Friday 15 January 2010

Mercury


The closest planet to the Sun,and far smaller than Earth,Mercury has blistering hot days,but freezing cold nights. The nights get cold because Mercury has no atnosphere to trap the Suns heat.Mercury has a very short year because it only takes 88 days to orbit the Sun and it spins very slowly taking 59 days to spin once on its axis. If people moved there,they would be four times older. The during the day the Sun bakes it's surface up to 428 degrese celcius.At night it falls to -180 degrese celcius.


How far is Mercury from the sun and Earth


Mercury's elliptical orbit lies a considerable distance from the sun: 46 million kilometers away when closest; 70 million kilometers away at its furthest point.The distance beetween Mercury and Earth varies beetween 77 million kilometers and 222 million kilometers. On average, this is roughly three times the distance beetween Mercury and the sun.Mercury is so close to the sun that it can only be viewd from earth at dusk shortly before or shortly after sunset.

1 comment: