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For Stars That Are Too Distant to Have Measurable Parallaxes

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True/False

For stars that are too distant to have measurable parallaxes, their distances can be estimated from the star's spectral type, luminosity class, and apparent magnitude with a procedure called spectroscopic parallax.


Definitions:

Perpetuity

A type of annuity that pays an infinite series of cash flows, with no end date.

Opportunity Cost

The financial consequence of skipping the immediate secondary choice while deciding.

Perpetuity

A financial instrument that pays a constant annual amount indefinitely, often used in valuing financial assets.

Annual Income

Annual income is the total amount of money earned over a year from employment, investments, or business operations.

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