history of Astronomy



Rivalry
For many years the rivalry between USA and Russia built up which led to disbelief. This rivalry would later begin the space race the Russian were more successful in the early years nearly mastering the powerful force that could defy gravity and reach obitual velocity although they did send the first man , women and dog to space the Americans would prove there no joke by sending 3 men to the moon the mission that stopped the nation. The mission was successful and the information gathered has changed the word from the biggest information to the Teflon in our kitchen pans.


The solar system


Mercury
It takes mercury 58 days to rotate itself and 88 days to do a full lap of the sun once
Mercury has no moons
Gravity is one third of earths



Venus
Length of day: 116d 18h 0m
Orbital period: 225 days
Moons 0
You weigh 9/10 of your proper Wight on Venus
Seconde planet to the sun


Mars
Length one day is 1 day and 40 mins long
It takes 687 to orbit the sun
Mars has two moons photos and Deimos
Gravity is 38% of earths
Mars is the 4th planet away from the sun


Jupiter
Orbital period: 12 years
Length of day: 0d 9h 56m
Moons 67
Gravity 240% more
Jupiter red spot is 3 earths big



Saturn
Moons 62 moons
Orbital period: 29 years
Length of day: 0d 10h 42m
51 moons
Gravity 91%
The one with many rings




Urines
Orbital period: 84 years
Length of day: 0d 17h 14m
Moons 29
Gravity 89%


Neptune
Orbital period: 165 years
Length of day: 0d 16h 6m
Moons 14
GRAVITY if you weigh 100 kg you will weigh 114


suns


galaxy


Death of stars


Consolation
Consolations are pictures and images made up by stars


Gravity
Non contact forces A non-contact force is a force applied to an object by another body that is not in direct contact with it.
Force field A non-contact force is a force applied to an object by another body that is not in direct contact with it.
Gravitational field In physics, a gravitational field is a model used to explain the influence that a massive body extends into the space around itself, producing a force on another massive body
Gravity the force that attracts a body towards the centre of the earth, or towards any other physical body having mass..



How tides occur
The gravitational attraction of the moon causes the oceans to bulge out in the direction of the moon. Another bulge occurs on the opposite side, since the Earth is also being pulled toward the moon (and away from the water on the far side). Since the earth is rotating while this is happening, two tides occur each day.


Moon
It take 29 days for the moon to fully orbit the earth
And 27 days to fully rotate

An eclipse happens when the sun and moon are in line



Comets , asteroids ,craters