THE ASTRONOMER Electronic Circular No 726 1993 Apr 04 17.15UT 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 It is essential that observations should be based on the use of a common sequence for which reliable magnitudes are available and preferably with small colour indices. The revised (B) chart below is based mainly on V measurements by Sandage and H.Corwin. Please confine your comparisons to this list wherever possible AND report all your results with the FULL ESTIMATE, class and instrument. An example follows: 1993 Apr 2.400UT A(1)v(1)B 9.15 Class 1 J.Smith 0.44-m Reflector \\\\\\SN 1993J b in NGC 3031 = M81 S,120,30,S -C, 9.9236, 69.0203,2000 P,09h 51.3m +69 15' (1950) O,59,60,10.5,20V? -T,Sequence:Corwin/Sandage -G,61,55,1400,1000,150 -S,SN/22.01 R,8.9,57,74,A R,9.4,77,74,B R,10.32,88,67,C R,10.7,51,36,D R,11.78,53,51,E R,11.90,62,61,F,A R,12.45,51,60,G,A R,12.89,74,48,H,A M,9,50,9,99,87,56,69 M,10,38,57,66,26,52,109,84,118,90,96,34,110 M,10,110,104,13,63,1,73 M,11,74,43,42,19,111,3,14,1,40,64,63,91 M,11,66,101,99,96,65,92,108,105,88,93,24,79 M,11,56,109,51,117,104,117,60,79,7,39,80,26 M,12,107,38,104,64,83,41,60,16,14,61,108,18 M,12,78,17,31,42,23,7,63,59,98,60,59,32 M,12,53,68,103,3,118,81,99,86,81,87,86,91,102,22 M,12,15,28,22,79,49,58,37,106,30,10,119,109 M,12,114,90,91,111,51,112,35,117,113,20,43,102,87,30,106,77 M,13,76,13,39,7,67,14,46,49,82,35,78,7,45,24 M,13,19,1,3,44,10,10,15,20,37,24,64,39,80,9 M,13,112,19,100,26,39,81,72,47,41,82,109,8,13,7 M,13,10,92,110,54,41,86,34,100,28,12,57,8,104,59 M,13,84,103,48,22,8,21,109,9,65,94,17,65,37,80 M,13,39,85,117,102,86,111,105,112,28,117,66,22,2,42 M,13,106,105,70,108,82,60,109,29,23,69,104,113,90,31 M,13,100,51,69,71,111,113 M,14,102,24,6,17,18,60,93,21,74,45,21,6,83,32 M,14,37,20,9,47,10,23,27,63,62,4,56,23,97,68 M,14,69,15,109,40,10,39,2,45,11,6,15,54,110,9 M,14,87,17,40,11,84,25,4,10,24,5,35,71,42,47 M,14,101,82,111,75,37,19,22,17,93,31,117,21,91,23 M,14,41,28,91,49,70,5,5,88,83,74,106,44,18,96 M,14,110,96,97,70,47,94,30,1,40,45,3,28,76,95 M,14,7,63,59,24,74,74,77,43,43,90,49,93,89,16 M,14,96,94,108,88,113,95,38,49,1,63,18,79,52,110 M,14,35,53,67,94,89,22,59,108,88,97,5,69,11,99 M,14,81,115,29,13,81,70,38,44,52,109,109,117,88,95 M,14,89,109,88,80,8,111,34,60,87,97,110,119,1,114 M,14,102,118,89,45,80,42,74,116,59,80,33,101,36,62 M,14,7,45,59,95,33,4,22,106,58,61 E,220 ////// Basic chart automatically generated by GSC2FIND ver 1.4