What is another word for solar constant?
Pronunciation: [sˈə͡ʊlə kˈɒnstənt] (IPA) 
The term "solar constant" refers to the amount of solar radiation that reaches the Earth's atmosphere per unit area. There are some synonyms that can be used instead of the term "solar constant", such as "solar irradiance", "solar radiation flux" and "solar energy density". Other synonyms include "solar insolation", "solar radiance", and "solar output". These terms are often used interchangeably depending on the context and application. For instance, "solar insolation" is more commonly used to refer to the amount of solar radiation received within a given time frame, while "solar irradiance" is used to describe the amount of solar radiation received at a particular location.
