Name: Date:
... 5. If a star’s spectrum is shifted toward the blue end of the spectrum, (blue shift) which way are the stars moving? ______________________________________________ _________________________________________________________________________ 6. If a star’s spectrum is shifted toward the red end of the s ...
... 5. If a star’s spectrum is shifted toward the blue end of the spectrum, (blue shift) which way are the stars moving? ______________________________________________ _________________________________________________________________________ 6. If a star’s spectrum is shifted toward the red end of the s ...
Review 3 - Physics and Astronomy
... 2. Detecting parallaxes means that Earth orbits around Sun 3. Maximum parallactic shift (two positions of the Earth’s orbit 6 months apart) ...
... 2. Detecting parallaxes means that Earth orbits around Sun 3. Maximum parallactic shift (two positions of the Earth’s orbit 6 months apart) ...
The Life of a Star
... it cools down further, the star becomes a black dwarf. Now, the star is finished with its life cycle. High-mass stars explode after their red giant stage. If the star is massive enough, it will eventually become a black hole. Other high-mass red giants may become neutron stars. A neutron star is usu ...
... it cools down further, the star becomes a black dwarf. Now, the star is finished with its life cycle. High-mass stars explode after their red giant stage. If the star is massive enough, it will eventually become a black hole. Other high-mass red giants may become neutron stars. A neutron star is usu ...
6.1 Sun - TeacherWeb
... The sun is a star. A star is an object that produces its own energy including heat and light. o The planets and other objects in the solar system are not stars o They do not produce light. Sun is an averaged sized star. Larger stars produce ten million times more energy. Smaller stars produce 1 ...
... The sun is a star. A star is an object that produces its own energy including heat and light. o The planets and other objects in the solar system are not stars o They do not produce light. Sun is an averaged sized star. Larger stars produce ten million times more energy. Smaller stars produce 1 ...
Star Constellations
... some stars are smaller than our Sun, and some are larger. Except for our own Sun, all stars are so far away that they only look like single points—even through a telescope. Constellations ...
... some stars are smaller than our Sun, and some are larger. Except for our own Sun, all stars are so far away that they only look like single points—even through a telescope. Constellations ...
Luminosity Classes
... These are called Variable Stars. The change in luminosity is due to a change in size. (Though temperature changes too.) ...
... These are called Variable Stars. The change in luminosity is due to a change in size. (Though temperature changes too.) ...
Friday, Oct. 17
... Lifetime of the Sun We could figure out how long the Sun will remain a mainsequence star by knowing the rate at which it is generating energy by nuclear fusion (which must equal the rate it is radiating energy from its surface) and calculating the rate at which it is converting hydrogen to helium t ...
... Lifetime of the Sun We could figure out how long the Sun will remain a mainsequence star by knowing the rate at which it is generating energy by nuclear fusion (which must equal the rate it is radiating energy from its surface) and calculating the rate at which it is converting hydrogen to helium t ...
Week 8
... Most planets that have been discovered around other stars are thought to be like Jupiter. The Sun is about 11 times the size of Jupiter. What fraction of the Sun’s light would get blocked if we were watching Jupiter transit the Sun from far away? A. 99% B. 90% ...
... Most planets that have been discovered around other stars are thought to be like Jupiter. The Sun is about 11 times the size of Jupiter. What fraction of the Sun’s light would get blocked if we were watching Jupiter transit the Sun from far away? A. 99% B. 90% ...
I. Layers of the Sun
... The sun is a G2 star. The temperature of the core is 15.6 million Kelvin. The sun is approximately 4.5 billion years old. The sun emits a low-density stream of charged particles known as the solar wind. Our sun is unique, not part of a binary system, 2 stars orbiting each other. ...
... The sun is a G2 star. The temperature of the core is 15.6 million Kelvin. The sun is approximately 4.5 billion years old. The sun emits a low-density stream of charged particles known as the solar wind. Our sun is unique, not part of a binary system, 2 stars orbiting each other. ...
Document
... molecular cloud reaches a critical mass it begins to collapse under its own gravity. The initial collapse takes about 100,000 years. After that time the star reaches a surface temperature similar to that of a main sequence star of the same mass and becomes visible. It is now a T Tauri star. • T Taur ...
... molecular cloud reaches a critical mass it begins to collapse under its own gravity. The initial collapse takes about 100,000 years. After that time the star reaches a surface temperature similar to that of a main sequence star of the same mass and becomes visible. It is now a T Tauri star. • T Taur ...
Course Expectations
... How stars create and distribute heavy elements The difference between absolute and apparent magnitude How stars evolve off the main sequence on the HR Diagram The types of stars High mass stars produce supernovae, neutron stars and black holes Low mass stars produce white dwarfs, and planetary nebul ...
... How stars create and distribute heavy elements The difference between absolute and apparent magnitude How stars evolve off the main sequence on the HR Diagram The types of stars High mass stars produce supernovae, neutron stars and black holes Low mass stars produce white dwarfs, and planetary nebul ...
Stars…Giants, Supergiants, Dwarfs….
... atomic energy levels, instead of being crisp and unique, get “fuzzed out”. “Fuzzed out” is technical terminology for a change in the energy which depends on how close the neighbors are, how many of them there are, what direction they are,…… ...
... atomic energy levels, instead of being crisp and unique, get “fuzzed out”. “Fuzzed out” is technical terminology for a change in the energy which depends on how close the neighbors are, how many of them there are, what direction they are,…… ...
Luminosity
... The Luminosity of a star is the energy that it releases per second. Sun has a luminosity of 3.90x1026 W (often written as L): it emits 3.90x1026 joules per second in all directions. The energy that arrives at the Earth is only a very small amount when compared will the total energy released by the ...
... The Luminosity of a star is the energy that it releases per second. Sun has a luminosity of 3.90x1026 W (often written as L): it emits 3.90x1026 joules per second in all directions. The energy that arrives at the Earth is only a very small amount when compared will the total energy released by the ...
Earth Rotation and Revolution Powerpoint
... are visible at night only during certain seasons. • Constellations are visible when the dark side of Earth (away from sun) faces toward the constellation. ...
... are visible at night only during certain seasons. • Constellations are visible when the dark side of Earth (away from sun) faces toward the constellation. ...
Astronomy Homework - Life
... 18. Low mass stars (can/cannot) fuse carbon in their cores because they (do/do not) have enough mass to allow temperatures high enough for carbon fusion. 19. The temperature at which carbon will fuse is (100,000,000°°K/600,000,000°°K). 20. The carbon core of a star becomes degenerate which means (i ...
... 18. Low mass stars (can/cannot) fuse carbon in their cores because they (do/do not) have enough mass to allow temperatures high enough for carbon fusion. 19. The temperature at which carbon will fuse is (100,000,000°°K/600,000,000°°K). 20. The carbon core of a star becomes degenerate which means (i ...
1. What is parallax? What unit is it measured in? 1a. Parallax is the
... of how bright they appear in the sky starting with the least bright. 22a. D, C, E, F, A, B. 23. Stars A, B, C, D, E have absolute magnitudes -2, 0, 3, 5, 1 respectively. Put them in order of how bright they appear in the sky starting with the least bright. 23a. Cant do this since we dont know their ...
... of how bright they appear in the sky starting with the least bright. 22a. D, C, E, F, A, B. 23. Stars A, B, C, D, E have absolute magnitudes -2, 0, 3, 5, 1 respectively. Put them in order of how bright they appear in the sky starting with the least bright. 23a. Cant do this since we dont know their ...
Unit 8 Chapter 30
... How bright stars would appear if they were the same distance away from Earth or 32.6 Light years away (10 parsecs). Our sun would be a 4.8, average star, Rigel has an Absolute Magnitude of -6.4 which makes it appear brighter than most stars. Remember, all stars are not the same distance away, theref ...
... How bright stars would appear if they were the same distance away from Earth or 32.6 Light years away (10 parsecs). Our sun would be a 4.8, average star, Rigel has an Absolute Magnitude of -6.4 which makes it appear brighter than most stars. Remember, all stars are not the same distance away, theref ...
hwk06ans
... 0.5Msun : L 0.08 Lsun , T0 roughly 13 million K. 5 Msun : L 390 Lsun , T0 roughly 20 or 21 million K. Thus a ratio of 5000 in luminosity corresponds to a ratio of only 1.6 in T0 . Note: T0 M / R is important but it's also very rough. It depends on assuming homologous interior structure an ...
... 0.5Msun : L 0.08 Lsun , T0 roughly 13 million K. 5 Msun : L 390 Lsun , T0 roughly 20 or 21 million K. Thus a ratio of 5000 in luminosity corresponds to a ratio of only 1.6 in T0 . Note: T0 M / R is important but it's also very rough. It depends on assuming homologous interior structure an ...
1992M3. A spacecraft of mass 1,000 kilograms is in an elliptical orbit
... 1992M3. A spacecraft of mass 1,000 kilograms is in an elliptical orbit about the Earth, as shown above. At point A the spacecraft is at a distance r A = 1.2 x 107 meters from the center of the Earth and its velocity, of magnitude VA = 7.1 x 103 meters per second, is perpendicular to the line connect ...
... 1992M3. A spacecraft of mass 1,000 kilograms is in an elliptical orbit about the Earth, as shown above. At point A the spacecraft is at a distance r A = 1.2 x 107 meters from the center of the Earth and its velocity, of magnitude VA = 7.1 x 103 meters per second, is perpendicular to the line connect ...
Day 1: How to Describe the Sky The Motions of the Stars
... • When an astronomer describes the altitude of something in the local sky, he or she means • A: how high something is in the sky, in units of miles or kilometers. • B: how high something is in the sky, in units of degrees. • C: the direction toward something North, South, East, or West. ...
... • When an astronomer describes the altitude of something in the local sky, he or she means • A: how high something is in the sky, in units of miles or kilometers. • B: how high something is in the sky, in units of degrees. • C: the direction toward something North, South, East, or West. ...
Winter 2014
... After this process ends, a star cluster is left behind. The Pleiades star cluster is close enough that we can see the brightest several stars by eye. Returning to Orion, we can follow the Belt down and to the left and find ourselves at the brightest star in Earth’s night sky, Sirius. Sirius is one o ...
... After this process ends, a star cluster is left behind. The Pleiades star cluster is close enough that we can see the brightest several stars by eye. Returning to Orion, we can follow the Belt down and to the left and find ourselves at the brightest star in Earth’s night sky, Sirius. Sirius is one o ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.