KnowraSolar constantLinked fromLinked fromThe 8 pages that link to Solar constant, each with the reason it gives.All 8Broader topic 3Related 5Solar luminosityRelated: Its measured value, combined with Earth–Sun distance, provides an independent estimate of solar luminosity.Planetary equilibrium temperatureRelated: It provides the reference stellar energy flux for Earth's equilibrium-temperature calculation.Solar spectrumRelated: It summarizes the solar energy arriving across the spectrum.SunlightRelated: It quantifies incoming sunlight before atmospheric filtering.Samuel LangleyRelated: Langley’s measurements of solar radiation helped establish this quantity and its variations.