Wandering stars (asteres planētai). “Stars wanderers.” Planētēs, old word (from planaō), here alone in N.T. Some refer this to comets or shooting stars. See Isa 14:12 for an allusion to Babylon as the day-star who fell through pride.
For ever (eis aiōna). The rest of the relative clause exactly as in 2Pe 2:17.