Astral is a free open source project derived from NovaCoin, with the goal of providing a long-term energy-efficient scrypt-based crypto-currency. Built on the foundation of Bitcoin and NovaCoin, innovations such as proof-of-stake help further advance the field of crypto-currency. The software automatically finds other nodes to connect to. You can enable Universal Plug and Play (UPnP) with your router/firewall or forward port 12788 (TCP) to your computer so you can receive incoming connections. Astral works without incoming connections, but allowing incoming connections helps the Astral network.