Why do some stars offer buightier then others
Answer (1)
Stars appear brighter or dimmer due to a combination of factors: - Intrinsic Brightness (Luminosity): This refers to the total amount of light a star emits. Larger and hotter stars have much higher luminosity than smaller, cooler stars. This is the fundamental reason for differences in brightness. - Distance: The distance between the star and Earth significantly impacts its apparent brightness. Even a very luminous star will appear dim if it's extremely far away. The inverse square law governs this relationship: brightness diminishes with the square of the distance. - Interstellar Dust and Gas: Dust and gas clouds in space can absorb and scatter starlight, reducing the amount that reaches Earth. This effect is more pronounced for stars located behind denser regions of interstellar matter. - Composition: The chemical composition of a star can subtly affect its emitted light. However, this is usually a less significant factor compared to luminosity and distance.
