Twinkle, Twinkle Little Star
... gas and dust in my Solar Nursery and begins to Shine! When the cool masses of dust and gas combine, a star has a temperature of 1,800,000 degrees F! http://www.virginmedia.com/images/ ...
... gas and dust in my Solar Nursery and begins to Shine! When the cool masses of dust and gas combine, a star has a temperature of 1,800,000 degrees F! http://www.virginmedia.com/images/ ...
Life on the Main Sequence + Expansion to Red Giant
... Guidepost Stars form from the interstellar medium and reach stability fusing hydrogen in their cores. This chapter is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer four essential questions: • Why is there ...
... Guidepost Stars form from the interstellar medium and reach stability fusing hydrogen in their cores. This chapter is about the long, stable middle age of stars on the main sequence and their old age as they swell to become giant stars. Here you will answer four essential questions: • Why is there ...
Astronomy.Practice.Quiz3
... a. absolute magnitude and apparent magnitude b. temperature and absolute magnitude c. parallax and temperature d. apparent magnitude and parallax 11. The source of the Sun’s energy is ____. a. chemical burning b. nuclear fusion 12. What determines the final stages of a star’s life cycle? a. size b. ...
... a. absolute magnitude and apparent magnitude b. temperature and absolute magnitude c. parallax and temperature d. apparent magnitude and parallax 11. The source of the Sun’s energy is ____. a. chemical burning b. nuclear fusion 12. What determines the final stages of a star’s life cycle? a. size b. ...
Star Formation/Llfe Cycle Notes
... d. Center of protostar gets dense enough and therefore hot enough (3000K+) to become luminous, however not visible due to exterior of gas and dust surrounding it. 3) Phophids- YSO’s starting to disk a. start to get charged particles 4) Early star- Does a stutter step with nuclear fusion which blows ...
... d. Center of protostar gets dense enough and therefore hot enough (3000K+) to become luminous, however not visible due to exterior of gas and dust surrounding it. 3) Phophids- YSO’s starting to disk a. start to get charged particles 4) Early star- Does a stutter step with nuclear fusion which blows ...
The Study of the Universe
... 3. Polaris is 4.07 x 1015 km from Earth. Calculate the distance in light years. 4. The most distant objects in the Universe known to astronomers are 14 billion ly away. Convert this value into metres. 5. How far does light travel in one nanosecond? 6. Why was the star Sirius significant to some anc ...
... 3. Polaris is 4.07 x 1015 km from Earth. Calculate the distance in light years. 4. The most distant objects in the Universe known to astronomers are 14 billion ly away. Convert this value into metres. 5. How far does light travel in one nanosecond? 6. Why was the star Sirius significant to some anc ...
AV_Paper1_TheAgeOfTheUniverse
... Secondly, measurements of parallax by the Hipparcos spacecraft in 1995 revised globular cluster distances upwards by 5-10%. Finally, the observations by the Wilkinson Microwave Anisotropy Probe (WMAP) led to the acceptance of dark energy and the establishment of the Lambda-CDM model as the standard ...
... Secondly, measurements of parallax by the Hipparcos spacecraft in 1995 revised globular cluster distances upwards by 5-10%. Finally, the observations by the Wilkinson Microwave Anisotropy Probe (WMAP) led to the acceptance of dark energy and the establishment of the Lambda-CDM model as the standard ...
1 - BYU Physics and Astronomy
... 2.73K because (a) that is the temperature of the gas which emitted it, (b) that is the temperature of the intergalactic medium through which it has passed, (c) that is the temperature of the interstellar medium in the vicinity of the sun, (d) the cosmological redshift has caused it to be characteriz ...
... 2.73K because (a) that is the temperature of the gas which emitted it, (b) that is the temperature of the intergalactic medium through which it has passed, (c) that is the temperature of the interstellar medium in the vicinity of the sun, (d) the cosmological redshift has caused it to be characteriz ...
Stellar Evolution Lab
... Stage 1- Stars are born in clouds of gas and dust called Nebulas. Stage 2- The gas and dust spiral together and contract under their own gravity. The gas and dust will begin to heat up and start to glow forming Protostars. Stage 3- If a protostar contains enough matter, the central temperature will ...
... Stage 1- Stars are born in clouds of gas and dust called Nebulas. Stage 2- The gas and dust spiral together and contract under their own gravity. The gas and dust will begin to heat up and start to glow forming Protostars. Stage 3- If a protostar contains enough matter, the central temperature will ...
Life and Death Of A Star - EarthSpaceScience
... temperature • As a “normal” sized star goes through its life it cools and grows dimmer • these are know as main sequence stars ...
... temperature • As a “normal” sized star goes through its life it cools and grows dimmer • these are know as main sequence stars ...
Stellar Evolution and the HR Diagram – Study Guide
... phosphorus, magnesium, iron, and calcium that make up our bodies. So we really are made of atoms that were formed first in the dying explosions of long dead stars. 30. MINI-Essay: How is a supernova both a beginning and an end? Supernovae are the result of the death of a star that can no longer car ...
... phosphorus, magnesium, iron, and calcium that make up our bodies. So we really are made of atoms that were formed first in the dying explosions of long dead stars. 30. MINI-Essay: How is a supernova both a beginning and an end? Supernovae are the result of the death of a star that can no longer car ...
spring_2002_final - University of Maryland Astronomy
... C. using its angular size and distance from Earth. D. using data from spacecraft flybys. E. by measuring the time that it takes for the Red Spot to disappear from view. 49. If you were thrown onto the Martian surface near the equator without a spacesuit, what would be the most likely cause of your d ...
... C. using its angular size and distance from Earth. D. using data from spacecraft flybys. E. by measuring the time that it takes for the Red Spot to disappear from view. 49. If you were thrown onto the Martian surface near the equator without a spacesuit, what would be the most likely cause of your d ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... several distinct types, as is evident from their spectra—the graphs astronomers plot showing the distribution of colors of the supernova light. One major category is core-collapse supernovae, where a very massive star becomes unstable and explodes. The most mysterious of these are known as Type IIb. ...
... several distinct types, as is evident from their spectra—the graphs astronomers plot showing the distribution of colors of the supernova light. One major category is core-collapse supernovae, where a very massive star becomes unstable and explodes. The most mysterious of these are known as Type IIb. ...
MULTIPLE CHOICE. Choose the one alternative that best
... A) They are holes in the solar surface through which we can see to deeper, darker layers of the Sun. B) They are too cold to emit any visible light. C) They emit light in other wavelengths that we canʹt see. D) They are tiny black holes, absorbing all light that hits them. E) They actually are fairl ...
... A) They are holes in the solar surface through which we can see to deeper, darker layers of the Sun. B) They are too cold to emit any visible light. C) They emit light in other wavelengths that we canʹt see. D) They are tiny black holes, absorbing all light that hits them. E) They actually are fairl ...
Astronomy Quiz 12 “Stars
... _____1. How bright a star appears from 10 parsecs away is the star’s __ magnitude. A. luminous B. absolute C. apparent D. relative _____2. 80% of all stars in the galaxy are __ while only 1 in 10,000 is a __. A. white dwarfs / red giant C. red giants / blue dwarfs B. yellow dwarfs / red supergiant D ...
... _____1. How bright a star appears from 10 parsecs away is the star’s __ magnitude. A. luminous B. absolute C. apparent D. relative _____2. 80% of all stars in the galaxy are __ while only 1 in 10,000 is a __. A. white dwarfs / red giant C. red giants / blue dwarfs B. yellow dwarfs / red supergiant D ...
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. ...
Powerpoint for today
... 2. If you are in freefall, you are also weightless. Einstein says these are equivalent. So in freefall, the light and the ball also travel in straight lines. 3. Now imagine two people in freefall on Earth, passing a ball back and forth. From their perspective, they pass the ball in a straight line. ...
... 2. If you are in freefall, you are also weightless. Einstein says these are equivalent. So in freefall, the light and the ball also travel in straight lines. 3. Now imagine two people in freefall on Earth, passing a ball back and forth. From their perspective, they pass the ball in a straight line. ...
Lecture 10: Stars
... Often only seeing a point of light & Stars are so small compared to their distance that we almost never have the resolution to see their sizes and details directly – “point sources” & We deduce everything by measuring the amount of light (brightness) at different wavelengths (color, spectra) ...
... Often only seeing a point of light & Stars are so small compared to their distance that we almost never have the resolution to see their sizes and details directly – “point sources” & We deduce everything by measuring the amount of light (brightness) at different wavelengths (color, spectra) ...
The Stars - Department of Physics and Astronomy
... More On Solar Structure • Hydrogen fusion takes place in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
... More On Solar Structure • Hydrogen fusion takes place in a core extending from the Sun’s center to about 0.25 solar radius • The core is surrounded by a radiative zone extending to about 0.71 solar radius – In this zone, energy travels outward through radiative diffusion ...
Lesson 3 Power Notes Outline
... White dwarfs shine for billions of years, becoming fainter as they cool. This is the final stage in the life cycle of low-mass stars. ...
... White dwarfs shine for billions of years, becoming fainter as they cool. This is the final stage in the life cycle of low-mass stars. ...
Stars
... other elements in stars. A spectrograph is a device that breaks light into colors and produces an image of the resulting spectrum. ...
... other elements in stars. A spectrograph is a device that breaks light into colors and produces an image of the resulting spectrum. ...
review
... • C. convection currents or updrafts from the nuclear furnace • D. the physical size of the neutrons (A) ...
... • C. convection currents or updrafts from the nuclear furnace • D. the physical size of the neutrons (A) ...