I have made these calculations thanks to the formulas that we have learned in class:
D=10*(m-M+5/5) where M it's the absolute magnitude and m apparent magnitude. M=-21.02 and m=11.2
D=10*(11.2-(-21.02)+5)/5)
D=10*(1851/250)
D=25351286.3 parsec
I found that the distance it's of 27594125,442 parsec, so again, I wasn't really far.