Kinds of Stars
... SUPERNOVA – 1054 Chinese observed one. It’s remaining dust cloud “Crab Nebula” found in Taurus the Bull. Best known modern SuperNova appeared in 1987. (Page 387 text) Figure 21.10 NEUTRON STAR – Mass that remains after an exploded SuperNova. ...
... SUPERNOVA – 1054 Chinese observed one. It’s remaining dust cloud “Crab Nebula” found in Taurus the Bull. Best known modern SuperNova appeared in 1987. (Page 387 text) Figure 21.10 NEUTRON STAR – Mass that remains after an exploded SuperNova. ...
Slide 1
... That is why objects on the sky have historically been divided into four categories: the Sun, the Moon, the planets, all of which move in relation to other objects, and the fixed stars, which stay still in relation to each other. ...
... That is why objects on the sky have historically been divided into four categories: the Sun, the Moon, the planets, all of which move in relation to other objects, and the fixed stars, which stay still in relation to each other. ...
AST101_lect_12
... to refill the gas tank in your car. Time remaining is the amount of fuel you have (the size of the tank) by your average usage (gallons per day). ...
... to refill the gas tank in your car. Time remaining is the amount of fuel you have (the size of the tank) by your average usage (gallons per day). ...
ppt
... How can we test theories of star evolution? • Binaries help, because one can get mass so that theories can be tested • But stars change so slowly, it is impossible to test theories by watching just one star move through phases • Fortunately, there are 1011 stars in our Galaxy, all with a range of ma ...
... How can we test theories of star evolution? • Binaries help, because one can get mass so that theories can be tested • But stars change so slowly, it is impossible to test theories by watching just one star move through phases • Fortunately, there are 1011 stars in our Galaxy, all with a range of ma ...
Page R63 - ClassZone
... The Hertzsprung-Russell Diagram The Hertzsprung-Russell (H-R) Diagram is a graph that shows stars plotted according to brightness and surface temperature. Most stars fall within a diagonal band called the main sequence. In the mainsequence stage of a star’s life cycle, brightness is closely related ...
... The Hertzsprung-Russell Diagram The Hertzsprung-Russell (H-R) Diagram is a graph that shows stars plotted according to brightness and surface temperature. Most stars fall within a diagonal band called the main sequence. In the mainsequence stage of a star’s life cycle, brightness is closely related ...
Chapter16
... rate. Suppose the two stars travel the same distance through space relative to the Sun. The nearer star will move through a greater angle than the more distant star. 4. The photon absorbed when an atom moves from energy level A to energy level B has the same energy and wavelength as the photon emitt ...
... rate. Suppose the two stars travel the same distance through space relative to the Sun. The nearer star will move through a greater angle than the more distant star. 4. The photon absorbed when an atom moves from energy level A to energy level B has the same energy and wavelength as the photon emitt ...
What have we learned?
... • How were neutron stars discovered? – Beams of radiation from a rotating neutron star sweep through space like lighthouse beams, making them appear to pulse. – Observations of these pulses were the first evidence for neutron stars. ...
... • How were neutron stars discovered? – Beams of radiation from a rotating neutron star sweep through space like lighthouse beams, making them appear to pulse. – Observations of these pulses were the first evidence for neutron stars. ...
Hertzsprung-Russell Diagram—key to understanding properties of stars. 26 Sept
... You are a young astronomer in 1890, and you want to study stars. The distances to a few dozen stars are known. How do you attack this problem? What characteristics of stars do you see in the pictures of the Orion constellation and a globular cluster (taken 100 years later)? ...
... You are a young astronomer in 1890, and you want to study stars. The distances to a few dozen stars are known. How do you attack this problem? What characteristics of stars do you see in the pictures of the Orion constellation and a globular cluster (taken 100 years later)? ...
The Hertzsprung-Russell Diagram
... The masses can be found from M1+M2 (suns) = a(AU)3 / P(yr)2 (individual masses can be gotten if you have a signal from both stars) The orbital period comes from watching the stars, or the periodic variation of their velocity or brightness. To get orbital semimajor axis, you need either the parallax ...
... The masses can be found from M1+M2 (suns) = a(AU)3 / P(yr)2 (individual masses can be gotten if you have a signal from both stars) The orbital period comes from watching the stars, or the periodic variation of their velocity or brightness. To get orbital semimajor axis, you need either the parallax ...
Name____________________________________________________________________ Astronomy Packet 2 1) The Mayans tracked which celestial bodies____________________________________
... _____________________________________________________. The individuals who performed this were known as _________________. The study of these events allowed Mayans to track time in __ different ways. The _____________ is the measurement which has raised concern recently as it predicts the___________ ...
... _____________________________________________________. The individuals who performed this were known as _________________. The study of these events allowed Mayans to track time in __ different ways. The _____________ is the measurement which has raised concern recently as it predicts the___________ ...
Star Light, Star Bright: Exploring how stars are classified
... such that a value greater than 1 means it is that many times the sun's luminosity. A value less than one means it is that fraction of the sun's value. 4. Allow time for the groups to become familiar with the stars and encourage the groups to write down what they are noticing. 5. Encourage the childr ...
... such that a value greater than 1 means it is that many times the sun's luminosity. A value less than one means it is that fraction of the sun's value. 4. Allow time for the groups to become familiar with the stars and encourage the groups to write down what they are noticing. 5. Encourage the childr ...
After Dark in Allenspark
... that with binoculars, you can see Jupiter's four moons strung out in a line near Jupiter, and that Alpha Libra is a double. I've never tried, but this sounds like a good time for it. If anyone else tries, let me know how it goes. January 14: Full moon. January 17: The first day we can try launching ...
... that with binoculars, you can see Jupiter's four moons strung out in a line near Jupiter, and that Alpha Libra is a double. I've never tried, but this sounds like a good time for it. If anyone else tries, let me know how it goes. January 14: Full moon. January 17: The first day we can try launching ...
Ch 28 Fact Sheet
... ________________ 3. Diagram that compares the luminosity of a star to its colorh ________________ 4. Draw a convex lens. ________________ 5. Draw a concave lens. ________________ 6. Which is faster the speed of light or the speed of sound? ________________ 7. Telescope that is at an advantage becaus ...
... ________________ 3. Diagram that compares the luminosity of a star to its colorh ________________ 4. Draw a convex lens. ________________ 5. Draw a concave lens. ________________ 6. Which is faster the speed of light or the speed of sound? ________________ 7. Telescope that is at an advantage becaus ...
“The Big Bang”- The Life Cycle of the Sun
... This is can be used as a KWL. Go over some thoughts about what we do know already about space? Ex: The sun is a star. Discuss why the sun is important to us. Discuss why the sun looks so much larger and brighter than other stars. Use models to explain relative size and distance. ( some examples in h ...
... This is can be used as a KWL. Go over some thoughts about what we do know already about space? Ex: The sun is a star. Discuss why the sun is important to us. Discuss why the sun looks so much larger and brighter than other stars. Use models to explain relative size and distance. ( some examples in h ...
HERE
... Spectral class O, B stars (rare, but very interesting): Giant, hot, bright, blue stars burn up quickly and die violently. Lifetime is only 1-10 million years. Spectral class A,F,G,K stars (like the Sun): Middle of the road habits. Orange, yellow or white in color. Typically will live for 1-20 bi ...
... Spectral class O, B stars (rare, but very interesting): Giant, hot, bright, blue stars burn up quickly and die violently. Lifetime is only 1-10 million years. Spectral class A,F,G,K stars (like the Sun): Middle of the road habits. Orange, yellow or white in color. Typically will live for 1-20 bi ...
Stars
... c. a set of emission lines shared with other elements. d. a set of absorption lines shared with other elements. 10. Why is the spectrum of a star called an absorption spectrum? ...
... c. a set of emission lines shared with other elements. d. a set of absorption lines shared with other elements. 10. Why is the spectrum of a star called an absorption spectrum? ...
PowerPoint - Star Life Cycle
... up with less energy than you started with! So instead of generating pressure to hold up the outer layers, the iron fusion actually takes pressure out of the core. Thus, there is nothing left to combat gravity from the outer layers. The result: collapse! ...
... up with less energy than you started with! So instead of generating pressure to hold up the outer layers, the iron fusion actually takes pressure out of the core. Thus, there is nothing left to combat gravity from the outer layers. The result: collapse! ...
talk / PPT / 1.6 MB
... What does the stellar mix in the solar column look like from a distance? ...
... What does the stellar mix in the solar column look like from a distance? ...
Document
... • Newborn stars may form a star cluster • Stars are held together in such a cluster by gravity • Occasionally a star moving more rapidly than average will escape, or “evaporate,” from such a cluster • A stellar association is a group of newborn stars that are moving apart so rapidly that their gravi ...
... • Newborn stars may form a star cluster • Stars are held together in such a cluster by gravity • Occasionally a star moving more rapidly than average will escape, or “evaporate,” from such a cluster • A stellar association is a group of newborn stars that are moving apart so rapidly that their gravi ...
Homework Problems for Quiz 1 – AY 5 – Spring 2013
... 11. Star A has twice the trigonometric parallax angle and twice the luminosity of Star B. (Assume no dust toward either star) a) What are the relative distances of the two stars? Star A has twice the parallax angle so is at 1/2 the distance of Star B b) what are the relative brightnesses of the two ...
... 11. Star A has twice the trigonometric parallax angle and twice the luminosity of Star B. (Assume no dust toward either star) a) What are the relative distances of the two stars? Star A has twice the parallax angle so is at 1/2 the distance of Star B b) what are the relative brightnesses of the two ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.