C:\Documents and Settings\Administrator\Desktop\Lecture 15.wpd
... is actually 300 times more luminous or brighter than Sirius. That is, Betelgeuse actually emits far more energy than Sirius. The reason is that Betelgeuse is just much further away from us than Sirius; thus, apparently less bright or dimmer. To get at these quantities we need three definitions. Lumi ...
... is actually 300 times more luminous or brighter than Sirius. That is, Betelgeuse actually emits far more energy than Sirius. The reason is that Betelgeuse is just much further away from us than Sirius; thus, apparently less bright or dimmer. To get at these quantities we need three definitions. Lumi ...
Physics@Brock - Brock University
... Big Bang created hydrogen and some helium, along with a slew of other subatomic particles and electromagnetic radiation, but all the heavier elements were created inside stars. When the early massive stars “died” (their lifetimes were very short due to their enormous mass) the resulting explosions ( ...
... Big Bang created hydrogen and some helium, along with a slew of other subatomic particles and electromagnetic radiation, but all the heavier elements were created inside stars. When the early massive stars “died” (their lifetimes were very short due to their enormous mass) the resulting explosions ( ...
Fundamental Motions (PowerPoint)
... unchanging location, due North Some southern stars are never seen by us, while some Northern stars never go below the northern horizon (including those in the Big Dipper, for us in Kingston) Southern stars rise in the Southeast, and follow short paths across the sky. Northern stars rise in the North ...
... unchanging location, due North Some southern stars are never seen by us, while some Northern stars never go below the northern horizon (including those in the Big Dipper, for us in Kingston) Southern stars rise in the Southeast, and follow short paths across the sky. Northern stars rise in the North ...
Absolute magnitude
... The Sun is the brightest star in the sky, with an apparent magnitude of about -26.5 Sirius is next in line, with an apparent magnitude of -1.5; how many times brighter is the Sun than Sirius? a) 25 ...
... The Sun is the brightest star in the sky, with an apparent magnitude of about -26.5 Sirius is next in line, with an apparent magnitude of -1.5; how many times brighter is the Sun than Sirius? a) 25 ...
LAB #6 - GEOCITIES.ws
... like the Celsius scale, but offset by 273. Thus something that is 273 Kelvins is 0 degrees Celsius.] PRE-LAB WARMUP QUESTION: A star gives out more blue light than yellow. Thus its B-V is (positive, negative, zero). The most likely spectral type for this star is (B, K, M). When one constructs an HR ...
... like the Celsius scale, but offset by 273. Thus something that is 273 Kelvins is 0 degrees Celsius.] PRE-LAB WARMUP QUESTION: A star gives out more blue light than yellow. Thus its B-V is (positive, negative, zero). The most likely spectral type for this star is (B, K, M). When one constructs an HR ...
Night Sky Checklist July–August–September Unaided Eye Astronomy
... just outside the Summer Triangle between Cygnus and Aquila. Stars (The stars on the checklist are easily visible to the unaided eye except in the most light polluted parts of cities.) Antares is a red supergiant star estimated to be some 800 times bigger than the sun. It’s bigger than the orbits of ...
... just outside the Summer Triangle between Cygnus and Aquila. Stars (The stars on the checklist are easily visible to the unaided eye except in the most light polluted parts of cities.) Antares is a red supergiant star estimated to be some 800 times bigger than the sun. It’s bigger than the orbits of ...
How it works:
... On the reverse of this sheet are four constellations, all of which can be seen on summer nights in Colorado. Each constellation has five stars. For every book read, fill in one star. Each time you complete a constellation, bring this sheet to the teenseen to receive a prize and a raffle ticket for a ...
... On the reverse of this sheet are four constellations, all of which can be seen on summer nights in Colorado. Each constellation has five stars. For every book read, fill in one star. Each time you complete a constellation, bring this sheet to the teenseen to receive a prize and a raffle ticket for a ...
bYTEBoss lesson 3 life of star
... The end of the life cycle of really massive stars is different to that of massive stars. After a really massive red giant collapses in a supernova explosion, it leaves a star so dense that not even light can escape its gravitational pull. This is called a black hole! Some scientists believe that the ...
... The end of the life cycle of really massive stars is different to that of massive stars. After a really massive red giant collapses in a supernova explosion, it leaves a star so dense that not even light can escape its gravitational pull. This is called a black hole! Some scientists believe that the ...
STARS Chapter 8 Section 1
... The inner layers are very dense and hot. But the outer layers are made up of cool gases. Elements in a star’s atmosphere absorb some of the light that radiates from the star. Because different elements absorb different wavelengths of light, astronomers can tell what elements a star is made of from t ...
... The inner layers are very dense and hot. But the outer layers are made up of cool gases. Elements in a star’s atmosphere absorb some of the light that radiates from the star. Because different elements absorb different wavelengths of light, astronomers can tell what elements a star is made of from t ...
What are constellations? - Red Hook Central Schools
... Constellations: Observed pattern people use to mark the position of stars in the sky ...
... Constellations: Observed pattern people use to mark the position of stars in the sky ...
An Introduction to Astronomy and Cosmology
... Eve or the 30th June. Since the time definition was changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning ...
... Eve or the 30th June. Since the time definition was changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning ...
Lecture 14 - Center for Astrophysics and Space Astronomy CASA
... White Dwarf Collapse As WD starts to collapse, the material falls through the gravitational field of the star. It heats very rapidly. In just a few seconds it reaches >100,000,000K. Carbon and Oxygen ignite and burn by fusion to even heavier elements. The whole star explodes in a frenzy of nuclear ...
... White Dwarf Collapse As WD starts to collapse, the material falls through the gravitational field of the star. It heats very rapidly. In just a few seconds it reaches >100,000,000K. Carbon and Oxygen ignite and burn by fusion to even heavier elements. The whole star explodes in a frenzy of nuclear ...
Conceptual Physics
... The dust that fills the halo of the Milky Way Galaxy. The name of an oracle who can channel messages from beings that live near the star called Vega. The middle section of the Milky Way Galaxy. The gas and dust that lies in between the stars in the Milky Way Galaxy. ...
... The dust that fills the halo of the Milky Way Galaxy. The name of an oracle who can channel messages from beings that live near the star called Vega. The middle section of the Milky Way Galaxy. The gas and dust that lies in between the stars in the Milky Way Galaxy. ...
Chapter 10: Measuring the Stars - Otto
... brightness • A 1st magnitude star is 2.5X brighter than a 2nd magnitude star • Full moon has an apparent magnitude of -12.5 • Faintest objects visible by Hubble or Keck telescopes are apparent magnitude 30 ...
... brightness • A 1st magnitude star is 2.5X brighter than a 2nd magnitude star • Full moon has an apparent magnitude of -12.5 • Faintest objects visible by Hubble or Keck telescopes are apparent magnitude 30 ...
and Concept Self-test (1,2,3,5,6,7,8,9)
... 5. What makes an ordinary star become a red giant is when the mass of helium outweighs the mass of hydrogen “burning” in the inner core, causing the helium to collapse inward, which forces the hydrogen to the outer core, where it continues fusion. Since the H is now in the outer core, the diameter ...
... 5. What makes an ordinary star become a red giant is when the mass of helium outweighs the mass of hydrogen “burning” in the inner core, causing the helium to collapse inward, which forces the hydrogen to the outer core, where it continues fusion. Since the H is now in the outer core, the diameter ...
At the Heart of the Matter: The Blue White Dwarf in M 57. Paul Temple
... spectrum is dominated by the signature of HeII, although H and higher elements may be observed in smaller amounts. DB This class may be regarded as an extension of the DO group into lower temperature regions (below around 30,000K). The cooler temperatures are insufficient to ionise helium, and so th ...
... spectrum is dominated by the signature of HeII, although H and higher elements may be observed in smaller amounts. DB This class may be regarded as an extension of the DO group into lower temperature regions (below around 30,000K). The cooler temperatures are insufficient to ionise helium, and so th ...
File - greenscapes4you
... M-Sun star has 30 times more H than the Sun, but burns it with a luminosity that is 30,000 times greater. It’s lifetime is 30/30,000 = 1/10,000 as long as the Sun – corresponding to a lifetime of only a few million years. This is a very short time, cosmically speaking. This is one reason why massive ...
... M-Sun star has 30 times more H than the Sun, but burns it with a luminosity that is 30,000 times greater. It’s lifetime is 30/30,000 = 1/10,000 as long as the Sun – corresponding to a lifetime of only a few million years. This is a very short time, cosmically speaking. This is one reason why massive ...
Astronomy Quiz 12 “Stars
... _____3. Which of the following is the brightest star in the nighttime sky? A. Polaris B. Sirius C. Procyon ...
... _____3. Which of the following is the brightest star in the nighttime sky? A. Polaris B. Sirius C. Procyon ...
Properties of Stars in general
... • Now, if we can find a binary system with a star of mass m in orbit around another star of unknown mass, we can deduce its mass too. • In this way, through observations of stellar binary systems we have been able to find the masses of stars of different types. • It turns out that the absolute brig ...
... • Now, if we can find a binary system with a star of mass m in orbit around another star of unknown mass, we can deduce its mass too. • In this way, through observations of stellar binary systems we have been able to find the masses of stars of different types. • It turns out that the absolute brig ...