WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
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Star trail
Videos
A star trail is a type of photograph that uses long exposure times to capture diurnal circles, the apparent motion of stars in the night sky due to Earth's rotation. A star-trail photograph shows indi
All the stars in the night sky appear to circle the celestial pole (the south pole in this photo). Over a period of several hours, this apparent motio
All the stars in the night sky appear to circle the celestial pole (the south pole in this photo). Over a period of several hours, this apparent motion leaves star trails.
Star trail photographed from Mount Wellington, Tasmania. Aurora australis visible in the background.
Star trail photographed from Mount Wellington, Tasmania. Aurora australis visible in the background.
Star trail photography on salt lake in Lut desert in Iran
Star trail photography on salt lake in Lut desert in Iran
Star trails photographed from the International Space Station in low Earth orbit at an angle that makes the trails almost vertical instead of circular
Star trails photographed from the International Space Station in low Earth orbit at an angle that makes the trails almost vertical instead of circular.
Polaris
Videos
Polaris is a yellow supergiant star in the northern circumpolar constellation of Ursa Minor. It is designated α Ursae Minoris and is commonly called the North Star. With an apparent magnitude that flu
Star trail
…in the Northern Hemisphere, aiming the camera northward creates an image with concentric circular arcs centered on the north celestial pole (very near Polaris). For those in the Southern Hemisphere, this same effect is achieved by aiming the camera southward. In this case, the arc streaks are centered on the…
Polaris components as seen by the Hubble Space Telescope
Polaris components as seen by the Hubble Space Telescope
A typical star trail photograph taken in the Northern Hemisphere, with Polaris in the center
A typical star trail photograph taken in the Northern Hemisphere, with Polaris in the center
Polaris azimuths vis clock face analogy.
Polaris azimuths vis clock face analogy.
Artist's conception showing supergiant Polaris Aa, dwarf Polaris Ab, and the distant dwarf companion Polaris B
Artist's conception showing supergiant Polaris Aa, dwarf Polaris Ab, and the distant dwarf companion Polaris B