THE ASTRONOMER Electronic Circular No 731 1993 Apr 14 19.39UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074 TELEX: 9312111261 Answerback: TA G TELECOM GOLD: 10074:MIK2885 GMH at UK.AC.RUTHERFORD.STARLINK.ASTROPHYSICS STARLINK: RLSAC::GMH GMH at UK.AC.CAM.ASTRONOMY.STARLINK STARLINK: CAVAD::GMH ------------------------------------------------------------------- SUPERNOVA 1993J IN NGC 3031 Visual results from discovery until the end of March: THE ASTRONOMER/BAA Start JD= Database of visual result Star: SN 1993J in M81 2449000 UT Date UT Dec JD Estimate mv Cl I Surname 28/03/93 0.860 75.36 11.8 Garcia, F. 29/03/93 0.010 75.51 11.3 F Garcia 29/03/93 0.170 75.67 11.2 McGrath, T. 29/03/93 0.820 76.32 11.0 J Ripero 29/03/93 0.820 76.32 11.2 F Pujol 29/03/93 0.880 76.38 11.3 Pujol, F. 29/03/93 0.880 76.38 11.3 Garcia, F. 29/03/93 0.950 76.45 11.1 F Garcia 30/03/93 0.100 76.60 11.0 R Treffers 30/03/93 0.537 77.04 10.4 M Yamada 30/03/93 0.845 77.35 10.3 P Schmeer 30/03/93 0.865 77.37 10.6 1 G Poyner 30/03/93 0.887 77.39 C(1)v(2)D 10.5 2 G Hurst 30/03/93 0.890 77.39 C-2 10.5 2 M Taylor 30/03/93 0.900 77.40 11.0 O Midtskogen 30/03/93 0.906 77.41 10.5 P Schmeer 30/03/93 0.916 77.42 10.6 G Poyner 30/03/93 0.928 77.43 C-1 10.4 1 M Taylor 30/03/93 0.930 77.43 C-2 10.5 Bengtsson, H. 30/03/93 0.940 77.44 10.5 J Shanklin 30/03/93 0.950 77.45 V=C 10.3 M Taylor 30/03/93 0.989 77.49 10.6 G Poyner 31/03/93 0.080 77.58 10.7 R Panther 31/03/93 0.087 77.59 a(1)v(1)c 10.0 2 D Moore 31/03/93 0.100 77.60 10.0 Kohl, R. 31/03/93 0.130 77.63 10.5 F Cianciolo 31/03/93 0.130 77.63 10.5 Cainciolo, F. 31/03/93 0.130 77.63 10.5 Wren, W. 31/03/93 0.130 77.63 10.6 O Midtskogen 31/03/93 0.400 77.90 D+4 10.3 2 P Hornby 31/03/93 0.424 77.92 10.5 M Yamada 31/03/93 0.440 77.94 10.5 M Yamada 31/03/93 0.576 78.08 10.5 M Kato 31/03/93 0.596 78.10 103-2; 113+4 10.6 Takahashi, S. 31/03/93 0.840 78.34 10.5 M Zanotta 31/03/93 0.969 78.47 10.7 W Hasubick 31/03/93 0.970 78.47 C(2)v(1)D 10.6 J Shanklin Results in this initial period of the light curve are critical. If anyone has observations not yet listed please submit them immediately. Similarly if any estimate includes blank columns, particularly with regard to the estimate please send the additional detail as quickly as possible. There is also a suggestion of possible duplicate entries, possibly caused by original and amended results being sent to us via different sources. Please clarify if amendments are needed,