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IAUC 4143: SNe; DO Dra; R CrB

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IAUC number 

                                                  Circular No. 4143
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


SUPERNOVAE
     R. Kirshner, Center for Astrophysics, writes: "Photometric
observations of the supernova 1985Q in Mk 516 by R. Schild and I.
R. G. Wilson at the Whipple Observatory on Nov. 15 and subsequent
dates show that no object is present at the site reported on IAUC
4124 to v = 19.  The supernova must have faded at an unusually
rapid rate.  Any limits from other observers would be welcome."

     R. Buta, Mount Stromlo Observatory, telexes: "From a spectrum
(range 400-690 nm) taken by G. Meurer on Nov. 8, we confirm that
the supernova 1985P in NGC 1433 is of type II.  The spectrum shows
broad P-Cyg profiles of H-alpha and H-beta, and also a feature close to
the expected position of Na I D."


DO DRACONIS
     R. H. McNaught, Siding Spring Observatory, reports that the
current outburst of this object (IAUC 4130) is the first to be
studied while in progress.  He found DO Dra (= PG 1140+719 = 3A
1148+719 = ZA 1150+719) ~ 1 magnitude above minimum on Atlas
Stellarum: on 1969 May 11.90 and 12.97 UT, mpg  = 14.0 and 14.1,
respectively. He notes that Wenzel (1983, M.V.S. 9, 141) found three
outbursts on Sonneberg plates: 1962 Apr. 9.9, mpg = 10.0; 1968
Nov. 10.8, 10.8; 1975 Nov. 23.8, 10.5.  McNaught provides the
following precise position (+/- 0"4), from a Palomar Sky Survey glass
copy at the Royal Greenwich Observatory: R.A. = 11h40m48s88, Decl. =
+71deg57'58"5 (equinox 1950.0).

     Further visual magnitude estimates:  Oct. 29.79 UT, 11.0 (G.
M. Hurst, Basingstoke, England); 29.90, 11.5 (M. Taylor, Wakefield,
England).


R CORONAE BOREALIS
     Visual magnitude estimates (cf. IAUC 4116), in part provided
by J. A. Mattei, AAVSO:  Sept. 21.1 UT, 7.3 (C. Womack, Lewisville,
TX); 25.8, 7.7 (K. Medway, Southampton, England); 28.0, 8.3 (D.
Weier, Madison, WI); 30.78, 8.7 (M. Verdenet, Bourbon-Lancy,
France); Oct. 3.1, 9.1 (D. Megginson, St. Charles, MO); 4.2, 9.4
(Womack); 8.0, 10.4 (L. Hiett, Berkeley Springs, WV); 10.77, 10.1
(Verdenet); 14.23, 10.9 (K. Krisciunas, Hilo, HI); 17.76, 10.2
(Verdenet); 20.76, 9.5 (Verdenet); Nov. 11.0, 7.4 (Verdenet).


1985 November 26               (4143)            Daniel W. E. Green

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