What five basic characteristics fundamentally describe every star in the universe?
Answer
Mass, size, surface temperature, color, and brightness
Every star, irrespective of its specific type like a blue giant or red dwarf, can be fundamentally characterized using the same five physical properties. These properties are mass, which governs lifespan and core conditions; size, measured by radius or diameter; surface temperature, quantified in Kelvin; color, which is a visual proxy for temperature; and brightness, differentiated into luminosity and magnitude. Understanding these interrelated traits allows astronomers to construct a complete picture of a star's nature and its position within the cosmic lifecycle.
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