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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. In astronomy, luminosity is the total amount of electromagnetic energy emitted per unit of time by a star, galaxy, or other luminous astronomical object.
Measurement, Stellar luminosity & Radio luminosity
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distance magnitude measure stars star apparent brightness power absolute object temperature displaystyle measured energy 10 total used astronomy stellar radio
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Luminosity | is a | absolute measure of radiated electromagnetic energy per unit time | 0.90 | text |
| Luminosity | is a | total amount of electromagnetic energy emitted per unit of time by a star | 0.90 | text |
| Luminosity | is a | degree of interstellar extinction that is present | 0.90 | text |
| Luminosity | is a | standard | 0.90 | text |
| the AB system are defined in terms of a spectral flux density | instance of | while others | 0.80 | text |
| Luminosity | measured by | When | 0.60 | section |
| Luminosity | measured by | SI | 0.60 | section |
| Luminosity | measured by | Sun | 0.60 | section |
| Luminosity | measured by | The IAU | 0.60 | section |
| Luminosity | measured by | However | 0.60 | section |
| Luminosity | measured by | In | 0.60 | section |
| Luminosity | measured by | Wolf-Rayet | 0.60 | section |
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