Astronomical distances are too large to be measured in kilometers, so light-years are used instead. One light-year is the distance that a light ray travels in one year. At a speed of 300,000 kilometers (186,000 miles) per second, it amounts to 9.46 million million kilometers (5.87 million million miles).
Q: Can we really grasp such an immense size?
With the naked eye we can see three more, namely the two Clouds of Magellan near the southern celestial pole, and the Andromeda galaxy in the constellation of the same name. The Andromeda galaxy is thought to be 2.25 million light-years from us.
Isaiah tells us that God’s thoughts and ways are far higher than ours (Isaiah 55:8–9). Not only are His thoughts higher than ours, they are also much faster. He can count the stars! And He has done exactly that; He even gave each one a name: “He determines the number of the stars; He gives to all of them their names.” (Psalm 147:4)." CMI
