Star Study Guide Chapter 21 Test
... shows the relationship between absolute brightness and surface temperature of a star ...
... shows the relationship between absolute brightness and surface temperature of a star ...
Script - ESA/Hubble
... years, astronomers have made many observations of what happens when the fuel supply runs out. They end with a whimper, not a bang. Here’s how it goes — as revealed by Hubble observations of dozens of stars at different stages of evolution. [Narrator] ...
... years, astronomers have made many observations of what happens when the fuel supply runs out. They end with a whimper, not a bang. Here’s how it goes — as revealed by Hubble observations of dozens of stars at different stages of evolution. [Narrator] ...
Stars
... Stars have different colors ranging from reds, oranges, and yellows, to blues and whites. ...
... Stars have different colors ranging from reds, oranges, and yellows, to blues and whites. ...
Document
... • Stars don’t live forever. Stars expand as it grows old. After the hydrogen (fuel) is used up, the star will begin to die. The core contracts and the outer layers expand, cool, and become less bright. It then becomes a red giant star. • Helium is now being used, and the core begins to shrink, and o ...
... • Stars don’t live forever. Stars expand as it grows old. After the hydrogen (fuel) is used up, the star will begin to die. The core contracts and the outer layers expand, cool, and become less bright. It then becomes a red giant star. • Helium is now being used, and the core begins to shrink, and o ...
The Milky Way
... • If you know how luminous a star REALLY is and how bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: ...
... • If you know how luminous a star REALLY is and how bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: ...
Chapter 8: Stars
... sequence for a long time, they don’t stay their forever. • Average stars like the Sun, become red giants and then white dwarfs. • Massive stars use their hydrogen much faster than stars like the sun do. ...
... sequence for a long time, they don’t stay their forever. • Average stars like the Sun, become red giants and then white dwarfs. • Massive stars use their hydrogen much faster than stars like the sun do. ...
STARS- hot glowing sphere of gas that produces energy by
... STAR- hot glowing sphere of gas that produces energy by fusion 1] Light year—distance light travels in a year (9.5 trillion km, 6 trillion miles) 2] Star brightness A) Actual brightness- brightness right next to a star B) Apparent brightness—brightness as seen from earth 3] Formation of stars A) Neb ...
... STAR- hot glowing sphere of gas that produces energy by fusion 1] Light year—distance light travels in a year (9.5 trillion km, 6 trillion miles) 2] Star brightness A) Actual brightness- brightness right next to a star B) Apparent brightness—brightness as seen from earth 3] Formation of stars A) Neb ...
METRIC PREFIXES
... 1. One light-year in the distance light travels in one year. This distance is equal to 9.461 x 1015m. After the sun, the star nearest to Earth is Alpha Centauri, which is about 4.35 light- years from Earth. Express this distance in a. megameters ...
... 1. One light-year in the distance light travels in one year. This distance is equal to 9.461 x 1015m. After the sun, the star nearest to Earth is Alpha Centauri, which is about 4.35 light- years from Earth. Express this distance in a. megameters ...
Stars - Denbigh Baptist Christian School
... Novas – Latin word means “New” Scientist now believe a nova is when an existing star flares up to become 100’s or 1000’s times brighter. Outer layers gradually float off into space leaving smaller, dimmer star. Nova’s are not common. Nebula – cloud of interstellar gases and debris Supernovas – death ...
... Novas – Latin word means “New” Scientist now believe a nova is when an existing star flares up to become 100’s or 1000’s times brighter. Outer layers gradually float off into space leaving smaller, dimmer star. Nova’s are not common. Nebula – cloud of interstellar gases and debris Supernovas – death ...
Day 15
... brightness as a measure of distance This assumes that all stars have the same luminosity. The double star data was starting to show that was an incorrect assumption ...
... brightness as a measure of distance This assumes that all stars have the same luminosity. The double star data was starting to show that was an incorrect assumption ...
PC2491 Examples 2
... (6) An atomic hydrogen cloud has a uniform density of 109 atoms m-3 and a temperature of 100K. Estimate how large the cloud can be before it begins to collapse under its own gravity. ...
... (6) An atomic hydrogen cloud has a uniform density of 109 atoms m-3 and a temperature of 100K. Estimate how large the cloud can be before it begins to collapse under its own gravity. ...
Galaxies
... • The halo completely surrounds the disk of the galaxy • It contains Population II stars • Most of the stars are found in globular clusters ...
... • The halo completely surrounds the disk of the galaxy • It contains Population II stars • Most of the stars are found in globular clusters ...
The Sun Compared to Other Stars
... The Sun Compared to Other Stars • Hertzsprung-Russell (HR) Diagram: A graph plot indicating individual stars as points, with stellar luminosity on the vertical axis & surface temperature (spectral type) on the horizontal axis • We can use spectroscopy to determine the spectral type & luminosity of a ...
... The Sun Compared to Other Stars • Hertzsprung-Russell (HR) Diagram: A graph plot indicating individual stars as points, with stellar luminosity on the vertical axis & surface temperature (spectral type) on the horizontal axis • We can use spectroscopy to determine the spectral type & luminosity of a ...
Sequence of Stars Notes
... Becomes either a black hole or a neutron star (depending on mass of original star) ...
... Becomes either a black hole or a neutron star (depending on mass of original star) ...
ASTR220 Collisions in Space
... Bright and variable X-ray emission. Found high-mass star at approximate location of X-ray source. Found that star has very large velocity shifts (40 m/s in each direction)… … must be something very massive swinging it around! ...
... Bright and variable X-ray emission. Found high-mass star at approximate location of X-ray source. Found that star has very large velocity shifts (40 m/s in each direction)… … must be something very massive swinging it around! ...
Amie Bickert - ColonialAcademyScience
... nuclear fusion starts and a star is born. Step 4: How long a star lives depends on its mass. The small mass star will burn slower and thus last longer, while the larger mass star will burn quickly and thus burn out faster. Step 4: Life span: a star with less mass than the sun lives for about 200 ...
... nuclear fusion starts and a star is born. Step 4: How long a star lives depends on its mass. The small mass star will burn slower and thus last longer, while the larger mass star will burn quickly and thus burn out faster. Step 4: Life span: a star with less mass than the sun lives for about 200 ...
Yes, we are all star dust. Even Gary!
... • Massive Stellar Nuc. (fusion in massive stars) = Oxygen to Iron • Supernovae (exploding massive stars) = all other naturally occurring elements heavier than Iron (ie the metals and rare earths) ...
... • Massive Stellar Nuc. (fusion in massive stars) = Oxygen to Iron • Supernovae (exploding massive stars) = all other naturally occurring elements heavier than Iron (ie the metals and rare earths) ...
Life Cycle of a Star
... • This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
... • This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
1 - Alice Pevyhouse
... 3.What stage of a star is powered by gravitational potential energy being converted into thermal energy: 4.Astronomers identify the “birth” of a real star with what activity in the star? 5.When a single star of mass equal to our Sun dies, it will ultimatly become a 6. In a collapsing star of high ma ...
... 3.What stage of a star is powered by gravitational potential energy being converted into thermal energy: 4.Astronomers identify the “birth” of a real star with what activity in the star? 5.When a single star of mass equal to our Sun dies, it will ultimatly become a 6. In a collapsing star of high ma ...
Life Cycle of a Star
... • This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...
... • This phase will last until the star exhausts its remaining fuel. • The pressure of the nuclear reaction is not strong enough to equalize the force of gravity so the star will collapse. ...