Pages

Hubble's deep field image

Hubble's deep field image
Showing posts with label solar system. Show all posts
Showing posts with label solar system. Show all posts

Thursday, 16 August 2012

Venus

It's solar system time again!
Today it is Venus, the second closest and the hottest of all the planets. Venus is 108 million miles away from the sun, consequently making it take 225 Earth days to orbit around the sun and 243 days for one day. (And you thought Mercury was bad!)

The name Venus is from the Roman Goddess, Venus, Goddess of love. Venus's temperature is an average of 460 degrees, day or night. Why?  Because Venus has a lot of clouds in it's atmosphere full of greenhouse gasses, making it trap in heat.

Venus's surface is very rocky and full of volcanoes and magma streams. Lightning is not a rare thing on Venus, in fact, lightning on Venus can strike thousands of times a second! In fact, two probes have been sent to land on Venus's surface. None returned.
A mapped version of Venus's surface.


Interesting facts

  • Venus is also known is the morning star, being found always in the east of the sky (in the northern hemisphere) around four to six in the morning.
  • It is also known as the Evening star as well!
  • Venus's atmosphere is 98% Carbon Dioxide.
  • The Atmospheric pressure of Venus compared to Earth is 90 times more. 
  • Earth has a mass only 0.18 times than Venus.
  • Venus has no moons 


Good Bye everyone!

Mercury

OK, well first of all, sorry everyone I completely forgot about this Blog and now there's nothing new to read, I apologise greatly for this (Maybe I shouldn't have put the title as Universe "Daily!")

Anyway, so back to our solar system section of items- Mercury (Not to be confused with the poisonous liquid or the Greek messenger.)The planet's name was named after the Greek  messenger Mercury (based on some Greek Myths), who delivered messages to mortals and gods alike. Mercury is the planet closest to the sun, at approximately 58 million miles away from the sun.This planet only takes 88 Earth days to orbit the sun. However, one day on mercury is 59 Earth days, so there's only one and a bit days in a Mercury year.

So, you may think that because Mercury is the closest to our sun, that it is warm all the time. Wrong. Mercury can actually drop in temperature to a whopping -180 Celsius, colder than the Earth could ever reach! In the day, mercury can reach a metal melting, 400 Celsius!
A photo of Mercury taken from the
messenger probe.
Interesting Facts

  • Mercury is a rocky planet in the inner zone of the solar system (The first four planets or before the asteroid belt.) 
  • It has no moons and no atmosphere, nor an active core.
  • Astronomers found that the surface of Mercury was thicker a few million years ago, but evidence has shown that there was a huge collision with a planet that did not survive the creation of the our solar system.
  • The mass of Mercury compared to Earth is 0.06 ( 1 60th.)
Well that's it for today and hopefully I'll be updating more, good bye, my fellow readers.

Saturday, 26 November 2011

Solar system:The basics

As i want to make my blog more organised, I'm learning to do a horizontal tabs bar.

This tab is the solar system.

The basics

The solar system has the sun placed slap bang in the centre,the sun produces heat and gravity to keep the 8 planets in orbit. The 8 planets in order of closest to the sun to the farthest are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus (Don't laugh!) and Neptune. You may be wondering why Pluto isn't in there, well, in 2006, the European astronomy association decided that Pluto was one of many Dwarf planets in the solar system. Dwarf planets are small planets that don't have a clear orbit. (meaning there isn't a large amount of material in it's orbit. Between Mars and Jupiter is the asteroid belt, home to the other 3 most famous dwarf planets. They are: Eris, Makemake and Ceres. Another asteroid belt but a smaller one is in Pluto's orbit called the Keiper belt and beyond that, a bigger asteroid belt than the Keiper belt is the Oort cloud. And that is where our solar system is complete.