------------------------------------------------------------------- THE ASTRONOMER Electronic Circular No 1099 1996 July 17 18.44UT Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke, Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074 INTERNET: GUY@TAHQ.DEMON.CO.UK GMH at AST.STAR.RL.AC.UK WORLD WIDE WEB http://www.demon.co.uk/astronomer ------------------------------------------------------------------- SUPERNOVA 1996ak IN NGC 5021 F. Colas, Institut d'Astrophysique de Paris, reports the discovery by Christian Buil, on CCD images obtained on July 13.93 UT with a 2.12-m reflector at Pic du Midi Observatory, of a supernova (mag 18, compared with Guide Star Catalogue stars) located 25" west and 13" south of the center of NGC 5021 (R.A. = 13h12m.1, Decl. = +46o12', equinox 2000.0). Confirmation of SN 1996ak was reported by M. Reugnier at Toulouse on July 14.8 and by C. Cavadore at Pic du Midi on July 14.9. IAUC 6434 (extract) COMET C/1996 N1 BREWINGTON Updated elements from the Central Bureau: T 1996 Aug 3.4300 TT w 43.97818 ) e 1.00000000 O 234.90922 ) 2000.0 q 0.9257340 A.U. i 52.14146 ) Source: MPEC 1996-N02 Positions are geocentric m = 10.5 + 5.0 log R + 10.0 log r Ephemeris by G.Hurst using EPH.EXE by N.James: Date R.A. (2000) Dec. R r Elong Mag. Motion h m o ' (AU) (AU) o "/hr P.A. 1996 July 16.00 12 8.40 +15 21.2 0.845 0.982 62.9 10.1 177 38 17.00 12 11.41 +16 16.7 0.847 0.976 62.4 10.0 176 38 18.00 12 14.42 +17 11.8 0.849 0.971 62.0 10.0 175 38 19.00 12 17.44 +18 6.6 0.851 0.966 61.5 10.0 174 38 20.00 12 20.47 +19 0.9 0.853 0.961 61.1 10.0 173 38 21.00 12 23.50 +19 54.9 0.855 0.956 60.7 10.0 172 39 22.00 12 26.54 +20 48.3 0.857 0.952 60.4 10.0 171 39 23.00 12 29.58 +21 41.4 0.860 0.948 60.0 9.9 169 39 24.00 12 32.62 +22 34.0 0.862 0.944 59.7 9.9 168 39 25.00 12 35.67 +23 26.1 0.865 0.941 59.4 9.9 167 39 26.00 12 38.72 +24 17.8 0.867 0.938 59.1 9.9 166 39 27.00 12 41.77 +25 9.0 0.870 0.935 58.9 9.9 164 39 28.00 12 44.83 +25 59.6 0.872 0.933 58.6 9.9 163 39 29.00 12 47.89 +26 49.8 0.875 0.931 58.4 9.9 162 39 30.00 12 50.96 +27 39.4 0.878 0.929 58.2 9.9 160 40 31.00 12 54.03 +28 28.5 0.881 0.928 58.1 9.9 159 40 1996 Aug 1.00 12 57.11 +29 17.0 0.883 0.927 58.0 9.9 157 40 2.00 13 0.19 +30 5.0 0.886 0.926 57.8 9.9 156 40 3.00 13 3.28 +30 52.5 0.889 0.926 57.7 9.9 154 40 4.00 13 6.38 +31 39.3 0.892 0.926 57.7 9.9 153 40 5.00 13 9.49 +32 25.6 0.895 0.926 57.6 9.9 151 41 6.00 13 12.60 +33 11.4 0.897 0.927 57.6 9.9 150 41 7.00 13 15.73 +33 56.5 0.900 0.928 57.6 9.9 149 41 8.00 13 18.87 +34 41.1 0.903 0.929 57.7 10.0 147 41 9.00 13 22.03 +35 25.0 0.906 0.931 57.7 10.0 146 42 10.00 13 25.20 +36 8.4 0.908 0.933 57.8 10.0 145 42 11.00 13 28.40 +36 51.2 0.911 0.936 57.9 10.0 143 42 12.00 13 31.61 +37 33.4 0.914 0.938 58.0 10.0 142 42 13.00 13 34.84 +38 15.0 0.916 0.941 58.1 10.0 141 43 14.00 13 38.10 +38 56.0 0.919 0.945 58.3 10.1 140 43 Guy M Hurst