That means that when we look at that star, the light entering our eye left the star 4.3 years earlier and during all that time was traveling through space at a velocity of 186,282 miles a second [299,792 km / ​ sec].
इसमें अंतर्ग्रस्त फ़ासले की कल्पना करना हमारी मानसिक योग्यता से परे है ।