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IAUC 5944: N Sgr 1994; GRB 940301; OJ 287

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IAUC number

                                                  Circular No. 5944
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

     R. M. Wagner, Lowell Observatory, reports that a spectrum obtained
on Mar. 4 by R. Bertram shows an "un-novalike" spectrum with a very
red continuum and what may be narrow H-beta emission.  There are also
many narrow absorption lines and a broader absorption at about 500 nm.

     P. M. Kilmartin gave the 2000.0 version of the position on IAUC
5943 as R.A. = 18h50m36s.65, Decl. = -21d23'28".5.  Her FK5/J2000.0
re-reduction using the PPM gives end figures 36.73, 29.1 and
36.74, 28.4 for the separate exposures.  B. A. Skiff, Lowell Observatory,
provides the following end figures for a PPM reduction of his measurements
of a star on the Palomar Sky Survey prints close to this position:
36.83, 29.5 (R = 16), 36.77, 29.1 (B = 18).  There is a fainter star
(R = 19) at end figures 36.49, 27.8.

     Further photometry by A. C. Gilmore with the 0.6-m f/16
Cassegrain telescope at Mt. John University Observatory: Mar. 3.67 UT,
V = 8.67, U-B = +1.22, B-V = +1.65, V-R = +0.93, V-I = +1.82 (marginal
conditions); 4.67, 8.76, +1.4, +1.73, +0.96, +1.91 (good conditions).
The general uncertainty of +/- 0.05 mag (0.1 mag for U-B on Mar. 4)
appears also to be valid for the Feb. 27.68 observation (IAUC 5943).

     Visual magnitude estimates by F. Farrell, Hackham, South Australia:
Feb. 28.77 UT, 7.9; Mar. 3.79, 8.8.

GRB 940301
     K. Hurley, University of California; G. Fishman, C. Kouveliotou
and C. Meegan, NASA/Marshall Space Flight Center; T. Cline, NASA/Goddard
Space Flight Center; and M. Boer and M. Niel, Centre d'Etude Spatiale des
Rayonnements, Toulouse, report that the annulus of arrival of the gamma-ray
burst detected by Ulysses, BATSE, and COMPTEL (IAUC 5943) on Mar 1.84071
UT is centered at R.A.=21h27.65m, Decl. = +52d30.46m (equinox 2000.0) with
radius 59d.26 and total width 0d.30.  Further analysis will reduce this
width, but the present annulus is fully compatible with the COMPTEL and
BATSE error regions, as well as with the EGRET error region.

OJ 287
    Visual magnitude estimates (viz. the prediction on IAUC 5909):
Mar. 2.85 UT, [14.9 (T. Vanmunster, Landen, Belgium); 3.85, 14.5
(Vanmunster); 3.87, 14.6 (P. Van Cauteren, Aartselaar, Belgium);
3.99, 14.6 (Vanmunster); 4.89, 14.7 (Vanmunster).

1994 March 5                   (5944)              Brian G. Marsden

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