11/7/2023 0 Comments Luminous meaning![]() The Cow must be a new type of extremely energetic, explosive event.Īt sunrise everything is luminous but not clear." It is those we live with and love and should know who elude us." You can love completely without complete understanding. Depending on context, the power can be either the radiant flux of the source's output, or it can be the total power (electric power, chemical energy. It is the ratio of luminous flux to power, measured in lumens per watt in the International System of Units (SI). ![]() This was an incredibly luminous event, brighter than almost any supernova we've ever seen before, the Cow also appeared and faded away very quickly : so quickly that existing supernova models can't properly explain The Cow. Luminous efficacy is a measure of how well a light source produces visible light. /lumnsti/ noun singular, uncountable The moon was shining enough to give a ghostly luminosity to the buildings that crowded both sides of the narrow street. ![]() 3 4 In SI units, luminosity is measured in. 1 2 In astronomy, luminosity is the total amount of electromagnetic energy emitted per unit of time by a star, galaxy, or other astronomical objects. But in over a century-and-a-half, this has not happened to Betelgeuse. Luminosity is an absolute measure of radiated electromagnetic power (light), the radiant power emitted by a light-emitting object over time. Luminous beings are we, not this crude matter.Īll stars are losing material to the interstellar medium, and we don't know how this material is lost, we know that other hotter luminous stars lose material and it quickly turns to dust making the star appear much fainter. You can talk about the luminosity of someones skin when it has a healthy glow. technical For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun. The fluorescent chemical is a kind of chalky white coating on the inside of the thin glass tubes. The luminosity of a star or sun is how bright it is. Photo: An energy-saving compact fluorescent lamp (CFL). Who can believe that there is no soul behind those luminous eyes! When we talk about 'luminous' watches and paint, what we really mean is phosphorescence, which is very similar to fluorescence: the process by which energy-saving lamps make light.
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