Central Bureau for Astronomical Telegrams
IAUC 5046: VY Aqr; 1989X; 1990f; 1989d1
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Circular No. 5046
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
VY AQUARII
This object is again in outburst. Visual magnitude estimates:
1989 Sept. 30.88 UT, [15.3 (A. Boattini, Florence, Italy); Oct. 27.76,
13.4 (P. Schmeer, Bischmisheim, West Germany); Dec. 3.76, [14.2
(Boattini); 1990 June 24.00, 16.0 (Boattini); 28.88, [14.0 (A. Pearce,
Scarborough, W.A.); 30.03, [12.5 (Schmeer); 30.75, 10.4
(A. Jones, Nelson, New Zealand); 30.78, 10.5 (Jones); July 1.94, 10.6
(Schmeer); 2.03, 10.6 (Schmeer).
SUPERNOVA 1989X IN ANONYMOUS GALAXY
According to IBVS 3465, M. Lovas, Konkoly Observatory, has
discovered a supernova at R.A. = 7h23m34s.5, Decl. = +64d00'29".8
(equinox 1950.0), 5".8 to the southwest of the center of an anonymous
galaxy. The object was recorded on 1989 Nov. 30.0875 UT at mag about
17.5. The galaxy itself is of mag 17.
PERIODIC COMET HONDA-MRKOS-PAJDUSAKOVA (1990f)
An independent recovery of this comet (cf. IAUC 5035) has been
reported by J. Gibson with the 1.6-m reflector (+ CCD) at Palomar:
1990 UT R.A. (1950) Decl.
June 17.42902 22 24 10.48 -13 46 41.5
17.43586 22 24 11.49 -13 46 38.3
18.43466 22 26 43.43 -13 38 19.0
18.44069 22 26 44.27 -13 38 16.2
18.44622 22 26 45.13 -13 38 13.3
18.45188 22 26 45.94 -13 38 10.3
The best images on the second night show a stellar condensation of m_r
about 21 in a 6" coma with possibly a 15" fan tail around p.a. 260 deg.
The tail is a faint feature, right at the sky limit.
PERIODIC COMET SCHWASSMANN-WACHMANN 3 (1989d1)
Total visual magnitude estimates: June 15.88 UT, 11.6 (A. Pearce,
Scarborough, W.A., 0.41-m reflector); 23.45, 11.4: (C. S. Morris, Pine
Mountain Club, CA, 0.26-m reflector); 24.45, 12.0 (A. Hale, Las Cruces,
NM, 0.41-m reflector); 25.88, 12.3 (Pearce); 26.88, 12.4 (Pearce);
27.87, 12.6 (Pearce); 28.88, 12.5 (Pearce); 30.89, 12.4 (Pearce).
1990 July 2 (5046) Brian G. Marsden
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