This article is about a non-fiction entity related to the Astronist belief system or the Astronic tradition.
Any article relating to a fictional entity will be clearly marked as being part of the Spacefaring World.
A subera in the context of Astronist terminology is a classification of a time period that exists within or between eras or is more than a year long. The first example or usage of the term was in relation to the Quest for the Ultimation subera.
