dtu7ech11 - Fort Thomas Independent Schools
... Our eyes change angle as we look at things that are different distances away. ...
... Our eyes change angle as we look at things that are different distances away. ...
giant molecular clouds
... Giant Molecular Clouds => Stars do not form isolated, but in large groups, called Open Clusters of Stars. ...
... Giant Molecular Clouds => Stars do not form isolated, but in large groups, called Open Clusters of Stars. ...
Powerpoint Presentation (large file)
... Stellar evolution has produced two distinct populations of stars ...
... Stellar evolution has produced two distinct populations of stars ...
Astronomy Jeopardy Astronomy jeopardy
... When there is equilibrium between the stellar fusion pushing out and the gravity pulling in the star is called… (Hint: our sun is this type of star) ...
... When there is equilibrium between the stellar fusion pushing out and the gravity pulling in the star is called… (Hint: our sun is this type of star) ...
charts_set_9
... - contains young and old stars, gas, dust. Has spiral structure - vertical thickness roughly 100 pc - 2 kpc (depending on component. Most gas and dust in thinner layer, most stars in thicker layer) ...
... - contains young and old stars, gas, dust. Has spiral structure - vertical thickness roughly 100 pc - 2 kpc (depending on component. Most gas and dust in thinner layer, most stars in thicker layer) ...
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 ...
Star - AUSD Blogs
... star at an immense distance. It must have been the Pluto of this vanished solar system, orbiting on the frontiers of night. Too far from the central sun ever to have known life, its remoteness had saved it from the fate of all its lost companions. The passing fires had seared its rocks and burned aw ...
... star at an immense distance. It must have been the Pluto of this vanished solar system, orbiting on the frontiers of night. Too far from the central sun ever to have known life, its remoteness had saved it from the fate of all its lost companions. The passing fires had seared its rocks and burned aw ...
Problem set 2
... As experiments show, on Oct. 1 the sun subtends an angular diameter of 32 arcmin. (a) Calculate the solid angle Ω⊙ subtended by the sun, in steradians. (b) Show that the flux (in W m−2 s−1 or its cgs equivalent) of solar radiation on earth is F = I(T⊙ ) · Ω⊙ with T⊙ = 5777 K, and calculate this valu ...
... As experiments show, on Oct. 1 the sun subtends an angular diameter of 32 arcmin. (a) Calculate the solid angle Ω⊙ subtended by the sun, in steradians. (b) Show that the flux (in W m−2 s−1 or its cgs equivalent) of solar radiation on earth is F = I(T⊙ ) · Ω⊙ with T⊙ = 5777 K, and calculate this valu ...
JEOPARDY: Astronomy - Mr. Morrow`s Class
... 200 Q: Why do stars appear to move across the night sky? A: Stars do not move, but because Earth is rotating it looks like they move across the night sky from east to west. 300 Q: What is a constellation? A: a group of stars that form a pattern and are often named after animals, objects, or people. ...
... 200 Q: Why do stars appear to move across the night sky? A: Stars do not move, but because Earth is rotating it looks like they move across the night sky from east to west. 300 Q: What is a constellation? A: a group of stars that form a pattern and are often named after animals, objects, or people. ...
HR Diagram and Life of a star
... from 100-1000 times the size of the sun GIANTS- large bright stars a bit smaller and fainter than Super giants Super giants in the Red temp range tend to be in their last stages of life. They are out of hydrogen and are now fusing Helium into Carbon. White Dwarfs- are the small, dense remains of low ...
... from 100-1000 times the size of the sun GIANTS- large bright stars a bit smaller and fainter than Super giants Super giants in the Red temp range tend to be in their last stages of life. They are out of hydrogen and are now fusing Helium into Carbon. White Dwarfs- are the small, dense remains of low ...
Lec 25.2- STELLAR EVOLUTION SUMMARY
... be gravitationally bound. At this point, the cloud collapses under the influence of its own gravity. At first, it contracts rapidly because energy thereby released is easily radiated outward. Eventually, the cloud grows dense enough to become opaque to (block) its own radiation. This causes the clou ...
... be gravitationally bound. At this point, the cloud collapses under the influence of its own gravity. At first, it contracts rapidly because energy thereby released is easily radiated outward. Eventually, the cloud grows dense enough to become opaque to (block) its own radiation. This causes the clou ...
HW7-3
... without fusion. The upper end of brown dwarfs is well defined: 8% M☉ = 80 Jupiters. There is a not-so-welldefined line between small brown dwarfs and large planets. (260) RQ 6: Why do expanding stars become cooler and more luminous? As they expand they have more surface area to shine from, so they a ...
... without fusion. The upper end of brown dwarfs is well defined: 8% M☉ = 80 Jupiters. There is a not-so-welldefined line between small brown dwarfs and large planets. (260) RQ 6: Why do expanding stars become cooler and more luminous? As they expand they have more surface area to shine from, so they a ...
Unit 6--Astronomy
... b. blue d. orange 3.Gamma rays, X-rays, visible light, and radio waves are all types of ____. a. nuclear energy c. ultraviolet radiation b. chromatic aberration d. electromagnetic radiation 4.Which of the following refers to the change in wavelength that occurs when an object moves toward or away fr ...
... b. blue d. orange 3.Gamma rays, X-rays, visible light, and radio waves are all types of ____. a. nuclear energy c. ultraviolet radiation b. chromatic aberration d. electromagnetic radiation 4.Which of the following refers to the change in wavelength that occurs when an object moves toward or away fr ...
Mise en page 1
... Since the axis of the Earth’s rotation goes through the poles, a patient observer at the North Pole will see the stars orbiting anti-clockwise around a point directly above his head, where the Pole Star appears immobile. The orbits of the stars increase with their distance from the Pole Star. This p ...
... Since the axis of the Earth’s rotation goes through the poles, a patient observer at the North Pole will see the stars orbiting anti-clockwise around a point directly above his head, where the Pole Star appears immobile. The orbits of the stars increase with their distance from the Pole Star. This p ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.