a convenient method of quantifying a star\'s color by comparing its apparent bri

Question

a convenient method of quantifying a star's color by comparing its apparent brightness as measured through different filters commonly used scale to compress a large range of data into more manageable form a distance scale used for the stars the apparent magnitude a star would have if it were placed at a standard distance of 10 parsecs from earth difference between the apparent and absolute magnitude of an object the apparent motion of a relatively close object to a more distant background as the location of the observer changes the brightness that a star appears to have a measurement of angle, useful for very small angles parsec arcsec apparent absolute logarithmic color-index parallax distance modulus

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ANSWER. I

Matching.

1. (f) color-index: a convenient method of quantifying a star’s color by comparing its apparent brightness as measured through different filters.

2. (e) Logarithmic: Commonly used scale to compress a large range of data into more manageable form.
3. (a) Parsec a distance scale used for the stars

4.(d) Absolute The apparent magnitude of a star would have if it were placed at a standard distance of 10 parsecs from earth.

5. (h) Distance modulus: difference between the apparent and absolute magnitude of an object.

6. (g) Parallax: The apparent motion of a relatively close object to a distant background as the location of the observer changes.

7. (C) Apparent: the brightness a star appears to have

8. (b) Arcsec a measurement of angle ,useful for very small angles

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