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Bolometer - Wikipedia
A bolometer is a device for measuring the power of incident electromagnetic radiation via the heating of a material with a temperature-dependent electrical resistance.It was invented in 1878 by the American astronomer Samuel Pierpont Langley.
Absolute magnitude - Wikipedia
Absolute magnitude is a measure of the luminosity of a celestial object, on a logarithmic astronomical magnitude scale. An object's absolute magnitude is defined to be equal to the apparent magnitude that the object would have if it were viewed from a distance of exactly 10 parsecs (32.6 light-years), with no extinction (or dimming) of its light due to absorption by interstellar dust particles.
Advances in Condensed Matter Physics - Hindawi
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Magnitude | Define Magnitude at Dictionary.com
The degree of brightness of a star or other celestial body, measured on a logarithmic scale in which lower numbers mean greater brightness, such that a decrease of one unit represents an increase in brightness by a factor of 2.512.
AstroMag
Welcome to AstroMag. Here you will find a lot of interesting, relevant and up-to-date information about astronomy, celestial objects, astronomical phenomena and a wide range of other astronomy- and space-related topics.
assertion - Vertaling Engels-Nederlands - mijnwoordenboek.nl
Mijnwoordenboek.nl is een onafhankelijk privé-initiatief, gestart in 2004. Behalve voor het vertalen van woorden, kunt u bij ons ook terecht voor synoniemen, puzzelwoorden, rijmwoorden, werkwoordvervoegingen en dialecten.
Amazon.com : Pulsar Helion XQ Thermal Riflescope : Sports ...
Mobile-friendly (iOS, Android) with remote control and live The highlight of the Helion is the ability to link via Wi-Fi the device with Android and iOS based mobile units using the free mobile application Stream Vision.
Worldbuilding - Atomic Rockets
For the vast majority of science fiction worldbuilding, the major alteration to the laws of physics is allowing some species of faster-than-light propulsion for their starships. Others will add things like psionics/psychic abilities.But besides those, the rest of the laws of physics operate exactly as in real life.
Парсек — Википедия
Парсе́к (русское обозначение: пк; международное: pc) — распространённая в астрономии ...
Antares - Alpha Scorpii | Constellation Guide
Antares, also known as Alpha Scorpii or Cor Scorpii, is the brightest star in Scorpius and the 15th brightest star in the night sky. Antares is a class M red supergiant marking the heart of the celestial scorpion.