THE ASTRONOMER Electronic Circular No 601 1992 Jan 19 12.00UT 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 JANET BOXES: GMH at UK.AC.CAM.ASTRONOMY.STARLINK or GUYH at UK.AC.SUSSEX.CLUSTER TELECOM GOLD: 10074:MIK2885 PRESTEL 256471074 ------------------------------------------------------------------- AK CANCRI Taichi Kato, Japan informs us that M.Koshiro, Suwa, Japan has observed an outburst of AK Cancri, a star on the Recurrent Objects Programme of the UK Nova/Supernova Patrol, and located at: RA 08h 52.6m DEC +11 30' (1950). On 1992 Jan 13 Koshiro observed it at magnitude 13.6 visual. M.Iida, Japan confirmed the outburst on Jan 15 at mv=13.5. This UG star, formerly designated 77.1933 Cnc was announced by Morgenroth (AN 249, 383-386, [1933]) as being bright on 1928 Mar 17 and 1932 Feb 25. This appears to be the first positive report to be received by our patrol. The existing (B) chart, based on the Morgenroth publication, is totally inadequate and has today been replaced by a (C) chart based on a GSC download and a sequence by Huruhata. The E-mail version of this new chart follows: \\\\\\AK Cancri Discovered by Morgenroth S,120,10,S P,08h 52.6m +11 30' (1950) O,60,60,13.0,[17.0p -S,TA920118 R,9.85,16,112,A R,11.07,10,57,B R,12.3,91,83,C R,12.8,24,49,D R,13.7,55,79,E R,14.5,53,36,F R,15.3,71,49,G R,16.1,57,51,H R,16.3,73,46,J M,12,108,91,70,112 M,13,100,80,58,31,30,80,15,45,52,97 M,13,84,116 M,14,100,69,118,53,73,13,94,55,57,113,88,87,86,99 M,14,51,92,76,28 M,15,107,37,6,1,34,22,37,42,101,11,14,38,29,76 M,15,31,62,7,67,114,1,26,85,104,70 M,15,108,73,110,80,22,84,78,87,75,96,40,36,106,99 M,15,60,99,1,106,87,89 E,49 ////// Basic chart GSC2FIND ver 1.1; Seq:Huruhata SUPERNOVA 1992A IN NGC 1380 W. Liller, Vina del Mar, Chile, revises his magnitude estimate on Jan. 11.15 UT to 13.7 (cf. IAUC 5428); further unfiltered magnitudes measured with a 0.20-m Schmidt (+ SBIG ST-4 CCD; comparison V data from NGC 1326 sequence by R. Buta): Jan. 12.1, 13.56; 14.1, 13.24; 15.1, 13.40. IAUC 5431 TA SOFTWARE The upgrade to RESIDUAL.EXE mentioned on E600 is version 1.7 and not 1.5 as originally stated. Guy M Hurst