Pictures like these are made by photographing the night sky over many hours. You can see the paths of the stars moving through the sky. Because the exposure is long, the ground also looks bright even though it’s night.
何時間もかけて夜空を撮影するとこのような写真が撮れます。夜空の星の軌道が見られます。カメラの露出時間が長いから夜なのに地面が明るいです。
