THE ASTRONOMER Electronic Circular No 654 1992 July 29 19.05UT
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 JANET BOXES:
GMH at UK.AC.CAM.ASTRONOMY.STARLINK TELECOM GOLD: 10074:MIK2885
GMH at UK.AC.RUTHERFORD.STARLINK.ASTROPHYSICS STARLINK: RLSAC::GMH
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EDITORS ABSENCE
During my absence (cf E653) please ensure all e-mail is sent to my
normal boxes on CAVAD and RLSAC but not to the Sussex system as
the mailbox there closes at the end of July as the VAX service is
being withdrawn. Discoveries should be telephoned to one of the
TA alert team as listed on the front page of each issue of TA.
NOVA SAGITTARII 1992 No. 2
Rob H. McNaught, Anglo-Australian Observatory, reports his
measurement of the nova's position from a V CCD image obtained by
D. F. Koehne (Mt. Stromlo Observatory) using the Siding Spring
1.0-m reflector on July 23.6 UT: R.A. = 18h20m17s.29, Decl. =
-28 23'35".6 (equinox 1950.0); V about 9.1.
Photometry by A. C. Gilmore, Mt. John University Observatory:
July 18.53 UT, V = 9.12, B-V = +0.29, U-B = -0.67, V-R = +0.86, V-I
= +1.18 (non-photometric conditions); July 20.60, 9.07 +/- 0.03,
+0.28 +/- 0.01, -0.68 +/- 0.02, +0.78 +/- 0.01, +1.05 +/- 0.04.
IAUC 5566
PERIODIC COMET WOLF (1992m)
S. Nakano, Sumoto, Japan, reports the recovery of this comet by
T. Seki (Geisei). The comet appears nearly stellar with a faint
coma (m1 = 19.5-20 on July 10). The following positions are in
close agreement with the prediction on MPC 14594 (the July 25 film
was taken in bad seeing):
1992 UT R.A. (2000) Decl. m1
July 10.75069 0 48 20.13 +22 15 58.0 20
25.71875 1 04 29.29 +22 56 53.1 20
26.69479 1 05 25.80 +22 58 11.9 20
26.71529 1 05 27.49 +22 58 14.9
IAUC 5567
TAV 1831+19
Gary Poyner, Birmingham, reports that his visual observations of
this suspected variable, originally found by Mike Collins on patrol
photographs of 1991 August 8, shows that it is the northern
component of the close double which actually varies:
1991 Nov 880UT, 12.8; 1992 May 26.008, 12.0; July 6.975, 11.0;
15.968, 11.5; 19.962, 11.5. During the four dates in 1992 listed
the southern component appeared steady near magnitude 13.3.
Nick James has also reported variation is attributable to the
northern star from his photographic work.
Guy M Hurst