Long exposure photography captures the element of time.

Long exposure photography is a technique that uses a long duration shutter speed, capturing a single image over an extended period of the shutter on the camera being open.

Long exposure photography is often used in nighttime settings, where the lack of light forces longer exposure to be necessary. Only bright objects leave visible trails, while darker objects disappear.

A Star trail is a type of photograph that uses long exposures to capture diurnal circles, which are the apparent motion of stars around the celestial poles due to Earth’s rotation.

Stars rise in the East and Set in the West.

Northern circumpolar stars move counterclockwise around Polaris, while Southern circumpolar stars move clockwise around Sigma Octantis.

The apparent motion of stars near the celestial pole seems slower than stars closer to the celestial equator.