Question

Explain the movement of Earth around the Sun with the help of a diagram

Answer 1

You'd say the Earth is moving in a heliocentric orbit, just like anything else in our Solar System.  "Helio" is a prefix that refers to the sun.  If you said "geocentric orbit", you'd be referring to satellites orbiting the Earth, including the Moon.

You could also specify it to be an elliptical orbit, if you wanted to describe the shape.  And from the Sun's north pole, you could describe it as a counter-clockwise orbit.

Also... although Earth's orbit is commonly referred to as heliocentric, it's not exactly heliocentric.  It's orbiting around the barycenter (center of mass) of the Solar System, which is "pretty close".  The farthest the barycenter can be from the Sun is about 800,000 km, and that's if all the planets were lined up.

And!  The Earth's orbit is not exactly lined up with the Sun's equator.  It has an orbital "inclination" of a bit over 7 degrees (7.155).  And.. the ends of the ellipse are at slightly different distances from the sun, one being about 152 million kilometers around July and 147 million kilometers around January.

So there's that too.

So you could refer to the motion as:

Elliptical, counter-clockwise orbit around the Solar System's barycenter, at a 7.155 degree inclination from the Sun's equator, shifted a couple million kilometers toward ..umm.. 9 o'clock.

Or you can just call it the Earth's orbit, or "revolution" (as opposed to rotation, which is the Earth spinning), and people will get the idea.

Answer 2

$\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W} \purple{E}\orange{R᭄}}}}$

You'd say the Earth is moving in a heliocentric orbit, just like anything else in our Solar System.  "Helio" is a prefix that refers to the sun.  If you said "geocentric orbit", you'd be referring to satellites orbiting the Earth, including the Moon.

You could also specify it to be an elliptical orbit, if you wanted to describe the shape.  And from the Sun's north pole, you could describe it as a counter-clockwise orbit.

Also... although Earth's orbit is commonly referred to as heliocentric, it's not exactly heliocentric.  It's orbiting around the barycenter (center of mass) of the Solar System, which is "pretty close".  The farthest the barycenter can be from the Sun is about 800,000 km, and that's if all the planets were lined up.

And!  The Earth's orbit is not exactly lined up with the Sun's equator.  It has an orbital "inclination" of a bit over 7 degrees (7.155).  And.. the ends of the ellipse are at slightly different distances from the sun, one being about 152 million kilometers around July and 147 million kilometers around January.

So there's that too.

So you could refer to the motion as:

Elliptical, counter-clockwise orbit around the Solar System's barycenter, at a 7.155 degree inclination from the Sun's equator, shifted a couple million kilometers toward ..umm.. 9 o'clock.

Or you can just call it the Earth's orbit, or "revolution" (as opposed to rotation, which is the Earth spinning), and people will get the idea.

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