Convert Light Hours to Light Seconds
Convert Light Hours (lh) to Light Seconds (ls) instantly and accurately.
Conversion Formula
ls = lh × 3600
About Light Hours
A light hour (lh) is the distance light travels in one hour through a vacuum, approximately 1.08 billion kilometers. Jupiter is about 0.72 light hours from the Sun, while Saturn orbits at roughly 1.3 light hours. This unit is useful for expressing distances to the outer planets and understanding communication delays with spacecraft. A radio signal to a probe near Jupiter takes about 43 minutes to arrive, representing the vast scales even within our solar system. Pluto at its farthest reaches about 5.5 light hours from the Sun.
About Light Seconds
A light second (ls) is the distance light travels in one second through a vacuum, exactly 299,792,458 meters. This represents one of the fundamental constants in physics - the speed of light. For perspective, light takes about 1.3 seconds to travel from Earth to the Moon, and 8.3 minutes (500 light seconds) to reach us from the Sun. This unit is crucial in astronomy, telecommunications (satellite delays), and physics experiments, helping us understand the finite speed of light and its implications for communication and observation.
Quick Reference Table
| Light Hours (lh) | Light Seconds (ls) |
|---|---|
| 1 lh | 3600 ls |
| 2 lh | 7200 ls |
| 5 lh | 18000 ls |
| 10 lh | 36000 ls |
| 25 lh | 90000 ls |
| 50 lh | 180000 ls |
| 100 lh | 360000 ls |