THE ASTRONOMER Electronic Circular No 579 1991 Nov 13 20.21UT 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 or GUYH at UK.AC.SUSSEX.CLUSTER TELECOM GOLD: 10074:MIK2885 PRESTEL 256471074 ------------------------------------------------------------------- NOVA OPHIUCHI 1991 No. 2 Rob H. McNaught, Anglo-Australian Observatory, e-mails the discovery of another nova by Paul Camilleri, Cobram, Victoria. The nova was found on a photo taken Apr. 11, but not until that photo was used for a comparison on Oct. 28. Photovisual magnitudes estimated by Camilleri from his T-Max 400 exposures with a 135-mm lens are as follows: 1991 Mar. 22.65 UT, [12.5; Apr. 11.60, 9.3; Apr. 16.54, 10.5; Apr. 21.58, 11.0; May 17.45, 11.0: (image may be of a nearby star); July 11, [12. Measures by McNaught of an Apr. 11 negative give the following position: R.A. = 17h40m07s.44, Decl. = -20 05'43".1 (equinox 1950.0, uncertainty 4" in each coordinate; comatic images). B, V, R, and I CCD images, taken on Nov. 8.4 by A.E. Samuel and R. H. McNaught with the 1.0-m reflector at Siding Spring, confirm the nova at V about 16.5 and show it to be increasingly bright towards the blue and substantially bluer than surrounding field stars. Coordinates measured by McNaught from the R and I images give end figures 07s.44, 35".0 (uncertainty 0".4 in each coordinate). No image appears at this position on the SERC J, R, and I, nor on the ESO B and R, survey films. R CRB Further to the note on E578, Gary Poyner, Assistant Coordinator, UK Nova/Supernova Patrol reports recent estimates by himself and Melvyn Taylor: 1991 Oct 5.82UT, 6.1 (Poyner); Nov 3.79, 6.3 (Poyner); 8.75, 6.5 (Taylor); 12.78, 6.4 (Poyner); 13.71, 6.6 (Poyner); 13.74, 6.6 (Taylor). TA AGM 1991 This event, to be held next Saturday, will be attended by about 1 in 4 of the worldwide membership of The Astronomer, according to the latest booking figures. If anyone still wishes to attend, they can be accommodated providing they book by telephone or FAX with the Editor AS SOON AS POSSIBLE. Guy M Hurst