THE ASTRONOMER Electronic Circular No 316 1989 Jul 07 17.50UT. Telecom Gold 72: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:265871(MONREF G) Quote"72:MAG60138 ATT G.HURST"in FIRST line. ------------------------------------------------------------------- P/COMET BRORSEN-METCALF (1989o) E.Helin, Palomar, reports recovery of this comet: 1989UT July 4.38333UT 0h24m17.18s +11 11 21.2 m1=15.0 4.40677 0 24 21.79 +11 12 17.2 IAUC 4804 A.Hale, Las Cruces, NM, using 0.41-m refl., estimated m1=11.5 on July 7.41UT. Brian Marsden computes the following elements with 1919-1989 linkage: Epoch = 1989 Oct. 1.0ET T=1989 Sept.11.9395ET Peri=129.6256 e=0.971970 Node=310.8761 (1950) q=0.478748AU Incl= 19.3306 a=17.079716 AU n=0.0139631 P = 70.586 years Ephemeris with mag values by Morris (which are very uncertain): 1989 ET RA (1950) DEC Earth Sun m1 July 3 00h19.93m +10 20.3 1.102 1.523 10.9 8 00 36.60 +13 35.3 13 00 56.48 +17 21.2 0.901 1.362 10.0 18 01 20.83 +21 41.3 23 01 51.43 +26 34.1 0.739 1.196 9.0 28 02 30.54 +31 45.8 IAUC 4805 P/COMET GEHRELS 2 (1989n) J.Gibson reports recovery of this comet with the 1.5-m refl. at Palomar on June 14 at m1=19 and close to predictions on MPC12124. IAUC 4800 SUPERNOVA 1989M IN NGC 4579 G.N.Kimeridze (USSR) reports discovery of a supernova in NGC 4579 (RA 12h35.1m DEC +12 05',1950 =M58). On June 28.82UT mpv=12.2 and the object is 40"W and 33"N of the nucleus. IAUC 4802 Guy M Hurst