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Polaris is the brightest star in the constellation of Ursa Minor (upper right). Big Dipper and Ursa Minor in relation to Polaris. A view of Polaris in a small telescope. Polaris B is separated by 18 arc seconds from the primary star, Polaris A. A 4 day time lapse of Polaris illustrating its Cepheid type variability.
Pole star. A pole star is a visible star that is approximately aligned with the axis of rotation of an astronomical body; that is, a star whose apparent position is close to one of the celestial poles. On Earth, a pole star would lie directly overhead when viewed from the North or the South Pole .
Many star names are, in origin, descriptive of the part in the constellation they are found in; thus Phecda, a corruption of Arabic فخذ الدب ( fakhdh ad-dubb, 'thigh of the bear'). Only a handful of the brightest stars have individual proper names not depending on their asterism; so Sirius ('the scorcher'), Antares ('rival of Ares ', i.e ...
Polar night is a phenomenon in the northernmost and southernmost regions of Earth where night lasts for more than 24 hours. This occurs only inside the polar circles. [1] The opposite phenomenon, polar day, or midnight sun, occurs when the Sun remains above the horizon for more than 24 hours. "Night" is understood as the center of the Sun being ...
Night skies were lit up by the northern lights Friday in locations the auroras don't normally shine as a severe solar storm supercharged the phenomenon. Night skies were lit up by the northern ...
The Sun is the brightest star as viewed from Earth, at −26.78 mag. The second brightest is Sirius at −1.46 mag. For comparison, the brightest non-stellar objects in the Solar System have maximum brightnesses of: the Moon −12.7 mag [1] Venus −4.92 mag. Jupiter −2.94 mag. Mars −2.94 mag.
Northstar California (previously Northstar-at-Tahoe) is a mountain resort in the western United States, located in Placer County, California, near the northwest shore of Lake Tahoe . Approximately 200 miles (320 km) from the San Francisco Bay Area, the 3,170-acre (12.8 km 2) resort features 2,280 ft (690 m) vertical drop of alpine terrain ...
"Excitedly, I stared out my window before a ball of blue light came into view out of the sky with a trail of the same blue light, it was beautiful. And as quickly as it appeared, it fizzled out ...