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Alert Notice 152: Nova Puppis 1991 [V351 Pup]

THE AMERICAN ASSOCIATION OF VARIABLE STAR OBSERVERS
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AAVSO ALERT NOTICE 152 (January 6, 1992)

The Central Bureau for Astronomical Telegrams has informed us of the photographic discovery of a nova in Puppis by Paul Camilleri, Cobram, Victoria, Australia, on 1991 December 27.51 UT at magnitude 6.4. Although the discovery was reported to the Bureau on 1992 January 3, the nova is designated as Nova Puppis 1991 because it reached maximum light in 1991.

The position of the nova (epoch 1950), measured by Robert NcNaught, Siding Spring Observatory, is:

R.A. 08 09 44.11  Dec. -34 58 29.2

McNaught also reports that, based on examination of SERC and ESO survey plates, the prenova may be a variable, although a very faint one (mI, mJ = ~19; mR = ~21). It should be noted that although the position is quite close to that of CP Pup (Nova Pup 1942), the present nova is NOT CP Pup.

Observations of Nova Pup 91 include:
1991 Dec. 11.55 UT, <12 (photographic w/T-Max 400 film, P. Camilleri, Cobram, Vic, Australia);
27.51, 6.4 ptg (Camilleri);
1992 Jan. 1.57, 7.4 ptg (Camilleri);
3.466, 8.01 V (A. C. Gilmore, Mt. John Obs., New Zealand);
3.555, 8.14 V (Gilmore);
3.57, 8.2 (R. McNaught, Siding Spring Obs., Australia);
3.74, 8.3 (McNaught);
6.21, 8.1 (C. Scovil, Stamford, CT);
6.546, 8.5 (A. Pearce, Scarborough, W. Australia);

Please use the accompanying 'd' scale chart to observe Nova Pup 91, and report your observations to AAVSO Headquarters.

The answering machine (617-354-0484) in on nights and weekends for your convenience.

Congratulations to Paul on his latest discovery!

Janet Mattei, who is still out of the country on a family matter, and I thank you very much for your astronomical efforts and contributions.

Clear skies and good observing!

Elizabeth O. Waagen
Senior Technical Assistant

Attachment: AAVSO chart - CP Pup d scale

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