Week 11 Answers
... 1. The Sun will spend 10 billion years on the main sequence (i.e. converting H into He in its central core). Another star has a mass of 20 solar masses, and a luminosity of 100,000 solar luminosities. How long will it survive on the main sequence? Use the fact that a star's lifetime is proportional ...
... 1. The Sun will spend 10 billion years on the main sequence (i.e. converting H into He in its central core). Another star has a mass of 20 solar masses, and a luminosity of 100,000 solar luminosities. How long will it survive on the main sequence? Use the fact that a star's lifetime is proportional ...
Stars - Red, Blue, Old, New pt.3
... • The Sun (and other stars less than about 10 solar masses) will never be a supergiant. • Stars more massive than about 10 solar masses do get to be supergiants. • The massive stars fuse elements up to iron and they do it fast…timescales 1000s of years. ...
... • The Sun (and other stars less than about 10 solar masses) will never be a supergiant. • Stars more massive than about 10 solar masses do get to be supergiants. • The massive stars fuse elements up to iron and they do it fast…timescales 1000s of years. ...
Part 1- The Basics
... • The apparent displacement of a nearby object against a distant fixed background from two different viewpoints. ...
... • The apparent displacement of a nearby object against a distant fixed background from two different viewpoints. ...
Star Of Wonder
... into space. The remaining portion of the star then collapses still further to become either a "neutron star" just a few kilometers across, or a "black hole" that is far smaller than even the tiny nucleus of an atom and yet contains the entire mass of the star. Earth, including your body, is formed p ...
... into space. The remaining portion of the star then collapses still further to become either a "neutron star" just a few kilometers across, or a "black hole" that is far smaller than even the tiny nucleus of an atom and yet contains the entire mass of the star. Earth, including your body, is formed p ...
Implications of the Search and Discovery
... Where to look in galaxy? • Disk region of galaxy – Population I stars that have access to heavy elements during formation • Star like our Sun worked at least once ...
... Where to look in galaxy? • Disk region of galaxy – Population I stars that have access to heavy elements during formation • Star like our Sun worked at least once ...
Stellar Evolution and the HR Diagram – Study Guide
... 10. Draw the evolutionary path of our Sun. Start by locating it’s present position on the graph and then indicate where it will be as it ages, and finally what part of the graph it ends in. It would start above Red Dwarfs, but below Giants; it would move down and left to the main sequence (where it ...
... 10. Draw the evolutionary path of our Sun. Start by locating it’s present position on the graph and then indicate where it will be as it ages, and finally what part of the graph it ends in. It would start above Red Dwarfs, but below Giants; it would move down and left to the main sequence (where it ...
Mon Nov 18, 2013 THE MOON`S TIDAL LOCK The old gibbous
... Edwin Hubble on this date, November 20th, in 1889. Both these men made remarkable discoveries about our Universe. Shapley discovered that our sun and solar system were not at the center of the Milky Way Galaxy, but instead a little over halfway out, and that the Milky Way was much larger than anyone ...
... Edwin Hubble on this date, November 20th, in 1889. Both these men made remarkable discoveries about our Universe. Shapley discovered that our sun and solar system were not at the center of the Milky Way Galaxy, but instead a little over halfway out, and that the Milky Way was much larger than anyone ...
PDF Format
... relative to starss (1 year cycle) Today the Sun is “in” Sagittarius, next month in Capricornus, etc. Sun’s path on the celesttial sphere = ecliptic Constellations through which ...
... relative to starss (1 year cycle) Today the Sun is “in” Sagittarius, next month in Capricornus, etc. Sun’s path on the celesttial sphere = ecliptic Constellations through which ...
Celestial Motions
... Earth determines which constellations remain below the horizon. (They depend on time of year because Earth’s orbit changes the apparent location of the Sun among the stars.) ...
... Earth determines which constellations remain below the horizon. (They depend on time of year because Earth’s orbit changes the apparent location of the Sun among the stars.) ...
Additional Images
... the stars reached its Roche volume) eclipsing binary of a cream-white color. The brightness varies from 3.4 mag to 4.3 mag every twelve days and 22 hours. One of the two stars of this system is filling its Roche surface and ellipsoidally deformed. Beta Lyrae is the prototype of this class of eclipsi ...
... the stars reached its Roche volume) eclipsing binary of a cream-white color. The brightness varies from 3.4 mag to 4.3 mag every twelve days and 22 hours. One of the two stars of this system is filling its Roche surface and ellipsoidally deformed. Beta Lyrae is the prototype of this class of eclipsi ...
Chapter 10
... not constant. Closer to the sun it speeds up The time it takes the planet to revolve around the Sun is related to how far away it is from the Sun ...
... not constant. Closer to the sun it speeds up The time it takes the planet to revolve around the Sun is related to how far away it is from the Sun ...
Chapter 12
... This is the middle of three chapters that tell the story of stars. The preceding chapter told us how stars form, and the next chapter tells us how stars die. This chapter is the heart of the story—how stars live. ...
... This is the middle of three chapters that tell the story of stars. The preceding chapter told us how stars form, and the next chapter tells us how stars die. This chapter is the heart of the story—how stars live. ...
Stellar Evolution
... how a star’s life and death will proceed. • We can “weigh” stars that are in binary systems (two stars orbiting each other). Fortunately, most stars fall into this category. ...
... how a star’s life and death will proceed. • We can “weigh” stars that are in binary systems (two stars orbiting each other). Fortunately, most stars fall into this category. ...
Sem one 2011 review KEY
... Earth’s position over a year changes what we can see because it is daylight when some constellations are in the sky. Those overhead during the day change from season to season. 39. The constellation’s locations are very predictable, with little change from day to day. Planets, on the other hand, see ...
... Earth’s position over a year changes what we can see because it is daylight when some constellations are in the sky. Those overhead during the day change from season to season. 39. The constellation’s locations are very predictable, with little change from day to day. Planets, on the other hand, see ...
Chapter 14 The Milky Way Galaxy
... The galactic halo and globular clusters formed very early; the halo is essentially spherical. All the stars in the halo are very old, and there is no gas and dust. The galactic disk is where the youngest stars are, as well as star formation regions – emission nebulae, large clouds of gas and ...
... The galactic halo and globular clusters formed very early; the halo is essentially spherical. All the stars in the halo are very old, and there is no gas and dust. The galactic disk is where the youngest stars are, as well as star formation regions – emission nebulae, large clouds of gas and ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.