What is the celestial sphere?

A) The celestial sphere is a representation of how the entire sky looks as seen from Earth.
B) The celestial sphere is a model that shows the true locations in space of the Sun and a few thousand of the nearest stars.
C) The celestial sphere is a model of how the stars are arranged in the sky relative to our Sun, which is in the middle of the sphere.
D) It represents a belief in an Earth-centered universe, and hence is no longer considered to have any use.


A

Physics & Space Science

You might also like to view...

Gravity causes the pressure in the ocean to vary with depth

Indicate whether the statement is true or false

Physics & Space Science

Moving electric charges are surrounded by

A. electric fields B. magnetic fields C. both of these answers D. neither of these answers

Physics & Space Science

What is the product of 11.24 and 1.95 written with the correct number of significant figures?

A) 22 B) 21.9 C) 21.92 D) 21.918 E) 21.9180

Physics & Space Science

Spherical particles of density 3.0 g/cm3 are shaken in a container of water (viscosity = 1.0 × 10^-3 N•s/m3). The water is 8.0 cm deep and is allowed to stand for 30 minutes. What is the radius of the largest particles still in suspension at that time?

a. 4.5 × 10^-6 m c. 2.6 × 10^-6 m b. 9.0 × 10^-6 m d. 5.6 × 10^-6 m

Physics & Space Science