Q: Can astronomical data be used to corroborate or reject testimonies of a positive moon sighting in the Hanafi School?
A: Most of the texts were against using astronomy in relation to moonsighting. A minority permitted it.
It’s worth noting that the birth of the new moon is scientifically unequivocal (qat’i), whereas visibility is not, it s probabilistic (zanni). So testimonies should not be rejected based on expected visibility.