Foundation 1 - Discovering Astronomy
... reactions produce outward force and balances the inward force of gravity hydrostatic equilibrium = star becomes stable and contraction stopsmain-sequence star ...
... reactions produce outward force and balances the inward force of gravity hydrostatic equilibrium = star becomes stable and contraction stopsmain-sequence star ...
Name__________________________________________ J
... Copernicus concluded that Earth is a planet. He proposed a model of the solar system with the sun at the center. o VERY different from the original proposal---a motionless Earth lies at the center of our universe. o Used perfect circles to represent the orbits of the planets. There was a problem ...
... Copernicus concluded that Earth is a planet. He proposed a model of the solar system with the sun at the center. o VERY different from the original proposal---a motionless Earth lies at the center of our universe. o Used perfect circles to represent the orbits of the planets. There was a problem ...
7.1 Space Flight to the Stars
... fathom the distance in units like metres and kilometres. -For this reason, we use units such as the astronomical unit (AU) -One astronomical unit is equal to the average distance between the Sun and Earth, which is about 150 million kilometres. -Once we get past our solar system, the distance to oth ...
... fathom the distance in units like metres and kilometres. -For this reason, we use units such as the astronomical unit (AU) -One astronomical unit is equal to the average distance between the Sun and Earth, which is about 150 million kilometres. -Once we get past our solar system, the distance to oth ...
Types of Planets and Stars
... vary in size, mass, and brightness, but they all convert hydrogen into helium, also known as nuclear fusion. While our sun will spend 10 billion on its main sequence, a star ten times as massive will stick around for only 20 million years. Red Dwarf -- most common stars in the universe. These star ...
... vary in size, mass, and brightness, but they all convert hydrogen into helium, also known as nuclear fusion. While our sun will spend 10 billion on its main sequence, a star ten times as massive will stick around for only 20 million years. Red Dwarf -- most common stars in the universe. These star ...
The search for exoplanets
... which constantly emits deadly radiation doesn’t support life. But it was the first success of finding a planet outside our solar system. In the following year other planets around pulsars were discovered. The discovery of exoplanets around ‘living’ stars started in 1990. The Swiss researcher Michel ...
... which constantly emits deadly radiation doesn’t support life. But it was the first success of finding a planet outside our solar system. In the following year other planets around pulsars were discovered. The discovery of exoplanets around ‘living’ stars started in 1990. The Swiss researcher Michel ...
Stars from Afar
... An HR diagram shows the two most important characteristics of stars, which are temperature and absolute magnitude (brightness) and/or luminosity. ...
... An HR diagram shows the two most important characteristics of stars, which are temperature and absolute magnitude (brightness) and/or luminosity. ...
Study Guide – Midterm 3
... • Time slows down in strong grav. field…. even GPS systems are affected. ...
... • Time slows down in strong grav. field…. even GPS systems are affected. ...
It`s a bird, it`s a plane…
... our solar system • Planets must be round, orbit the sun, and not be close to objects of similar mass • Pluto’s moon, Charon, is almost the same size, which disqualifies Pluto from Planethood ...
... our solar system • Planets must be round, orbit the sun, and not be close to objects of similar mass • Pluto’s moon, Charon, is almost the same size, which disqualifies Pluto from Planethood ...
lec03_30sep2011
... Disk-star- and protoplanet interactions lead to migration while the gas is present. Coreaccretion? 1 AU at 140 pc subtends 0.’’007. ...
... Disk-star- and protoplanet interactions lead to migration while the gas is present. Coreaccretion? 1 AU at 140 pc subtends 0.’’007. ...
Two new transiting extra-solar planets discovered with SuperWASP
... phenomenon called a "photometric transit." The second involves the reflex motion of the star due to that orbiting body, and is called the "radial-velocity" method. The first yields information on the size of the orbiting body while the second gives crucial information about its mass which can reveal ...
... phenomenon called a "photometric transit." The second involves the reflex motion of the star due to that orbiting body, and is called the "radial-velocity" method. The first yields information on the size of the orbiting body while the second gives crucial information about its mass which can reveal ...
Name:
... Earth’s atmosphere. When they strike the Earth’s surface they are called ________________________. A ________________ is a ball of ice, rock, and gas that has an orbit which brings it really close to the sun on one end, and sometimes much farther than Pluto on the other end. Which one of these objec ...
... Earth’s atmosphere. When they strike the Earth’s surface they are called ________________________. A ________________ is a ball of ice, rock, and gas that has an orbit which brings it really close to the sun on one end, and sometimes much farther than Pluto on the other end. Which one of these objec ...
First detection of a planet that survived the red giant expansion of its
... only 1.7 times the medium distance between the Earth and the Sun. During a “red giant phase”, the stars, after exhausting their primary fuel, hydrogen, in the core, experience an enormous expansion (with their volume increasing by a factor of a few millions) that can easily reach and engulf the i ...
... only 1.7 times the medium distance between the Earth and the Sun. During a “red giant phase”, the stars, after exhausting their primary fuel, hydrogen, in the core, experience an enormous expansion (with their volume increasing by a factor of a few millions) that can easily reach and engulf the i ...
Binary Stars (Professor Powerpoint)
... binaries. Eclipsing Binary stars are also referred to as Extrinsic Variable Stars. ...
... binaries. Eclipsing Binary stars are also referred to as Extrinsic Variable Stars. ...
Characteristics of Stars
... Stars that glow blue-white are the hottest (15,000 degrees Celsius) Rigel ...
... Stars that glow blue-white are the hottest (15,000 degrees Celsius) Rigel ...
Slide 1
... • AGB stars are left with the stellar core surrounded by a relatively thin sphere of hot gas which looks like planetary disk, and called Planetary Nebulae (PNe) (nothing to do with planets per se) • PNe cores continue to cool and become White Dwarfs (94% stars end up as WDs) ...
... • AGB stars are left with the stellar core surrounded by a relatively thin sphere of hot gas which looks like planetary disk, and called Planetary Nebulae (PNe) (nothing to do with planets per se) • PNe cores continue to cool and become White Dwarfs (94% stars end up as WDs) ...
Ch 29 Sun and Solar Activity
... atmosphere, disrupt longrange radios, satell. & radar • solar flame animation ...
... atmosphere, disrupt longrange radios, satell. & radar • solar flame animation ...
Unit E Space Exploration Section 1 Notnd Space has changed over
... of gas (mainly hydrogen) that gives off light energy. ...
... of gas (mainly hydrogen) that gives off light energy. ...
The “Big Bang” Theory
... A moving train will have a higher pitch whistle when it is moving toward you and a lower pitch after it passes you. ...
... A moving train will have a higher pitch whistle when it is moving toward you and a lower pitch after it passes you. ...
Science 8
... 8. Stars that are much larger than the sun are called __________________ or ____________________. 9. Which kinds of stars are smaller than our sun? a. neutron star ...
... 8. Stars that are much larger than the sun are called __________________ or ____________________. 9. Which kinds of stars are smaller than our sun? a. neutron star ...
I : Internal structure of main sequence stars
... The luminosity L The efficiency of the fusion η The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
... The luminosity L The efficiency of the fusion η The mass of the star M The fraction of the stellar mass that can participate in the fusion reactions f ...
PowerPoint Presentation - ASTR498E High energy
... A star leaves the main sequence once it exhausts its supply of hydrogen in the core This lifetime depends upon ...
... A star leaves the main sequence once it exhausts its supply of hydrogen in the core This lifetime depends upon ...