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IAUC 4424: 1987r; UX Ari; 1987c

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IAUC number 

                                                  Circular No. 4424
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
Postal Address: Central Bureau for Astronomical Telegrams
Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
TWX 710-320-6842 ASTROGRAM CAM    Telephone 617-495-7244/7440/7444


PERIODIC COMET REINMUTH 1 (1987r)
     T. Gehrels and J. V. Scotti, University of Arizona, report the
recovery of this comet with the 0.91-m SPACEWATCH telescope at Kitt
Peak.  The comet is very slightly diffuse, coma diameter about 15", and
there is a hint of a tail towards p.a. 260 deg.  The correction to the
elements on MPC 10524 is Delta-T = +0.02 day (ephemeris on MPC 11864).

       1987 UT             R. A.  (1950)  Decl.         m1
       July 22.44372    03 32 23.47    +11 30 43.7
            22.45274    03 32 24.07    +11 30 47.0
            22.45722    03 32 24.34    +11 30 46.9
            22.46628    03 32 25.17    +11 30 48.5
            22.47500    03 32 25.72    +11 30 49.4
            23.44436    03 33 39.19    +11 33 52.1     19.6
            23.44892    03 33 39.60    +11 33 52.8
            23.45343    03 33 39.89    +11 33 54.2
            23.45791    03 33 40.23    +11 33 54.1
            23.46240    03 33 40.56    +11 33 56.4


UX ARIETIS
     F. Makino and the Ginga Team, Institute of Space and Astronautical
Science, Tokyo, telex: "The x-ray satellite Ginga observed
a 2- to 10-keV flux of 4 x 10E-10 erg/cm2/s from UX Ari on July
23.71 UT.  The high temperature luminosity of 1.0 x 10E32 erg/s is
five times the quiescent luminosity and indicates an x-ray flare in
progress.  Ginga will make further observations on July 24-26, and
radio, optical, and ultraviolet observations are also urged."


COMET NISHIKAWA-TAKAMIZAWA-TAGO (1987c)
     Total visual magnitude estimates by G. W. Wolf, Wellington,
New Zealand (0.06-m refractor):  July 10.73 UT, 9.8; 17.00, 10.0.
     The following observations have been reported concerning meteors
from the possible radiant mentioned on IAUC 4414: July 20.8 UT,
0.67-hr watch, none (R. H. McNaught, Siding Spring Observatory; G.
Garradd, Tamworth, N.S.W.); July 21.1, 2.71-hr watch, 2 possible,
mag 1 (A. Pereira, Linda-A-Velha, Portugal); July 21.2, 1.10-hr
watch, 2 possible, mag 1.5 (A. J. Noymer, Weston, MA).


1987 July 24                   (4424)            Daniel W. E. Green

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