-178
The surface temperature on Saturn in degrees Celsius.
-145
The surface temperature on Jupiter in degrees Celsius.
2
At over a thousand times bigger than Earth, Jupiter is more than two times as large as all the other planets put together.
2.5
If you were standing on the planet Mercury, the Sun would appear 2.5 times larger than it appears on Earth.
7
The number of lunar and solar eclipses (in total) that are possible in any one year.
8.5
The number of minutes it takes for light to get from the Sun to Earth.
The number of hours a day on Jupiter (at its equator) lasts.
10
The number of seas on the Moon.
10.56
The miles-per-hour surface speed record on the Moon. It was set in a lunar rover.
11
The number of years it takes for the magnetic poles of the Sun to switch in a process known as ‘Solarmax’.
12
The number of people who have set foot on the Moon.
20
The number of seconds of fuel Apollo 11 had left when it landed.
21
Summer and winter on Uranus each last for 21 years.
88
The number of (known) constellations of stars.
142
The number of years it would take to reach the Sun if it were possible to drive through space at 75 mph (120 km/h). At that same speed it would take more than 38 million years to reach the closest stars.
The number of minutes spent by Neil Armstrong on the Moon.
225
The average wind speed on the planet Jupiter in mph.
248.4
The number of years it takes for Pluto to orbit the Sun.
462
The surface temperature on Venus in degrees Celsius.
530
The extra fuel in kilograms needed at lift-off for every additional kilogram carried on a space flight.
1,200
The average wind speed on the planet Saturn.
3,537
The number of years it would take to walk to the Sun.
25,000
The number of light years we are from the Canis Minor Dwarf Galaxy – our nearest galactic neighbour.
1,300,000
The Sun is 1,300,000 times bigger than the Earth in volume.
1,598,000
The number of miles travelled each day by the Earth.
A car travelling at 100 mph would take more than 29 million years to reach the nearest star.
330,000,000
The tail of the Great Comet of 1843 was 330 million kilometres long. (It will return in 2356.)
360,000,000
Every year the sun loses 360 million tons.
5,000,000,000
The Milky Way galaxy contains five billion stars larger than our sun.
10,000,000,000
Most stars shine for at least ten billion years.