Time From the Perspective of a Particle Physicist
... • Stars range from .0001xLS to 1,000,000xLS Another scale: “magnitude” often used. A log scale to the power of ~2.5. YOU DON’T NEED TO KNOW. The lower the Mag the brighter the object PHYS 162 ...
... • Stars range from .0001xLS to 1,000,000xLS Another scale: “magnitude” often used. A log scale to the power of ~2.5. YOU DON’T NEED TO KNOW. The lower the Mag the brighter the object PHYS 162 ...
January 2015 - Newbury Astronomical Society
... from large powerful young stars just out of view to the top of the image. Stars form in nebulae as gravity pulls atoms together to create denser regions. These denser regions have more gravity and pull more atoms in to join the denser region which grows larger and gains even more gravity. Gravity co ...
... from large powerful young stars just out of view to the top of the image. Stars form in nebulae as gravity pulls atoms together to create denser regions. These denser regions have more gravity and pull more atoms in to join the denser region which grows larger and gains even more gravity. Gravity co ...
Document
... • “We need revenge on Mt.Olympus” Hades said, his gray, dark eyes signing no emotion. • The gods discussed their plan before putting it into action. • The next day, Hades led Hephaestus through the depths of the morose wasteland of the underworld. They stopped only when they reached a place directly ...
... • “We need revenge on Mt.Olympus” Hades said, his gray, dark eyes signing no emotion. • The gods discussed their plan before putting it into action. • The next day, Hades led Hephaestus through the depths of the morose wasteland of the underworld. They stopped only when they reached a place directly ...
Constellations - Sierra Star Gazers
... in the sky. In fact it is somewhat nearer to us, at a distance of 5,000 light years. M20 is considerably smaller than the Lagoon. Look for an object about 20’ in extent. In my 4” scope at 23x, I can view both M8 and M20 in the same field of view. Commonly known as the Trifid Nebula, close inspection ...
... in the sky. In fact it is somewhat nearer to us, at a distance of 5,000 light years. M20 is considerably smaller than the Lagoon. Look for an object about 20’ in extent. In my 4” scope at 23x, I can view both M8 and M20 in the same field of view. Commonly known as the Trifid Nebula, close inspection ...
Circumpolar constellations
... Is there a direction you could look any clear night, no matter what time of year, and always see the same stars? Yes! Circumpolar constellations do not rise or set, but appear to move in a series of circles around Polaris, the pole star. In the northern hemisphere, between 30 and 40 degrees North la ...
... Is there a direction you could look any clear night, no matter what time of year, and always see the same stars? Yes! Circumpolar constellations do not rise or set, but appear to move in a series of circles around Polaris, the pole star. In the northern hemisphere, between 30 and 40 degrees North la ...
Astronomy Exam #4
... 26. An O star is known to be eight times the temperature of the Sun and fivr times its radius. What is its luminosity? You may answer either in Watts or in units of solar luminosity. Note: the radius of the Sun is 696,000 km and the temperature of the Sun is 5,800 K. ...
... 26. An O star is known to be eight times the temperature of the Sun and fivr times its radius. What is its luminosity? You may answer either in Watts or in units of solar luminosity. Note: the radius of the Sun is 696,000 km and the temperature of the Sun is 5,800 K. ...
AST 207 7 Homew
... mA–mB= –2.5 log(ffA/ fB), where mA will be Deeneb, and mB will be the sun, solving foor the ratio of o their fluxes, we get ...
... mA–mB= –2.5 log(ffA/ fB), where mA will be Deeneb, and mB will be the sun, solving foor the ratio of o their fluxes, we get ...
The most important questions to study for the exam
... • Dust and gas between the star and the Earth has absorbed or scattered much of the blue light of the star. 17. A particular star has an apparent magnitude in a red filter of 5.60 and an apparent magnitude in a blue filter of 5.95. This information tells us that the star is • a cool star. • an intri ...
... • Dust and gas between the star and the Earth has absorbed or scattered much of the blue light of the star. 17. A particular star has an apparent magnitude in a red filter of 5.60 and an apparent magnitude in a blue filter of 5.95. This information tells us that the star is • a cool star. • an intri ...
Binary Star Systems - d_smith.lhseducators.com
... http://www.synapses.co.uk/astro/procyon.gif http://www.glyphweb.com/esky/_images/illustrations/procyon.gif ...
... http://www.synapses.co.uk/astro/procyon.gif http://www.glyphweb.com/esky/_images/illustrations/procyon.gif ...
DSLR photometry - British Astronomical Association
... P Cygni is a hypergiant luminous blue variable and is intrinsically one of the most luminous stars in the Milky Way galaxy (610,000 as luminous as the Sun) The star is located about 5000 to 6000 light years from the Earth. Today it has an estimated magnitude of 4.8 ± 0.5 Part of an ongoing campaign ...
... P Cygni is a hypergiant luminous blue variable and is intrinsically one of the most luminous stars in the Milky Way galaxy (610,000 as luminous as the Sun) The star is located about 5000 to 6000 light years from the Earth. Today it has an estimated magnitude of 4.8 ± 0.5 Part of an ongoing campaign ...
Midterm Study Game
... What was Copernicus’ contribution to Astronomy? Copernicus was the scientist who first believed that the Sun was the center of the solar system, not the Earth AND that all the objects in our solar system revolve around the sun. Galileo also helped confirm this with his trusty telescope! ...
... What was Copernicus’ contribution to Astronomy? Copernicus was the scientist who first believed that the Sun was the center of the solar system, not the Earth AND that all the objects in our solar system revolve around the sun. Galileo also helped confirm this with his trusty telescope! ...
Properties of Stars
... produces a series of shock waves, and a nebula of gas and dust a core is left behind ...
... produces a series of shock waves, and a nebula of gas and dust a core is left behind ...
Distance, Size, and Temperature of a Star
... Because blue stars are large, and compact, they burn their fuel quickly, which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a lighthouse, they shine across a great distance. Even though blue giant stars are ra ...
... Because blue stars are large, and compact, they burn their fuel quickly, which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a lighthouse, they shine across a great distance. Even though blue giant stars are ra ...
Part A
... Different parts of the electromagnetic spectrum have different wavelengths and different energies. You can see only a small part of the energy in these wavelengths. ...
... Different parts of the electromagnetic spectrum have different wavelengths and different energies. You can see only a small part of the energy in these wavelengths. ...
E3 – Stellar distances
... • At distances greater than Mpc, neither parallax nor spectroscopic parallax can be relied upon to measure the distance to a star. • When we observe another galaxy, all of the stars in that galaxy are approximately the same distance away from the earth. What we really need is a light source of known ...
... • At distances greater than Mpc, neither parallax nor spectroscopic parallax can be relied upon to measure the distance to a star. • When we observe another galaxy, all of the stars in that galaxy are approximately the same distance away from the earth. What we really need is a light source of known ...
Distance
... Inverse Square Law of Brightness The Apparent Brightness of a source is inversely proportional to the square of its ...
... Inverse Square Law of Brightness The Apparent Brightness of a source is inversely proportional to the square of its ...
Introduction to Accretion Phenomena in Astrophysics
... each other, stars essentially evolve separately. • Semidetached binary stars: one of the components fills its Roche lobe and the other does not. Gas from the surface of the Roche lobe filling component (donor) is transferred to the other, accreting star. The mass transfer dominates the evolution of ...
... each other, stars essentially evolve separately. • Semidetached binary stars: one of the components fills its Roche lobe and the other does not. Gas from the surface of the Roche lobe filling component (donor) is transferred to the other, accreting star. The mass transfer dominates the evolution of ...
chapter 7
... Astronomers have now detected hundreds of planetary bodies, called exoplanets, moving in orbit around other stars. Most of these are more massive than any of the Sun's planets. These planetary-like bodies are detected because of their strong gravitationally interactions with their stars. However, te ...
... Astronomers have now detected hundreds of planetary bodies, called exoplanets, moving in orbit around other stars. Most of these are more massive than any of the Sun's planets. These planetary-like bodies are detected because of their strong gravitationally interactions with their stars. However, te ...
AST 112 – Activity #4 The Stellar Magnitude System
... To calculate using base-ten logarithms To set the scale for apparent magnitudes To define absolute magnitude in terms of apparent magnitude and distance To determine the distance to a star given its apparent and absolute magnitudes ...
... To calculate using base-ten logarithms To set the scale for apparent magnitudes To define absolute magnitude in terms of apparent magnitude and distance To determine the distance to a star given its apparent and absolute magnitudes ...
Astronomy Study Guide
... b. The star’s distance from Earth 38. The Hertzsprung-Russell diagram shows the relationship between surface temperature and brightness 39. Look at the Hertzsprung-Russell diagram in Figure 11 on page 289. Write what is measured on each of the two axes of the diagram. a. x-axis (horizontal axis): Su ...
... b. The star’s distance from Earth 38. The Hertzsprung-Russell diagram shows the relationship between surface temperature and brightness 39. Look at the Hertzsprung-Russell diagram in Figure 11 on page 289. Write what is measured on each of the two axes of the diagram. a. x-axis (horizontal axis): Su ...
Types of Galaxies - Spring Branch ISD
... b. The star’s distance from Earth 38. The Hertzsprung-Russell diagram shows the relationship between surface temperature and brightness 39. Look at the Hertzsprung-Russell diagram in Figure 11 on page 289. Write what is measured on each of the two axes of the diagram. a. x-axis (horizontal axis): Su ...
... b. The star’s distance from Earth 38. The Hertzsprung-Russell diagram shows the relationship between surface temperature and brightness 39. Look at the Hertzsprung-Russell diagram in Figure 11 on page 289. Write what is measured on each of the two axes of the diagram. a. x-axis (horizontal axis): Su ...
Solution
... the red one must be smaller. But by Stefan-Boltzmann's Law, its luminosity/area must also be smaller, and they are the same size. So the red one is less luminous. 3. ( T F ) Using parallax, astronomers can now reliably measure the distance of most of the stars in our galaxy. False. Sad to say, most ...
... the red one must be smaller. But by Stefan-Boltzmann's Law, its luminosity/area must also be smaller, and they are the same size. So the red one is less luminous. 3. ( T F ) Using parallax, astronomers can now reliably measure the distance of most of the stars in our galaxy. False. Sad to say, most ...
Types of Stars http://space.about.com/od/stars/tp/What-Are
... star is a system of two stars that are gravitationally bound to each other. They orbit around a common point, called the center of mass. It is estimated that about half of all the stars in our galaxy are part of a binary system. Visual binaries can be seen as two separate stars through a telescope. ...
... star is a system of two stars that are gravitationally bound to each other. They orbit around a common point, called the center of mass. It is estimated that about half of all the stars in our galaxy are part of a binary system. Visual binaries can be seen as two separate stars through a telescope. ...
Life Cycle of Stars
... The Sun is made of Hydrogen and Helium, the two lightest elements in the Universe ...
... The Sun is made of Hydrogen and Helium, the two lightest elements in the Universe ...