How to buy Orion star coins?

Could you please elaborate on the process of acquiring Orion Star Coins? What are the necessary steps one needs to follow in order to successfully purchase these coins? Are there any specific exchanges or platforms that cater to the buying and selling of Orion Star Coins? Additionally, what are the potential risks and considerations one should be aware of before investing in these coins? Lastly, is there a minimum amount required for purchasing Orion Star Coins?