What to do in this situation?HELP ME!!!
i have just started to get into photometry and i dont actually have a full fledged DSLR however i have a DSC(a sony mvc-cd350) with a exposure of 2-3 seconds through a meade etx 70-at telescope(at 14X) can get me down to 7th magnitude easily. Yes ik my set up probely isnt the greatest but im in a extreme budget(my parents dont wanna help :/) anyway i imaged a double star just for fun and decided to practice calibrating magnitude constants and getting my margine of error.There was about 4 stars in the feild of veiw 3 of them i was pretty accurate(according to skytools 3 starter addition) but the star in question was dimmer than it should be. This star is a suspected variable with little magnitude diffrence(again according to skytools) but it was a whole magnitude dimmer. outside its range and the only reason i question it is because the other stars were pretty accurate(+/- 0.003 a magnitude measurement but then agan this star suprised me...i dont know what to do.you tell me.