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IAUC 4908: 1989a1; DX And; 1989v; 1989r

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IAUC number 

                                               Circular No. 4908
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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
MARSDEN or GREEN@CFA.BITNET    MARSDEN or GREEN@CFAPS2.SPAN


COMET AARSETH-BREWINGTON (1989a1)
     E. Bowell, Lowell Observatory, reports the following precise
positions obtained by B. Skiff at the Anderson Mesa station:

     1989 UT             R.A. (1950) Decl.
     Nov. 19.06076   16 17 34.40   +26 54 27.1
          19.06840   16 17 34.42   +26 54 04.1
          20.06424   16 17 47.14   +26 10 49.1
          20.06840   16 17 47.03   +26 10 40.0

     Total visual magnitude estimates:  Nov. 18.11 UT, 8.3 (C. S.
Morris, Pine Mountain Club, CA, 20x80 binoculars; 20' tail in
p.a. 45 deg); 18.74, 8.2 (R. Panther, Northampton, U.K., 0.26-m
reflector); 18.75, 8.5 (M. V. Zanotta, Laino, Italy, 0.15-m reflector;
independent discovery).
     Corrigenda.  On IAUC 4907, lines 6 and 14, for  Dale  read  Dahle;
line 12, for  Volde  read  Volda.


DX ANDROMEDAE
     This cataclysmic variable star is undergoing an outburst (cf.
IAUC 4722), as indicated by the following visual magnitude estimates:
Nov. 16.86 UT, 14.8: (S. Korth, Duesseldorf, W. Germany); 19.93,
13.9 (P. Schmeer, Bischmisheim, W. Germany); 20.74, 13.4 (Schmeer);
20.86, 13.4 (Korth).


COMET HELIN-ROMAN-ALU (1989v)
     Total visual magnitude estimates (cf. IAUC 4892):  Nov. 3.05 UT,
10.4 (G. Kronk, Troy, IL, 0.33-m reflector); 4.19, 10.2 (A. Hale, Las
Cruces, NM, 0.41-m reflector); 4.90, 10.2 (J. E. Bortle, Stormville,
NY, 0.32-m reflector); 5.24, 9.9 (Morris, 0.26-m reflector); 9.84,
10.1 (A. Pereira, Cabo da Roca, Portugal, 0.15-m reflector); 17.06,
10.1 (Kronk); 18.80, 10.6 (Schmeer, 0.20-m reflector); 20.08, 10.0
(Kronk).


COMET OKAZAKI-LEVY-RUDENKO (1989r)
     Total visual magnitude estimates (cf. IAUC 4904):  Nov. 13.19,
5.5 (Schmeer, 20x80 binoculars); 17.50, 6.0 (Hale, 10x50 binoculars);
18.53, 6.4 (Morris, 20x80 binoculars); 19.20, 6.1 (Schmeer; 0.7-deg
tail in p.a. 312 deg); 20.48, 5.8 (Kronk, 20x80 binoculars; 1.4-deg
tail in p.a. 304 deg).


1989 November 20               (4908)             Daniel W. E. Green

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