THE ASTRONOMER Electronic Circular No 688 1992 Dec 1 20.21UT 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 ------------------------------------------------------------------- V366 LAC Professional astronomers in Latvia have asked us to monitor V366 Lac, a suspected R-CrB star which faded in 1979 by nearly four magnitudes and which has not so far recovered. Although its inferred minimum of about magnitude 17 precludes it from visual observation we would appreciate an alert if it re-appears on a rise to maximum light. In the meantime perhaps photographers or those with CCD might like to attempt to record it. Its position is: RA 22h16.5m DEC +43 32'[1950]. An e-mail chart and sequence follow: \\\\\\V366 Lac c = AFGL 2881 S,120,10,S P,22h 16.5m +43 32' (1950) -C,22.3100, 43.7844,2000 O,63,62,13.0,[17V -T,R CrB? V Seq by Alksnis -S,TA921129 R,10.81,107,108,A R,11.39,65,14,1 R,12.56,4,73,3 R,12.90,59,99,2 R,13.43,64,60,8,B R,13.57,42,50,6 R,13.67,17,56,7 R,13.99,66,78,11 R,14.45,58,47,9 R,14.56,49,55,12 R,15.29,70,64,16 R,15.38,52,71,13 R,15.63,51,56,17,A R,15.72,55,65,22 M,12,49,101 M,13,117,119,88,97,93,9,86,37,97,84,101,64,72,78 M,13,53,84, M,14,106,39,107,1,90,45,86,85,82,98,54,8 M,14,64,114 M,15,95,72,113,62,44,35 M,16,59,63 E,35 ////// Basic chart automatically generated by GSC2FIND ver 1.4 SUPERNOVA 1992bk IN ESO 156-G8 M. Hamuy, Cerro Tololo Interamerican Observatory; and J. Maza, University of Chile, report the discovery of a supernova (mpg about 18) by M. Wischnjewsky (University of Chile) on a 20-min unfiltered IIa-O plate taken by G. Valladares with the CTIO Curtis Schmidt telescope on Nov. 19.23 UT. SN 1992bk is located about 12" east and 21" north of the nucleus of the elliptical galaxy ESO 156-G8 (R.A. = 3h41m43s.4, Decl. = -53 46'55", equinox 1950.0); this galaxy is near the centre of the rich cluster of galaxies CA 0340-538. IAUC 5660 SUPERNOVA 1992bl IN ESO 291-G11 Hamuy and Maza further report the discovery of a supernova (mpg about 17) by R. Antezana (University of Chile), found on a 20-min unfiltered IIa-O Curtis Schmidt plate taken by Valladares on Nov. 20.07 UT. SN 1992bl is located about 15" east and 22" south of the nucleus of the spiral galaxy ESO 291-G11 (R.A. = 23h12m25s.0, Decl. = -45 00'36", equinox 1950.0). IAUC 5660 Guy M Hurst