In most photometric systems filters (passbands) are used from which readings of magnitude of light may take account of latitude and humidity among terrestrial factors.
Dǎɣ tiyaɗ dak tekaniten ən ɗhotométrique, itkalan timayen (təmsidaw okaynen) ɣur iyad imarawan ən magnitude dǎɣ tənure adoben uduf ən asidin wan tebade əd abdug, ən gar iyaɗ imaɣšadan ən kalan.