A diagram that shows the sun at the center of the solar system
How to draw the solar system
Although this is the order in which the material appears in CAPS and in these workbooks, we recommend beginning with Chapter 3 on ‘Looking into Space’ and then moving on to the other two chapters. It makes more sense to think about how we see into space first, and then use a number of telescopes to look at the objects that have been discovered in our solar system and beyond.
In Grade 6, students studied the solar system, and in Grade 7, they studied the Sun, Earth, and Moon system. Learners should be aware that the Sun is a star at the middle of the solar system, and that the planets revolve around it. They should also understand that planets are divided into two categories: smaller rocky planets and larger gas giants. The solar system is discussed in greater depth in this chapter, as well as the physical explanations for the two types of planets. They will compare the properties of the various planets, which they will use to clarify why the Earth is currently the only planet in our solar system that is suitable for life. This chapter’s key objectives are to ensure that students understand the following:
Planets in our solar system | sun and solar system | solar
When technology and scientific knowledge have advanced, so has humanity’s understanding of the solar system. Five of the planets were discovered by the ancient Greeks, and for several centuries they were the only planets observed. Since then, scientists have discovered two more planets, as well as a slew of other solar system phenomena and several planets outside our solar system.
As shown in Figure below, the ancient Greeks believed that Earth was at the core of the universe. The geocentric model of the universe is the name given to this viewpoint. Geocentric means “based on the Planet.” The sky, or heavens, in the geocentric model is made up of a collection of spheres placed on top of one another. Each object in the sky is connected to a sphere, which rotates around the Earth. The Moon, Mercury, Venus, the Sun, Mars, Jupiter, and Saturn are among the spheres that stretch outward from Earth. Many of the stars are contained inside an outer sphere. The Greeks placed the planets closer to Earth because they seem to travel faster than the stars.
The geocentric model was effective in explaining why all stars tend to rotate once a day around Earth. The model also explained why planets move differently from each other and from the stars.
How to draw solar system planet orbits – labeled science
Earth orbits the Sun at a distance of 149.60 million kilometers (92.96 million miles), and one full orbit takes 365.256 days (1 sidereal year), during which time Earth has traveled 940 million kilometers (584 million mi).
How to draw solar system
[two] Without taking into account the effects of other solar system bodies, Earth’s orbit is an ellipse with one focus, the Earth-Sun barycenter, and a present eccentricity of 0.0167; since this value is close to zero, the orbit’s center is close to the Sun’s center, relative to the orbit’s duration.
When seen from Earth, the Sun appears to rotate 1° eastward every solar day in relation to other stars due to the planet’s orbital prograde motion (or a Sun or Moon diameter every 12 hours).
[Note 1] The average speed of the Earth’s orbit is 29.78 km/s (107,208 km/h; 66,616 mph), which is fast enough to cross the planet’s diameter in 7 minutes and the distance to the Moon in 4 hours.  Earth tends to revolve counterclockwise around the Sun from a vantage point above either the Sun or the Earth’s north pole. Both the Earth and the Sun tend to spin counterclockwise around their respective axes when viewed from the same vantage point.
Planets of our solar system | all about sun, moon, stars
We assume that planets orbit stars, but this isn’t entirely accurate. Planets and stars circle each other around their shared mass nucleus. The barycenter is the term for the popular center of mass. Astronomers will use barycenters to search for planets outside of our solar system!
The center of mass of an object can often be located right in the middle of it. You can easily locate the center of mass of a ruler, for example. Try a few different positions with your finger under the middle of a ruler. You’ll find a spot where the whole ruler can be placed on one fingertip. The ruler’s center of mass is there. The center of mass is also known as the gravity center.
However, the object’s center of mass is not always in the center. The mass of some parts of an object can be greater than that of others. The majority of the mass in a sledge hammer, for example, is concentrated on one end, so the center of mass is much closer to the heavy end.
Two or more objects orbiting each other in space have a similar center of mass. It’s the axis around which all of the objects revolve. The barycenter of the objects is at this spot. The barycenter is normally closest to the massiest object.