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REVIEW: STAR`S TEST
REVIEW: STAR`S TEST

... Explain how the e and m are related. A small amount of _____________ can become a huge amount of ____________ What is the speed of light ? List the visible light from longest to shortest wavelengths. ...
Stellar Evolution
Stellar Evolution

... We do not know that all stars, regardless of their size, eventually run out of fuel and collapse due to gravity Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, foll ...
Stars
Stars

... – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
Stellar Evolution - Hays High School
Stellar Evolution - Hays High School

Astronomy and Humanism by Ray Thompson A. EARLY
Astronomy and Humanism by Ray Thompson A. EARLY

... Henrietta's discovery. However, he made one further discovery in 1924. Using spectroscopy (introduced, you remember, by Newton) he noticed that the spectra of very distant stars were much redder than they should be when the spectral class of the star was taken into account. In addition, the further ...
Chapter 21 Study Guide
Chapter 21 Study Guide

... 12. A building that contains one or more telescopes is called an _____________________________. 13. Name one reason why astronomers have built large telescopes on the tops of mountains. _____________________________________________________________________________________ 14. The Hubble Space Telesco ...
Formation of Stars - mcp
Formation of Stars - mcp

... Nebulae – A cloud of gas and dust formed in space ...
Integrative Studies 410 Our Place in the Universe
Integrative Studies 410 Our Place in the Universe

... a interstellar gas cloud at the same time •Evidence: We see “associations” of stars of same age ...
Galaxies Powerpoint
Galaxies Powerpoint

... • A galaxy is a large grouping of stars, gas, and dust in space that are held together by gravity. • The largest galaxies contain more than a trillion stars. Smaller galaxies may have only a few million. • Scientists estimate the number of stars from the size and brightness of the galaxy. ...
Main Types of Galaxies
Main Types of Galaxies

... • A galaxy is a large grouping of stars, gas, and dust in space that are held together by gravity. • The largest galaxies contain more than a trillion stars. Smaller galaxies may have only a few million. • Scientists estimate the number of stars from the size and brightness of the galaxy. ...
Russell County Schools Non-Traditional Instructional Expectations
Russell County Schools Non-Traditional Instructional Expectations

... The discoveries of the white dwarf, the neutron star, and the black hole, coming well after the discovery of the red giant are among eh most exciting developments in decades because they may be well present physicists with their greatest challenge since thefailure of classical mechanics. In the lif ...
A Red Giant - Cloudfront.net
A Red Giant - Cloudfront.net

... Stars like our Sun Stars with masses similar to our Sun fuse at a rate that allows them to “live” as mainsequence stars for about 10 billion years. Then they run out of Hydrogen in their core Hydrostatic Equilibrium is lost… They Shrink a bit And begin to fuse Hydrogen into Helium in a shell outsid ...
Stellar Evolution
Stellar Evolution

6, 19, 24, 37, 47 and 65
6, 19, 24, 37, 47 and 65

Stellar Evolution - Hays High Indians
Stellar Evolution - Hays High Indians

... • Warming occurs slowly at first • Center begins to glow, dim to bright • When central temperature is high enough (~15 000 K, ~15 273 C) nuclear reactions can begin • Protostar has now become a true star ...
Unit Two Worksheet – Astronomy
Unit Two Worksheet – Astronomy

... the center of a shrinking, spinning nebula Anomaly in space with a gravity so tremendous that light cannot escape from it; generated by the collapse of a very large supernova Combination of the nuclei of atoms to form a larger nucleus; occurs in stars Remnant of a supernova, a small, extremely dense ...
Round 1
Round 1

... An ’HR diagram’ is a plot of which two quantities. (T (or spectral type) vs. L (or absolute magnitude)) $1200 More luminous stars tend to live this. (shorter lives) $1600 This tells you how much energy is released in the fusion of hydrogen to helium. (E = ∆mc2 where ∆m is the mass difference between ...
Stars - Mc Guckin Science
Stars - Mc Guckin Science

... • If the remaining mass of the star is more than about three times that of the Sun, it will collapse so completely that it will literally disappear from the universe. • What is left behind is an intense region of gravity called a black hole ...
Stars
Stars

... Did you know that stars die and can turn into different things after they're dead? Well all of that is true! A star starts to die when their core runs out of hydrogen and then helium. The dead star could become a black hole, a neutron star or a black dwarf depending on how big or small it is. Bigger ...
Reminder: Assignments are due back to teachers within 2 school days.
Reminder: Assignments are due back to teachers within 2 school days.

... The discoveries of the white dwarf, the neutron star, and the black hole, coming well after the discovery of the red giant are among eh most exciting developments in decades because they may be well present physicists with their greatest challenge since thefailure of classical mechanics. In the lif ...
15 Stellar Structure
15 Stellar Structure

... 3. Hydrostatic equilibrium: The weight on each layer is balanced by the pressure in that layer. 4. Energy transport: Energy moves from hot to cool regions by radiation or convection. ...
Astronomy – Phys 181 – Midterm Examination
Astronomy – Phys 181 – Midterm Examination

The Life Cycle of Stars
The Life Cycle of Stars

... Realize that once our Sun starts to run out of hydrogen fuel and has exhausted its ability to fuse other elements like carbon and oxygen, it will become a red giant and expand in size to envelope the Earth. And surprisingly, the larger the mass of the star, the quicker it burns its fuel sources and ...
Stars
Stars

...  Apparent magnitude: brightness as seen from Earth  Absolute magnitude: brightness if it were a standard distance from Earth ...
Stars Study Guide KEY
Stars Study Guide KEY

... 3. Describe the life cycle of a high mass star. (Tell the steps in the life cycle.) The steps are: nebula, mature star, red SUPER giant, then supernova. Then it can become a nebula again or either a neutron star or a black hole. ...
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Future of an expanding universe

Observations suggest that the expansion of the universe will continue forever. If so, the universe will cool as it expands, eventually becoming too cold to sustain life. For this reason, this future scenario is popularly called the Big Freeze.If dark energy—represented by the cosmological constant, a constant energy density filling space homogeneously, or scalar fields, such as quintessence or moduli, dynamic quantities whose energy density can vary in time and space—accelerates the expansion of the universe, then the space between clusters of galaxies will grow at an increasing rate. Redshift will stretch ancient, incoming photons (even gamma rays) to undetectably long wavelengths and low energies. Stars are expected to form normally for 1012 to 1014 (1–100 trillion) years, but eventually the supply of gas needed for star formation will be exhausted. And as existing stars run out of fuel and cease to shine, the universe will slowly and inexorably grow darker, one star at a time. According to theories that predict proton decay, the stellar remnants left behind will disappear, leaving behind only black holes, which themselves eventually disappear as they emit Hawking radiation. Ultimately, if the universe reaches a state in which the temperature approaches a uniform value, no further work will be possible, resulting in a final heat death of the universe.
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