Hi everyone

,
I have just recieved my SRP( Student research project(Experiment)) for science and am wanting to observe this variable star to confirm its variability.
Though I can't find any comparison charts anywhere on the net

.I have a 12'' dob with 50mm finderscope.
I was thinking either to use the dob or the finderscope.The variable star is in the 6-7 magnitude range and can be easily seen through the finder.
Do any of you guys know were I can find some comparison charts?
Thanks in advance
cheers Orestis