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light minute

light minute

1 8.1
The distance light travels in one minute in empty space
  • noun
  • /laɪt ˈmɪnɪt/
  • Specialized
translation icon : minuto luz
  • Scientists estimate that some of the stars we see are over a thousand light-minutes distant.
  • forty light minutes
  • only five light minutes
  • five light minutes

Examples

  • It's about twenty-seven light-minutes out from Splendor, coming in at just over eight thousand K per second.

    Fiction book (2002)
  • If calculations are accurate, that should place you about twenty light-minutes downrange when you depart the 17171 state.

    Fiction book (2001)
  • It's all happening 12 light-minutes away... which means it takes 24 minutes for them to get the answer to any question they ask.

  • The rest were between ten and thirty light-minutes away.

    Fiction book (1998)
  • I say that time is the key element because for every light-minute away the ship is, that is one minute between the time of transmission and the time of reception.

    Fiction book (2001)
  • But they were almost two light-minutes farther away than Caroline had ventured.

    Fiction book (2001)
  • We were a good ten light-minutes away from Earth, so conversations tended to be a bit one-sided.

    Fiction book (2001)
  • "Five light-minutes," said the autopilot, its synthetic voice flat and emotionless in my mind.

    Fiction book (1999)
  • Billie had a headset on and was scanning the frequencies, listening in on messages sent across the long light-minutes of the solar system from one tiny little can of air to another.

    Fiction book (2001)
  • The sun is approximately eight light-minutes away from Earth.

How Far

light-year
  • Specialized
109 4.9
light time
  • Specialized
8.6
light hour
  • Specialized
8.1
light minute
  • Specialized
1 8.1
light second
  • Specialized
6.7

Surface Forms

light minute singular
light minutes plural

Morphology

light + minute

The meaning is directly derivable from combining 'light' (the phenomenon that travels) with 'minute' (a unit of time): it denotes how far light travels in one minute, following the same compositional pattern as 'light-year' or 'light-second'. This is a transparent, cross-linguistically regular way to form distance units based on the speed of light, so a B1 learner who knows both words can reasonably infer the intended meaning.

Etymology

Light minute comes from a simple image: imagine how far light travels in one minute. So when people say something is 'a light minute' away, they mean the distance light (or a signal) needs one minute to travel, which explains delays in messages from space.