COMMISSION 27 OF THE I. A. U.
           INFORMATION BULLETIN ON VARIABLE STARS
                        NUMBER 828

	                                Konkoly Observatory
        	                        Budapest
                	                1973 September 21

	        THE SUPERNOVA IN NGC 5253

  The Supernova discovered by Kowal (IAU Circ. No. 2405, 1972) in
  NGC 5253 (R.A.13h37.1m, Declination -31d24") was observed over
  the period May to August at Boyden Observatory. The Supernova
  was located 56" west and 85" south of the nucleus of NGC 5253.
  The 41cm aperture Nishimura reflector was used in these observations. 
  The detector was a solid CO2 cooled EMI 6256A photomultiplier 
  tube, using a Johnson B filter.

Date        	Julian Date   	m_ptg         Date          Julian Date     m_ptg
1972                            	      1972
May   	17   	2441455       	8,40          June     	6   2441475         9,40
       	18   	     56         8,30            	7        76         9,50
       	19   	     57         8,20            	9   	 78         9,70
       	22   	     60         8,70           	       15 	 84         9,80
       	23   	     61         8,80           	       16   	 85         9,90
       	30   	     68         9,15           	       19   	 88         9,90
June     1   	     70         9,20           July    28       527        10,50
         2   	     71         9,25          	       31       530        10,50
         3   	     72         9,30            Aug  	7       537        10,60
         5   	     74         9,35


                      [FIGURE 1]

An examination of the light curve indicates an initial decline
of approximately 0.04 magnitude per day, followed by a steady
decline of 0.01 magnitude per day.
The falloff in intensity along with the regularity of the light
curve suggests a type 1 Supernova.

10th September, 1973.         A.H. JARRETT
                              Boyden Observatory




     PHOTOGRAPHIC OBSERVATIONS OF ECLIPSING VARIABLES



Var.       	Min. helioc.      O-C_M    	O-C_K       	n
       		J.D.244...
EG Cep     	1918.502         +0.007d    	+0.007d    	14
V787 Cyg   	1922.486         +0.041    	+0.041		13
UX Her     	1831.479         -0.037    	-0.001 		 9
UV Leo     	1796.406          0.000    	+0.012 	         9
FL Lyr     	1900.4515        -0.004    	+0.0025  	10
X Tri      	1930.4905        -0.0293   	-0.0267  	12
                1931.4625        -0.0288   	-0.0263  	11
RU UMi     	1798.438         -0.004    	-0.004		12


C_M from GCVS 1969/70, C_K from SAC 44 (1973), n = number of plates.
Observations made in the same manner as described in IBVS 786.





                                P. AHNERT
                                Sonneberg