Why have I tested the astrolabe several times and the results are different?

You need a place of birth when selling ... If the result of hand-selling is not wrong, it should be the accuracy of the website ... The degree of this free place will inevitably be biased. ...

If the accuracy of the birth time is within half an hour, it's almost the same. It doesn't matter, anyway ... basically, it's difficult for ordinary people to find someone to go to school for you ~ ~ ~