α Centauri: a double star - University of Canterbury
... Can we send a space probe to α Centauri to confirm the existence of a planet? Answer: Yes, may be! • If we can travel at 0.1c (30,000 km/s), the journey would take about 50 years. • To reach that speed, we need to accelerate at 0.04 m/s2 for 25 years, and then decelerate for another 25 yr. • To do ...
... Can we send a space probe to α Centauri to confirm the existence of a planet? Answer: Yes, may be! • If we can travel at 0.1c (30,000 km/s), the journey would take about 50 years. • To reach that speed, we need to accelerate at 0.04 m/s2 for 25 years, and then decelerate for another 25 yr. • To do ...
PT`s IAS Academy
... as double (or more) by other means. Research over the last two centuries suggests that half or more of visible stars are part of multiple star systems. In order to explain the causes due to which planets have been thrown to such great distances from the sun, Prof. H.N. Ru ...
... as double (or more) by other means. Research over the last two centuries suggests that half or more of visible stars are part of multiple star systems. In order to explain the causes due to which planets have been thrown to such great distances from the sun, Prof. H.N. Ru ...
Midterm 1 Short Answer (+1-3pts) Record the answers to these
... Some of you mentioned that the ozone allowed photosynthesis to occur so that oxygen can be created. It is the other way around, photosynthesis, which produced oxygen allowed the ozone layer to exist since ozone is made of three oxygen atoms. Some of you mentioned that it allowed life to evolve. This ...
... Some of you mentioned that the ozone allowed photosynthesis to occur so that oxygen can be created. It is the other way around, photosynthesis, which produced oxygen allowed the ozone layer to exist since ozone is made of three oxygen atoms. Some of you mentioned that it allowed life to evolve. This ...
No Slide Title
... A brief history of extra-solar planets • In the 16th century the Italian philosopher Giordano Bruno said that the fixed stars are really suns like our own, with planets going round them • 1991 Radio astronomers Alex Wolszczan & Dale Frail discovered planets around a pulsar PSR1257+12 – Variations i ...
... A brief history of extra-solar planets • In the 16th century the Italian philosopher Giordano Bruno said that the fixed stars are really suns like our own, with planets going round them • 1991 Radio astronomers Alex Wolszczan & Dale Frail discovered planets around a pulsar PSR1257+12 – Variations i ...
Lecture 3, PPT version
... of the North pole with respect to the sky. This “minor motion” is very slow (takes 26,000 years to complete), but is important to navigation by the stars! Right now, the North Star is “Polaris” (the tail star of the Little Dipper). Five thousand years ago the North Star was Thuban, and in 14,000 it ...
... of the North pole with respect to the sky. This “minor motion” is very slow (takes 26,000 years to complete), but is important to navigation by the stars! Right now, the North Star is “Polaris” (the tail star of the Little Dipper). Five thousand years ago the North Star was Thuban, and in 14,000 it ...
tail can extend millions of kilometers into space
... • Large rocky bodies (objects) that orbit the sun, usually found between the orbits of Mars and Jupiter. This region is called the asteroid belt. ...
... • Large rocky bodies (objects) that orbit the sun, usually found between the orbits of Mars and Jupiter. This region is called the asteroid belt. ...
Big idea # 5 * Earth in space in time
... SC.8.E.5.1 Recognize that there are enormous distances between objects in space and apply our knowledge of light and space travel to understand this distance. SC.8.E.5.2 Recognize that the universe contains many billions of galaxies and that each galaxy contains many billions of stars. SC.8.E.5.3 Di ...
... SC.8.E.5.1 Recognize that there are enormous distances between objects in space and apply our knowledge of light and space travel to understand this distance. SC.8.E.5.2 Recognize that the universe contains many billions of galaxies and that each galaxy contains many billions of stars. SC.8.E.5.3 Di ...
File
... 3. What are two important characteristics of the atmosphere? Air Pressure – the weight of the air above a given point .As altitude increases, pressure decreases. Temperature – the average kinetic energy of the individual particles in a sample of matter (how fast the atoms are moving) 4. What is ...
... 3. What are two important characteristics of the atmosphere? Air Pressure – the weight of the air above a given point .As altitude increases, pressure decreases. Temperature – the average kinetic energy of the individual particles in a sample of matter (how fast the atoms are moving) 4. What is ...
![Macmillan Natural and Social Science 1 [bold PB font]](http://s1.studyres.com/store/data/006552150_1-744c96fecd477a0d4dbe6606035b9c8f-300x300.png)
Macmillan Natural and Social Science 1 [bold PB font]
... Additionally in this unit, your child will investigate the changing phases of the moon and consolidate reasons for day and night. They will say the Sun chant. This chant allows your child to review the key vocabulary of the unit in context. Encourage your child to listen to the chant while looking a ...
... Additionally in this unit, your child will investigate the changing phases of the moon and consolidate reasons for day and night. They will say the Sun chant. This chant allows your child to review the key vocabulary of the unit in context. Encourage your child to listen to the chant while looking a ...
Cosmic Distance Ladder Terrence Tao (UCLA)
... Once again, the ancient Greeks could answer this question! • Aristarchus already knew that the radius of the moon was about 1/180 of the distance to the moon. Since the Sun and Moon have about the same angular width (most dramatically seen during a solar eclipse), he concluded that the radius of th ...
... Once again, the ancient Greeks could answer this question! • Aristarchus already knew that the radius of the moon was about 1/180 of the distance to the moon. Since the Sun and Moon have about the same angular width (most dramatically seen during a solar eclipse), he concluded that the radius of th ...
THE DOCTRINE OF ORIGINAL SPIN
... accounting for the planetary rotation directions and periods will be undertaken. The discontinuous ether model postulates an ether consisting of discrete particles, called ethertrons, that emulate the properties of an ideal gas. The energy released from nuclear fusion takes the form of a proliferati ...
... accounting for the planetary rotation directions and periods will be undertaken. The discontinuous ether model postulates an ether consisting of discrete particles, called ethertrons, that emulate the properties of an ideal gas. The energy released from nuclear fusion takes the form of a proliferati ...
Sun - rmwright
... Temperature ranges from -235° C to -210° C because it is so far away from the Sun In 2006, Pluto was demoted to a dwarf planet Ninth planet from the Sun ...
... Temperature ranges from -235° C to -210° C because it is so far away from the Sun In 2006, Pluto was demoted to a dwarf planet Ninth planet from the Sun ...
One way to measure distance
... • Consider Figure 0.18 on page 16 in your text. This figure shows solar eclipse paths over a world map. As a group, write a description of which eclipse your group would most like to observe together, where and when you would go to observe it, and fully explain why you selected the date and site you ...
... • Consider Figure 0.18 on page 16 in your text. This figure shows solar eclipse paths over a world map. As a group, write a description of which eclipse your group would most like to observe together, where and when you would go to observe it, and fully explain why you selected the date and site you ...
on his death bed. Retrograde Motion The heliocentric
... (bringing images 30 x closer), although a lensmaker in Holland made the first telescope. ...
... (bringing images 30 x closer), although a lensmaker in Holland made the first telescope. ...
A star is a - Trimble County Schools
... __________________ cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction Binary Stars • _____________________________ – Pairs of stars that revolve around one another – Gravitationally bound & orbiting a common center of mass • ...
... __________________ cannot distinguish the distance a star is from earth • Clusters are stars close to each other due to gravitational attraction Binary Stars • _____________________________ – Pairs of stars that revolve around one another – Gravitationally bound & orbiting a common center of mass • ...
The Night Sky 12-07
... evening twilight. During the first few days of April, before it disappears from view, Mercury can be glimpsed along the horizon well below Mars. Jupiter reaches opposition this month, which means that it will be up all night long and high in the south at local midnight. For us in the U.P. on Eastern ...
... evening twilight. During the first few days of April, before it disappears from view, Mercury can be glimpsed along the horizon well below Mars. Jupiter reaches opposition this month, which means that it will be up all night long and high in the south at local midnight. For us in the U.P. on Eastern ...
Quiz Reviews - Orion Observatory
... 3. How was the term “Big Bang” coined, and did any steady-state theorists deny the Big Bang after the cosmic microwave background was discovered? 4. What is the cosmic microwave background radiation? Why did it have to exist? How was it discovered? Who got credit for discovering it? 5. Why did ripp ...
... 3. How was the term “Big Bang” coined, and did any steady-state theorists deny the Big Bang after the cosmic microwave background was discovered? 4. What is the cosmic microwave background radiation? Why did it have to exist? How was it discovered? Who got credit for discovering it? 5. Why did ripp ...
THE SOLAR SYSTEM
... Jovian). Pluto is considered by many astronomers to no longer be a planet, since there are now several known objects in orbits similar to Pluto's and of similar size - these are believed to be members of the Kuiper-belt. In addition to the major planets, there are a large number of moons, asteroids, ...
... Jovian). Pluto is considered by many astronomers to no longer be a planet, since there are now several known objects in orbits similar to Pluto's and of similar size - these are believed to be members of the Kuiper-belt. In addition to the major planets, there are a large number of moons, asteroids, ...
The fantastic journey of that ring on your finger: From
... The fantastic journey of that ring on your finger: From the Big Bang to your hand According to the prevailing Big Bang theory, the matter that made up the early universe largely consisted of hydrogen (the most basic element on the periodic table) and helium (the second gas on the scale). So, where d ...
... The fantastic journey of that ring on your finger: From the Big Bang to your hand According to the prevailing Big Bang theory, the matter that made up the early universe largely consisted of hydrogen (the most basic element on the periodic table) and helium (the second gas on the scale). So, where d ...
Final Exam from 2004 - Onondaga Community College
... some other guests and the topic of the new Cassini mission to Saturn comes up. One of the guests asks “Why is Saturn so much larger than the Earth? How did it get so huge?” The daughter, who knows her physics but not her astronomy, concedes that she does not know. The company President turns to you ...
... some other guests and the topic of the new Cassini mission to Saturn comes up. One of the guests asks “Why is Saturn so much larger than the Earth? How did it get so huge?” The daughter, who knows her physics but not her astronomy, concedes that she does not know. The company President turns to you ...
Astronomy I Ex.2
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
... What is the (approximate) age of the universe in Gyr? 3. Convert the following distances in cm to distances in AU: a) Approximate distance from the earth to the sun: 1.44 × 1013 cm b) Approximate distance from the earth to the next nearest star - Alpha Centauri: 3.97 × 1018 cm c) Approximate distanc ...
–1– AST104 Sp04: WELCOME TO EXAM 1 Multiple Choice
... c*. the deflection of light from distant stars b. the sun would appear 1/9 as bright with by the sun’s gravity a gravitational force on us 1/3 as strong. d. how massive objects accelerate to the c. the sun would appear 1/3 as bright with ...
... c*. the deflection of light from distant stars b. the sun would appear 1/9 as bright with by the sun’s gravity a gravitational force on us 1/3 as strong. d. how massive objects accelerate to the c. the sun would appear 1/3 as bright with ...
Ch 28 Fact Sheet
... ________________ 6. Which is faster the speed of light or the speed of sound? ________________ 7. Telescope that is at an advantage because it is outside Earth’s atmosphere. ________________ 8. Brightest star in our nighttime sky ________________ 9. Closest star to Earth. ________________ 10. Any 4 ...
... ________________ 6. Which is faster the speed of light or the speed of sound? ________________ 7. Telescope that is at an advantage because it is outside Earth’s atmosphere. ________________ 8. Brightest star in our nighttime sky ________________ 9. Closest star to Earth. ________________ 10. Any 4 ...
Chapter 22
... • The process of NUCLEAR FUSION • Einstein explained this process as E = MC² (matter can be converted into energy) • The hydrogen molecules that the sun is made of fuse together to form a helium atom. When this occurs, energy is given off! SUN – FUSION – atoms FUSE together **It is estimated that th ...
... • The process of NUCLEAR FUSION • Einstein explained this process as E = MC² (matter can be converted into energy) • The hydrogen molecules that the sun is made of fuse together to form a helium atom. When this occurs, energy is given off! SUN – FUSION – atoms FUSE together **It is estimated that th ...
Extraterrestrial life
Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an ""extraterrestrial"" or ""alien"" (or, to avoid confusion with the legal sense of ""alien"", a ""space alien""). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood's involvement, has increased the public's interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.