How many planets are there in our solar system
... 14. Who first discovered and classified galaxies? (1 pt) a. Neil Armstrong b. Edwin Hubble c. Frank Shu d. Robert Hevener 15. List evidence supporting the Big Bang Theory.(2 pts) 16.What is a meteorite? (1 pt) 17.What is space junk and how did it get into space? (1 pts) 18. Who is Dr. Frank Shu? (1 ...
... 14. Who first discovered and classified galaxies? (1 pt) a. Neil Armstrong b. Edwin Hubble c. Frank Shu d. Robert Hevener 15. List evidence supporting the Big Bang Theory.(2 pts) 16.What is a meteorite? (1 pt) 17.What is space junk and how did it get into space? (1 pts) 18. Who is Dr. Frank Shu? (1 ...
Classification and structure of galaxies
... • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat generated by the bar • Other galaxies (analogous structure as ...
... • Stars and star clusters – microwaves generated by water from H II regions (called the MASER technique) traces the Milky Way’s spiral arms • Nebulae – infrared light (detected by the Spitzer Space Telescope) shows the outline of the heat generated by the bar • Other galaxies (analogous structure as ...
Slide 1 - Beverley High School
... large radius and high surface temperatures. This is what makes them highly luminous. • They are using up their hydrogen fuel tremendously quickly. So they are extremely short lived (c10 000 000 ...
... large radius and high surface temperatures. This is what makes them highly luminous. • They are using up their hydrogen fuel tremendously quickly. So they are extremely short lived (c10 000 000 ...
Unit 4: Astronomy
... 2) Describe the unit of the length developed by astronomers to measure and describe distances to stars other than our own sun. 3) Explain the statement “looking deep into space is essentially looking back in time”. 4) Describe why some of the stars in the sky at night are only visible at certain tim ...
... 2) Describe the unit of the length developed by astronomers to measure and describe distances to stars other than our own sun. 3) Explain the statement “looking deep into space is essentially looking back in time”. 4) Describe why some of the stars in the sky at night are only visible at certain tim ...
Transcript_Forbidden Planets
... generate enough solar wind to blow away the atmosphere – and they would only last of few million years before going supernova, which would be insufficient time for the indigenous Tatooine life-forms to have evolved. So let’s run with the idea that Tatooine really does have two stars of approximately ...
... generate enough solar wind to blow away the atmosphere – and they would only last of few million years before going supernova, which would be insufficient time for the indigenous Tatooine life-forms to have evolved. So let’s run with the idea that Tatooine really does have two stars of approximately ...
Astronomical Toolkit
... faint stars that just happen to lie very close to us. When observing, we are forced to stay on Earth or nearby and can only measure the intensity of the light that reaches us. Unfortunately this does not immediately tell us anything about a star’s internal properties. If we want to know more about a ...
... faint stars that just happen to lie very close to us. When observing, we are forced to stay on Earth or nearby and can only measure the intensity of the light that reaches us. Unfortunately this does not immediately tell us anything about a star’s internal properties. If we want to know more about a ...
Mountain Skies - Pisgah Astronomical Research Institute
... quickly sinking into the west and will be lost to us by early September. The red planet Mars is well up in the south these evenings. It is quickly dimming as the earth moves away from it but still outshines any of the stars in the sky. The observer with a good telescope can still make out some of th ...
... quickly sinking into the west and will be lost to us by early September. The red planet Mars is well up in the south these evenings. It is quickly dimming as the earth moves away from it but still outshines any of the stars in the sky. The observer with a good telescope can still make out some of th ...
Lecture11
... luminosity has gone up by about 40%. These changes in the core have made the Sun’s outer layers expand in radius by 6% and increased the surface temperature from 5500 K to 5800 K. ...
... luminosity has gone up by about 40%. These changes in the core have made the Sun’s outer layers expand in radius by 6% and increased the surface temperature from 5500 K to 5800 K. ...
THE METER STICK MODEL OF THE SOLAR SYSTEM
... *How to find these stars in the night sky: All but two of the stars in the list above are identified on Uncle Al’s Sky Wheels (http://www.lhs.berkeley.edu/starclock/skywheel.html). The two not identified are Fomalhaut and Adhara. Adhara is the bottom star (marking the “foot” of the dog) in the const ...
... *How to find these stars in the night sky: All but two of the stars in the list above are identified on Uncle Al’s Sky Wheels (http://www.lhs.berkeley.edu/starclock/skywheel.html). The two not identified are Fomalhaut and Adhara. Adhara is the bottom star (marking the “foot” of the dog) in the const ...
WHERE DO WE SEARCH FOR LIFE IN THE UNIVERSE?
... Elimination of High Mass Stars Roughly 1% of all Milky Way stars are considered high mass stars that do not meet certain minimum criteria ...
... Elimination of High Mass Stars Roughly 1% of all Milky Way stars are considered high mass stars that do not meet certain minimum criteria ...
Chapter 29: Stars - Mr. Pelton Science
... • What is the difference between brightness and luminosity? • What are the properties used to identify stars? ...
... • What is the difference between brightness and luminosity? • What are the properties used to identify stars? ...
Nuclear Interactions in Supernovae .
... an enormous amount of energy is released from all the hydrogen being fused in a short amount of time. • This causes an explosion on the surface of the dwarf, which doesn’t affect the star, but increases its brightness by 50,000 to 100,000 times that of the sun. ...
... an enormous amount of energy is released from all the hydrogen being fused in a short amount of time. • This causes an explosion on the surface of the dwarf, which doesn’t affect the star, but increases its brightness by 50,000 to 100,000 times that of the sun. ...
stars and planets
... There are around 200 billion stars in the Milky Way alone. VY Canis Majoris is the largest known star in our galaxy, if this star was in the center of our solar system it would reach the orbit of Saturn. One of the smallest known stars in the galaxy is VB 10, it is only around 20% larger than Jupite ...
... There are around 200 billion stars in the Milky Way alone. VY Canis Majoris is the largest known star in our galaxy, if this star was in the center of our solar system it would reach the orbit of Saturn. One of the smallest known stars in the galaxy is VB 10, it is only around 20% larger than Jupite ...
Stars
... usually done on spectral lines. • Essentially all of the mass measurements that we have for stars are for stars in binary systems – two stars orbiting each other. • The mass of the stars can be measured from their velocities and the distance between the stars. ...
... usually done on spectral lines. • Essentially all of the mass measurements that we have for stars are for stars in binary systems – two stars orbiting each other. • The mass of the stars can be measured from their velocities and the distance between the stars. ...
The Family of Stars
... All wavelengths of emissions from near the event horizon are stretched (redshifted). Frequencies are lowered. ...
... All wavelengths of emissions from near the event horizon are stretched (redshifted). Frequencies are lowered. ...
handout
... Walk to the Stars Imagine building a scale model of the nearby stars, with the nearest star, Alpha Centauri, placed 100 yards away. Sirius, the Dog Star, is about 200 yards away. The bright stars of the Big Dipper hover a Eris Pluto mile above our heads. (In the real world, they’re Neptune about 4, ...
... Walk to the Stars Imagine building a scale model of the nearby stars, with the nearest star, Alpha Centauri, placed 100 yards away. Sirius, the Dog Star, is about 200 yards away. The bright stars of the Big Dipper hover a Eris Pluto mile above our heads. (In the real world, they’re Neptune about 4, ...
Sizing Up The Universe
... Small Magellanic Cloud. They were all at approximately the same distance, so their relative luminosity as a function of their period of variability could be determined. From 1923 to 1924 Edwin Hubble (1889–1953) observed the Andromeda galaxy (M31) with the 100-inch-diameter telescope on Mount Wilson ...
... Small Magellanic Cloud. They were all at approximately the same distance, so their relative luminosity as a function of their period of variability could be determined. From 1923 to 1924 Edwin Hubble (1889–1953) observed the Andromeda galaxy (M31) with the 100-inch-diameter telescope on Mount Wilson ...
Lecture 5: The H-R diagram, standard candles and cosmic distances
... to the Doppler effect, as the orbits of the stars carry them first toward then away from the Earth • Analysis of these spectral shifts allows velocity and period to be derived, and hence M1+M2 ...
... to the Doppler effect, as the orbits of the stars carry them first toward then away from the Earth • Analysis of these spectral shifts allows velocity and period to be derived, and hence M1+M2 ...
Astronomy 120
... 11. The Ring Nebula in Lyrae is a planetary nebula with an angular diameter of 72 seconds of arc at a distance of 5000 ly. a) What is its linear diameter? b) If the Ring Nebula is expanding at a velocity of 15 km/sec, typical of planetary nebulae, how old is it? Assume a uniform rate of expansion. ...
... 11. The Ring Nebula in Lyrae is a planetary nebula with an angular diameter of 72 seconds of arc at a distance of 5000 ly. a) What is its linear diameter? b) If the Ring Nebula is expanding at a velocity of 15 km/sec, typical of planetary nebulae, how old is it? Assume a uniform rate of expansion. ...
Module 6: “The Message of Starlight Assignment 9: Parallax, stellar
... At this point there is no way to avoid the units that astronomers use: we have mentioned magnitude already, which is a brightness scale in which very bright stars are roughly magnitude 0, faint stars are magnitude 5, and really faint stars have larger and larger magnitudes. These are further divide ...
... At this point there is no way to avoid the units that astronomers use: we have mentioned magnitude already, which is a brightness scale in which very bright stars are roughly magnitude 0, faint stars are magnitude 5, and really faint stars have larger and larger magnitudes. These are further divide ...
galaxy_physics
... – About 10% of star mass – Collisional lose energy by radiation – Can settle to bottom of potential and make stars • Disk plane : gas creates disk stars (“cold” with small scale height) ...
... – About 10% of star mass – Collisional lose energy by radiation – Can settle to bottom of potential and make stars • Disk plane : gas creates disk stars (“cold” with small scale height) ...
Lecture 16
... A later scheme, called the B-V Index, classed stars according to a logarithmic ratio of the peak amount of radiation in the blue and violet colors. The current scheme is to class stars according to color in a way which is more or less logarithmically proportional to temperature. In this scheme stars ...
... A later scheme, called the B-V Index, classed stars according to a logarithmic ratio of the peak amount of radiation in the blue and violet colors. The current scheme is to class stars according to color in a way which is more or less logarithmically proportional to temperature. In this scheme stars ...
Ch16: The Milky Way
... X-ray flares from galactic center suggest that a black hole occasionally tears apart chunks of matter as it falls in ...
... X-ray flares from galactic center suggest that a black hole occasionally tears apart chunks of matter as it falls in ...
Star Search Game: Constructing a Hertzsprung
... Inspired by: Ian Christie (VSSEC); Activity created by: Nandita Bajaj Introduction: Star Search is an online game developed by the Victorian Space Science Education Centre (VSSEC) that allows the user to go on a simulated journey into space using a spacecraft in search of various stars. The user is ...
... Inspired by: Ian Christie (VSSEC); Activity created by: Nandita Bajaj Introduction: Star Search is an online game developed by the Victorian Space Science Education Centre (VSSEC) that allows the user to go on a simulated journey into space using a spacecraft in search of various stars. The user is ...
The winter triangle - NRC Publications Archive
... making up the constellations are in our cosmic backyard. Our galaxy, one of billions, is about 100,000 light years in diameter. That is, it is so large that light takes roughly 100,000 light years to get from one side to the other. In more familiar units, a light year is just under 10,000,000,000,00 ...
... making up the constellations are in our cosmic backyard. Our galaxy, one of billions, is about 100,000 light years in diameter. That is, it is so large that light takes roughly 100,000 light years to get from one side to the other. In more familiar units, a light year is just under 10,000,000,000,00 ...
Perseus (constellation)
Perseus, named after the Greek mythological hero Perseus, is a constellation in the northern sky. It was one of 48 listed by the 2nd-century astronomer Ptolemy and among the 88 modern constellations defined by the International Astronomical Union (IAU). It is located in the northern celestial hemisphere near several other constellations named after legends surrounding Perseus, including Andromeda to the west and Cassiopeia to the north. Perseus is also bordered by Aries and Taurus to the south, Auriga to the east, Camelopardalis to the north, and Triangulum to the west.The galactic plane of the Milky Way passes through Perseus but is mostly obscured by molecular clouds. The constellation's brightest star is the yellow-white supergiant Alpha Persei (also called Mirfak), which shines at magnitude 1.79. It and many of the surrounding stars are members of an open cluster known as the Alpha Persei Cluster. The best-known star, however, is Algol (Beta Persei), linked with ominous legends because of its variability, which is noticeable to the naked eye. Rather than being an intrinsically variable star, it is an eclipsing binary. Other notable star systems in Perseus include X Persei, a binary system containing a neutron star, and GK Persei, a nova that peaked at magnitude 0.2 in 1901. The Double Cluster, comprising two open clusters quite near each other in the sky, was known to the ancient Chinese. The constellation gives its name to the Perseus Cluster (Abell 426), a massive galaxy cluster located 250 million light-years from Earth. It hosts the radiant of the annual Perseids meteor shower—one of the most prominent meteor showers in the sky.