Unit 1
... • Rotation of the cloud forces it into a disk-shape • After a million years or so, the center of the disk develops a hot, dense core called a protostar ...
... • Rotation of the cloud forces it into a disk-shape • After a million years or so, the center of the disk develops a hot, dense core called a protostar ...
The Celestial Sphere
... "The Sun is just one among a hundred billion stars in the Milky Way Galaxy, each with its own cosmic tale to tell." — Timothy Ferris, in the film Seeing in the Dark ...
... "The Sun is just one among a hundred billion stars in the Milky Way Galaxy, each with its own cosmic tale to tell." — Timothy Ferris, in the film Seeing in the Dark ...
Doppler Effect - SAVE MY EXAMS!
... would be detected from a source approaching the observer at a speed of 105 km s–1. wavelength of atomic hydrogen measured in a laboratory = 0.21121 m. ...
... would be detected from a source approaching the observer at a speed of 105 km s–1. wavelength of atomic hydrogen measured in a laboratory = 0.21121 m. ...
Astronomy 103 Exam 2 Review
... Two observers have two clocks, one at rest on the Earth’s surface and one at rest high above the Earth’s surface. Which statement is correct? A. Each observer will see the other's clock to be running slow with respect to the observer's own clock. B. Each observer will see the other's clock ...
... Two observers have two clocks, one at rest on the Earth’s surface and one at rest high above the Earth’s surface. Which statement is correct? A. Each observer will see the other's clock to be running slow with respect to the observer's own clock. B. Each observer will see the other's clock ...
HR Diagram of Messier 80 using Hubble Space Telescope Data
... (4) Is the F450W a “red”, “green” or “blue” filter, meaning what color would things be if you looked through the filter at something? (5) Is the F814W a “red”, “green” or “blue” filter? (6) Is there any overlap to the filters? (7) How many other filters does the Hubble Space Telescope use? (8) Name ...
... (4) Is the F450W a “red”, “green” or “blue” filter, meaning what color would things be if you looked through the filter at something? (5) Is the F814W a “red”, “green” or “blue” filter? (6) Is there any overlap to the filters? (7) How many other filters does the Hubble Space Telescope use? (8) Name ...
The Star of Bethlehem: a Type Ia/Ic Supernova in the Andromeda
... home city of Andromeda, princess of Jaffa. Any astronomer of the first decade B.C. would immediately associate an event in the constellation Andromeda with Palestine. Our system of constellations is essentially that of Ptolemy, which can be traced back at least to Eudoxus of Cnidus (c. 350 B.C.) (th ...
... home city of Andromeda, princess of Jaffa. Any astronomer of the first decade B.C. would immediately associate an event in the constellation Andromeda with Palestine. Our system of constellations is essentially that of Ptolemy, which can be traced back at least to Eudoxus of Cnidus (c. 350 B.C.) (th ...
Star Formation, HR Diagram, and the Main Sequence (Professor
... Radial velocities are measured using the Doppler Shift of the star's spectrum: •Star moving towards Earth: Blueshift •Star moving away from Earth: Redshift •Star moving across our line of sight: No Shift In all cases, the Radial Velocity is Independent of Distance. ...
... Radial velocities are measured using the Doppler Shift of the star's spectrum: •Star moving towards Earth: Blueshift •Star moving away from Earth: Redshift •Star moving across our line of sight: No Shift In all cases, the Radial Velocity is Independent of Distance. ...
Explores Angular Size - Chandra X
... how big something is in kilometers, instead of how big it appears to be in angular measure. To get this information, all we need to know is how far away the object is from us. The moon is 324,000 kilometers away, and Venus is about 40 million kilometers away from Earth at its closest distance. The f ...
... how big something is in kilometers, instead of how big it appears to be in angular measure. To get this information, all we need to know is how far away the object is from us. The moon is 324,000 kilometers away, and Venus is about 40 million kilometers away from Earth at its closest distance. The f ...
Neutron Star - Perry Local Schools
... of 1.4 to 3 solar masses, the remnant can become a neutron star. – If the leftover core has a mass that is greater than three solar masses, it will collapse to form a black ...
... of 1.4 to 3 solar masses, the remnant can become a neutron star. – If the leftover core has a mass that is greater than three solar masses, it will collapse to form a black ...
STAR UNIT FLASH BACKS
... red, that means that it is moving AWAY from us (due to Red Shift). 2. How long would it take for an F-22 Raptor jet flying at top speed (1,500 miles per hour) to fly from the earth to the sun? a.) 8 minutes ...
... red, that means that it is moving AWAY from us (due to Red Shift). 2. How long would it take for an F-22 Raptor jet flying at top speed (1,500 miles per hour) to fly from the earth to the sun? a.) 8 minutes ...
November 2005 - Otterbein University
... Aldebaran, Algol, etc.) • Since the 17th century we use a scheme that lists stars by constellation – in order of their apparent brightness – labeled alphabetically in Greek alphabet – Alpha Centauri is the brightest star in constellation Centaurus ...
... Aldebaran, Algol, etc.) • Since the 17th century we use a scheme that lists stars by constellation – in order of their apparent brightness – labeled alphabetically in Greek alphabet – Alpha Centauri is the brightest star in constellation Centaurus ...
The Naked Eye Era
... gave him a chance to test this assumption. He realized that if the new star was closer than the Moon, as widely believed, he should see parallax as the Earth’s daily rotation carried him from east to west. And if it belonged to the realm of the planets he should also see proper motions from day to d ...
... gave him a chance to test this assumption. He realized that if the new star was closer than the Moon, as widely believed, he should see parallax as the Earth’s daily rotation carried him from east to west. And if it belonged to the realm of the planets he should also see proper motions from day to d ...
star - TeacherWeb
... brightly. Our Sun is a star. Most stars have partner stars. A group of two stars are known as binaries. Ancient Greeks and Romans observed patterns of stars in the sky CONSTELLATIONS They imagined that the constellations represented mythological creatures. In reality the stars in a constellation m ...
... brightly. Our Sun is a star. Most stars have partner stars. A group of two stars are known as binaries. Ancient Greeks and Romans observed patterns of stars in the sky CONSTELLATIONS They imagined that the constellations represented mythological creatures. In reality the stars in a constellation m ...
Module code: AA1
... 3 stars (Sirius A, Alpha Centauri A and Procyon) appear on both lists. They are very close to the earth and for that reason their below average luminosity is sufficient to make them appear on the list of the 20 brightest stars. The sample group of the nearest stars is more representative than the gr ...
... 3 stars (Sirius A, Alpha Centauri A and Procyon) appear on both lists. They are very close to the earth and for that reason their below average luminosity is sufficient to make them appear on the list of the 20 brightest stars. The sample group of the nearest stars is more representative than the gr ...
Chapter 02
... appear to be close to one another Usually, this is only a projection effect. The stars of a constellation may be located at very different distances from us. An asterism is a part of a constellation. (The Big Dipper is part of Ursa Major) ...
... appear to be close to one another Usually, this is only a projection effect. The stars of a constellation may be located at very different distances from us. An asterism is a part of a constellation. (The Big Dipper is part of Ursa Major) ...
Lecture 10: The Milky Way
... We live in a galaxy that has three major components of different ages and metallicities. Disc (thin+thick) – about 25kpc in radius, only about 1kpc thick. Most of the stars are young (0-8 Gyr), and have about the same metal content as the Sun. Total stellar mass of about 6x1010M. Bulge – a mostly o ...
... We live in a galaxy that has three major components of different ages and metallicities. Disc (thin+thick) – about 25kpc in radius, only about 1kpc thick. Most of the stars are young (0-8 Gyr), and have about the same metal content as the Sun. Total stellar mass of about 6x1010M. Bulge – a mostly o ...
Test 1 - Brock physics
... 6. Emission nebulae appear (a) yellow, because they emit a significant amount of yellow electromagnetic radiation. (b) blue, because they emit a significant amount of blue and ultraviolet electromagnetic radiation. (c) red, because electrons recombine with protons and then make transitions to lower ...
... 6. Emission nebulae appear (a) yellow, because they emit a significant amount of yellow electromagnetic radiation. (b) blue, because they emit a significant amount of blue and ultraviolet electromagnetic radiation. (c) red, because electrons recombine with protons and then make transitions to lower ...
Distance to the SMC
... will determine those values from the light curves of those four stars before graphing all the data. The data pipeline was a very long one. You will work with light curves but they are at the end of that pipeline with a most of the work coming well before them. Here is how they were produced. The SMC ...
... will determine those values from the light curves of those four stars before graphing all the data. The data pipeline was a very long one. You will work with light curves but they are at the end of that pipeline with a most of the work coming well before them. Here is how they were produced. The SMC ...
Ch 3 PPT - Blountstown Middle School
... • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their ...
... • When a star’s hydrogen supply is nearly gone, the star leaves the main sequence and begins the next stage of its life cycle. • All stars form in the same way, but stars die in different ways, depending on their ...
Corona Australis
Corona Australis /kɵˈroʊnə ɒˈstreɪlɨs/ or Corona Austrina /kɵˈroʊnə ɒˈstraɪnə/ is a constellation in the Southern Celestial Hemisphere. Its Latin name means ""southern crown"", and it is the southern counterpart of Corona Borealis, the northern crown. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The Ancient Greeks saw Corona Australis as a wreath rather than a crown and associated it with Sagittarius or Centaurus. Other cultures have likened the pattern to a turtle, ostrich nest, a tent, or even a hut belonging to a rock hyrax.Although fainter than its namesake, the oval- or horseshoe-shaped pattern of its brighter stars renders it distinctive. Alpha and Beta Coronae Australis are the two brightest stars with an apparent magnitude of around 4.1. Epsilon Coronae Australis is the brightest example of a W Ursae Majoris variable in the southern sky. Lying alongside the Milky Way, Corona Australis contains one of the closest star-forming regions to our Solar System—a dusty dark nebula known as the Corona Australis Molecular Cloud, lying about 430 light years away. Within it are stars at the earliest stages of their lifespan. The variable stars R and TY Coronae Australis light up parts of the nebula, which varies in brightness accordingly.