Answer: B
Explanation:
A galaxy is a system of solar systems and other stars. Galaxies, like solar systems, are held together by gravity. In galaxies, the solar systems are separated by vast sections of mostly empty space. The galaxy that contains the Earth and its solar system is called the Milky Way.
Answer:
<u>Geocentric Model</u>: - this model is Earth Centered
-Retrograde motion is explained by epicycles
<u>Heliocentric Model</u>: - This model is Sun Centered
-Retrograde motion is explained by the orbital speeds of planets
<u>Both models</u>:- Epicycles and deferents help explain planetary motion
-Planets move in circular orbits and with uniform motion
-The brightness of a planet increases when the planet is closest to Earth
Explanation:
Retrograde motion is an apparent change in the movement of the planet through the sky. Ptolemy's model of the solar systems was geocentric, where the Sun, Moon, planets and start all orbit the Earth in perfectly circular orbits. However this perfectly circular orbits around the Earth did not explain the occasional retrograde motion of the planets. In the Copernicus' heliocentric model, retrograde motion of planets is naturally explained. The explanation for retrograde motion in a heliocentric model is that retrograde occurs roughly when a faster moving planet catches up to and passes a slower moving planet.
Answer:
it wil be 45 becaue 100 and 50 divide is 45
Explanation:
Answer:
Both have similar elements in their core.
Venus and Earth are nearly the same size, have very similar masses, and have almost identical compositions.
Explanation:
Why the other answers are incorrect:
Both have a magnetic field.
This is incorrect because Venus lacks a magnetic field.
Both have only one satellite.
Earth has one moon, but Venus does not have any.
Both rotate on their axis at the same rate.
Each planet in the Solar System rotate at a different rate. Therefore, this answer choice is wrong.
