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The brightness of a star as observed from Earth is known as its apparent magnitude. This measurement reflects how bright the star appears in the sky, which can be influenced by factors such as distance, size, and luminosity. In contrast, a star's intrinsic brightness, or true luminosity, is referred to as its absolute magnitude. These two concepts help astronomers understand both the distance to stars and their actual energy output.

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2d ago

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What is the definition of a initial observation?

An initial observation refers to the first assessment or recording of data related to a particular situation or phenomenon. It serves as a baseline for further analysis and comparison as additional information is gathered or changes occur.


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There are two basic types of observation, quantitative and qualitative. Quantitative defines while qualitative data describes. Observations such as smell, taste, and appearance are all qualitative. As opposed to quantitive which is any observation (such as size, or weight) where a definitive value can be assigned.


What are 3 basic categories of astronomical observation?

The three basic categories of astronomical observation are optical, radio, and space-based. Optical observations involve using telescopes to detect visible light; radio observations involve detecting radio waves from celestial objects; space-based observations are done using telescopes and satellites positioned outside Earth's atmosphere to observe different wavelengths of light.


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