Chapter 8: Stars
... • Although stars may stay on the main sequence for a long time, they don’t stay their forever. • Average stars like the Sun, become red giants and then white dwarfs. • Massive stars use their hydrogen much faster than stars like the sun do. ...
... • Although stars may stay on the main sequence for a long time, they don’t stay their forever. • Average stars like the Sun, become red giants and then white dwarfs. • Massive stars use their hydrogen much faster than stars like the sun do. ...
Lecture 7 Stars and Galaxies and Nebula, (Oh My!) Feb 18 2003
... They orbit in the disk of our galaxy and don't last very long, members escape the group over time. All about the same age and composition so it is likely that they formed around the same time. ...
... They orbit in the disk of our galaxy and don't last very long, members escape the group over time. All about the same age and composition so it is likely that they formed around the same time. ...
Unit 2-1 Life Cycle of the Sun
... The purpose of this activity is to have you observe the changes in the temperature, absolute magnitude, and other observable characteristics of two different types of stars as they go through their life cycles. The absolute magnitude is a measure of how bright a star would appear if it was approxima ...
... The purpose of this activity is to have you observe the changes in the temperature, absolute magnitude, and other observable characteristics of two different types of stars as they go through their life cycles. The absolute magnitude is a measure of how bright a star would appear if it was approxima ...
binary star
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
... • Only 10 percent of the known galaxies have irregular shapes and are classified as irregular galaxies. • In addition to shape and size, one of the major differences among different types of galaxies is the age of their stars. Irregular galaxies contain young stars. ...
Physics@Brock - Brock University
... • Describe luminosity classes and how they are determined. • Explain how the masses of stars are estimated, and apply Newton’s version of Kepler’s third law to determine such masses. • Describe the layout of the Hertzsprung-Russell (H-R) diagram, and infer a star’s size and evolutionary state based ...
... • Describe luminosity classes and how they are determined. • Explain how the masses of stars are estimated, and apply Newton’s version of Kepler’s third law to determine such masses. • Describe the layout of the Hertzsprung-Russell (H-R) diagram, and infer a star’s size and evolutionary state based ...
Lecture2
... objects in the sky “rise” and “set” due to the rotation of the earth. Sizes of objects on the sky are measured as ...
... objects in the sky “rise” and “set” due to the rotation of the earth. Sizes of objects on the sky are measured as ...
- Stevenson High School
... the Sun places different regions of the sky in our nighttime view. A chart of the night sky will map the locations of the stars; a star wheel will let us know which stars will be visible during any time of night for any time of year. Position the star wheel so that the side with the title (not the i ...
... the Sun places different regions of the sky in our nighttime view. A chart of the night sky will map the locations of the stars; a star wheel will let us know which stars will be visible during any time of night for any time of year. Position the star wheel so that the side with the title (not the i ...
Unit Two Worksheet – Astronomy
... The spectra of most galaxies tested with spectroscopic equipment were shifted toward the ___ end of the visible spectrum. (A) red (B) blue (C) green (D) violet ...
... The spectra of most galaxies tested with spectroscopic equipment were shifted toward the ___ end of the visible spectrum. (A) red (B) blue (C) green (D) violet ...
Back to basics: naked-eye astronomical observation
... compass points or clock positions relative to a given reference point are rapidly picked up. Once pupils have covered angles, they readily accept that all objects appear to be on a tilted dome above our head. The apex of the dome is Polaris and the dome (which astronomers call the Celestial Sphere), ...
... compass points or clock positions relative to a given reference point are rapidly picked up. Once pupils have covered angles, they readily accept that all objects appear to be on a tilted dome above our head. The apex of the dome is Polaris and the dome (which astronomers call the Celestial Sphere), ...
1. If a star`s temperature is doubled but radius is kept constant, by
... 1. If a star’s temperature is doubled but radius is kept constant, by how much does its luminosity go up by? 1a. Goes up by a factor of 24 = 16. 2. If a star’s temperature is increased by a factor of three, four, five and six, but in every case its radius is kept constant, what happens to its lumino ...
... 1. If a star’s temperature is doubled but radius is kept constant, by how much does its luminosity go up by? 1a. Goes up by a factor of 24 = 16. 2. If a star’s temperature is increased by a factor of three, four, five and six, but in every case its radius is kept constant, what happens to its lumino ...
The Galactic Super Star Cluster Westerlund 1
... times the mass of Orion. Therefore, we would have expected diffuse emission with L x = 3x10 35 erg s-1, which is five times more flux than we observe. We suggest that the IMF is nonstandard, as is often claimed for young, massive star clusters. ...
... times the mass of Orion. Therefore, we would have expected diffuse emission with L x = 3x10 35 erg s-1, which is five times more flux than we observe. We suggest that the IMF is nonstandard, as is often claimed for young, massive star clusters. ...
answers
... distant objects ever found. All of the objects are galaxies of stars except for E, which is a single nearby star. Which object is more luminous? A) E B) F C) they are about the same B) The two objects look equally bright, but are very different. The star is much closer and much less luminous. The ga ...
... distant objects ever found. All of the objects are galaxies of stars except for E, which is a single nearby star. Which object is more luminous? A) E B) F C) they are about the same B) The two objects look equally bright, but are very different. The star is much closer and much less luminous. The ga ...
Name ______KEY Date Core ______ Study Guide Galaxies and the
... happened 14 billion years ago when the universe suddenly began to expand from one merged mass of matter or substance. At that time, all matter was dense and hot and the universe developed in less than a second. 300,000 years later, the first elements formed, then stars, planets and galaxies the next ...
... happened 14 billion years ago when the universe suddenly began to expand from one merged mass of matter or substance. At that time, all matter was dense and hot and the universe developed in less than a second. 300,000 years later, the first elements formed, then stars, planets and galaxies the next ...
Cassiopeia (constellation)
Cassiopeia is a constellation in the northern sky, named after the vain queen Cassiopeia in Greek mythology, who boasted about her unrivalled beauty. Cassiopeia was one of the 48 constellations listed by the 2nd-century Greek astronomer Ptolemy, and it remains one of the 88 modern constellations today. It is easily recognizable due to its distinctive 'M' shape when in upper culmination but in higher northern locations when near lower culminations in spring and summer it has a 'W' shape, formed by five bright stars. It is bordered by Andromeda to the south, Perseus to the southeast, and Cepheus to the north. It is opposite the Big Dipper.In northern locations above 34ºN latitude it is visible year-round and in the (sub)tropics it can be seen at its clearest from September to early November in its characteristic 'M' shape. Even in low southern latitudes below 25ºS is can be seen low in the North.