What is "seeing"?
A)a measure of the quality of the telescope's optics
B)a measure of the transparency of the scope's objective lens
C)a measurement of the sharpness of vision of the astronomer's eyes
D)a measurement of the image quality due to air stability
E)a measurement of clarity and absence of clouds

Question

Quizplus · Accepted Answer

Seeing refers to the measurement of image quality due to air stability. It is a measure of how much the Earth's atmosphere distorts the image of an object viewed through a telescope. Good seeing conditions result in a clear, stable image, while poor seeing conditions result in a blurry or distorted image. "Seeing" refers to the image quality of astronomical objects due to air stability. It is affected by atmospheric turbulence, which can cause the image to appear fuzzy or distorted. Therefore, option D is the correct answer. The other options are not related to the term "seeing" in astronomy.

What Is "Seeing