The Milky Way Galaxy
... velocities of those globular clusters were ~250 km/s, much higher than the mass of the smaller Kapteyn galaxy model would require. So the galaxy must contain more stars (and mass) than Kapteyn originally thought in order to keep the star clusters from flying off. ...
... velocities of those globular clusters were ~250 km/s, much higher than the mass of the smaller Kapteyn galaxy model would require. So the galaxy must contain more stars (and mass) than Kapteyn originally thought in order to keep the star clusters from flying off. ...
Gravity`s Influence on the Development of the Solar System
... While the inner region went through variations in temperature during the sun’s evolution and remained hot, the temperatures in the outer region remained low, less than 50 K. Ice particles and ice-coated dust grains, which were unable to remain solid in the inner region due to high temperatures, surv ...
... While the inner region went through variations in temperature during the sun’s evolution and remained hot, the temperatures in the outer region remained low, less than 50 K. Ice particles and ice-coated dust grains, which were unable to remain solid in the inner region due to high temperatures, surv ...
Celestial Motions
... The brightest stars in a constellation… • all belong to the same star cluster. • all lie at about the same distance from Earth. • may actually be quite far away from each other. ...
... The brightest stars in a constellation… • all belong to the same star cluster. • all lie at about the same distance from Earth. • may actually be quite far away from each other. ...
Goal: To understand how we know distances to
... • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for main sequences stars, but this separa ...
... • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for main sequences stars, but this separa ...
Chapter 1 Seeing the Light: The Art and Science of Astronomy
... Major). I give the abbreviation for each of the constellations in Table 1-2. Astronomers didn’t coin special names such as Sirius for every star in Canis Major, so they named them with Greek letters or other symbols. In fact, some constellations don’t have a single named star. (Don’t fall for those ...
... Major). I give the abbreviation for each of the constellations in Table 1-2. Astronomers didn’t coin special names such as Sirius for every star in Canis Major, so they named them with Greek letters or other symbols. In fact, some constellations don’t have a single named star. (Don’t fall for those ...
Groups of Stars
... stars because these stars have already died out. Astronomers estimate that the oldest globular clusters are about 12 billion years old. Thus, the universe must be at least that old. ...
... stars because these stars have already died out. Astronomers estimate that the oldest globular clusters are about 12 billion years old. Thus, the universe must be at least that old. ...
Goal: To understand how we know distances to various
... • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for main sequences stars, but this separa ...
... • If you compare the apparent and absolute magnitudes of an object you get its distance. • How to do that? • 1) spectra – tells you what the mass of the star is by its temperature and its spectral type (although does not work so well for giants – works great for main sequences stars, but this separa ...
Geology 110: Earth and Space Science
... science: finding out information about the origin of the universe, exploring other planets, studying how space phenomena affect Earth, and investigating the potential for life elsewhere in the universe. Often, space program research yields new discoveries with applications elsewhere. Each year the f ...
... science: finding out information about the origin of the universe, exploring other planets, studying how space phenomena affect Earth, and investigating the potential for life elsewhere in the universe. Often, space program research yields new discoveries with applications elsewhere. Each year the f ...
S1-4-05 - Seasonal Constelallations - Lesson
... - The Earth rotates from west to east, but the constellations appear to move from east to west, or “backwards” in direction from the real rotation of Earth. - Constellations appear to “rise” when the Earth has rotated so that we can see the different constellations, and appear to “set” when the Eart ...
... - The Earth rotates from west to east, but the constellations appear to move from east to west, or “backwards” in direction from the real rotation of Earth. - Constellations appear to “rise” when the Earth has rotated so that we can see the different constellations, and appear to “set” when the Eart ...
The Milky Way galaxy
... lower abundance of elements heavier than helium) – it is a “high velocity star” that is just passing through the plane on an elliptical orbit toward the halo or toward the center of the Galaxy ...
... lower abundance of elements heavier than helium) – it is a “high velocity star” that is just passing through the plane on an elliptical orbit toward the halo or toward the center of the Galaxy ...
Lecture 17: General Relativity and Black Holes
... 33. The approximate number of stars in our galaxy? _______ 24. The approximate diameter of our own galaxy? _______ 25. The galactic north pole is in what constellation? _______ 1. The Sun is located at the center of the Milky Way Galaxy. True or false 2. Shapley overestimated the dimensions of the M ...
... 33. The approximate number of stars in our galaxy? _______ 24. The approximate diameter of our own galaxy? _______ 25. The galactic north pole is in what constellation? _______ 1. The Sun is located at the center of the Milky Way Galaxy. True or false 2. Shapley overestimated the dimensions of the M ...
Frostburg State Planetarium presents
... West. To learn, say Never Eat Slimy Worms! • North is direction your shadow points in mid day. • East is about where sun rises each morning. • South is where sun is highest in sky (in mid day) • West is about where sun sets in late afternoon. ...
... West. To learn, say Never Eat Slimy Worms! • North is direction your shadow points in mid day. • East is about where sun rises each morning. • South is where sun is highest in sky (in mid day) • West is about where sun sets in late afternoon. ...
Lecture 7 February 9
... x-ray photon at 100A than the infrared light photons emitted by every living human? (Assuming 10,000nm wavelength of infrared light). • A. Ten times as powerful. • B. A hundred times more powerful. • C. A thousand times more powerful. • D. 1x1012 (a trillion) times more powerful. • E. 1x1015 (a quad ...
... x-ray photon at 100A than the infrared light photons emitted by every living human? (Assuming 10,000nm wavelength of infrared light). • A. Ten times as powerful. • B. A hundred times more powerful. • C. A thousand times more powerful. • D. 1x1012 (a trillion) times more powerful. • E. 1x1015 (a quad ...
Name
... diagram represents a time-exposure photograph taken by aiming a camera at Polaris in the night sky and leaving the shutter open for a period of time to record star trails. The angular arcs (star trails) show the apparent motions of some stars. ...
... diagram represents a time-exposure photograph taken by aiming a camera at Polaris in the night sky and leaving the shutter open for a period of time to record star trails. The angular arcs (star trails) show the apparent motions of some stars. ...
7_Big_bang
... use up its hydrogen. Note, Sun has been shinning for 4.6 B. years so it has about 5 B. more years to go before becoming a red giant. More massive stars, last much less then 10 B. years. Less massive stars last longer. ...
... use up its hydrogen. Note, Sun has been shinning for 4.6 B. years so it has about 5 B. more years to go before becoming a red giant. More massive stars, last much less then 10 B. years. Less massive stars last longer. ...
Rosette Nebula - Westchester Amateur Astronomers
... on the 23rd. Jupiter has crossed over to the evening sky. That leaves Mars and Saturn to keep our attention before dawn this month. We get closest to Jupiter for the year on the 8th, so for the whole month waiting until Jupiter gets high above the horizon is well worth the wait with any size telesco ...
... on the 23rd. Jupiter has crossed over to the evening sky. That leaves Mars and Saturn to keep our attention before dawn this month. We get closest to Jupiter for the year on the 8th, so for the whole month waiting until Jupiter gets high above the horizon is well worth the wait with any size telesco ...
Pitt County Schools
... and its usefulness to astronomers. 1.04 Analyze spectra in terms of their formation and types (continuous spectra, absorption spectra, and emission spectra). Describe what type of object produces each type of spectrum. Describe the structure of an atom remembering to include its quantized energy l ...
... and its usefulness to astronomers. 1.04 Analyze spectra in terms of their formation and types (continuous spectra, absorption spectra, and emission spectra). Describe what type of object produces each type of spectrum. Describe the structure of an atom remembering to include its quantized energy l ...
Here
... • B=1 “astronomical unit” (e.g. the Earth-Sun distance). Define a unit of distance such that d=1/p, if the angle p is measured in arcseconds. • This unit is the parsec, which is 3.26 light years. ...
... • B=1 “astronomical unit” (e.g. the Earth-Sun distance). Define a unit of distance such that d=1/p, if the angle p is measured in arcseconds. • This unit is the parsec, which is 3.26 light years. ...
Notes
... layer, shrouded in dust from superwind (proto-planetary nebula) Mass loss rate decreases but wind speed increases Hydrogen layer thins further from mass loss and He burning shell Star evolves at constant luminosity (~104LSun), shrinking and heating up, until nuclear burning ceases Masses between 0.5 ...
... layer, shrouded in dust from superwind (proto-planetary nebula) Mass loss rate decreases but wind speed increases Hydrogen layer thins further from mass loss and He burning shell Star evolves at constant luminosity (~104LSun), shrinking and heating up, until nuclear burning ceases Masses between 0.5 ...
Eruptive Variables - Scientific Research Publishing
... The most famous of the eruptive variables is the novae. The term nova means new. Actually, a nova is an existing star that suddenly emits an outburst brought a star luminosity up to naked eye visibility. It seemed like a new star. The Chinese astronomers called them guest stars. Novae, before and af ...
... The most famous of the eruptive variables is the novae. The term nova means new. Actually, a nova is an existing star that suddenly emits an outburst brought a star luminosity up to naked eye visibility. It seemed like a new star. The Chinese astronomers called them guest stars. Novae, before and af ...
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.