THE ASTRONOMER Electronic Circular No 166 1988 Jun 06 19.28UT. Telecom Gold 72:MAG60138 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. ------------------------------------------------------------------- OCCULTATION OF MAG 12.3 STAR BY PLUTO ON 1988 JUNE 09.4UT Rob McNaught e-mails: "This occultation will be observable from the Pacific region, but astrometry of the star and Pluto in the next few days would be valuable. Measure the star and Pluto, giving 3 decimals in RA and two in Dec. The star to be occulted is on the chart in the HBAA, sitting on the top edge of the Pluto path at the appropriate time. The star has coordinates (1950) 14 49 36.872 +0 57 19.41 The following AGK3 stars can be used in the reduction. They have been corrected for proper motion to Epoch 1988.5, but are in Equinox 1950. AGK3 Mag RA (1950) Dec +1 1681 11.1 14 49 44.766 +1 20 47.76 +1 1683 8.7 14 52 18.279 +1 19 0.54 +1 1684 10.2 14 52 48.693 +1 31 48.26 +0 1782 7.9 14 47 29.546 +0 12 2.89 +0 1786 8.2 14 48 35.381 +0 45 43.63 +0 1787 10.6 14 48 38.344 +0 21 3.38 +0 1788 9.4 14 49 57.033 +0 18 56.63 +0 1789 9.2 14 50 2.659 +0 42 39.45 +0 1790 9.5 14 50 3.255 +0 13 19.66 +0 1792 10.0 14 50 24.407 +0 56 7.38 +0 1794 9.8 14 51 37.277 +0 18 55.03 +0 1796 10.5 14 52 38.485 +0 18 15.80 +0 1797 10.3 14 52 44.961 +0 16 54.31 +0 1798 9.1 14 52 49.998 +0 21 56.39 Please e-mail results to GED001 with copy to MAG60138 as soon as possible and preferably not after June 9.0 UT." Guy M Hurst