Presentation on theme: " The Sun 4 Inner planets 4 Jovian planets 8 Dwarf planets 30 objects highly likely to be dwarf planets 60 objects which are likely to be dwarf."— Presentation transcript:
The Sun 4 Inner planets 4 Jovian planets 8 Dwarf planets 30 objects highly likely to be dwarf planets 60 objects which are likely to be dwarf planets 103 objects which are probably dwarf planets 394 objects which are possibly dwarf planets
One of 100 billion stars in our galaxy The largest object in our solar system. Contains >99.8% of the mass in our solar system 70% H, 28% He Energy produced by nuclear fusion
Closest planet to the sun Named for Mercury, the Roman messenger of the Gods Similar in size to our moon Unusual orbit and rotation Iron-nickel core with silicate mantle
Named for the Goddess of Love We can see it in the sky Similar to Earth’s mass and diameter Thick atmosphere of CO 2 and Sulphuric acid Very hot 482⁰C (greenhouse effect) Spins opposite of other planets
Largest of the inner planets Atmosphere of N 2, CO 2, and O 2 Liquid water helps support life Crust, mantle, liquid core, solid core Mantle consists of Mg, Fe, SiO 4 Core consists of Fe and Ni Not too hot, not too cold!
Named after the Roman god of war Red in colour (iron oxide, Fe 2 O 3 ) ½ Earth’s diameter A day on Mars is just 40 min longer than on Earth Olympus Mons – the largest volcano in the solar system (3x height of Mt. Everest) Water on Mars (but not as much as Earth) Locked in permafrost in ice caps
Between Mars and Jupiter Total mass would equal 10% of Earth’s moon Ceres is the only dwarf planet in the inner solar system Indications of a weak atmosphere and surface water
Named after Roman king of the gods Largest planet Giant gas ball (H and He) Solid core of Fe, rock, and H 2 O 61 moons Huge storms – largest storm is the Great Red Spot (so big, all of Earth could fit in it!) Very faint rings
Named after Roman god of agriculture Large and beautiful ring system Ice with some rocky material Atmosphere of H and He Lightest of all planets 30 moons Titan is a bit larger than Mercury
Named after Greek god of the sky Coldest planet (-220C!) Blue-green colour (due to methane in atomsphere) Tilted axis; spins on its side One hemisphere almost all day, other almost all night
Named after Roman god of seas Smallest of gas planets Strong winds – up to 2000km/h Also has methane in atmosphere causes green/blue colour Atmosphere is H, He, and CH4 Large storms – also has a ‘dark spot’ 8 moons (including Tritan)
A dwarf planet is a celestial body that: Orbits the sun. Has enough mass to assume a nearly round shape. Has not cleared the neighborhood around its orbit. Is not a moon. The first five recognized dwarf planets are Ceres, Pluto, Eris, Makemake and Haumea.
8 Dwarf planets 30 objects highly likely to be dwarf planets 60 objects which are likely to be dwarf planets 103 objects which are probably dwarf planets 394 objects which are possibly dwarf planets