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The Polaris Flare is a filamentous gas cloud in the Milky Way which is seen in the sky in the region of the constellation Ursa Minor and around the star Polaris. [ 2 ] [ 4 ] The area on the sky is estimated at 50 square degrees. [ 1 ]
Satellite flare, also known as satellite glint, is a satellite pass visible to the naked eye as a brief, bright "flare". It is caused by the reflection toward the Earth below of sunlight incident on satellite surfaces such as solar panels and antennas (e.g., synthetic aperture radar ).
Solar flares were first observed by Richard Carrington and Richard Hodgson independently on 1 September 1859 by projecting the image of the solar disk produced by an optical telescope through a broad-band filter. [50] [51] It was an extraordinarily intense white light flare, a flare emitting a high amount of light in the visual spectrum. [50]
A flare, also sometimes called a fusée, fusee, or bengala, [1] [2] bengalo [3] in several European countries, is a type of pyrotechnic that produces a bright light or intense heat without an explosion. Flares are used for distress signaling, illumination, or defensive countermeasures in civilian and military applications. Flares may be ground ...
Some stars flared very frequently: one star showed 57 events in 500 days, a rate of one every nine days. For the statistics of flares, the number of flares decreased with energy E roughly as E −2, a similar behaviour to solar flares. The duration of the flare increased with its energy, again in accordance with the solar behaviour.
A flare or decoy flare is an aerial infrared countermeasure used by an aircraft to counter an infrared homing ("heat-seeking") surface-to-air missile or air-to-air missile. Flares are commonly composed of a pyrotechnic composition based on magnesium or another hot-burning metal, with burning temperature equal to or hotter than engine exhaust.
Cauleen Smith (born September 25, 1967) is an American born filmmaker and multimedia artist. She is best known for her feature film Drylongso and her experimental works that address the African-American identity, specifically the issues facing black women today. [1]
The 24.5-inch Classical Cassegrain Telescope as it appeared in 2014.. The main 24-inch telescope is the reason for the existence of Goldendale Observatory and was the work of four amateur astronomers — M.W. McConnell, John Marshall, Don Conner and O.W. VanderVelden — who built a 24.5-inch (620 mm) Cassegrain reflecting telescope for Clark College in Vancouver, Washington, which paid for ...