The Scales of Things
... • Measure the time it takes beam to leave Earth, bounce off planet (or whatever), and return to Earth. This represents the time for the beam, traveling at c, to cover twice the distance between Earth and the target object. 2d = c t d = ct/2 d ...
... • Measure the time it takes beam to leave Earth, bounce off planet (or whatever), and return to Earth. This represents the time for the beam, traveling at c, to cover twice the distance between Earth and the target object. 2d = c t d = ct/2 d ...
star
... • There are three interior layers of a typical star. • When first formed, all stars fuse hydrogen into helium in their cores. ...
... • There are three interior layers of a typical star. • When first formed, all stars fuse hydrogen into helium in their cores. ...
Life Cycle of a Star - Intervention Worksheet
... planetary nebula. The blue-white hot core of the star that is left behind cools and becomes a white dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a supernova. Afte ...
... planetary nebula. The blue-white hot core of the star that is left behind cools and becomes a white dwarf. The white dwarf eventually runs out of fuel and dies as a black dwarf. The Death of a High Mass Star A dying red super giant star can suddenly explode. The explosion is called a supernova. Afte ...
What is a Star? - Yale Astronomy
... 1. The surface of the earth – you could stand on it, if you could survive the intense heat 2. The surface of the ocean you couldn’t stand on it, but you would clearly be able to detect differences above and below it 3. An apparent surface - you would notice very little change as you go through it ...
... 1. The surface of the earth – you could stand on it, if you could survive the intense heat 2. The surface of the ocean you couldn’t stand on it, but you would clearly be able to detect differences above and below it 3. An apparent surface - you would notice very little change as you go through it ...
NCEA Level 2 Earth and Space Science (91192) 2015
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
NCEA Level 2 Earth and Space Science (91192) 2015
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
... begin to collide and form bigger masses. The bigger masses collect more particles due to increasing gravitational field strength. There are two things that affect the formation of planets – temperature and the presence or absence of solar winds. The inner planets have formed in a higher temperature ...
Measuring Stellar Distances
... Measuring the parallactic ellipse (or parallactic angle) is difficult and the first credible measurement was not made until 1839. In general, atmospheric motions limit the angular resolution of a single ground-based image (photographic or digital) to an accuracy of 0.5 - 1.0 arc seconds which is not ...
... Measuring the parallactic ellipse (or parallactic angle) is difficult and the first credible measurement was not made until 1839. In general, atmospheric motions limit the angular resolution of a single ground-based image (photographic or digital) to an accuracy of 0.5 - 1.0 arc seconds which is not ...
August 2015 - Shasta Astronomy Club
... see, but people didn’t know to look at it.” Romanowsky was also part of the team that found the first ultracompact dwarf galaxy two years ago. [A Tiny Dwarf Galaxy and Its Giant Black Hole (Video)] In the past, such star clusters would have been mistaken for foreground stars because of their brightn ...
... see, but people didn’t know to look at it.” Romanowsky was also part of the team that found the first ultracompact dwarf galaxy two years ago. [A Tiny Dwarf Galaxy and Its Giant Black Hole (Video)] In the past, such star clusters would have been mistaken for foreground stars because of their brightn ...
Sun and Other Stars Notes
... helium, this is called the proton-proton chain -Sun fuses ________________________ of material per second, very little mass is lost in the Sun, most is just converted into another element -Why is observation of Solar Neutrinos important? - Astronomers cannot witness nuclear fusion in the core of the ...
... helium, this is called the proton-proton chain -Sun fuses ________________________ of material per second, very little mass is lost in the Sun, most is just converted into another element -Why is observation of Solar Neutrinos important? - Astronomers cannot witness nuclear fusion in the core of the ...
1-Syllabus-Intro
... Exam scores will be posted by your course and ID# on the web. If you feel there’s a mistake on the multiple-choice part of an exam, please see the secretary in the astronomy department office, 356 Physics. Questions about essay questions should be directed to the professor. Environmental theme: This ...
... Exam scores will be posted by your course and ID# on the web. If you feel there’s a mistake on the multiple-choice part of an exam, please see the secretary in the astronomy department office, 356 Physics. Questions about essay questions should be directed to the professor. Environmental theme: This ...
Evolution of low
... • At least 15% of the stellar mass in the solar neighborhood is in the form of WDs. They are very common, though hard to see. ...
... • At least 15% of the stellar mass in the solar neighborhood is in the form of WDs. They are very common, though hard to see. ...
Constellations - Sierra Star Gazers
... has the distinction of being one of the largest and brightest stars in the known galaxy. While too far for a good parallax distance calculation, Mu Cephei is thought to be about 2400 light years away. With a radius 1,650 times larger than our Sun’s, if placed in the center of our solar system the su ...
... has the distinction of being one of the largest and brightest stars in the known galaxy. While too far for a good parallax distance calculation, Mu Cephei is thought to be about 2400 light years away. With a radius 1,650 times larger than our Sun’s, if placed in the center of our solar system the su ...
Chap. 02
... For a degenerate gas, the ignition of helium burning will heat the gas, but do not cause expand The increased temperature makes the reaction go faster, which further heats the gas, which makes the reaction goes faster. This cycle of explosive nuclear reaction continues until temperature is high enou ...
... For a degenerate gas, the ignition of helium burning will heat the gas, but do not cause expand The increased temperature makes the reaction go faster, which further heats the gas, which makes the reaction goes faster. This cycle of explosive nuclear reaction continues until temperature is high enou ...
Astronomy Teleclass Webinar!
... Vocabulary Words: Black holes are the leftovers of a BIG supernova. When a star explodes, it collapses down into a white dwarf or a neutron star. However, if the star is large enough, there is nothing to keep it from collapsing, so it continues to collapse forever. It becomes so small and dense t ...
... Vocabulary Words: Black holes are the leftovers of a BIG supernova. When a star explodes, it collapses down into a white dwarf or a neutron star. However, if the star is large enough, there is nothing to keep it from collapsing, so it continues to collapse forever. It becomes so small and dense t ...
The Properties of Stars
... relatively short life (30 million years) • Cores complete many fusion reactions: • Hydrogen →helium → carbon → neon → silicon → iron ...
... relatively short life (30 million years) • Cores complete many fusion reactions: • Hydrogen →helium → carbon → neon → silicon → iron ...
Lecture 5: The H-R diagram, standard candles and cosmic distances
... • The greater the mass of a MS star, the greater its luminosity (and also the greater its radius and surface temperature) • The mass-luminosity relation expresses a direct correlation between mass and luminosity for mainsequence stars. It is found that L scales strongly with mass, approximately as ...
... • The greater the mass of a MS star, the greater its luminosity (and also the greater its radius and surface temperature) • The mass-luminosity relation expresses a direct correlation between mass and luminosity for mainsequence stars. It is found that L scales strongly with mass, approximately as ...
Branches of Astronomy
... Full moon - The phase of the moon when the side facing the earth is completely lit by sunlight. Geology - the study of the Earth. Giant planets - Jupiter, Saturn, Uranus, and Neptune. Gibbous moon - the phases between half moon and full moon. Great Red Spot - Thel large red storm going around like a ...
... Full moon - The phase of the moon when the side facing the earth is completely lit by sunlight. Geology - the study of the Earth. Giant planets - Jupiter, Saturn, Uranus, and Neptune. Gibbous moon - the phases between half moon and full moon. Great Red Spot - Thel large red storm going around like a ...
Sample Math problems
... b) The star is moving away from us c) The star is expanding d) The star is moving toward us e) The star is getting hotter. 2) From laboratory measurements, we know that a particular spectral line formed by sodium appears at a wavelength of 589.6 nanometers (nm). You measure the same line in a distan ...
... b) The star is moving away from us c) The star is expanding d) The star is moving toward us e) The star is getting hotter. 2) From laboratory measurements, we know that a particular spectral line formed by sodium appears at a wavelength of 589.6 nanometers (nm). You measure the same line in a distan ...
January 2006
... • Core radiates only by stored heat, not by nuclear reactions • core continues to cool and contract • Size ~ Earth • Density: a million times that of Earth – 1 cubic cm has 1000 kg of mass! ...
... • Core radiates only by stored heat, not by nuclear reactions • core continues to cool and contract • Size ~ Earth • Density: a million times that of Earth – 1 cubic cm has 1000 kg of mass! ...
Starbirth and Interstellar Matter
... 4. Current ideas picture interstellar dust grains as: A. small (micrometers), made of ices only. B. small (micrometers), made of ices and rocky materials. C. small (micrometers), made of ices, rocks, and metals. D. large (meters), made of ices, rocks, and metals. 5. A way to form hydrogen molecules ...
... 4. Current ideas picture interstellar dust grains as: A. small (micrometers), made of ices only. B. small (micrometers), made of ices and rocky materials. C. small (micrometers), made of ices, rocks, and metals. D. large (meters), made of ices, rocks, and metals. 5. A way to form hydrogen molecules ...