THE ASTRONOMER Electronic Circular No 366 1989 Dec 03 17.00UT. Microlink:MAG60138 JANET:GMH at UK.AC.RO-GREENWICH.STARLINK Ed:Guy M Hurst, 16, Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP, England. Telephone:(0256)471074.Int:+44256471074 Telex:94082518 Answerback: TAGUY ------------------------------------------------------------------- P/COMET TUTTLE-GIACOBINI-KRESAK (1989b1) J.Gibson, OAO Corporation and Jet Propulsion Laboratory, reports his recovery of this comet with the 1.5-m refl at Palomar on Nov 9 at m2=19.5. The indicated correction to MPC 12135 is: T=-0.02 day. IAUC 4909 COMET AARSETH-BREWINGTON (1989a1) Improved elements: T=1989 Dec. 27.886 ET Peri=205.272 ) Node=345.208 ) 1950.0 q=0.30060 AU Incl= 88.378 ) Ephemeris: 1989 ET RA (1950) DEC Earth Sun m1 Dec 3 16h20.67m +15 19.5 4 16 20.91 +14 18.6 1.221 0.730 7.1 5 16 21.17 +13 15.4 6 16 21.43 +12 09.9 1.191 0.686 6.7 7 16 21.72 +11 01.7 8 16 22.02 +09 50.5 1.161 0.642 6.4 9 16 22.36 +08 36.2 10 16 22.73 +07 18.4 1.130 0.597 6.0 11 16 23.14 +05 56.9 12 16 23.61 +04 31.1 1.099 0.553 5.6 13 16 24.15 +03 00.9 14 16 24.79 +01 25.7 1.069 0.509 5.2 15 16 25.53 -00 14.8 IAUC 4916 V418 CAS (=Q1989/90) M.Collins, Sandy, reports that this mira variable located at: RA 01h09m36s DEC +61 55 (1950) was recorded at about mag 10.5-11 on Nov 23.9UT using K2415 film. This is exceptionally bright as the GCVS range is 14.6-[20p. V1819 CYGNI This nova located at RA 19h52.7m DEC +35 33'(1950) is now very faint but recent estimates suggest that there may be an identification problem. Star 'W' has been added under revision 891203. It is located 82mm from top and 117mm from right edge on photograph by R.Chanal of 860902 on back cover of TA272. A new photograph at prime focus would be helpful to check the ID. RZ SGE G.Poyner, Birmingham, queries faint comparisons on the sequence for RZ Sge. His estimate is followed by the chart value: K 14.7, 15.0; L 14.9, 15.3; M 15?, 16.3. Any comments? Guy M Hurst