home *** CD-ROM | disk | FTP | other *** search
- Circular No. 5386
- 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
-
-
- PERIODIC COMET SHOEMAKER-LEVY 6 (1991b1)
- Precise positions communicated by S. Nakano, Sumoto, Japan:
-
- 1991 UT R.A. (1950) Decl. Observer
- Nov. 11.60903 0 18 05.51 + 5 53 32.5 Kushida
- 11.62361 0 18 07.69 + 5 54 47.3 "
- 12.46076 0 20 14.42 + 7 13 42.8 Sugie
- 12.46632 0 20 15.57 + 7 14 19.0 "
- 12.47546 0 20 16.69 + 7 15 02.9 Kojima
- 12.50347 0 20 20.40 + 7 17 44.7 "
- 12.51725 0 20 21.94 + 7 18 57.4 "
- 13.54571 0 22 55.02 + 8 52 28.4 Kobayashi
- 13.60796 0 23 03.64 + 8 57 56.4 "
-
- Y. Kushida and R. Kushida (Yatsugatake South Base Observatory).
- A. Sugie (Dynic Astronomical Observatory). 0.25-m f/3.4 Schmidt.
- T. Kojima (YGCO Chiyoda Obs.). 0.25-m f/3.4 Wright-Schmidt camera.
- T. Kobayashi (Oizumi). 0.16-m f/4.8 reflector + CCD.
-
- Orbital elements by Nakano from 9 observations, Nov. 3-13:
-
- T = 1991 Oct. 13.862 ET Peri. = 333.121
- e = 0.70354 Node = 37.263 1950.0
- q = 1.13207 AU Incl. = 16.821
- a = 3.81861 AU n = 0.132083 P = 7.46 years
-
- 1991 ET R.A. (1950) Decl. Delta r m1
- Nov. 10 0 14.09 + 3 15.2 0.252 1.190 10.6
- 15 0 26.52 +10 58.5
- 20 0 38.75 +17 17.7 0.312 1.237 11.4
- 25 0 50.81 +22 21.2
- 30 1 02.75 +26 21.4 0.393 1.295 12.2
- Dec. 5 1 14.63 +29 30.9
- 10 1 26.48 +32 00.5 0.491 1.361 13.0
- 15 1 38.34 +33 59.0
- 20 1 50.20 +35 32.9 0.602 1.434 13.7
- 25 2 02.05 +36 47.6
- 30 2 13.89 +37 47.0 0.726 1.513 14.5
-
- Total visual magnitude estimate by R. Keen, Mt. Thorodin, CO
- (0.32-m reflector): Nov. 13.24 UT, 10.3.
-
-
- 1991 November 13 Daniel W. E. Green