1. The Solar System

2. Sun
The sun is the centre of the solar system and every revolves a round it .
REASONS TO VISIT:
The surface of this burning ball of gas is 5500ºC, with the core reaching a sweltering 15.6 million ºC
The Sun is so large, you could fit over one million Earths inside it I
The Sun fact file
Size Diameter 1,390,000km
Mass 1.989x1030kg  
Composition Mostly hydrogen
Planets 8  
Temperature Surface: 5,800ºC Core: 15,600,000ºC
Colour Orange
Distance from Earth million km

3. Mercury Mercury is the planet closest to the sun. REASONS TO VISIT:
See the sun rise twice in one day
Experience the widest range in temperature of any planet, from a chilly -173°C at night to a sizzling 427°C during the day
MERCURY - Fact File:
Size Diameter 4880km
Mass 3.302x1023kg  
Distance from Sun million km
Atmosphere/weather Negligible atmosphere  
Moons/satellites None
Temperature 427ºC day, -173ºC night
 Colour Dark grey
Core Iron rich core about 3600km in diameter  
Orbital period 88 Earth days
Distance from Earth Max million km, Min 77.3 million km
Length of day 59 Earth days

4. Venus Venus is the second planet from the sun REASONS TO VISIT:
Experience the longest day of any planet, a staggering 243 Earth days!
The only planet where the Sun rises in the west and sets in the east
See volcanoes 100km wide and five km high
But watch out for the poisonous Venusian atmosphere - it's full of sulphuric acid
Venus fact file:
Size Diameter 12,104km
Mass 4.869x1024kg  
Distance from Sun million km
Distance from Earth Max 261 million km, Min 38 million km  
Atmosphere/weather Mainly carbon dioxide 90 times Earth pressure
Temperature 464ºC  
Length of year 225 Earth days
Length of day 243 Earth days  
Moons/satellites None
Colour White cloud tops Core Iron/nickel core

5. Earth Earth is the third planet from the sun REASONS TO VISIT :
The only planet in the Solar System where life has been confirmed
Visit the ancient ruins of human civilisations
Enjoy the best night life in the Solar System
Earth fact file :
Size Diameter 12,756km
Mass 5.97x1024kg  
Distance from Sun 150 million km
Atmosphere Mainly nitrogen with oxygen and carbon dioxide  
Moons/satellites 1
Temperature Average 22ºC  
Colour Blue and green
Core Iron/Nickel
  Length of year Earth days
Length of day 24 Earth hours

6. Mars Mars is the forth planet from the sun REASONS TO VISIT :
See the longest ever canyon system, stretching over 5,000km (3,100 miles)
Visit the Solar System's largest volcano - over 50 times bigger than those on Earth
Decide for yourself whether the Red Planet once contained life
MARS - Fact File:
Size Diameter 6794km
Mass 6.42x1023kg  
Distance from Sun 228 million km
Distance from Earth Max 401 million km, Min 55 million km  
Atmosphere/weather Thin carbon dioxide atmosphere
Temperature -80ºC to -5ºC   Length of year 687 Earth days
Length of day 24 Earth hours 37 minutes  
Moons/satellites 2
Colour Red Core Small iron core

7. Jupiter Jupiter is fifth from the sun and it the largest planet
REASONS TO VISIT:
Explore a huge world, larger than all the other eight planets put together
See the largest storm in the Solar System
Visit the largest system of moons of any planet
Jupiter fact file:
Size Diameter 142,984km
Mass 1.898x1027kg  
Distance from Sun million km
Distance from Earth Max 968 million km, Min 598 million km  
Atmosphere/weather Mainly hydrogen and helium
Temperature -48ºC at the surface20,000ºC at the core  
Length of year 4,330.6 Earth days
Length of day 10 hours 40 minutes  
Moons/satellites 63
Colour Yellow/orange
Core Iron and rock core

8. Saturn Saturn is the sixth planet and the second largest .
REASONS TO VISIT:
The most spectacular ring system of any planet in the Solar System
This planet's density is so small that it would float on water - if there were an ocean large enough!
Size Diameter 120,536km
Mass 5.68x1026kg  
Distance from Sun 1,427 million km
Distance from Earth Max 1,659 million km, Min 1,196 million km  
Atmosphere/weather Mainly hydrogen and helium
Temperature -178ºC on the surface12,000ºC at the core  
Length of year 10,756 Earth days
Length of day 10 Earth hours 14 minutes  
Moons/satellites 56
Colour Beige
Core Rocky iron core

9. Uranus Uranus is the seventh planet from the sun REASONS TO VISIT:
Visit this giant ball of gas, four times bigger than the Earth
The only planet to spin on its side
Experience 42-year nights and days
Uranus fact file:
Size Diameter 51,118km
Mass 8.683x1025kg  
Distance from Sun 2,871 million km
Distance from Earth Max 3,157 million km, Min 2,582 million km  
Atmosphere/weather Hydrogen, helium, methane
Temperature -216ºC  
Length of year 30,707 Earth days
Length of day 17 Earth hours 12 minutes  
Moons/satellites 27
Colour Blue/green
Core Rock/ice

10. Neptune Neptune is the eighth from the sun REASONS TO VISIT:
The fastest winds in the Solar System at over 2,000km per hour
The gases in Neptune's atmosphere give it a unique deep blue hue
Neptune fact file:
Size Diameter 49,528km
Mass 1.024x1026kg  
Distance from Sun 4,498 million km
Distance from Earth Max 4,687 million km, Min 4,306 million km  
Atmosphere/weather Hydrogen, helium and methane
Temperature -214ºC  
Length of year 60,190 Earth days
Length of day 16 Earth hours 7 minutes
Moons/satellites 13
Colour Deep blue
Core Rocky/ice core