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  2. Sky brightness - Wikipedia

    en.wikipedia.org/wiki/Sky_brightness

    Light pollution is an ever-increasing source of sky brightness in urbanized areas. In densely populated areas that do not have stringent light pollution control, the entire night sky is regularly 5 to 50 times brighter than it would be if all lights were switched off, and very often the influence of light pollution is far greater than natural ...

  3. Miles City, MT Weather - Hourly Forecasts and Local ... - AOL

    www.aol.com/.../miles-city/miles-city-23600821

    Get the Miles City, MT local weather forecast by the hour and the next 10 days.

  4. Miles City, MT Weather - Hourly Forecasts and Local ... - AOL

    www.aol.com/.../miles-city/miles-city-2518681

    Get the Miles City, MT local weather forecast by the hour and the next 10 days. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us ...

  5. Orders of magnitude (illuminance) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude...

    Factor ()Multiple Value Item 0 0 lux 0 lux Absolute darkness 10 −4: 100 microlux 100 microlux: Starlight overcast moonless night sky [1]: 140 microlux: Venus at brightest [1]: 200 microlux

  6. Luminosity - Wikipedia

    en.wikipedia.org/wiki/Luminosity

    Luminosity is an absolute measure of radiated electromagnetic energy per unit time, and is synonymous with the radiant power emitted by a light-emitting object. [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. [3] [4]

  7. Northern lights may be visible in 17 states: Where to see ...

    www.aol.com/northern-lights-may-visible-17...

    Americans in at least 17 states will have a chance to see the northern lights Thursday night. The following continental U.S. states fall within aurora’s view line: Washington. Oregon. Idaho ...

  8. Miles City, Montana - Wikipedia

    en.wikipedia.org/wiki/Miles_City,_Montana

    The burgeoning settlement of Miles City was incorporated as a town in 1887 and the first mayor to serve was Eugene Henry "Skew" Johnson (born July 27, 1846, in Clarksville, Arkansas, died July 31, 1919, in Miles City, Montana) who served for one term. Miles City established a municipal electric power utility company around that time of 1887 and ...

  9. Luminous intensity - Wikipedia

    en.wikipedia.org/wiki/Luminous_intensity

    Light with the same radiant intensity at other wavelengths has a lower luminous intensity. The curve which represents the response of the human eye to light is a defined standard function y (λ) or V (λ) established by the International Commission on Illumination (CIE, for Commission Internationale de l'Éclairage ) and standardized in ...