THE ASTRONOMER Electronic Circular No 814 1994 Feb 22 21.36UT 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 ------------------------------------------------------------------- NOVA CASSIOPEIAE 1993 The nova appears to have entered a DQ-Herculis type fade after an initial 'dip' followed by a brightening and then the full decline. By 1994 Feb 18 it had reached magnitude about 11 although subsequently there is considerable scatter in the estimates. Mark Kidger reports that the nova has become very bright in the infrared and comparison of estimates on K2415 with visual results from various observers now shows the latter rather fainter with a significant 'index' developing, again probably due to the redness of the object. The following C chart has an extended sequence by Brian Skiff together with further preliminary measures by Mark Kidger in Tenerife: \\\\\\N Cas 93 c Found by K.Kanatsu S,120,10,S -C,23.6964, 57.5167,2000 P,23h 39.4m +57 14' (1950) O,61,60,6.4,18 -L,R,Nova -T,Nova Seq:Skiff;19-22 Kidger -S,N/026.01 R,8.28,33,47,8 R,9.80,109,98,11 R,10.37,56,29,12 R,10.92,22,71,13 R,11.23,69,70,14,A R,11.83,105,32,15 R,12.52,58,32,16 R,13.09,77,54,17 R,13.28,49,56,18 R,13.51,43,60,19 R,13.95,69,67,20,R R,14.65,64,66,21,A R,15.03,54,57,22,B M,10,12,118 M,11,89,38,81,10,104,115,99,114 M,12,79,37,113,48,106,101,83,44,69,77 M,12,54,95,58,62,9,48,36,94,70,77,69,95 M,13,58,8,117,27,20,5,36,32,28,29,28,5,66,13 M,13,76,15,4,26,7,28,101,10,73,38,112,24,115,17 M,13,109,12,102,85,67,106,39,43,18,67,100,75,47,113 M,13,14,115,112,108,84,109,60,64,99,105 M,13,97,44,20,60,70,104,43,93,59,65 M,14,94,28,117,32,113,21,87,30,72,91,106,106,50,94 M,14,40,49,105,102,119,119 M,15,71,97 E,72 ////// Basic chart automatically generated by GSC2FIND ver 1.4 It is vital that the nova is now followed intensely as DQ-Herculis events are comparatively rare. The minimum may be very faint and if so we look to astrophotographers and CCD observers to assist.