I admitted to lethargy, travelling a long way

Usage examples of lightyear.

The sloping viewports of the ingot-shaped vessel looked out on cloud-blanketed Exodo II and its poor excuse for a moon, and some lightyears distant, the luminous dust clouds of the Spangled Veil Nebula.

The alien aura is barely detectible, four lightyears galactic northnortheast.

You said you'd astrogated a Norse spaceliner six hundred lightyears tail-first to port after her overdrive unit switched poles.

The warp drive, which is fine for transiting intragalactic distances-a few thousand lightyears at a time, say, on the longest hauls-is completely unequal to the distances involved in interga-lactic travel.

The strongly coer­cive members of the family who might be able to penetrate the Megapod Reserve tracelessly and take her and the baby home and hide them would by that time be 4000 lightyears away on Concilium Orb, attending the inauguration.

Kept alive until the moment of being dipped in boiling pepper oil, the eels would have been lightyears away and swimming in the Hocekureem Sea that same morning.