Star trails

58 frames used.

You can also see an aeroplane crossing the image, and a satelite (upper right).

Star trail is the line of light (opens in a new tab) recorded on a photographic (opens in a new tab) medium (opens in a new tab) when a time exposure (opens in a new tab) is made of a star in the nighttime (opens in a new tab) sky (opens in a new tab) using a camera (opens in a new tab) on a fixed (opens in a new tab) mount (opens in a new tab), caused by the rotation (opens in a new tab) of the earth (opens in a new tab) during the period of time when the camera’s shutter (opens in a new tab) is held open.