I'm not sure where to post this so I thought I would try here. Please let me know if there is a better place for this. I am creating a series of stories and there is some minor connections to nomenclature and myths of ancient Greece. This is a science fiction space series so the title I was looking to use was something along the lines of Stellar Era (age of space/stars). Based on some what I could find that dealt with ancient Greek, I came to: Aera Astrum. I hope to make this proper, so is this correct or is there a proper way to phrase this?