Earth`s Motion and Seasons
... distance to a galaxy and its speed. Hubble’s Law states the farther away a galaxy is the faster it is moving away from us. Hubble’s law strongly supports the big bang. ...
... distance to a galaxy and its speed. Hubble’s Law states the farther away a galaxy is the faster it is moving away from us. Hubble’s law strongly supports the big bang. ...
star
... temperature, color, and absolute brightness of a sample of stars. They are used to estimate the sizes of stars and their distances, and infer how stars change over time. If two stars a ...
... temperature, color, and absolute brightness of a sample of stars. They are used to estimate the sizes of stars and their distances, and infer how stars change over time. If two stars a ...
Stellar Evolution - Hays High Indians
... – More massive stars can completely form in a few hundred thousand years ...
... – More massive stars can completely form in a few hundred thousand years ...
Measuring Stars
... sequence and more higher mass stars moved away from MS, likely it is 100 million years old. ...
... sequence and more higher mass stars moved away from MS, likely it is 100 million years old. ...
A105 Stars and Galaxies
... hydrogen into helium in their cores •Massive main-sequence stars are hot (blue) and luminous •Less massive stars are cooler (yellow or red) and fainter ...
... hydrogen into helium in their cores •Massive main-sequence stars are hot (blue) and luminous •Less massive stars are cooler (yellow or red) and fainter ...
Document
... Pluto first discovered in 1930 by Clyde W. Tombaugh A full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. Pluto has been demoted to be a “Dwar ...
... Pluto first discovered in 1930 by Clyde W. Tombaugh A full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. Pluto has been demoted to be a “Dwar ...
Stars and Galaxies
... • Polaris/North Star, 700+ light-years – Important in navigation – End of Little Dipper which is part of: – Ursa Minor/Little Bear – constellation of stars • Group of stars which people can see at one time • Imaginary figures ...
... • Polaris/North Star, 700+ light-years – Important in navigation – End of Little Dipper which is part of: – Ursa Minor/Little Bear – constellation of stars • Group of stars which people can see at one time • Imaginary figures ...
Red Giant Red Giant White Giant Red Giant White Giant White Giant
... High mass star that consumes hydrogen rapidly. The star’s enormous weight crushes the core with so much pressure that fusion is possible. Mass: 4 - 10 SM StarPower Points: 9 ...
... High mass star that consumes hydrogen rapidly. The star’s enormous weight crushes the core with so much pressure that fusion is possible. Mass: 4 - 10 SM StarPower Points: 9 ...
Reach for the Stars B
... 4. What will eventually cause the dust and gas in this DSO to dissipate? 5. Which DSO, a very bright radio source, is depicted in Image [3]? 6. Why might this DSO not have been visible in the past? 7. Which DSO, a massive star-forming region, is depicted in Image [4]? 8. [T10] What is the common nic ...
... 4. What will eventually cause the dust and gas in this DSO to dissipate? 5. Which DSO, a very bright radio source, is depicted in Image [3]? 6. Why might this DSO not have been visible in the past? 7. Which DSO, a massive star-forming region, is depicted in Image [4]? 8. [T10] What is the common nic ...
here
... soon as the nuclear fuel is exhausted, such that compression doesn’t trigger any new nuclear reactions, the gas collapses to form a degenerate core mostly consisting of carbon, oxygen and nitrogen. Later, after the star has expelled its gaseous envelope in form of massive stellar winds and a planeta ...
... soon as the nuclear fuel is exhausted, such that compression doesn’t trigger any new nuclear reactions, the gas collapses to form a degenerate core mostly consisting of carbon, oxygen and nitrogen. Later, after the star has expelled its gaseous envelope in form of massive stellar winds and a planeta ...
Milky Way
... Halo • In the early 20th century Cepheid variables could be used to map the globular clusters. – Harlow Shapley’s model – Form a sphere – center at center of galaxy – The clusters for the galactic halo ...
... Halo • In the early 20th century Cepheid variables could be used to map the globular clusters. – Harlow Shapley’s model – Form a sphere – center at center of galaxy – The clusters for the galactic halo ...
The Ever Expanding Universe: Part II
... twice, once now and once six months from now. This is the longest baseline astronomers can use without venturing into space! One angle measurement is made now to the star and another six months later. Notice that the stars position will move relative to background stars when angle measurements are m ...
... twice, once now and once six months from now. This is the longest baseline astronomers can use without venturing into space! One angle measurement is made now to the star and another six months later. Notice that the stars position will move relative to background stars when angle measurements are m ...
From Big bang to lives on planets
... –About 85% of known exoplanets are detected by the technique –The Doppler method is sensitive to massive planets around relatively nearby stars Advantages of Transits –Transits offer the only way we currently have to make a direct measurement of the radii of exoplanets –Gives an estimate of the dens ...
... –About 85% of known exoplanets are detected by the technique –The Doppler method is sensitive to massive planets around relatively nearby stars Advantages of Transits –Transits offer the only way we currently have to make a direct measurement of the radii of exoplanets –Gives an estimate of the dens ...
Stars
... know that a basketball is much larger than a baseball. But what seems to happen if you friend carries the basketball to the other end of the field? The basketball looks smaller than the baseball to you. The basketball does not really get smaller. It looks smaller because it is much farther away. ...
... know that a basketball is much larger than a baseball. But what seems to happen if you friend carries the basketball to the other end of the field? The basketball looks smaller than the baseball to you. The basketball does not really get smaller. It looks smaller because it is much farther away. ...
The “Life” of Non-living Stars - Etiwanda E
... helium has begun to fuse and the center of the star shrinks. The Sun will grow very large and will cool down! ...
... helium has begun to fuse and the center of the star shrinks. The Sun will grow very large and will cool down! ...
solar system formation and gal
... The Centre of the Milky Way Galaxy • Using radio waves again, astronomers discovered that the centre of the Milky Way is surrounded by a bulge of stars (a sphere of globular clusters) • The shape of the Milky way galaxy was determined based on its disc-like shape and central bulge of stars, astrono ...
... The Centre of the Milky Way Galaxy • Using radio waves again, astronomers discovered that the centre of the Milky Way is surrounded by a bulge of stars (a sphere of globular clusters) • The shape of the Milky way galaxy was determined based on its disc-like shape and central bulge of stars, astrono ...
Discovering The Universe for Yourself
... • Are stars still present in the sky during the day time? – Yes, we just can’t see them because their dim light is overwhelmed by the brightness of the sun during the day. ...
... • Are stars still present in the sky during the day time? – Yes, we just can’t see them because their dim light is overwhelmed by the brightness of the sun during the day. ...
Ages of Star Clusters - Indiana University Astronomy
... Estimating the Ages of Star Clusters Massive stars burn their nuclear fuel faster than lower mass stars and leave the main sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less mass ...
... Estimating the Ages of Star Clusters Massive stars burn their nuclear fuel faster than lower mass stars and leave the main sequence sooner. In a cluster in which all the stars formed at the same time, the stars “peel off” the main sequence from the top, leaving only progressively less and less mass ...
1 Star Formation and Main Sequence Evolution Condensation
... towards the main sequence Mass loss can only occur perpendicular to the protoplanetary disc leading to the formation of a ...
... towards the main sequence Mass loss can only occur perpendicular to the protoplanetary disc leading to the formation of a ...
fall_2000_final
... B. globular star clusters defined a flat disk-shaped region. C. there wasn’t a black hole nearby. D. pulsars had a uniform distribution around the sky. E. pulsars had a non-uniform distribution around the sky. 10. The argument was made by Frank Drake that the stars most likely to have planets with e ...
... B. globular star clusters defined a flat disk-shaped region. C. there wasn’t a black hole nearby. D. pulsars had a uniform distribution around the sky. E. pulsars had a non-uniform distribution around the sky. 10. The argument was made by Frank Drake that the stars most likely to have planets with e ...
FUN THINGS TO DO
... with dragons. There is no dinosaur constellation, but there is a dragon in the northern sky! Its name is Draco the dragon, and it’s easy to find if you know its neighbors. Locate the Big Dipper in the night sky. Then use the front “pointer” stars to find the North Star. We know that the North Star i ...
... with dragons. There is no dinosaur constellation, but there is a dragon in the northern sky! Its name is Draco the dragon, and it’s easy to find if you know its neighbors. Locate the Big Dipper in the night sky. Then use the front “pointer” stars to find the North Star. We know that the North Star i ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.