Thread:Anubis 10545/@comment-32094204-20190323182056/@comment-262546-20190325061406

Are you referring to the hyperdrive article? Some of them are "reasonably" canon, but I'd stop short of arguing that they're all actually canon.

For example, in Promethus Unbound, it's explicitly stated that Promethus can travel just over 50 light years in 20 minutes. So the number for velocity that's calculated in this instance is probably the most-legitimate one we have (using the values 50 and 20). But even then, that calculation assumes that it's exactly 50.00 light years and exactly 20.00 minutes, and that Prometheus' hyperdrive was being used at 100% power. So even this calculation may not be exactly accurate, but I'd still consider it canon because of how explicitly it was stated.

However, a number of those calculations assume that screen time correlates to elapsed time within the show, which I don't necessarily think we can assume. To be on the safe side, I'd consider most calculations non-canon unless all of the values involved are explicitly stated and don't change between episodes.