Astronomy Topic: Solar System. Definition: All space and objects within the Sun’s gravitational influence. (sun is sol, helios ). Topic 1: Our Star: the sun. The Sun is the largest object in our solar system and accounts for about 99% of the solar system’s mass.
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All space and objects within the Sun’s gravitational influence. (sun is sol, helios)
The Sun is the largest object in our solar system and accounts for about 99% of the solar system’s mass.
The mass of the Sun influences the motions of planets and other objects in the solar system.
d. They follow an 11 year cycle and coincide with the Sun’s magnetic field reversals.
5. Stars: change hydrogen into helium during thermonuclear fusion in the core.
3. Our star (sun) gives off primarily visible light has a continuous spectrum of VISIBLE LIGHT
The solar wind streams off of the Sun in all directions at speeds of about 400 km/s (about 1 million miles per hour). The source of the solar wind is the Sun's hot corona. The temperature of the corona is so high that the Sun's gravity cannot hold on to it.
The asteroid belt has thousands of space rocks that orbit between Mars and Jupiter.
The 4 gas giants are found past asteroid belt. They are large, heavy, high in hydrogen and are low density. (jovian planets)
7. Oort Cloud: theoretical farthest part of our solar system. Almost a lightyear out.