SEARCHING AN UPTDATED  EM Cyg O-C

     (very poor observations last 10  years)

 

 

STAR

RA2000

DE2000

TYPE

EM Cyg

19 38 40.11

+30 30 28.4

UGZ+E

STAR

MAXP

MINP

MINS

COL

EM Cyg

11.9

14.4

 

P

 

 

 

 

Celestron 9,25 F 6.3 + FLI Kaf 3200 + R filter  - int. 90 sec

 

 

 

 

 

 

photometric run July 14, 2010, calculated TOM was for 21:52 UT

observed Minimum 21:20 UT

passing clouds  caused points dispersions in lightcurve

 

O-C = - 0.0224 d

 

 

 

positioning of O-C observed (July 14, 2010  - red point) in last years gateway

(courtesy of BRNO Obs)

Very poor observations of this star minimum in last years

 
 -

 

 

 

 

 

photometric run July 16, 2010, calculated TOM was for 22:44 UT

observed Minimum 22:09 UT

 

O-C = - 0.0243 d  

 

 

 

 

 

positioning of O-C observed (July 14, 2010  - red point) in last years gateway

(courtesy of BRNO Obs)

Very poor observations of this star minimum in last years

 

 

 

 

 

photometric run July 30, 2010, calculated TOM was for 21:52 UT

observed Minimum 21:16 UT

 

O-C = - 0.0248 d  

 

 

positioning of O-C observed (July 30, 2010  - red point) in last years gateway

(courtesy of BRNO Obs)

Very poor observations of this star minimum in last years