Ecliptic
The forces that exist on account of gravity are the cause of Earth's revolution around the Sun.
Gravity.
It is the orbit. For example, the Earth is in orbit round the Sun.
Ellipse.
1' degree per day
mercury
A year.
Seasons
The forces that exist on account of gravity are the cause of Earth's revolution around the Sun.
the revolution of earth around the sun
we call it revolution.
REVOLUTION
Gravity.
It is the orbit. For example, the Earth is in orbit round the Sun.
Yes.
the heliocentric system and the geocentric system
1' degree per day