THE ASTRONOMER Electronic Circular No 659 1992 August 12 20.30 UT 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 TELECOM GOLD: 10074:MIK2885 GMH at UK.AC.RUTHERFORD.STARLINK.ASTROPHYSICS STARLINK: RLSAC::GMH ------------------------------------------------------------------- 1992 NA Improved orbital elements from MPC 20647: T = 1992 Sept.14.3545 TT Peri. = 7.8335 e = 0.561562 Node = 349.6391 2000.0 q = 1.048719 AU Incl. = 9.7715 a = 2.391945 AU n = 0.2664265 P = 3.699 years 1992 TT R. A. (2000) Decl. Delta r Elong. Phase V Aug. 6 23 15.46 -46 56.9 0.179 1.157 139.6 34.7 14.5 8 23 26.19 -46 06.1 0.168 1.147 139.2 35.3 14.4 10 23 37.58 -45 01.1 0.158 1.137 138.8 36.0 14.2 12 23 49.66 -43 39.2 0.148 1.128 138.4 36.6 14.1 14 0 02.42 -41 57.2 0.138 1.119 138.0 37.3 13.9 16 0 15.83 -39 51.6 0.129 1.111 137.6 37.9 13.8 18 0 29.85 -37 18.3 0.120 1.103 137.1 38.7 13.7 20 0 44.39 -34 13.1 0.112 1.096 136.5 39.5 13.5 22 0 59.37 -30 32.0 0.105 1.089 135.7 40.5 13.4 24 1 14.66 -26 12.2 0.098 1.082 134.6 41.7 13.3 26 1 30.12 -21 12.5 0.093 1.076 133.2 43.2 13.2 28 1 45.62 -15 35.5 0.089 1.071 131.4 45.0 13.1 30 2 01.01 - 9 28.0 0.086 1.066 129.2 47.2 13.1 Sept. 1 2 16.15 - 3 01.5 0.085 1.062 126.5 49.8 13.1 3 2 30.92 + 3 29.3 0.085 1.058 123.6 52.5 13.2 5 2 45.22 + 9 49.6 0.087 1.055 120.7 55.2 13.3 7 2 58.95 +15 46.6 0.090 1.053 117.9 57.8 13.5 9 3 12.05 +21 12.1 0.094 1.051 115.3 60.1 13.6 11 3 24.47 +26 02.4 0.100 1.050 113.1 61.9 13.8 13 3 36.17 +30 17.3 0.105 1.049 111.2 63.4 14.0 15 3 47.14 +33 58.9 0.112 1.049 109.8 64.5 14.1 IAUC 5582 SUPERNOVA 1992au IN ANONYMOUS GALAXY M. Hamuy, Cerro Tololo Interamerican Observatory; and J. Maza, University of Chile, report the discovery by R. Antezana (Universi- ty of Chile), on an objective-prism unfiltered IIIa-J plate (90- min) taken by J. Maza and M. Wischnjewsky with the CTIO Curtis Schmidt telescope on July 29.25 UT, of an apparent supernova (mpg about 17) located about 21" east and 9" north of the nucleus of a galaxy at R.A. = 0h08m08s, Decl. = -50 13'.6 (equinox 1950.0). Confirmation was made by R. Aviles (CTIO) on CCD B and V images ob- tained on Aug. 10.39 with the CTIO 0.9-m telescope. IAUC 5584 Martin Mobberley (Assistant Editor)