A star has right ascension of 35 minutes. Which of these statements is correct about the star?

It is 35 minutes to the east of zero hours right ascension.

It is 35 minutes to the west of zero hours right ascension.

It is 35 minutes north of the celestial equator.

It is 35 minutes south of the celestial equator.

Question

Biology

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31 January, 10:27

A star has right ascension of 35 minutes. Which of these statements is correct about the star?

It is 35 minutes to the east of zero hours right ascension.

It is 35 minutes to the west of zero hours right ascension.

It is 35 minutes north of the celestial equator.

It is 35 minutes south of the celestial equator.

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Answers (1)

Know the Answer?

Geovanni Zuniga · Answer 1

Option A, It is 35 minutes to the east of zero hours right ascension.

Explanation:

The right ascension of a star basically determines position of star on the east - west co-ordinates system.

The position of star is measured on an hour circle while moving from position of the star to the celestial equator ...

So, right ascension is the angular distance between the vernal equinox eastward and the foot of that hour circle.

Hence, a right ascension of 35 minutes represents the 35 minutes to the east of zero hours right ascension.

Thus, option A is correct