THE ASTRONOMER Electronic Circular No 774 1993 Sept 9 19.31UT 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 ------------------------------------------------------------------- COMET MUELLER (1993p) Revised orbital elements (cf E770): T 1994 Mar 26.4210 TT w 261.05600 ) e 1.00000000 O 193.79100 ) 2000.0 q 0.9672400 A.U. i 105.03200 ) Source: IAUC 5857 Positions are geocentric Ephemeris by G.Hurst using EPH.EXE by N.James: m = 6.0 + 5.0 log R + 10.0 log r Date R.A. (2000) Dec. R r Elong Mag. Motion h m o ' (AU) (AU) o "/hr P.A. 1993 Sept 10.00 1 20.35 +49 48.2 2.439 3.054 118.7 12.8 40 256 15.00 1 11.81 +49 23.2 2.324 2.996 123.2 12.6 47 251 20.00 1 2.14 +48 44.9 2.214 2.938 127.7 12.4 55 246 25.00 0 51.45 +47 50.9 2.110 2.880 132.0 12.2 64 241 30.00 0 39.95 +46 38.6 2.014 2.821 136.0 12.0 73 236 1993 Oct 5.00 0 27.88 +45 5.9 1.925 2.762 139.4 11.8 83 231 10.00 0 15.56 +43 11.2 1.845 2.703 142.0 11.6 92 227 15.00 0 3.32 +40 53.8 1.776 2.644 143.3 11.5 101 223 20.00 23 51.50 +38 14.1 1.717 2.584 143.1 11.3 109 219 25.00 23 40.42 +35 14.3 1.671 2.524 141.2 11.1 115 215 30.00 23 30.28 +31 57.7 1.636 2.464 137.8 11.0 119 211 1993 Nov 4.00 23 21.27 +28 28.7 1.614 2.403 133.1 10.8 120 208 9.00 23 13.46 +24 52.3 1.603 2.342 127.5 10.7 120 204 14.00 23 6.90 +21 13.9 1.604 2.281 121.4 10.6 117 201 19.00 23 1.57 +17 38.1 1.614 2.220 115.0 10.5 112 198 24.00 22 57.42 +14 8.9 1.633 2.159 108.4 10.4 106 194 29.00 22 54.38 +10 49.3 1.660 2.097 101.8 10.3 99 191 NOVA AQUILAE 1993 Following a slow fade this nova reached an initial minimum of around visual magnitude 13.8 on 1993 August 2. However subsequent results suggest that it is again brightening: 1993 Aug 26.972UT, 13.6 (Gary Poyner, Birmingham, UK) 28.543, 13.5 (N.Makiguchi, Japan) Sep 3.877, 13.4 (Poyner) 7.590, 13.2 (M.Moriyama, Nagaski, Japan) 8.585, 13.1 (Moriyama) HO DEL Taichi Kato, Japan reports that M.Moriyama, Nagaski, Japan has observed an outburst of this UG star. Available results follow: 1993 Sept 7.657UT, 14.0v (Moriyama) 8.520, 14.2 (Moriyama) 8.854, 15.5pv(Nick James, Chelmsford, UK) WW VUL Bjorn Granslo, Blindern, Norway e-mails that he has observed this eruptive star unusually faint: 1993 Sept 5.008UT, 12.2v (0.203-m T, sequence AFOEV) Margareta Westlund, Sweden and M.Moriyama, Japan have confirmed this fade from a 'normal magnitude' of around 11.0: 1993 Sept 3.85, 12.0 (Westlund) 7.587,12.2 (Moriyama)