1. Base your answer to the following question
... (1) the distance traveled by light in one year (2) the time it takes light to travel one year (3) the time it takes light to go once around the Earth's orbit (4) the distance the Earth moves in one year ...
... (1) the distance traveled by light in one year (2) the time it takes light to travel one year (3) the time it takes light to go once around the Earth's orbit (4) the distance the Earth moves in one year ...
STAAR Review – Week Ten
... 12. In the center of the Milky Way is a large bulge of stars. Within this bulge lies a black hole. The Sun is located – a. outside of the Milky Way. b. in the large bulge of stars near the center of the Milky Way. c. in the black hole in the center of the Milky Way. d. near the edge of the Milky Way ...
... 12. In the center of the Milky Way is a large bulge of stars. Within this bulge lies a black hole. The Sun is located – a. outside of the Milky Way. b. in the large bulge of stars near the center of the Milky Way. c. in the black hole in the center of the Milky Way. d. near the edge of the Milky Way ...
Could Planets orbiting Red Dwarf stars support Oxygenic
... Although time-wise the evolution (on Earth) from first land life to Intelligent Civilizations was short (0.5Gy) it was a highly unlikely, statistically improbable event. ...
... Although time-wise the evolution (on Earth) from first land life to Intelligent Civilizations was short (0.5Gy) it was a highly unlikely, statistically improbable event. ...
Life Cycle of Stars
... believe that the Milky Way and Andromeda may collide in approximately 5 billion years! ...
... believe that the Milky Way and Andromeda may collide in approximately 5 billion years! ...
Planetary Configurations
... • At 4 LY distance, it takes sunlight 4 years to reach nearest star. Light takes 150,000 years to traverse the entire Milky Way. • Traveling at 1% of c, it would take 400 years to reach nearest star. • Moral: space is vast, and travel is slow • Go faster! Tachyons, warp drive, wormholes ...
... • At 4 LY distance, it takes sunlight 4 years to reach nearest star. Light takes 150,000 years to traverse the entire Milky Way. • Traveling at 1% of c, it would take 400 years to reach nearest star. • Moral: space is vast, and travel is slow • Go faster! Tachyons, warp drive, wormholes ...
Milky Way structure
... labeled illustration above shows the location of the newly discovered Canis Major dwarf and its associated tidal stream of material in relation to our Milky Way Galaxy. The Canis Major dwarf and other satellite galaxies are slowly being gravitationally ripped apart as they travel around and through ...
... labeled illustration above shows the location of the newly discovered Canis Major dwarf and its associated tidal stream of material in relation to our Milky Way Galaxy. The Canis Major dwarf and other satellite galaxies are slowly being gravitationally ripped apart as they travel around and through ...
Source: https://www
... begins stable hydrogen fusion on the Main Sequence, it will lie in one particular location in the HR diagram, known as the Zero Age Main Sequence, or ZAMS. As the star ages, though, it will, in general, cool off a bit and become more luminous. As its luminosity changes, the location of its habitable ...
... begins stable hydrogen fusion on the Main Sequence, it will lie in one particular location in the HR diagram, known as the Zero Age Main Sequence, or ZAMS. As the star ages, though, it will, in general, cool off a bit and become more luminous. As its luminosity changes, the location of its habitable ...
Oct - Seattle Astronomical Society
... over time. This distant dwarf planet passed aphelion around 1977 and is falling back toward perihelion at just less than an AU per year. I wonder when an enterprising astrophotographer of SAS will be able to capture an image of (136199) Eris. Coincidentally, the second TNO discovered (after Pluto), ...
... over time. This distant dwarf planet passed aphelion around 1977 and is falling back toward perihelion at just less than an AU per year. I wonder when an enterprising astrophotographer of SAS will be able to capture an image of (136199) Eris. Coincidentally, the second TNO discovered (after Pluto), ...
PHYSICS 1500 - ASTRONOMY TOTAL
... (c) A standard measure of luminosity, in units of the solar luminosity. (d) A standard measure of luminosity, in units of the Milky Way's luminosity. (e) A source of known intrinsic luminosity used to calibrate distances. Question 18 What is the origin of the cosmological redshift? (a) Photons losin ...
... (c) A standard measure of luminosity, in units of the solar luminosity. (d) A standard measure of luminosity, in units of the Milky Way's luminosity. (e) A source of known intrinsic luminosity used to calibrate distances. Question 18 What is the origin of the cosmological redshift? (a) Photons losin ...
Unit 1
... The first stars formed within this cloud, burning out quickly and violently. This added heavy elements to the cloud ...
... The first stars formed within this cloud, burning out quickly and violently. This added heavy elements to the cloud ...
THE MILKY WAY GALAXY
... disk, from our perspective more stars are visible looking through the disk then are seen looking away from the disk. The nature and size of the Galaxy, as well as our location within this stellar system were finally appreciated in the early 20th century when: The locations of the globular clusters ...
... disk, from our perspective more stars are visible looking through the disk then are seen looking away from the disk. The nature and size of the Galaxy, as well as our location within this stellar system were finally appreciated in the early 20th century when: The locations of the globular clusters ...
Stream: sciences. E THIRD TERM ENGLISH EXAMINATION PART
... is the satellite rotating around the earth and the closest body to it. The Sun is the richest source of electromagnetic energy ( mostly in the form of heat and light) in the solar system. The sun’s nearest known stellar neighbour is a red dwarf star called Proxima Centauri, at a distance of 4.3 ligh ...
... is the satellite rotating around the earth and the closest body to it. The Sun is the richest source of electromagnetic energy ( mostly in the form of heat and light) in the solar system. The sun’s nearest known stellar neighbour is a red dwarf star called Proxima Centauri, at a distance of 4.3 ligh ...
Solutions
... for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the disks of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Gal ...
... for the Milky Way and Andromeda galaxies, only using frisbees or dinner plates to represent the disks of these Galaxies. Comment on what this says about how often you might expect to see galaxy/galaxy collisions in the Universe compared to star/star collisions in our Galaxy. (For the size of our Gal ...
Planetary Configurations
... • On the whole, scientists do not believe we have been visited. • Reports of UFOs have risen dramatically with rise of aviation and space capability • BUT, galactic colonization seems “feasible”, so why no contact? (Not even indirect – no confirmed detections by SETI) ...
... • On the whole, scientists do not believe we have been visited. • Reports of UFOs have risen dramatically with rise of aviation and space capability • BUT, galactic colonization seems “feasible”, so why no contact? (Not even indirect – no confirmed detections by SETI) ...
Name
... ________________years while high mass stars usually only live up to ___________years. 26. When our sun reaches the “red giant” stage, what do you think will happen to the earth? 27. What is a “white dwarf”? 28. What happens to high mass stars after they reach the “red supergiant” stage? ...
... ________________years while high mass stars usually only live up to ___________years. 26. When our sun reaches the “red giant” stage, what do you think will happen to the earth? 27. What is a “white dwarf”? 28. What happens to high mass stars after they reach the “red supergiant” stage? ...
Terrestrial Planet (and Life) Finder
... Now estimate number of planets with life in our Galaxy (not number with intelligent, communicating life) If we leave out fi and fc (i.e. assume they are unity—all life forms develop our kind of intelligence and technology and try to communicate), we are calculating the number of life-bearing planet ...
... Now estimate number of planets with life in our Galaxy (not number with intelligent, communicating life) If we leave out fi and fc (i.e. assume they are unity—all life forms develop our kind of intelligence and technology and try to communicate), we are calculating the number of life-bearing planet ...
gravitational.waves
... velocities. The prime candidate sources are mergers of two neutron stars: two bodies, each with a mass comparable to the mass of our sun, spiraling around each other and merging at a velocity close to the speed of light. Such events are rare, and take place once per hundreds of thousands of years pe ...
... velocities. The prime candidate sources are mergers of two neutron stars: two bodies, each with a mass comparable to the mass of our sun, spiraling around each other and merging at a velocity close to the speed of light. Such events are rare, and take place once per hundreds of thousands of years pe ...
Physics 127 Descriptive Astronomy Homework #20 Key
... the known period- luminosity relation for Cepheids, he obtained and compared the absolute magnitudes of these Cepheids with his observed apparent magnitudes, yielding a distance for the Andromeda “Nebula” which put it far outside of our galaxy. ...
... the known period- luminosity relation for Cepheids, he obtained and compared the absolute magnitudes of these Cepheids with his observed apparent magnitudes, yielding a distance for the Andromeda “Nebula” which put it far outside of our galaxy. ...
ISP 205: Visions of the Universe
... This photo shows the Andromeda Galaxy as it looked about 2 1/2 million years ago. Question: When will we be able to see what it looks like now? ...
... This photo shows the Andromeda Galaxy as it looked about 2 1/2 million years ago. Question: When will we be able to see what it looks like now? ...
Astronomy Facts
... The sun is 1.4 million km across (110 times the earth), and over 150 million km away (500 light seconds) The largest stars (eg: Betelgeuse, Antares) are over 400 million km across (more than 300 times the diameter of the Sun) The brightest stars are over 10,000 times brighter than the sun. The dista ...
... The sun is 1.4 million km across (110 times the earth), and over 150 million km away (500 light seconds) The largest stars (eg: Betelgeuse, Antares) are over 400 million km across (more than 300 times the diameter of the Sun) The brightest stars are over 10,000 times brighter than the sun. The dista ...
The Components and Origin of the Universe
... Dark Matter and Dark Energy scientists were puzzled when some galaxies appeared to be moving away faster than they should be the deduced there must be upwards of 10x more mass in a galaxy than we can see they called this mass dark matter we now know it is the most abundant matter in the unive ...
... Dark Matter and Dark Energy scientists were puzzled when some galaxies appeared to be moving away faster than they should be the deduced there must be upwards of 10x more mass in a galaxy than we can see they called this mass dark matter we now know it is the most abundant matter in the unive ...
HW6 due - Yale Astronomy
... The sun will collide with another star of the same size (radius = 1 Rsun) if it comes within a distance of 2Rsun of that star. (Their edges will just touch if they come within a distance ...
... The sun will collide with another star of the same size (radius = 1 Rsun) if it comes within a distance of 2Rsun of that star. (Their edges will just touch if they come within a distance ...
Formation of the Solar System
... travelling at a speed of over one billion kilometres per hour, and that a light year equals nearly 10 trillion kilometres, it is no wonder many are baffled when told the circular disk of our galaxy is approximately 100,000 light years across. The sun is located about two thirds of the way out from t ...
... travelling at a speed of over one billion kilometres per hour, and that a light year equals nearly 10 trillion kilometres, it is no wonder many are baffled when told the circular disk of our galaxy is approximately 100,000 light years across. The sun is located about two thirds of the way out from t ...
Pretest
... than low beams do. Also, the closer an oncoming car is to you, the greater the apparent brightness of its headlights (on low or high). 21. Low-mass stars have longer lifetimes than do high-mass stars because low-mass stars use up their fuel much more slowly. 22. Because of high temperatures in the i ...
... than low beams do. Also, the closer an oncoming car is to you, the greater the apparent brightness of its headlights (on low or high). 21. Low-mass stars have longer lifetimes than do high-mass stars because low-mass stars use up their fuel much more slowly. 22. Because of high temperatures in the i ...
Fermi paradox
The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilizations, such as in the Drake equation, and the lack of evidence for such civilizations. The basic points of the argument, made by physicists Enrico Fermi and Michael H. Hart, are: The Sun is a typical star, and there are billions of stars in the galaxy that are billions of years older. With high probability, some of these stars will have Earth-like planets, and if the earth is typical, some might develop intelligent life. Some of these civilizations might develop interstellar travel, a step the Earth is investigating now. Even at the slow pace of currently envisioned interstellar travel, the Milky Way galaxy could be completely traversed in about a million years.According to this line of thinking, the Earth should already have been visited by extraterrestrial aliens though Fermi saw no convincing evidence of this, nor any signs of alien intelligence anywhere in the observable universe, leading him to ask, ""Where is everybody?""