The Declination of a Star in the Sky Is Defined

question 58

Multiple Choice

The declination of a star in the sky is defined as the angle between the

• A) position of the center of the Galaxy and the star, measured along the galactic plane.
• B) celestial equator and the star, measured along a great circle passing through both celestial poles.
• C) Sun and the star, measured along the ecliptic plane.
• D) great circle passing through the star and both celestial poles and the equivalent great circle through the vernal equinox, measured along the celestial equator.

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Definitions:

Returns to Scale

A concept in economics that describes how the increase in inputs affects the level of output of a production process.

Economies of Scale

The cost advantages that enterprises obtain due to their scale of operation, with costs per unit of output generally decreasing with increasing scale.

Diseconomies of Scale

A situation in which a business's costs per unit increase as the scale of operation expands, opposite to economies of scale.

Average Total Cost

The total cost of production divided by the quantity of output produced, representing the cost per unit of output.