Why isn't Jupiter's gas called an atmosphere?

Question

Also...which way is Earth tilted?

Answer 1

Jupiter is a gas giant planet - it is unknown whether or not it actually has a solid at the center (although current theory states metallic hydrogen at emormous pressures).

Earth's axis is tilted 23.5 degrees. The north pole is closest to the sun on June 22, and furthest away on Dec. 22.
(On June 22, the Earth is at apogee in it's orbit around the sun - it is at it's furthest distance. On Dec. 22, it's at perigee, closest approach.)

Answer 2

Jupiter's gas is most likely not called an atmosphere because the planet is made of up mostly hot air (hydrogen and helium) and there's no particular ground to stand on. It's not a terrestrial planet (with rocky land) like Earth, Venus and Mars, and Mercury.

The Earth's tilt varies due to its daily rotation, yearly orbit and spherical shape. I don't think you can say its tilted to the left or right. It's tilt varies from 22.1 degrees to 24.5 degrees and it wobbles ever so often.

Answer 3

Jupiter's gas IS called an atmosphere. At least the outer layers are.

Earth is titled 23.5 degrees from the plane of its orbit, with the north pole pointing very nearly in the direction of the star Polaris.

Answer 4

it might have a solid core and it does have metallic hydrogen in it, but the metallic hydrogen itself is a gas or a liquid. the name gas giant is somewhat misleading it simply means that they are mostly light elements, hydrogen and helium. not that they are gaseous in nature. in fact jupiter is actually very dense, saturn isn't so dense, in fact its less dense than water is.

gas giants do have an atmosphere but you cannot tell where it ends and the "surface" (which is liquid) begins due to the pressure.

Answer 5

Why would u call the air here on earth an atmosphere???