COMMISSION 27 OF THE I. A. U. INFORMATION BULLETIN ON VARIABLE STARS NUMBER 45 Konkoly Observatory Budapest 4 March 1964 NOVA PUPPIS 1963 1875.0 7h 58m 16s -28deg 7'.6 1900.0 7 59 17 -28 11.6 I found this object on plates from the Astrograph 400/1600 mm. The Nova is invisible 1962 Dec 5, 6, 7 (fainter than 17m), bright 1963 Jan 20. On Sky Patrol plates invisibility was observed 1962 Dec 25 and 28, the star being fainter than 11m; it appears first 1963 Jan 18, 7m.8. Its behaviour seems to be that of a slow Nova: 1963 Jan 18, 20 about 0m.6 brighter than CoD -28d5372 (8.m3), Sp. A2, ptg. 8.4m, Jan 30 about 8m.5, Feb 23, 24, 27 8m.0, March 17 8m.0, March 23 about 10m. On 20 Astrograph plates 1963 Dec 20 to 1964 Feb 14 the Nova is about 16m, practically without further decline. The first rise probably occurred during the time of moonlight (full moon Jan 10, last quarter Jan 17, 1963). On Palomar Atlas the praenova is visible as a bluish star of about 18m.5. Further information will be given in Astronomische Nachrichten. Sonneberg Observatory, February 24, 1964. C. HOFFMEISTER