A star has an apparent visual magnitude of +19. Which will you need to see this star
A)naked eye
B)binoculars
C)telescope like Hubble Space Telescope
D)All of the other choices can be used.

Question

A star has an apparent visual magnitude of +19. Which will you need to see this star
A)naked eye
B)binoculars
C)telescope like Hubble Space Telescope
D)All of the other choices can be used.

Quizplus · Accepted Answer

A star with an apparent visual magnitude of +19 is extremely faint and cannot be seen with the naked eye or even binoculars. It requires a powerful telescope like the Hubble Space Telescope to see such a faint object. Therefore, the best choice is C, telescope like Hubble Space Telescope.

A Star Has an Apparent Visual Magnitude of +19