Question

The altitude of Polaris measured by an observer at the Tropic of Cancer is 1) 15° 2) 23.5° 3) 66.5° 4) 90°

Answer 1

Answer: $23.5\°$

Explanation:

The Tropic of Cancer is one of the parallels (imaginary line around the Earth parallel to the equator) located in the northern hemisphere (currently its latitude is $23.43672\° \approx 23.5\°$).

It is called "Cancer" because a long time ago, when the summer solstice occurred in the northern hemisphere (on June 20th or 21st), the Sun was in the constellation Cancer (the crab).

Now, if we were just in the North Pole, Polaris would by exactly over our heads ($90\°$ over the horizon), but as we go south and find the Tropic of Cancer parallel, Polaris altitude will be approximately at an angle of $23.5\°$ over the horizon.

Hence, the altitude of Polaris measured by an observer at the Tropic of Cancer is $23.5\°$.

Answer 2

Answer:   2) 23.5°

23.5 is the altitude pf Polaris measured by an observer at the Tropic of cancer.

Explanation:

The tropic of cancer is defined as one of the parallels which are located which are located in the northern hemisphere, which is called as cancer and there is a ling reason behind it.

The reason is once very long time ago there was an incident that occurred on the northern hemisphere on the 20th or 21st. At that moment the sun was located at the constellation Cancer which denotes the crab.