I noticed that a ship can stay guarded to a planet that is alerted even after the alert expires. how can a ship continue to guard a planet after the alert expires?

You can keep guarding a planet until you're disabled. Once, I was even on a guys planet after he left the legion.

Until you run out of gas

Which is never. You stay gaurding until someone disables you, warps you or you gaurd a defferent planet. Im not sure about the prave legion part tho.

dan has fixed the part where someone leaves and the old legionmates stayed guarding. as soon as it becomes an enemy planet, everyone from that legion gets removed.

Good. I just found it hilarious when it happened

thanks.

Disable yourself