THE STAR - physics.udel.edu
... contemporaneous Persian figure.[2] The two other notably bright stars in Cassiopeia are both variable stars. Gamma Cassiopeiae is a shell star, a type of variable star that has a very high rate of rotation. This causes the star to be somewhat unstable and periodically eject rings of material. ...
... contemporaneous Persian figure.[2] The two other notably bright stars in Cassiopeia are both variable stars. Gamma Cassiopeiae is a shell star, a type of variable star that has a very high rate of rotation. This causes the star to be somewhat unstable and periodically eject rings of material. ...
Document
... galaxy elongated oval in shape- Elliptical Galaxy galaxy of no particular shape, rich in dust and gas- Irregular galaxy a large explosion which causes a star to become suddenly bright- Nova an object so dense that even light cannot escape its gravity- Black Hole galaxy with a nucleus of bright stars ...
... galaxy elongated oval in shape- Elliptical Galaxy galaxy of no particular shape, rich in dust and gas- Irregular galaxy a large explosion which causes a star to become suddenly bright- Nova an object so dense that even light cannot escape its gravity- Black Hole galaxy with a nucleus of bright stars ...
The Night Sky
... A large numerous collections of stars, gas giants and planets that make up a visual universe. They are held together by each planets and stars gravity. Other Galaxies: Sunflower galaxy- A galaxy in a spiral form discovered in 1779 Whirlpool galaxy- A whirlpool like galaxy. thought to be about 14 mil ...
... A large numerous collections of stars, gas giants and planets that make up a visual universe. They are held together by each planets and stars gravity. Other Galaxies: Sunflower galaxy- A galaxy in a spiral form discovered in 1779 Whirlpool galaxy- A whirlpool like galaxy. thought to be about 14 mil ...
18-3 constellations RG
... 13. When a star or galaxy moves quickly away from an observer, the light it emits appears redder than it usually would, this effect is called _____________________________________________. 14. When a star or galaxy moves quickly toward an observer, the light it emits appears bluer than it usually w ...
... 13. When a star or galaxy moves quickly away from an observer, the light it emits appears redder than it usually would, this effect is called _____________________________________________. 14. When a star or galaxy moves quickly toward an observer, the light it emits appears bluer than it usually w ...
ppt
... • From there we can calculate how much further away the star must be than the Sun to make it the brightness we see from Earth • Delta Cephei shows has a period of about 5 days • This is a reasonably bright star in the constellation of Cepheus • Cepheids are in other galaxies also, and used similarly ...
... • From there we can calculate how much further away the star must be than the Sun to make it the brightness we see from Earth • Delta Cephei shows has a period of about 5 days • This is a reasonably bright star in the constellation of Cepheus • Cepheids are in other galaxies also, and used similarly ...
Exploration of the Universe
... Exploration of the Universe 1. What astronomical observations allow us to know the time of day, the date, direction and the timing of ocean tides? 2. What is the difference between an asterism and a constellation? 3. How would observations of stars differ from the observations of planets? 4. What is ...
... Exploration of the Universe 1. What astronomical observations allow us to know the time of day, the date, direction and the timing of ocean tides? 2. What is the difference between an asterism and a constellation? 3. How would observations of stars differ from the observations of planets? 4. What is ...
Practice Homework 2: Properties of Stars 1. Star A is 100 times more
... B. how Do the apparent brightness of the two stars compare 2. The temperature of gas filled in box A is more than the temperature of gas filled in box B. whose molecules have more average kinetic energy? Which gas has more total heat energy? 3. A star is found to emit maximum power at the wavelength 0 ...
... B. how Do the apparent brightness of the two stars compare 2. The temperature of gas filled in box A is more than the temperature of gas filled in box B. whose molecules have more average kinetic energy? Which gas has more total heat energy? 3. A star is found to emit maximum power at the wavelength 0 ...
Spring Stargazing - Trimble County Schools
... • If you really want to challenge yourself, use binoculars and go straight out from the nose of the lion. You should run into the “Beehive Cluster”. ...
... • If you really want to challenge yourself, use binoculars and go straight out from the nose of the lion. You should run into the “Beehive Cluster”. ...
1/2016
... Distance = approximately 887 light years Description: Delta Cephei is the prototype of the Cepheid class of variable stars. With a change in visual magnitude of 3.5 to 4.4, delta Cephei’s entire range of variability can be observed with the unaided eye. Its period of 5.366 days makes it an attractiv ...
... Distance = approximately 887 light years Description: Delta Cephei is the prototype of the Cepheid class of variable stars. With a change in visual magnitude of 3.5 to 4.4, delta Cephei’s entire range of variability can be observed with the unaided eye. Its period of 5.366 days makes it an attractiv ...
On my webpage, find the link Star Life Cycle and use it to answer the
... A Solar Mass is equal to the mass of the Sun. If, for example, a star has 2 solar masses, it means it has twice as much mass as the Sun. Click the “brown dwarf” link in Option 1 6. How many solar masses are brown dwarfs on average? ...
... A Solar Mass is equal to the mass of the Sun. If, for example, a star has 2 solar masses, it means it has twice as much mass as the Sun. Click the “brown dwarf” link in Option 1 6. How many solar masses are brown dwarfs on average? ...
STARS- hot glowing sphere of gas that produces energy by
... B) Apparent brightness—brightness as seen from earth 3] Formation of stars A) Nebula (cloud of dust and gas) collapses under its own gravity B) Friction in core causes temperature to reach 10,000,000 c C) fusion begins and a star is born 4] How stars are found A) Loner-by itself (our sun) B) Binary ...
... B) Apparent brightness—brightness as seen from earth 3] Formation of stars A) Nebula (cloud of dust and gas) collapses under its own gravity B) Friction in core causes temperature to reach 10,000,000 c C) fusion begins and a star is born 4] How stars are found A) Loner-by itself (our sun) B) Binary ...
Physical Science 1 Quiz 10 1 ID # or name:
... 3. (1 pt.) Gas and dust distributed among the stars is known as the _______________. a. interstellar vacuum b. interstellar void c. ...
... 3. (1 pt.) Gas and dust distributed among the stars is known as the _______________. a. interstellar vacuum b. interstellar void c. ...
100 X size of Sun - East Penn School District
... • In the magnitude scale, lower numbers are associated with brighter stars. • Star A has an apparent magnitude = 5.4 and star B has an apparent magnitude = 2.4. Which star is brighter? • We can't actually move stars around, but we can calculate how bright a star would be if placed at the agreed-upon ...
... • In the magnitude scale, lower numbers are associated with brighter stars. • Star A has an apparent magnitude = 5.4 and star B has an apparent magnitude = 2.4. Which star is brighter? • We can't actually move stars around, but we can calculate how bright a star would be if placed at the agreed-upon ...
HR-diagram - Bakersfield College
... would not be the same apparent magnitude WHY? • To compare absolute brightness • use a standard distance of 32.6 light-years away from earth ...
... would not be the same apparent magnitude WHY? • To compare absolute brightness • use a standard distance of 32.6 light-years away from earth ...
HR DIAGRAM REPORT FORM
... 4. How many of the stars in table 10.1 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ How many of the stars in table 10.2 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ 5. Based on ...
... 4. How many of the stars in table 10.1 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ How many of the stars in table 10.2 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ 5. Based on ...
The “Big Bang” Theory
... • Matter started to “_______” back together • This was due to __________ • The ________, _______ and __________ formed from these clumps of dust and gas • There are __________ of galaxies in the universe and each galaxy consists of __________ of stars ...
... • Matter started to “_______” back together • This was due to __________ • The ________, _______ and __________ formed from these clumps of dust and gas • There are __________ of galaxies in the universe and each galaxy consists of __________ of stars ...
Understanding Stars
... Stefan-Boltzman Law A dense hot object emits light of all colors – More of one color than others • “peak” color – The peak color is determined by the temperature • Hotter = bluer! – demo Stellar Spectroscopy Astronomers can tell what elements are in a star by the lines in its spectrum Peak color det ...
... Stefan-Boltzman Law A dense hot object emits light of all colors – More of one color than others • “peak” color – The peak color is determined by the temperature • Hotter = bluer! – demo Stellar Spectroscopy Astronomers can tell what elements are in a star by the lines in its spectrum Peak color det ...
The Evening Sky in February 2016
... In February bright stars are nearly overhead. Sirius, the brightest star, is north of the zenith. Canopus, the second brightest star, is south of the zenith. Below and left of Sirius are Orion's bright stars: bluish Rigel and reddish Betelgeuse. Between them is the line of three stars making Orion's ...
... In February bright stars are nearly overhead. Sirius, the brightest star, is north of the zenith. Canopus, the second brightest star, is south of the zenith. Below and left of Sirius are Orion's bright stars: bluish Rigel and reddish Betelgeuse. Between them is the line of three stars making Orion's ...
Sample exam 2
... 13. Suppose you are looking at the emission spectrum of gaseous helium. You dutifully write down the wavelengths of emission. You notice a power dial on the side of emission lamp and, just for fun, decide to turn up the power. The color of the helium lamp changes and you look through the spectroscop ...
... 13. Suppose you are looking at the emission spectrum of gaseous helium. You dutifully write down the wavelengths of emission. You notice a power dial on the side of emission lamp and, just for fun, decide to turn up the power. The color of the helium lamp changes and you look through the spectroscop ...
Locating Objects in Space
... Gases keep expanding until they dissipate in interstellar space Core star left, but center becomes white dwarf. ...
... Gases keep expanding until they dissipate in interstellar space Core star left, but center becomes white dwarf. ...
Chapter 1 Starts and Galaxies
... Red shift- shift toward the red end of the spectrum of a star that is moving away from the Earth Doppler effect- apparent change in the wavelength of light that occurs when an object is moving toward or away from the Earth Big-bang theory- theory that states that the universe began to expand with th ...
... Red shift- shift toward the red end of the spectrum of a star that is moving away from the Earth Doppler effect- apparent change in the wavelength of light that occurs when an object is moving toward or away from the Earth Big-bang theory- theory that states that the universe began to expand with th ...
Stellar Evolution
... How big is the Universe? • The visible universe is 28 billion light years in diameter. • Why is that all that is visible? • The entire universe ...
... How big is the Universe? • The visible universe is 28 billion light years in diameter. • Why is that all that is visible? • The entire universe ...
lecture23
... More luminous variable stars have large Period Variability is EXTREMELY USEFUL, because it is an absolute distance indicator ...
... More luminous variable stars have large Period Variability is EXTREMELY USEFUL, because it is an absolute distance indicator ...
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.