Circular No. 5393 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Telephone 617-495-7244/7440/7444 (for emergency use only) TWX 710-320-6842 ASTROGRAM CAM EASYLINK 62794505 MARSDEN or GREEN@CFA.BITNET MARSDEN or GREEN@CFAPS2.SPAN 1991 VL C. S. Shoemaker reports her discovery of a fast-moving aster- oidal object on films taken by E. M. Shoemaker, D. H. Levy, and her- self with the 0.46-m Schmidt telescope at Palomar, as follows: 1991 UT R.A. (1950) Decl. Mag. Nov. 7.28750 0 52 06.08 +24 48 39.2 17.2 8.19461 0 50 00.58 +24 35 19.4 9.31145 0 47 27.00 +24 18 34.7 The following orbital elements by B. G. Marsden, Center for Astrophysics, are necessarily very uncertain: T = 1992 Mar. 16.554 ET Peri. = 224.862 e = 0.85655 Node = 320.390 1950.0 q = 0.27062 AU Incl. = 10.326 a = 1.88650 AU n = 0.380382 P = 2.59 years 1991 ET R.A. (1950) Decl. Delta r V Nov. 20 0 25.10 +21 26.2 1.164 1.991 16.3 25 0 16.32 +20 03.1 30 0 08.80 +18 41.9 1.173 1.886 16.4 Dec. 5 0 02.60 +17 24.9 10 23 57.72 +16 13.8 1.197 1.776 16.5 15 23 54.12 +15 09.6 20 23 51.73 +14 12.9 1.226 1.659 16.5 25 23 50.46 +13 23.7 30 23 50.23 +12 42.0 1.251 1.534 16.5 V919 SAGITTARII Visual magnitude estimates (cf. IAUC 5321): Aug. 9.53 UT, 10.7 (M. Yamada, Komatu City, Ishikawa Prefecture, Japan); 13.90, 11.1 (A. Pereira, Cabo da Roca, Portugal); 14.48, 10.7 (Yamada); Sept. 1.87, 11.0 (Pereira); 16.84, 11.1 (Pereira); 26.84, 11.1 (Pereira); Oct. 2.82, 10.9 (Pereira); Nov. 5.80, 11.2 (Pereira). 1991 November 22 Daniel W. E. Green