Question

A star appear on the horizon what is the true position of the star ? explain with diagram
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Answer 1

Answer:

True position of the star is below the horizon. Incident rays from star, travel through earth's atmosphere and reach observer's eye. ... Thus, it appears to come from different position, which in this case is on the horizon.

Explanation:

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Answer 2

Answer:

A star appears slightly higher than it’s actual position in the sky because of the atmospheric refraction, the star seems to be higher in the sky than the actual position. Due to the continuous refraction light from a star which is refracted as it leaves the space and enters the earth’s atmosphere therefore this air higher up in the sky is rare but that nearer the earth’s surface is denser. Moreover when the light from the star comes down the dense air bends the light more. In other words we can also say that due to the continued refraction of star light, the stars appear to be at a higher position and the human eye will see the star at that position from where it enters it in a straight line direction.

Explanation: