THE ASTRONOMER Electronic Circular No 673 1992 Oct 4 13.50UT
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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PERIODIC COMET VAISALA 1 (1992u)
J. V. Scotti, Lunar and Planetary Laboratory, reports his recovery
of this comet with the Spacewatch telescope at Kitt Peak.
1992 UT R.A. (2000) Decl. m1
Sept.26.47353 8 00 37.19 +14 16 31.1
26.48174 8 00 37.80 +14 16 29.7 21.7
26.49755 8 00 39.31 +14 16 25.1
27.47478 8 02 07.37 +14 12 42.6
27.48235 8 02 07.98 +14 12 41.0 21.6
27.48815 8 02 08.56 +14 12 37.9
IAUC 5623
PERIODIC COMET GEHRELS 3 (1992v)
J. V. Scotti, Lunar and Planetary Laboratory, reports his recovery
of this comet with the Spacewatch telescope at Kitt Peak.
1992 UT R.A. (2000) Decl. m1
Sept.26.44826 5 25 12.80 +23 08 19.1 22.0
26.45819 5 25 12.99 +23 08 19.8
28.45122 5 26 02.94 +23 08 35.5
28.46007 5 26 03.06 +23 08 35.3
28.47270 5 26 03.43 +23 08 35.7 21.6
IAUC 5624
SUPERNOVA 1992az IN NGC 818
C. Pollas, Observatoire de la Cote d'Azur, reports his discovery of
a supernova (mag about 18) in the spiral galaxy NGC 818 = UGC 1633.
The new object is located at R.A. = 2h05m45s.04, Decl. =
+38 32'10".0 (equinox 1950.0), which is 28".5 east and 16".2 south
of the galaxy's centre (end figures 42s.61, 26".2). The supernova
was found on a Tech Pan film obtained by Pollas (assisted by J.-B.
Emond) on Sept. 27.04 UT and confirmed on an R plate taken Sept.
28.08 (respective limiting magnitudes 21.5 and 19). Nothing is
visible on the POSS prints to R about 19 and B about 20. A nearby
star of mag about 15 has end figures 45s.58, 38".1.
F. Michel and P. Prugniel obtained a CCD image on Sept. 29.06UT
with the 1.2-m Observatoire de Haute-Provence telescope, under
non-photometric conditions, measuring V = 18.85 +/- 0.2.
IAUC 5625
SUPERNOVA 1992ba IN NGC 2082
R. Evans, Hazelbrook, New South Wales, reports his visual discovery
on Sept. 30.75 UT of a supernova of mag about 14.0, located about
1' west of the centre of NGC 2082 (R.A. = 5h41m.6, Decl. =-64 20',
(1950).
M. M. Phillips, Cerro Tololo Interamerican Observatory, reports:
"A spectrum obtained of Evans' supernova in NGC 2082 shows that
this object is a type-II event. The spectrum, which was acquired
with the CTIO 4.0-m telescope on Oct. 1.36 UT, displays strong,
broad, P-Cyg emission lines of hydrogen atop a blue continuum. The
absorption component is noticeably weak at H-alpha, but quite well
developed at H-beta and H-gamma. Weaker P-Cyg lines of He I (587.6
and 447.1 nm) are clearly visible as well. Synthetic photometry of
a wide-slit (10") spectrum yields V = 15.22 and B-V = +0.07. From
these observed properties, it appears very likely that this
supernova has been caught at an early epoch."
IAUC 5625
Guy M Hurst