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New astronomy presentation
- 3. Astronomy is thescientific study of stars, planets and other things in space. What is Astronomy??
- 4. How did theuniverse begin?? There are three main theories of the origin of the universe. •Big Bang theory •Steady State theory •Creation theory
- 5. •The universe hasalways been as it is today •New matter is always being produced •The universe is continuously contracting and expanding.
- 6. •Billions of yearsago the universe was packed in a small space-Primeval Atom •It explodes and threw matter in all directions •The explosion caused the formation of the galaxies.
- 7. •God created theHeavens and the Earth. •Adam and Eve •Religion
- 8. The universe ismade up of millions of Galaxies. A galaxy is a swarm of billions of stars, clouds and dust rotating around a central point.
- 9. Ourgalaxy is calledthe Milky Way Our WHOLE solar system is located right about here X
- 11. Stars go throughfour different stages in their lifetime. Stars go through four different stages in their lifetime. The four stages are: •Yellow Star •Red Giant •White Dwarf •Black Dwarf
- 12. •Medium-Hot star. Nuclear reactionoccurring •Our “Star” (sun) is a yellow star.
- 13. •As nuclear fuelis used up, star expands and turns red •Lasts for about 100 million years •When our sun is a Red Giant, it will expand and swallow up the inner planets—Mercury, Venus, Earth & Mars
- 14. •Most of thestars fuel in the outer layers is used up •Shrinks and collapses (about the size of Earth but heavier) •Gives off a white light
- 15. •Remaining fuel is usedup •Staris dead
- 17. Basic Sun Facts •TheSun is 93 million miles away from Earth. (It takes sunlight 8.5 minutes to reach Earth.) •Surface Temperature: 10,000 degrees (F) •Core Temp: 22,000,000 degrees •Corona Temp: 2,000,000 degrees HOT STUFF!!!
- 18. How Big isthe Sun??? The Sun is HUGE!!!
- 19. •Diameter of Sun:865,000 miles across. 109 Earths would fit across the Sun!!! •Circumference: 2,700,000 miles around the Sun *** 1,300,000 Earths would fit inside the Sun! WOW!!WOW!!
- 20. The Sun actuallymoves! Rotation: The Sun spins around one time every 25 days. Revolution: The Sun moves around the center of our galaxy one time every 200,000,000 years!
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- 22. Core: Center ofSun, hottest part. Nuclear fusion takes place Convection Zone: Full of hot gases. Energy released Photosphere: Source of sunlight. Visible part of Sun Prominences: Flame-like gases that travel outward Sunspots: Darker, cooler areas of Sun Solar Flares: Streams of charges atoms Corona: Outer atmosphere Chromosphere: Gases above the photosphere. Seen only during an eclipse
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- 26. The Earth istilted on it’s axis 23.5 degrees. This is why we have seasons.
- 27. Illinois X SUN We have nightand day because our planet is rotating or spinning! This is showing daytime in Illinois FYI: This is not to scale!!!
- 28. Illinois X SUN We have nightand day because our planet is rotating or spinning! This is showing nighttime in Illinois FYI: This is not to scale!!!
- 29. Sun Eart h This is alittle more to scale!!!
- 31. •The Moon isthe Earths only natural satellite. •Ancient man feared the moon- Thought it made a person crazy! •Lunar- From the moon. Lunatic- Crazy person. •1609, Galileo was the 1st person to fully examine the moon through a telescope. The Background Info.
- 32. •Distance from Earth:250,000 miles •Circumference: 7,000 miles •Diameter: 2,000 miles ** The moon is about a ¼ of the size of Earth. •Gravitational Pull: 1/6 that of the Earth. Ex) If you weight 100 pounds on the Earth, you would weigh about 16 .5 pounds on
- 33. Effects of onlya little gravity on the moon:Effects of only a little gravity on the moon: •No water •No atmosphere •No air Effects of no air:Effects of no air: No sound No wind to carry warmth to cold areas Black skies, you see stars in the daytime. Topography:Topography: Craters, mountains, smooth plains, valleys
- 34. Temperature on theMoon Bright side is 200- 300 degree s! Dark side is – 270 degrees! Below Zero!
- 35. Due to theextreme conditions on the moon astronauts must were a suit like this.
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- 37. Half of theMoon is ALWAYSHalf of the Moon is ALWAYS lit-uplit-up Sunlight
- 38. The Moon appearsto have phases because it is revolving around us. Full Moon Quarter/Half Moon New Moon Quarter/Half Moon (sunlight)
- 39. Rotation:Rotation: 27 1/3days27 1/3 days Revolution:Revolution: 27 1/3 days27 1/3 days We can only see one side of the moon from the Earth. Astonaughts had to orbit the moon in a rocket ship to see what was on the other side. The reason why we can only see one side of the moon is because the rotation and revolution are the same.
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- 41. SOLARSOLARECLIPSEECLIPSE When the Moongets between the Sun and Earth. The Moon casts a small shadow on the Earth.
- 42. LUNARLUNARECLIPSEECLIPSE When the Earthgets between the Sun and the Moon. The Earth casts a shadow on the Moon. This is how we knew the Earth was round!
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- 45. This is a pictureof the Earth from the moon.
- 46. This shows thecraters and the smoothThis shows the craters and the smooth areas on the moon.areas on the moon.
- 47. This shows thesurface of the moon Little Astronaut
- 48. And away wego!
- 49. My VeryMy Very EnlargedMotherEnlarged Mother Just Served UsJust Served Us Nine PizzasNine Pizzas
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