June 2016 - Flint River Astronomy Club
... between your pupils, you can figure out how far away your thumb is. And while that measurement is unimportant, the same principle can be applied on a larger scale to distant stars and galaxies as seen from both sides of Earth’s orbit. Arc-seconds. An arc-second is a measure of distance, not time. On ...
... between your pupils, you can figure out how far away your thumb is. And while that measurement is unimportant, the same principle can be applied on a larger scale to distant stars and galaxies as seen from both sides of Earth’s orbit. Arc-seconds. An arc-second is a measure of distance, not time. On ...
BROCK UNIVERSITY Return both the exam script
... (b) the Moon is closer to the Sun, and the greater heat “boiled” its atmosphere away. (c) Earth has life, and the Moon does not. (d) the Earth has greater mass, and therefore greater surface gravity. 20. The Sun (a) is much like other average stars. (b) is much larger and hotter than other average s ...
... (b) the Moon is closer to the Sun, and the greater heat “boiled” its atmosphere away. (c) Earth has life, and the Moon does not. (d) the Earth has greater mass, and therefore greater surface gravity. 20. The Sun (a) is much like other average stars. (b) is much larger and hotter than other average s ...
Space Systems - RPS Cloud Server
... appear to move across the night sky because of Earth’s rotation. They will construct and support an argument regarding why we see differences in the brightness of the sun compared to other stars. Finally, students will use evidence, data, and/or models to describe the gravitational force exerted by ...
... appear to move across the night sky because of Earth’s rotation. They will construct and support an argument regarding why we see differences in the brightness of the sun compared to other stars. Finally, students will use evidence, data, and/or models to describe the gravitational force exerted by ...
What is a star?
... • Stars have different sizes, ranging from 1/100 the size of the sun to 1,000 times the size of the sun. • Two or more stars may be bound together by gravity, which causes them to orbit each other. • Three or more stars that are bound by gravity are called multiple stars or multiple star systems. ...
... • Stars have different sizes, ranging from 1/100 the size of the sun to 1,000 times the size of the sun. • Two or more stars may be bound together by gravity, which causes them to orbit each other. • Three or more stars that are bound by gravity are called multiple stars or multiple star systems. ...
Observational properties of stars
... evolve very slowly so it is not possible to see significant changes in any stars during your life. There are occasional sporadic changes, like supernovae, but those are rare. Stars will take millions or billions of years to change their observable characteristics. So how is it possible to observe an ...
... evolve very slowly so it is not possible to see significant changes in any stars during your life. There are occasional sporadic changes, like supernovae, but those are rare. Stars will take millions or billions of years to change their observable characteristics. So how is it possible to observe an ...
Lecture 16
... How does the life of a high-mass star differ from the Sun’s life? A. It forms much faster. B. It lives a shorter time on the main sequence. C. As a red giant or supergiant, it makes elements heavier than carbon. D. When it dies, it explodes in a tremendous supernova ...
... How does the life of a high-mass star differ from the Sun’s life? A. It forms much faster. B. It lives a shorter time on the main sequence. C. As a red giant or supergiant, it makes elements heavier than carbon. D. When it dies, it explodes in a tremendous supernova ...
Evolution of High
... • During the main-sequence phase of the star’s life, it allows for a more efficient process (the CNO cycle) to fuse hydrogen into helium at a much higher rate. • The high temperature and high density conditions also allow fusion of increasingly heavy elements to happen. – The core fuses heavier and ...
... • During the main-sequence phase of the star’s life, it allows for a more efficient process (the CNO cycle) to fuse hydrogen into helium at a much higher rate. • The high temperature and high density conditions also allow fusion of increasingly heavy elements to happen. – The core fuses heavier and ...
Core-collapse supernovae and their massive progenitors
... burst afterglows, it is only after the power-law afterglow fades (after about 10 days) that the SNe are seen as late bumps or flux excesses. Until recently, all long-duration GRBs that were close enough for SN detection did indeed show Type Ic features. However, the recent, very close events GRB 060 ...
... burst afterglows, it is only after the power-law afterglow fades (after about 10 days) that the SNe are seen as late bumps or flux excesses. Until recently, all long-duration GRBs that were close enough for SN detection did indeed show Type Ic features. However, the recent, very close events GRB 060 ...
Stars III The Hertzsprung
... Stars in the lower left are white dwarfs (Sirius B, Procyon B) These categories represent an evolutionary sequence ...
... Stars in the lower left are white dwarfs (Sirius B, Procyon B) These categories represent an evolutionary sequence ...
I Cloudy with a Chance of Making a star is no easy thing
... COURTESY OF THE GLIMPSE TEAM/UNIVERSITY OF WISCONSIN–MADISON ...
... COURTESY OF THE GLIMPSE TEAM/UNIVERSITY OF WISCONSIN–MADISON ...
What we can measure
... and watch one orbit the other. These are called visual binaries. We need to be careful here, since some stars only appear to be close due to our perspective. These are called “optical doubles” and not real binary systems at all. We can tell the difference by watching these over time or by noting tha ...
... and watch one orbit the other. These are called visual binaries. We need to be careful here, since some stars only appear to be close due to our perspective. These are called “optical doubles” and not real binary systems at all. We can tell the difference by watching these over time or by noting tha ...
05Sky1.ppt - NMSU Astronomy
... – Different cultures have come up with different constellations • Constellations are nice to know for finding your way around the sky, but are not really associated “astronomically”, because stars in a given constellation may be at very different distances! – Constellations are not usually clusters! ...
... – Different cultures have come up with different constellations • Constellations are nice to know for finding your way around the sky, but are not really associated “astronomically”, because stars in a given constellation may be at very different distances! – Constellations are not usually clusters! ...
pdf version
... that the young solar system must have been filled very early with colliding planetary embryos known as ‘‘planetesimals’’. In Chapter 3, we have attempted to describe in a simplified fashion the chronology of the evolution of the solar system, starting with the birth of its parent star, our Sun, and en ...
... that the young solar system must have been filled very early with colliding planetary embryos known as ‘‘planetesimals’’. In Chapter 3, we have attempted to describe in a simplified fashion the chronology of the evolution of the solar system, starting with the birth of its parent star, our Sun, and en ...
Lecture 10: Stellar Evolution
... The closest supernova in the last four centuries was seen in 1987 ...
... The closest supernova in the last four centuries was seen in 1987 ...
Galaxies, Cosmology and the Accelera`ng Universe
... • Current thinking is that the thick disk stars were originally in the thin disk but were sca?ered • (some recent observa6ons suggest that there is not such a big difference between the thick and ...
... • Current thinking is that the thick disk stars were originally in the thin disk but were sca?ered • (some recent observa6ons suggest that there is not such a big difference between the thick and ...
Today`s Powerpoint
... LSun = 4 x10 33 erg/s (amount of energy put out every second in form of radiation). Luminosity also called “absolute brightness”. How bright a star appears to us is the “apparent brightness”, which depends on its luminosity and distance from us: apparent brightness ...
... LSun = 4 x10 33 erg/s (amount of energy put out every second in form of radiation). Luminosity also called “absolute brightness”. How bright a star appears to us is the “apparent brightness”, which depends on its luminosity and distance from us: apparent brightness ...
Required Project #1 Questions from “Guide to Using Starry Night Pro
... 1. How do the stars appear to move as the time changes in sidereal day units? a. from East to West b. from West to East c. from North to South d. from South to North e. they remain fixed 2. Now change the date to 2/4/2001 and turn off the daylight. With the time-step setting on sidereal day, you wil ...
... 1. How do the stars appear to move as the time changes in sidereal day units? a. from East to West b. from West to East c. from North to South d. from South to North e. they remain fixed 2. Now change the date to 2/4/2001 and turn off the daylight. With the time-step setting on sidereal day, you wil ...
Stars, Galaxies, and the Universe Section 1 Section 1
... from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear to move much. • Earth’s revolution around the sun cause ...
... from Earth, is caused by the movement of Earth. • The stars seem as though they are moving counterclockwise around a central star called Polaris, the North Star. Polaris is almost directly above the North Pole, and thus the star does not appear to move much. • Earth’s revolution around the sun cause ...
How to Find the North Star ppt
... North Star is named Polaris. It is found in the LITTLE Dipper. The BIG Dipper is more easily visible and can be used to locate the Little Dipper. ...
... North Star is named Polaris. It is found in the LITTLE Dipper. The BIG Dipper is more easily visible and can be used to locate the Little Dipper. ...
Chapter 13 section 3
... What is a white dwarf? The star’s core contracts even more after it uses much of its helium and the outer layers escape into space. This leaves only the hot, dense core. At this stage in a star’s life cycle, it is about the size of Earth. It is called a white dwarf. In time, the white dwarf will coo ...
... What is a white dwarf? The star’s core contracts even more after it uses much of its helium and the outer layers escape into space. This leaves only the hot, dense core. At this stage in a star’s life cycle, it is about the size of Earth. It is called a white dwarf. In time, the white dwarf will coo ...
Einstein
... – runaway carbon fusion in core – causes explosion – since they all attain the same peak luminosity white dwarf supernovae make good distance indicators – they are more luminous than Cepheid variable stars so they can be used to measure out to greater distances than Cepheid variables ...
... – runaway carbon fusion in core – causes explosion – since they all attain the same peak luminosity white dwarf supernovae make good distance indicators – they are more luminous than Cepheid variable stars so they can be used to measure out to greater distances than Cepheid variables ...