Cometan (born 1 July, 1998) is a British philosopher on whose teachings, beliefs, and writings Astronism was founded. 

Upon being the first Astronist, Cometan began to disseminate his ideas using technology and marketing techniques with the aim of reordering society according to the principles and beliefs founded in Astronism. His philosophical treatise, the Omnidoxy (2019), was the first account of Millettic/Astronic philosophy in history.  

Cometan, the founder and leading exponent of a cosmological theology, formulated his beliefs and ideas of The Cosmos systematically to create a new religious and philosophical tradition which he called Astronism.