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IAUC 5249: 1991e; 1991P

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IAUC number 

                                                  Circular No. 5249
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 3 (1991e)
     C. S. and E. M. Shoemaker provide the following positions
from 0.46-m Schmidt films obtained at Palomar:

     1991 UT             R.A. (1950) Decl.        m1
     Apr. 14.17188    9 01 45.90   +13 44 49.7   17.5
          14.20781    9 01 46.80   +13 44 44.4
          15.14670    9 02 11.87   +13 42 41.8
          15.18732    9 02 12.91   +13 42 38.4

     Improved orbital elements from 21 observations Feb. 7-Apr. 15:

     T = 1990 Dec. 26.7758 ET         Peri. = 185.2002
     e = 0.248508                     Node  = 302.9169  1950.0
     q = 2.814337 AU                  Incl. =   4.9820
       a =  3.744999 AU    n = 0.1359961    P =   7.247 years

     1991 ET      R.A. (1950) Decl.     Delta      r       m1
     Apr. 14     9 01.69    +13 45.2    2.353    2.867    17.4
          24     9 06.97    +13 19.8
     May   4     9 14.02    +12 46.6    2.628    2.888    17.7
          14     9 22.55    +12 05.8
          24     9 32.33    +11 17.7    2.912    2.912    18.0
     June  3     9 43.11    +10 22.9
          13     9 54.69    + 9 21.6    3.189    2.939    18.2
          23    10 06.92    + 8 14.3
     July  3    10 19.64    + 7 01.6    3.446    2.968    18.4


SUPERNOVA 1991P IN ANONYMOUS GALAXY
     M. M. Phillips and G. M. Williger, Cerro Tololo Interamerican
Observatory, report that a CCD spectrogram (range 360-680 nm) of SN
1991P (cf. IAUC 5235) was obtained on Apr. 20.3 UT with the CTIO
4.0-m telescope.  Strong P-Cyg H-alpha emission and weaker H-beta
and Fe II multiplet-42 absorption are clearly observed, consistent
with a type-II supernova a few weeks past outburst.  Narrow emission
lines of H-alpha and forbidden O III 500.7-nm are also present in
the spectrum.  A redshift of 0.037 was measured for the nucleus of
the parent galaxy.


1991 April 24                  (5249)             Daniel W. E. Green

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