OUR EARTH AND UNIVERSE --- WHERE WE LIVE (by Charles
... million miles for earth. Our moon was most likely formed when a giant asteroid hit the earth and broke off a portion of the earth. Eventually, these pieces of earth were pulled together by gravity and also pulled into a rotating orbit by the gravitational force of the earth. Our sun is but one of th ...
... million miles for earth. Our moon was most likely formed when a giant asteroid hit the earth and broke off a portion of the earth. Eventually, these pieces of earth were pulled together by gravity and also pulled into a rotating orbit by the gravitational force of the earth. Our sun is but one of th ...
10-Chapter%25206%252..
... Thermonuclear core - the central region of Sun where fusion takes place due to high temperatures and pressures. Radiative zone - a region inside a star where energy is transported outward by the movement of photons. Convective zone - a layer inside a star where energy is transported outward by means ...
... Thermonuclear core - the central region of Sun where fusion takes place due to high temperatures and pressures. Radiative zone - a region inside a star where energy is transported outward by the movement of photons. Convective zone - a layer inside a star where energy is transported outward by means ...
Physics of Astronomy – Week 3 quiz
... 90Physics of Astronomy – Winter midterm –.Thus.2.Feb.2006 This is a CLOSED-BOOK exam to be taken in class. You have two hours, so pace yourself. SHOW YOUR WORK, to receive full credit, and include units wherever appropriate. Please circle or underline your answers, on problems with considerable calc ...
... 90Physics of Astronomy – Winter midterm –.Thus.2.Feb.2006 This is a CLOSED-BOOK exam to be taken in class. You have two hours, so pace yourself. SHOW YOUR WORK, to receive full credit, and include units wherever appropriate. Please circle or underline your answers, on problems with considerable calc ...
Review Sheet - University of Mount Union
... 14. What is retrograde motion? How did Ptolemy and Copernicus each try to explain it? 15. What are Kepler's laws? 16. How did Tycho's supernova & comet contribute to the changing of ideas about the heavens? 17. Why were Galileo's observations so important? What did he observe? 18. What motion do we ...
... 14. What is retrograde motion? How did Ptolemy and Copernicus each try to explain it? 15. What are Kepler's laws? 16. How did Tycho's supernova & comet contribute to the changing of ideas about the heavens? 17. Why were Galileo's observations so important? What did he observe? 18. What motion do we ...
Earth`s Motions
... • What’s wrong with the image on the right, which shows Ptolemy’s popular scientific theory 2000 years ago? This is called the geocentric model of the solar system. • The heliocentric model was proposed by Copernicus about five hundred years ago w/better observations • Galileo Galilei convinced many ...
... • What’s wrong with the image on the right, which shows Ptolemy’s popular scientific theory 2000 years ago? This is called the geocentric model of the solar system. • The heliocentric model was proposed by Copernicus about five hundred years ago w/better observations • Galileo Galilei convinced many ...
Kepler`s Second Law
... (the size of the orbit's ellipse tells you how much time the planet takes to complete one orbit) ...
... (the size of the orbit's ellipse tells you how much time the planet takes to complete one orbit) ...
1700_orbits
... to help in analysis of his data, but then jealously wouldn’t let him have the information. ...
... to help in analysis of his data, but then jealously wouldn’t let him have the information. ...
Some Basic Facts to Know
... For electron to move from inner orbit to one further out, it must gain exactly the energy difference between the orbits Î Absorb photon with correct energy Electron falling to lower level Î can emit photon with energy ...
... For electron to move from inner orbit to one further out, it must gain exactly the energy difference between the orbits Î Absorb photon with correct energy Electron falling to lower level Î can emit photon with energy ...
From Earth to the Galaxies
... 300,000 km/s. A light year therefore represents 300,000 km/s x 60 s/min x 60 min/h x 24 h/d x 365 d/y—in other words, nearly 10,000,000,000,000 km (ten trillion kilometres). A light year is a useful unit of measurement for representing the very large distances we find in astronomy once we journey ou ...
... 300,000 km/s. A light year therefore represents 300,000 km/s x 60 s/min x 60 min/h x 24 h/d x 365 d/y—in other words, nearly 10,000,000,000,000 km (ten trillion kilometres). A light year is a useful unit of measurement for representing the very large distances we find in astronomy once we journey ou ...
PARALLAX – IT`S SIMPLE! Abstract
... parallax angle of star Cygnus 61 was very small, some tenths of arcsecond and hard to measure. Even for the nearest star, Alpha Centauri the annual parallax is less than 1 arcsecond (less than 1/3600 of one arc degree). Until recent time the annual parallaxes of only a few hundreds of stars were kno ...
... parallax angle of star Cygnus 61 was very small, some tenths of arcsecond and hard to measure. Even for the nearest star, Alpha Centauri the annual parallax is less than 1 arcsecond (less than 1/3600 of one arc degree). Until recent time the annual parallaxes of only a few hundreds of stars were kno ...
Document
... 9. Earth is the Third planet from the sun. It is the only planet to have water on its surface, it is the only planet that has life. 10. Mars is the fourth planet from the sun, it is known as the Red Planet. 11. Jupiter is the fifth planet from the sun and is the stormiest planet in our solar system ...
... 9. Earth is the Third planet from the sun. It is the only planet to have water on its surface, it is the only planet that has life. 10. Mars is the fourth planet from the sun, it is known as the Red Planet. 11. Jupiter is the fifth planet from the sun and is the stormiest planet in our solar system ...
User guide 2 - Finding celestial treasures
... the nearest about 50% of the time.) Venus is brilliant and is easy to spot when it is not near the sun. It lies either in the west after sunset or in the east before sunrise. Like our moon, it shows phases. When the Venus approaches the Earth, it appears in this telescope as a small, but very bright ...
... the nearest about 50% of the time.) Venus is brilliant and is easy to spot when it is not near the sun. It lies either in the west after sunset or in the east before sunrise. Like our moon, it shows phases. When the Venus approaches the Earth, it appears in this telescope as a small, but very bright ...
Space - PAMS-Doyle
... • Dwarf planets are round and orbit the Sun just like the eight major planets. A dwarf planet is much smaller than a planet (smaller even than Earth's moon), but it is not a moon. Pluto is the best known of the dwarf planets ...
... • Dwarf planets are round and orbit the Sun just like the eight major planets. A dwarf planet is much smaller than a planet (smaller even than Earth's moon), but it is not a moon. Pluto is the best known of the dwarf planets ...
Introduction Worksheet 1
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
... Astronomical observations indicate that the sun is tracing a circular orbit around the center of our galaxy. The radius of orbit is 2.7 x 1020 m with period T = 200 million years. a) Calculate the total mass of the central stars. b) Assume all of these stars have the same mass as our sun. How many d ...
PowerPoint 演示文稿
... Stars are large balls of hot gas that produce light and heat through nuclear reactions. Our Sun is an average yellow star, but seems bright because it is so close. Planets are the largest objects that circle around the stars. They may be rocky, like the earth, or made mostly of gas and liquid, like ...
... Stars are large balls of hot gas that produce light and heat through nuclear reactions. Our Sun is an average yellow star, but seems bright because it is so close. Planets are the largest objects that circle around the stars. They may be rocky, like the earth, or made mostly of gas and liquid, like ...
Rotation Review questions with answers
... 1. Our sun is 2.3 x 104 light years from the center of our Milky Way galaxy and is moving roughly in a circle around that center at a speed of 250 km/s. How long does it take the Sun to make one revolution about the galactic center? B) How many revolutions has the Sun completed since it was formed a ...
... 1. Our sun is 2.3 x 104 light years from the center of our Milky Way galaxy and is moving roughly in a circle around that center at a speed of 250 km/s. How long does it take the Sun to make one revolution about the galactic center? B) How many revolutions has the Sun completed since it was formed a ...
Week 2 File
... The ancient Greeks (and others) knew of only five planets (Mercury, Venus, Mars, Jupiter and Saturn). As with the Sun and Moon, the planets follow the diurnal mo8on of the stars and also driO roun ...
... The ancient Greeks (and others) knew of only five planets (Mercury, Venus, Mars, Jupiter and Saturn). As with the Sun and Moon, the planets follow the diurnal mo8on of the stars and also driO roun ...