82 UT, 14.4; 1987 Apr. 1.15,
14.7; May 1.10, 14.7.


CORRIGENDA
     On IAUC 4360, last line, the Mar. 4.7 observation was of GK
Per, not Nova And 1986.  On IAUC 4373, GK Persei, line 4, the Feb.
26.7 observation by A. Mizser should be attributed to Nova And
1986, not GK Per.


1987 May 21                    (4396)            Daniel W. E. Green

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