COMMISSION 27 OF THE I. A. U.
       INFORMATION BULLETIN ON VARIABLE STARS
                    NUMBER 313


				Konkoly Observatory
				Budapest
				1968 November 14


	UBV OBSERVATIONS OF NOVA DELPHINI


  Nova Delphini was observed by the writer on 15
nights between July 1967 and September 1968 with a 
refrigerated 1P21 photomultiplier on the 80 cm Zeiss reflector
of the Vatican Observatory, using a Knick DC amplifier and
a Brown recorder. Several Johnson-Morgan Standard Stars
were observed each night; alpha Delphini was used as a check
star. The observations were reduced with an IBM 1620 
computer, using the Programme prepared by F.C. Bertiau (Ricerche
Astronomiche, Vol. 6, No. 20, 1963).
  In the table are listed the heliocentric J.D., and
the V, B-V and U-B observations of the Nova. Observations of
lower weight are indicated by a colon.

J.D.hel.     V       B-V      U-B     J.D.hel.     V     B-V   U-B
2,400,000+   -       - -      - -    2,400,000+    -     - -   - -
39686.3632   5.64m  +0.27m   -0.70m  40060.3472   6.54m +0.18m-0.98m
     .3652   5.69     .27    -0.73        .3491   6.54    .18 -1.00
  704.4048   5.49     .24    -0.60     066.3428   3.33    .28 -0.92
  707.3262   5.50     .24    -0.63        .3435   6.64    .26 -0.94
     .3280   5.50     .25    -0.62     068.3632   6.83    .32 -0.93
  709.3256   5.51     .27    -0.52        .3648   6.83    .33 -0.93
     .3286   5.49     .26    -0.54     088.3382   6.83    .38 -0.82
  711.3420   5.47     .26    -0.53        .3399   6.83    .39 -0.83
     .3437   5.47     .25    -0.53     089.3356   6.84    .39 -0.83
  792.2817   4.81:    .27:   -0.27:       .3372   6.84    .39 -0.82
     .3358   4.81:    .25:   -0.30:    124.3122   6.89    .40 -0.75
     .3374   4.83:    .24:   -0.31:       .3138   6.88    .41 -0.74
  818.3035   4.80     .29    -0.37     125.3078   6.89    .44 -0.69
     .3052   4.81     .29    -0.38        .3094   6.89    .45 -0.71
  819.2543   4.88     .29    -0.36
     .2559   4.87     .28    -0.36


Specola Vaticana
Castel Gandolfo
7 November 1968
                                      D. J. K. O'CONNELL