Astralism

Astralism is a belief set developed off of Christianity and Ancient Greek. It's becoming more widely practiced as people spend more time in transit, unable to get to churches or temples. Astralism uses the "Constellar Cross" as its symbol, as it's easy to draw and recognizable.

Beliefs
They believes devils and angels exist. Devils live in the darkness between planets, where no starlight reaches. They cause dragons to fall asleep and veer off course, and they pull human riders from their dragons and get them lost in the endless void of space.

Angels are the stars, infinite in the endless void. They beat away the devils, fighting an infinite war that can't be won, only lost. They are kind and they are warm, but looking directly at them will make you blind.

They have combined the idea of constellations with her belief in angels, to form a pantheon of star-angels. Singular stars are angels, but constellations are more powerful.

The power of the constellation depends on the number of stars it contains. Seraphim are the most powerful constellations, followed by Cherubim, Thrones, Dominions, Virtues, Powers, Principalities, and Archangels.

All of the angels and constellations serve God, working to exercise His will in different ways. A prayer made to a star is acted upon at the will of God, the angel only executes it. But angels have their ways of making their cases to God, and having an angel on your side may help your prayer.