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 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.

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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:

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2  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

3  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

4  Closest planet to the sun (0.4 AU), an inner planet  Terrestrial  Named for Mercury, the Roman messenger of the Gods  Similar in size to our moon (0.4x the size of Earth)  Iron-nickel core with silicate mantle

5  Takes 59 days to spin on its axis  88 days to orbit the sun  Gravity is 0.38x that of Earth’s  HOT days and COLD nights (-183C – 427C)  Atmosphere of sodium and helium  No moons known

6  Inner planet, 0.7 AU from sun  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, nitrogen and sulphuric acid  Very hot 480⁰C (runaway greenhouse effect)  Spins opposite of other planets, takes 243 days to spin

7  One year = 224 Earth days  Gravity is 0.9x that of Earth’s  No known moons

8  Largest of the inner planets  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!

9  An inner planet, 1.0 AU from the sun  Takes 23h, 56 min to spin on its axis  Takes days to orbit the sun  Average temperature is 14C  Atmosphere is 77% nitrogen, 21% oxygen  One moon – “the moon”

10  Named after the Roman god of war  Red in colour (iron oxide, Fe 2 O 3 )  Atmosphere of Carbon Dioxide (95.3%) and Argon  0.5 x Earth’s diameter  1.5 AU from the sun (inner planet)  A day on Mars is just a few minutes longer than on Earth (24 hours, 37 min)

11  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  2 moons: phobos and deimos  Average Temp: -63C  Takes 687 days to orbit the sun  Gravity 0.38 of Earth’s

12  Between Mars and Jupiter  Total mass would equal 10% of Earth’s moon  Ceres is the only dwarf planet in the inner solar system

13  Named after Roman king of the gods  5.2 AU from the Sun (outer planet)  Largest planet (11.2x the size of Earth)  Giant gas ball (atmosphere of H and He)  Solid core of Fe, rock, and H 2 O

14  66 moons discovered  Huge storms – largest storm is the Great Red Spot (so big, all of Earth could fit in it!)  Very faint rings  Average temp: -130C  Gravity: 2.64 x Earth’s  1 day = 9h, 55 min  1 year = years

15  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  62 moons discovered  Titan is a bit larger than Mercury

16  9.6 AU from sun  9.5 x the size of Earth  1 day = 10 hours, 39 min  1 year = 29 years  Gravity is 1.16x Earth’s  Average Temp: -130C

17  Named after Greek god of the sky  Coldest planet (-200C!)  Blue-green colour ( Hydrogen, Helium and Methane atmosphere)  Tilted axis; spins on its side  One hemisphere almost all day, other almost all night

18  27 known moons  Outer planet, 19.2 AU from sun  4x the size of Earth  1 day = 17h, 14min  1 year = 84 years  Gravity = 1.11x Earth’s

19  Named after Roman god of seas  Smallest of gas planets (3.9x Earth)  Strong winds – up to 2000km/h  Also has methane in atmosphere  causes green/blue colour  Atmosphere is H, He, and methane (CH 4 )  Large storms – also has a ‘dark spot’  13 moons (including Tritan)

20  30.0 AU away from the sun (farthest ‘planet’) (outer planet)  1 day = 16h, 7 min  1 year = years  Gravity is 1.21x that on Earth  Cold! About -200C

21  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.

22  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


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