Zusammenfassung der Ressource
Universe
- Made of galaxies
- Group of stars (Hydrogen and helium)
- Nebuale: Dust and gases
- Solar system
- Heliocentric . Nicolaus Copernicus
- Geocentric. Greeks
- Planets
- Mercury: 0 Satelits. None atmosphere
- Venus: o satelits. very dense atmosphere, mainly carbon dioxide.
- Earth:satellites the moon,atmosphere mainly nitrogen and oxygen.
- The movements of the Earth
- Rotation:24 hours
- Revolution: 365 days. Seasons
- Equinoxes:March 21;September 23.
- Solstices December 21; June 21.
- Hemisphere north Spain;hemisphere south south America
- Moon: new Moon, Last quarter,Full Moon and First quarter.
- Eclipses
- Lunar eclipse.
- Solar eclipse
- Mars: 2 satelits 2 atmosphere very thin mainly carbon dioxide
- Rocky planets
- Jupiter.63 satellites.It is the largest planet in the solar system
- Jupiter:61 satellites its rings are made of ice, dust and rock fragments.
- Uranus: 27 satellites. Rotational axis is almost horizontal.
- gas giants
- Neptune: 14 satellites. It is the most distant planet from the Sun
- Origin: Big bang Theory
- Units:
- AU: 150 million km
- Light year: 300000 km per second