What Is the Fundamental Difference Between Absolute and Apparent Magnitude

question 139

Multiple Choice

What is the fundamental difference between absolute and apparent magnitude of a star?

• A) The difference is +5 since absolute and apparent magnitude differ by this value by definition.
• B) Apparent magnitude depends on the star's temperature, whereas absolute magnitude is independent of temperature.
• C) Apparent magnitude depends on the size of the star, whereas absolute magnitude is independent of this parameter.
• D) Absolute magnitude is an intrinsic property of the star, whereas apparent magnitude depends on its distance from Earth.

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Definitions:

GABA Receptors

Proteins found in the brain and nervous system that respond to the neurotransmitter GABA (gamma-aminobutyric acid), playing a key role in reducing neuronal excitability throughout the nervous system.

Protein Kinase Sites

Specific regions on enzymes where the addition of a phosphate group occurs, playing a critical role in the activation or inactivation of various proteins.

Ion Channel-linked Receptor

A type of cell membrane receptor that opens or closes an ion channel in response to binding a specific molecule, influencing cell function.

G Protein-linked Receptor

G Protein-linked Receptor, also known as G-protein-coupled receptor, is a type of receptor that activates G proteins in response to external stimuli, playing a crucial role in signal transduction.