THE ASTRONOMER Electronic Circular No 746 1993 June 5 16.37UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise, Basingstoke,
Hants, RG22 4PP,England. Telephone/FAX(0256)471074 Int:+44256471074
TELEX: 9312111261 Answerback: TA G TELECOM GOLD: 10074:MIK2885
GMH at UK.AC.RUTHERFORD.STARLINK.ASTROPHYSICS STARLINK: RLSAC::GMH
GMH at UK.AC.CAM.ASTRONOMY.STARLINK STARLINK: CAVAD::GMH
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COMET SHOEMAKER-LEVY (1993h)
Preliminary elements by Brian Marsden:
T 1993 May 14.1440 TT w 199.38400 )
e 1.00000000 O 31.92900 ) 2000.0
q 5.4144600 A.U. i 72.36800 )
IAUC 5808
Ephemeris by G.Hurst using EPH.EXE by N.James:
m = 6.0 + 5.0 log R + 10.0 log r
Date R.A. (2000) Dec. R r Elong Mag. Motion
h m o ' (AU) (AU) o "/hr P.A.
1993 May
23.00 13 25.02 -33 58.1 4.568 5.415 143.4 16.6 26 264
1993 June
2.00 13 17.45 -34 6.9 4.660 5.416 134.2 16.7 21 265
12.00 13 11.38 -34 13.5 4.773 5.419 124.9 16.7 16 264
22.00 13 6.90 -34 20.7 4.904 5.422 115.7 16.8 12 260
1993 July
2.00 13 4.04 -34 30.7 5.047 5.426 106.6 16.9 7 245
12.00 13 2.71 -34 45.2 5.198 5.432 97.9 16.9 5 203
22.00 13 2.83 -35 5.4 5.352 5.438 89.5 17.0 6 157
1993 Aug
1.00 13 4.25 -35 32.1 5.504 5.446 81.4 17.1 10 141
11.00 13 6.84 -36 5.7 5.653 5.454 73.6 17.1 13 134
21.00 13 10.47 -36 46.3 5.793 5.463 66.2 17.2 17 132
SUPERNOVA 1993Q IN ANONYMOUS GALAXY
Rob McNaught, Siding Spring, reports his discovery of a supernova
(mag 19) on a U.K. Schmidt Telescope R plate taken on May 28.8 UT
by M. Hartley. The supernova is located at:
R.A. = 20h32m24s.61, Decl. = -42 57'57".7 (equinox 1950.0);
the galaxy's nucleus is located at (end figures) 23s.76, 54".9, and
a star of mag 18.5 is at 22s.76, 43".4. The positions are probably
good to +/- 1".5, as the object is situated in the corner of the
plate. The supernova is not present on SERC J or ESO R surveys.
IAUC 5809
COMET HELIN-LAWRENCE (1993l)
E. Helin and K. Lawrence report their discovery of a comet on
0.46-m Palomar Schmidt telescope films taken by Helin, Lawrence,
and M. Nassir. The object appears diffuse with central
condensation. The following measurements are by J. Alu:
1993 UT R.A. (2000) Decl. m1
May 17.43611 16 45 15.43 -16 05 43.1 16.5
17.46510 16 45 14.30 -16 05 44.6
17.47778 16 45 13.75 -16 05 43.6
19.35365 16 44 03.21 -16 07 39.7
19.38368 16 44 02.24 -16 07 44.5
IAUC 5810
V344 LYRAE
Tony Vanmunster, Belgium reported an outburst of V344 Lyr on
1993 May 25.020UT at mv=13.8. Taichi Kato, Japan e-mails
confirmation, recording the star with CCD at V=14.2 on May 25.67UT.
Superhumps were also detected by Kato with the following formula:
Max.UT = May 25.602 + 0.09145 E