The Omnidoxical Encyclopaedia of Astronism is a post-disquisitional segment of the Omnidoxy within the Appendix of the Omnidoxy as part of the Original Omnidoxical Series solely written and organised by Cometan and published by the Astronist Institution. The Omnidoxical Encyclopaedia of Astronism provides an extensive series of encyclopaedic entries of one hundred of the most important beliefs and terms that emerged out of the Omnidoxy in relation to Astronism. These encyclopaedic entries consist of a few paragraphs each exploring the meaning of the term in question, its position in Astronism, often considering its significance in relation to other terms and beliefs. The Omnidoxical Encyclopaedia of Astronism constitutes the first encyclopaedic reference guide to Astronism and its categorisation within the Omnidoxy provides it within even greater significance and authority.

The Omnidoxy is the founding treatise of the Astronist religion and was solely authored by the philosopher and religious founder, Cometan. Partitioned into twelve disquisitions, each of which are further divided into hundreds of discourses, which are themselves titled by those which are known as rubrals, The Omnidoxy has been codified according to a unique writing structure known as insentence. The Omnidoxy not only forms the foundations of Astronism, but it remains the primary modern contributor and the book that ignited the establishment of the Astronic tradition of religion which encompasses the philosophy of Astronism. Introducing brand new philosophical concepts such as cosmocentricity, reascensionism, transcensionism, and sentientism amongst many others, The Omnidoxy remains the principal signifier of a new era in philosophy. The Omnidoxy births hundreds of new belief orientations, schools of thought, neologisms, disciplines of study, theories, and concepts which, when combined and considered collectively, have formed the basis of Astronism. The authorship of The Omnidoxy rests with the single individual philosopher, Cometan who began writing The Omnidoxy at the age of seventeen driven by what he terms as personal inspiration. The historical origination of The Omnidoxy rests in its authorship by Brandon Taylorian during early 21st century England, specifically in the northern county of Lancashire. Like in all textual criticism, the timing and location of the codification of The Omnidoxy is integral to understanding why and how it was written, especially by considering the influential factors impacting Taylorian during his construction of the text, particularly the cultural, political, religious, and social contexts of Taylorian's personal life and of wider society at the time. This forms an important branch of study within omnidoxicology known as omnidoxical criticism, or omnidoxical exegesis in which scholars study and investigate The Omnidoxy in order to discern conclusive judgements inspired by how, where, why, by whom, for whom, and in what circumstances The Omnidoxy was written.

The Appendix of the Omnidoxy is the post-disquisitional segment of the Omnidoxy making up 460,000 words and principally includes The Grand Lexicon of Astronology, the Omnidoxical Encyclopaedia of Astronism, and the Glossary of the Omnidoxy. This segment comprises a significant portion of the entire Omnidoxy, just under one quarter of the entire text and is classified as the Peripheral Omnidoxy alongside the Preppendix of the Omnidoxy which resides before The Twelve Grand Disquisitions.

The Peripheral Omnidoxy is a publication that consists of both the Preppendix of the Omnidoxy and the Appendix of the Omnidoxy publications, therefore, all non-disquisitional segments of the Omnidoxy. It was solely written and organised by the philosopher and founder of Astronism, Cometan, and was originally published by Astral Publishing, an imprint and publishing subsidiary of the Astronist Institution. It consists of a number of different types of books and genres, including reference works, philosophical musings, quotations, mythology, encyclopaedias, lexicons, and dictionaries.

The Tridoxy comprises of a series of short philosophical discourses forming the third disquisition of the one million word long philosophical treatise known as The Omnidoxy solely authored by Cometan, which is the founding book of the philosophy of Astronism. The Tridoxy has been designated the inclusive discipline of abettology which encompasses the study of both aid and the nature, forms, and applications of stewardship. In the omnidoxical style, The Tridoxy is written according to the structure of insentence, its discourses are titled by rubrals, and it comprises of a number of unique terms, newly introduced concepts, beliefs, and notions that form the Astronist approach to understanding the ideas of aiding and stewarding, the latter of which holds particular importance as it is applied to the context of The Cosmos and space exploration. The Tridoxy covers a wide range of philosophic subjects, including ethics, epistemology, and logic whilst simultaneously introduces its own unique disciplines of study and areas of contemplation. Despite being one of the shortest disquisitions of the twelve that form The Omnidoxy, The Tridoxy demonstrates an importance granted to the notions of aiding others, the different forms and manifestations of aid, as well as the ethics of aiding and stewarding. Solely authored by the mononymous autodidactic philosopher, Cometan, The Tridoxy presents itself as a short interlude between much larger disquisitions that formulate The Omnidoxy.

The Dodecadoxy, also known as The Ultimation, is the twelfth and final disquisition of the philosophical treatise known as The Omnidoxy, the founding text of the philosophy of Astronism. The Dodecadoxy is written largely according to the definitionalist style of Cometanic omnidoxical writing and concerns itself with the study of imagination and freedom. Not only does The Dodecadoxy address the natures and applications of imagination and freedom, but it formulates an entire system of belief on freedom which is then subsequently applied to the entire belief system of Astronism. One of the foremost natures of Astronism is freedom and this is manifested and emphasised by The Dodecadoxy. Transcensionism is the foremost exemplification of the integration of freedom into the core of the beliefs of the philosophy of Astronism. As the final disquisition of The Omnidoxy, The Dodecadoxy also concerns itself with the nature of the personhood of Cometan as its sole author as well as some of the most prominent elements of Astronism and including other metaphilosophical topics of study.

The Monodoxy is a 275,000 word-long philosophical disquisition categorised as the first of twelve disquisitions that, when considered collectively, form The Omnidoxy, the founding treatise of the philosophy of Astronism established by Cometan. The disquisition comprises of hundreds of discourses which are themselves titled by rubrals and written according to a style and structure known as insentence. The Monodoxy's authorship solely rests with Cometan, the first Millettic philosopher and the founder of Astronism whom began writing The Monodoxy at the age of just seventeen through what he termed as personal inspiration. The Monodoxy has been said to formulate the thematic identity of the philosophy of Astronism due to its prominent focus on the elements, progeny, and phenomena of The Cosmos in a distinct way to all the other eleven disquisitions forming The Omnidoxy. Hundreds of new schools of thought, disciplines of study, and philosophical belief orientations hold their roots in The Monodoxy in addition to thousands of new terms, concepts, and theories which hold a distinguished originality and Cometanic style combined with an Astronic identity. There are a total of fifty-three discourses which constitute The Monodoxy, each of which holds its own special title known as a rubral which are used to provide overviews of the discourses to which they are associated.