Mythoasterism is the tradition of collecting together catasterisms (constellation myths) as well as catasterisms considered collectively as organised by Astronist scholarship.

Catasterisms relate to the formation of different constellations in a pre-Astronist setting that have more recently be classified as part of the Astronic tradition of mythology.

Many involve the concept of prostellation which is distinguished from transtellation by involving the process of becoming a particular constellation, usually by the power of a higher being. In the organisation of these catasterisms, Astronist scholarship has formed two categories, each of which focus on the prioritising certain myths over others:

• Predenance (the primary catasterism)
• Subdenance (the set of subordinate or secondary catasterisms)

List of predenant catasterisms

• Callisto's Prostellation (Ursa Major, the Great Bear)
• Cynosura Prostellation (also known as the Hunting Dog Prostellation (Ursa Major, the Little Bear)
• The Autostellation (Draco, the Dragon) - by way of self-prostellation
• Reunity Prostellation (Cepheus) - by way of reunification
• Prostellation of Repute (Perseus) - by way of fame
• The Paraprostellation (Andromeda) - by way of association
• The Aesthestellation (Cassiopeia) - by way of beauty
• The Deprostellation (Cygnus, the Swan) - by way of deception
• The Restellation (Lyra, the Lyre) - by way of commemoration
• The Strenstellation (Hercules, the Kneeler) - by way of a feat of strength
• Nuptial Prostellation (Corona Borealis) - by way of a wedding celebration
• Reassembly Prostellation (Arctophylax, the Bear-Guard) - by way of pity or reparation.
• Prostellation of the Creative (Auriga, the Charioteer) - by way of creativity and invention
• Deltotonic Prostellation (Triangulum, the Triangle)
• The Aviastellation (Pegasus, the Horse) - by means of supernatural flight, a type of autostellation.
• Prostellation of the Arrow (Sagitta, the Arrow) - by means of commemoration
• Prostellation of the Eagle (Aquila, the Eagle) - by means of servitude.
• Prostellation of the Serpent-bearer (Ophiuchus, the Serpent-bearer) - by means of favour
• Prostellation of Procyon (Canis Minor, the Little Dog) - by means of fondness
• Prostellation of the Crab (Cancer, the Crab) - by means of servitude
• Prostellation of the King of the Beasts (Leo, the Lion) - by means of commemoration
• Prostellation of the Maiden (Virgo, the Maiden) - by means of autostellation to avoid injustice.
• Prostellation of the Scorpion (Scorpius, the Scorpion and The Claws) - by means of commemoration
• Prostellation of the Archer (Sagittarius, the Archer) - by means of commemoration
• Prostellation of the Capricorn (Capriconus, the Capricorn) - by means of being an accomplice.
• Prostellation of the Water-pourer (Aquarius, the Water-pourer) - by means of association and physical beauty, an example of aesthestellation.
• Prostellation of the Fishes (Pisces, the Fishes) - by means of rescue
• Prostellation of the Bull (Taurus, the Bull) - by means of servitude
• Prostellation of the Ram (Aries, the Ram) - by means of autostellation.
• Prostellation of the Twins (Gemini, the Twins) - by means of commemoration.
• Prostellation of Orion - by means of pity
• Prostellation of the Sea-monster (Cetus, the Sea-monster) - by means of the commemoration of other's feat.
• Prostellation of the Dolphin (Delphinus, the Dolphin) - by means of servitude.
• Prostellation of the Offence (Hydra, the Water-snake with Crater, the Bowl, and Corvus, the Crow) - by means to remember an offence to the gods.
• Prostellation of the Great Dog (Canis Major, the Great Dog) - by means of honour
• Prostellation of the Altar (Ara, the Altar) - by means of commemoration
• Prostellation of the Centaur and the Wolf (Centaurus, the Centaur and Lupus, the Wolf) - by means of pity for the centaur and by means of sacrifice for the wolf.
• Prostellation of the Hare (Lepus, the Hare) - by means of natural ability.
• Prostellation of the Ship (Argo) - by means of commemoration
• Prostellation of the River (Eridanus) - by means of association
• Prostellation of the Southern Fish (Piscis Austrinus, the Southern Fish) - by means of rescue.