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IAUC 4498: NO SN IN M31; 1987e1; 1987d1; QU Vul

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IAUC number 

                                                  Circular No. 4498
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


NO SUPERNOVA IN M31
     Numerous reports have been received noting that there is no
new object at the position reported on IAUC 4496 to a limiting magnitude
of about 15, including the following:  Nov. 24.86 UT, nothing to
mpg about 15 (D. Buczynski, Conder Brow, England, 0.55-m reflector,
appearance identical with Oct. 28 plate taken at the same telescope;
communicated by G. M. Hurst); 24.95, nothing to mpg about 14 (R. E.
McCrosky and R. Stefanik, Oak Ridge Observatory); 25.0, nothing to
mag 14 (D. Axon and D. Carter, La Palma Observatory; communicated
by P. Charles).


PERIODIC COMET TEMPEL 1 (1987e1)
     J. V. Scotti, Lunar and Planetary Laboratory, reports his
recovery of this comet with the 0.91-m SPACEWATCH telescope at Kitt
Peak, as shown below.  The comet is stellar within the limits of
seeing, and is close to the prediction on MPC 11501.

       1987 UT             R. A.  (1950)  Decl.          m2
       Oct. 27.43524     8 52 34.76    +25 19 04.0      20.9
            27.46073     8 52 35.85    +25 19 04.5
       Nov. 24.43729     9 06 56.08    +25 57 27.6      20.4
            24.46997     9 06 56.68    +25 57 33.4


COMET ICHIMURA (1987d1)
     J. V. Scotti reports that his Nov. 24 images (cf. IAUC 4497)
indicate m2 about 17 and coma diameter about 24'.
     Total visual magnitude estimates:  Nov. 24.27 UT, 8.1 (J. V.
Scotti, Kitt Peak, AZ, 10x50 binoculars); 24.33, 8.3 (D. Levy,
Tucson, AZ, 0.08-m refractor; in 0.4-m reflector, coma diameter 11'
and very faint tail 20' long toward p.a. 210 deg).


QU VULPECULAE
     Visual magnitude estimates (cf. IAUC 4461):  Oct. 1.84 UT,
12.5 (S. Korth, Monheim, W. Germany); 7.91, 12.4 (A. Boattini,
Florence, Italy); 17.85, 1.24 (Korth); 20.54, 13.0 (S. Sakuma,
Kawasaki, Japan); 27.49, 13.0 (Sakuma).


1987 November 24               (4498)            Daniel W. E. Green

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