Lightyear

Synonyms & similar words

Example sentences

1. It takes light about 8 minutes to travel from the Sun to Earth, which is about 1 astronomical unit.
2. Alpha Centauri, the closest star system to our Solar System, is about 1.3 parsecs away.
3. A light minute is the distance that light travels in one minute, which is about 11.16 million miles or 17.98 million kilometers.
4. In a light hour, light can travel about 670.6 million miles or 1.08 billion kilometers.
5. It would take light about 31.71 years to travel from Earth to Proxima Centauri, the closest star to our Sun.

Quotes

• ‘A light-year is a way of measuring distance,’ said Arthur. ‘It’s the distance that light can travel in one year. So, if Alpha Centauri is four light-years away, then it takes light four years to get from there to here.’ - Douglas Adams

• ‘A light-year is a unit of distance,’ he explained. ‘It’s the distance that light travels in a year. Light moves incredibly fast, so a light-year is a huge distance.’ - Neil deGrasse Tyson

• ‘I’m a scientist, and I’m interested in everything,’ he said. ‘I study stars and galaxies and black holes. I use telescopes to look at the universe. And I use light-years to measure how far away everything is.’ - Andrea Beaty