In the Spring of 2007 two of us began planning a new course in
... a. brightness b. temperature c. color d. mass e. chemical makeup 15. Current evidence about how the universe is changing tells us that a. We are near the center of the universe. b. Galaxies are expanding into empty space. c. Groups of galaxies appear to move away from each other d. Nearby galaxies a ...
... a. brightness b. temperature c. color d. mass e. chemical makeup 15. Current evidence about how the universe is changing tells us that a. We are near the center of the universe. b. Galaxies are expanding into empty space. c. Groups of galaxies appear to move away from each other d. Nearby galaxies a ...
Lecture3
... stars are always up: they are circumpolar. Constellations: Just random groupings of stars invented by humans. The celestial sphere is an imaginary sphere where we place stars on a two dimensional grid, similar to latitude and longitude on earth. ...
... stars are always up: they are circumpolar. Constellations: Just random groupings of stars invented by humans. The celestial sphere is an imaginary sphere where we place stars on a two dimensional grid, similar to latitude and longitude on earth. ...
Class 12 : Star formation I : The Interstellar Medium (ISM)
... A gas cloud of density ρ and temperature T collapses if its mass is above a critical amount given by… ...
... A gas cloud of density ρ and temperature T collapses if its mass is above a critical amount given by… ...
July 2014 BRAS Newsletter - The Baton Rouge Astronomical Society
... the constellation Cygnus, monitoring their brightness photometrically every 30 minutes for four years. It was searching for any minute decreases in brightness that might indicate one or more planets transiting (passing in front of) their host star as seen from Earth. (For comparison, if Earth transi ...
... the constellation Cygnus, monitoring their brightness photometrically every 30 minutes for four years. It was searching for any minute decreases in brightness that might indicate one or more planets transiting (passing in front of) their host star as seen from Earth. (For comparison, if Earth transi ...
Lecture Nine (Powerpoint format) - FLASH Center for Computational
... Some nuclei are radioactively unstable, and will transition from one nuclear state to another. In some cases, a nucleus is formed in an excited state, similar to an excited state of an atom. In an excited atomic state, an electron will transition from one state to a lower state, emitting a par ...
... Some nuclei are radioactively unstable, and will transition from one nuclear state to another. In some cases, a nucleus is formed in an excited state, similar to an excited state of an atom. In an excited atomic state, an electron will transition from one state to a lower state, emitting a par ...
How Big is Big? Integrated Science 2 Name: Date: Pd: Select items
... A billion is 109 or 1,000,000,000. And it is a BIG number! There are many cases in which numbers like a billion are used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers t ...
... A billion is 109 or 1,000,000,000. And it is a BIG number! There are many cases in which numbers like a billion are used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers t ...
Ch13_Lecture - Chemistry at Winthrop University
... Analyzing the HR Diagram • The Stefan-Boltzmann law is a key to understanding the H-R diagram – For stars of a given temperature, the larger the radius, the larger the luminosity – Therefore, as one moves up the H-R diagram, a star’s radius must become bigger – On the other hand, for a given lumino ...
... Analyzing the HR Diagram • The Stefan-Boltzmann law is a key to understanding the H-R diagram – For stars of a given temperature, the larger the radius, the larger the luminosity – Therefore, as one moves up the H-R diagram, a star’s radius must become bigger – On the other hand, for a given lumino ...
MS Word version
... are still stars (~20) in the simulator and click animate continuously. Describe the circumpolar stars seen from the south pole. ...
... are still stars (~20) in the simulator and click animate continuously. Describe the circumpolar stars seen from the south pole. ...
1 Kepler`s Third Law
... G is the gravitational constant which is just a number which makes the results of the equation match-up with our systems of measurement. The ‘−’ sign indicates that the force is attractive. Example: Q: Halley’s Comet travels on an eccentric elliptical orbit which carries it as close as about 1AU to ...
... G is the gravitational constant which is just a number which makes the results of the equation match-up with our systems of measurement. The ‘−’ sign indicates that the force is attractive. Example: Q: Halley’s Comet travels on an eccentric elliptical orbit which carries it as close as about 1AU to ...
A Relative-Scaled Model of the Solar System
... a. Standing at Earth, which planet is closest to you? Do you know why Venus is called Earth’s twin? b. If it were midnight on Earth and you facing away from the Sun, would you expect to see Mercury or Venus in the midnight sky? Why or why not? Venus is known to some people as the evening or morning ...
... a. Standing at Earth, which planet is closest to you? Do you know why Venus is called Earth’s twin? b. If it were midnight on Earth and you facing away from the Sun, would you expect to see Mercury or Venus in the midnight sky? Why or why not? Venus is known to some people as the evening or morning ...
common constellations
... Members of the Underground Railroad were fully aware of the predicament of fleeing slaves. About 1831 the Railroad began to send travelers into the South to secretly teach slaves specific routes they could navigate using Polaris. By the beginning of the Civil War in 1861, about 500 people a year wer ...
... Members of the Underground Railroad were fully aware of the predicament of fleeing slaves. About 1831 the Railroad began to send travelers into the South to secretly teach slaves specific routes they could navigate using Polaris. By the beginning of the Civil War in 1861, about 500 people a year wer ...
TRANSIT
... to date, an exoplanet with a radius only 50% larger than the Earth and possibly having liquid water on its surface. Using the ESO 3.6m telescope, a team of Swiss, French, and Portuguese scientists discovered a super-Earth about 5 times the mass of the Earth that orbits a red dwarf, already known to ...
... to date, an exoplanet with a radius only 50% larger than the Earth and possibly having liquid water on its surface. Using the ESO 3.6m telescope, a team of Swiss, French, and Portuguese scientists discovered a super-Earth about 5 times the mass of the Earth that orbits a red dwarf, already known to ...
The Milky Way galaxy
... The Sun is found in the plane of the Galaxy. It moves on a nice circular orbit around the center of the Galaxy along with other stars formed in the plane. If a halo star is passing through the plane, it will have a large relative velocity with respect to the Sun. So this is one way to identify a s ...
... The Sun is found in the plane of the Galaxy. It moves on a nice circular orbit around the center of the Galaxy along with other stars formed in the plane. If a halo star is passing through the plane, it will have a large relative velocity with respect to the Sun. So this is one way to identify a s ...
The cosmic distance scale
... dwarf star of the system explodes when it reaches a certain mass (which applies everywhere in the universe). This is however not exactly true, different white dwarfs have different atmospheric compositions and this in turn affects both how fast the supernovae fade and how bright they become, see Fig ...
... dwarf star of the system explodes when it reaches a certain mass (which applies everywhere in the universe). This is however not exactly true, different white dwarfs have different atmospheric compositions and this in turn affects both how fast the supernovae fade and how bright they become, see Fig ...
Quantum Well Electron Gain Structures and Infrared
... • If planet is close in, orbit will be unstable and chaotic • Moving in/out of HZ is probably hard on life development • If planet is far away (orbiting BOTH stars), orbit is stable, but typically outside the HZ (!) ...
... • If planet is close in, orbit will be unstable and chaotic • Moving in/out of HZ is probably hard on life development • If planet is far away (orbiting BOTH stars), orbit is stable, but typically outside the HZ (!) ...
Prime Focus - Tri-City Astronomy Club
... Without conclusively identifying and characterizing the foreground star, however, astronomers have had a difficult time determining the properties of the accompanying planet. Using Hubble and the Keck Observatory, two teams of astronomers have now found that the system consists of a Uranus-sized pl ...
... Without conclusively identifying and characterizing the foreground star, however, astronomers have had a difficult time determining the properties of the accompanying planet. Using Hubble and the Keck Observatory, two teams of astronomers have now found that the system consists of a Uranus-sized pl ...
Adapting Materials for ELL Students - title
... gravity is more powerful. If there is a lot of hydrogen nearby, gravity is even more powerful. In those conditions, stars are born. Little by little, some of the dust and some of the hydrogen form a large ball. Then, the ball shrinks, its core gets hotter, and gravity holds it all together. A star i ...
... gravity is more powerful. If there is a lot of hydrogen nearby, gravity is even more powerful. In those conditions, stars are born. Little by little, some of the dust and some of the hydrogen form a large ball. Then, the ball shrinks, its core gets hotter, and gravity holds it all together. A star i ...
Measuring the Heavens: Parallax
... The distance L from the sun to earth is the radius of the earth’s orbit. The parallax angle is measured by sighting the star at different times of the year. We want to find the distance D to the star. A complete circle is 360°. The angle is a fraction of that. Likewise, the sun-earth distance L ...
... The distance L from the sun to earth is the radius of the earth’s orbit. The parallax angle is measured by sighting the star at different times of the year. We want to find the distance D to the star. A complete circle is 360°. The angle is a fraction of that. Likewise, the sun-earth distance L ...
Modified True/False - Indicate whether the statement is true or false
... 8. HS-ESS1-1 In the last stage of stellar evolution following a supernova, stars too massive to form neutron stars may form a a. Red supergiant. c. White dwarf. b. Black dwarf. d. Black hole. ...
... 8. HS-ESS1-1 In the last stage of stellar evolution following a supernova, stars too massive to form neutron stars may form a a. Red supergiant. c. White dwarf. b. Black dwarf. d. Black hole. ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.