3. OUR SOLAR SYSTEM
• Formed from the force of an exploding star,
our solar system is a neighborhood in space.
Held in place by the enormous gravitational
pull of the sun are nine planets, over sixty
moons and billions of asteroids and comets.
These stretch over a distance of 7.6 trillion
kilometers.
4. Fun facts
• Diameter:1.6 light years
• Age:4.6 billion years
• Dwarf planet:1
• Time taken to orbit the center of milky way:
220 million years
• Star: the sun
• Total number of planets:8
• Total number of moons:63
• Future life:5 billion years
10. HIDDEN
PLANET
Mercury is a very
difficult planet to
explore. It is normally
blocked by the sun’s
light when seen from
earth. Even the
Hubble space
telescope cannot
observe the planet
because the sun’s rays
can damage it’s
equipment.
21. Fun facts
• Diameter: 142,984km
• Distance from sun:779 million km
• Surface gravity:2.36 x earth
• Length of orbit: 4333 earth days
• Length of day:10 earth hours
• Mass:317.9 x earth
• Density (water=1):1.33
• Moons:61
• Rings:3
24. Saturn fun facts
• Diameter:120,536km
• Distance from sun:1426 million km(886 million
miles)
• Gravity:0.92 x earth
• Orbit time : 10,760 earth days
• Day:10 hours
• Mass: 95.2 x earth
• Density(water=1):0.69
• Moons:31
• Rings:7
26. Fun facts
• Diameter:51,166km
• Distance from sun:2869 million km
• Gravity:0.89 x earth
• Orbital period:30,065 earth days
• Day:18 hours
• Mass 14.5 x earth
• Density (water=1):1.27
• Moons :21
• Rings:11
