Document
... Astronomical distances are so large that we use the speed of light to measure them Mean Earth-Sun Distance – 150 million Km = 1 Astronomical Unit (AU) = 8.3 Light Minutes 1 Light Year (Ly) = 9.5 trillion Km = 63,240 AU Parsec = 3.26 Lys (parallax angle unit) ...
... Astronomical distances are so large that we use the speed of light to measure them Mean Earth-Sun Distance – 150 million Km = 1 Astronomical Unit (AU) = 8.3 Light Minutes 1 Light Year (Ly) = 9.5 trillion Km = 63,240 AU Parsec = 3.26 Lys (parallax angle unit) ...
M - IMAG2E
... The differences are interpreted due to age – open clusters lie in the disk of the Milky Way and have large range of ages. The Globulars are all ancient, with the oldest tracing the earliest stages of the formation of Milky Way (~ 12 109 yrs) ...
... The differences are interpreted due to age – open clusters lie in the disk of the Milky Way and have large range of ages. The Globulars are all ancient, with the oldest tracing the earliest stages of the formation of Milky Way (~ 12 109 yrs) ...
Radiation from Proxima Centauri
... Careful analysis of the spectrum shows that the surface temperature of Proxima Centauri is 3042 K. Use this information to show that the peak wavelength is approximately 106 m and label the peak wavelength of the spectrum with a more accurate figure. ...
... Careful analysis of the spectrum shows that the surface temperature of Proxima Centauri is 3042 K. Use this information to show that the peak wavelength is approximately 106 m and label the peak wavelength of the spectrum with a more accurate figure. ...
lecture25
... If light is particles, theory predicts: • Increasing intensity increases number of electrons but not energy • Above a minimum energy required to break atomic bond, kinetic energy will increase linearly with frequency • There is a cutoff frequency below which no electrons will be emitted, regardless ...
... If light is particles, theory predicts: • Increasing intensity increases number of electrons but not energy • Above a minimum energy required to break atomic bond, kinetic energy will increase linearly with frequency • There is a cutoff frequency below which no electrons will be emitted, regardless ...
Chapter 5 Mid-term Study Guide
... ______11. constellation ______12. Polaris ______13. light-year ______14. Proxima Centauri ______15. nebula ______16. black hole ______17. magnitude ______18. supernova A brightness of a star B measure of distance C nearest star to sun D pattern of stars E largest type of star F cloud of dust and gas ...
... ______11. constellation ______12. Polaris ______13. light-year ______14. Proxima Centauri ______15. nebula ______16. black hole ______17. magnitude ______18. supernova A brightness of a star B measure of distance C nearest star to sun D pattern of stars E largest type of star F cloud of dust and gas ...
M. Meixner
... in the LMC and also scaled down if it were in N6822. For comparison, the expected sensitivities of MIRI imaging and spectroscopy modes are also plotted, for various S/N ratios and integration times. MIRI will enable detailed studies of the very final stages of stellar evolution for many nearby galax ...
... in the LMC and also scaled down if it were in N6822. For comparison, the expected sensitivities of MIRI imaging and spectroscopy modes are also plotted, for various S/N ratios and integration times. MIRI will enable detailed studies of the very final stages of stellar evolution for many nearby galax ...
Discussion Activity #11a
... A. It is because the cores of low-mass stars never get hot enough for carbon fusion. B. It is because carbon fusion can occur only in the stars known as carbon stars. C. It is because the cores of low-mass stars never contain significant amounts of carbon. D. It is because only high-mass stars do fu ...
... A. It is because the cores of low-mass stars never get hot enough for carbon fusion. B. It is because carbon fusion can occur only in the stars known as carbon stars. C. It is because the cores of low-mass stars never contain significant amounts of carbon. D. It is because only high-mass stars do fu ...
ACTIVITY SPACE DISCOVERIES LOCATION ASTRONOMY CENTRE
... the light from the bright sphere (star) as it goes round. ...
... the light from the bright sphere (star) as it goes round. ...
My Presentation
... Deep inside, a gas called hydrogen is changed into gas called helium. As it changes, it gives off energy. The star then gets very hot and gives off light. Stars have different temperatures and sizes. As a result, some stars are brighter than others, and they have different colors. Some stars look ye ...
... Deep inside, a gas called hydrogen is changed into gas called helium. As it changes, it gives off energy. The star then gets very hot and gives off light. Stars have different temperatures and sizes. As a result, some stars are brighter than others, and they have different colors. Some stars look ye ...
Topic 16: Geometric Optics
... After studying energy, momentum, electromagnetic waves, vibration and waves, a groundwork has been set to compare mechanical waves to light waves. One example would be Max Plank’s packages of light energy (E = hf) and Einstein’s photoelectric effect that both relate frequency of light to the energy ...
... After studying energy, momentum, electromagnetic waves, vibration and waves, a groundwork has been set to compare mechanical waves to light waves. One example would be Max Plank’s packages of light energy (E = hf) and Einstein’s photoelectric effect that both relate frequency of light to the energy ...
1 Intro to Astronomy
... people noticed the big glowy ball in the sky (the sun) and how it lit everything up while it was up, and how it got dark when it was gone; the other fainter glowy thing (the moon) wasn't quite as good as lighting up the night; they probably also noticed that when certain stars appeared in the sky, t ...
... people noticed the big glowy ball in the sky (the sun) and how it lit everything up while it was up, and how it got dark when it was gone; the other fainter glowy thing (the moon) wasn't quite as good as lighting up the night; they probably also noticed that when certain stars appeared in the sky, t ...
Week 9A
... Using Kepler’s Law and the mass and speed of the Sun, we estimate the mass of the Galaxy to be 1.1x1011 solar masses. ...
... Using Kepler’s Law and the mass and speed of the Sun, we estimate the mass of the Galaxy to be 1.1x1011 solar masses. ...
J S U N I L T U... 2011 “Chase Excellence- Success Will Follow” ll Follow”
... Which of the following is NOT a member of the solar system? (a) An asteroid (b) A satellite (c) A constellation(d) A comet Ans (c) Constellation A constellation is not a member of the solar system. Constellations are groups of stars that form recognisable shapes.Which of the following is NOT a plane ...
... Which of the following is NOT a member of the solar system? (a) An asteroid (b) A satellite (c) A constellation(d) A comet Ans (c) Constellation A constellation is not a member of the solar system. Constellations are groups of stars that form recognisable shapes.Which of the following is NOT a plane ...
3min
... -We already have the algorithm -Now we need to apply it to large sets of galaxies and analyze the results -Possible projects include: -Running the code on an existing database of 1M galaxies -Studying results to see if/when/how it went wrong -Finding new galaxies in Hubble Space Telescope images -Et ...
... -We already have the algorithm -Now we need to apply it to large sets of galaxies and analyze the results -Possible projects include: -Running the code on an existing database of 1M galaxies -Studying results to see if/when/how it went wrong -Finding new galaxies in Hubble Space Telescope images -Et ...
August
... M13 At a distance of 25,100 light years, this globular cluster in the constellation Hercules (HER-cueleez) is about 145 light years in diameter. The age of M13 has been estimated at over 10 billion years. It contains over 300,000 stars. At the center, stars are about 500 times more concentrated than ...
... M13 At a distance of 25,100 light years, this globular cluster in the constellation Hercules (HER-cueleez) is about 145 light years in diameter. The age of M13 has been estimated at over 10 billion years. It contains over 300,000 stars. At the center, stars are about 500 times more concentrated than ...
File - Morgan, Kristen
... How can we find them if we can’t see them? We can’t, for sure. Matter falling into a black hole releases large bursts of X-rays. ...
... How can we find them if we can’t see them? We can’t, for sure. Matter falling into a black hole releases large bursts of X-rays. ...
lecture22
... Question: What is changed, when a light wave enters into a medium of different optical density? A) its speed and frequency B) its speed and wavelength C) its frequency and wavelength D) its speed, frequency & wavelength 3) Mirage ...
... Question: What is changed, when a light wave enters into a medium of different optical density? A) its speed and frequency B) its speed and wavelength C) its frequency and wavelength D) its speed, frequency & wavelength 3) Mirage ...
Objective – I can describe the scale of size, distance between
... The Solar System is very, very small compared to the Milky Way. The Milky Way is very, very small compared to the Local Group. The Local Group is very, very small compared to the Virgo Galactic Supercluster. Everything is very, very small compared to the universe. The Universe in Numbers The Milky W ...
... The Solar System is very, very small compared to the Milky Way. The Milky Way is very, very small compared to the Local Group. The Local Group is very, very small compared to the Virgo Galactic Supercluster. Everything is very, very small compared to the universe. The Universe in Numbers The Milky W ...
Looking at our Neighbors with the VLA
... Objects which are very close to the Earth may be in the near-field of the interferometer. In this case, there is the additional complexity that the received e-m radiation cannot be assumed to be a plane wave. Because of this, an additional phase term in the relationship between the visibility and sk ...
... Objects which are very close to the Earth may be in the near-field of the interferometer. In this case, there is the additional complexity that the received e-m radiation cannot be assumed to be a plane wave. Because of this, an additional phase term in the relationship between the visibility and sk ...
Universe, Galaxies, and Stars – The Basics
... Answer: YES! Want an example? Think of another kind of wave that you’re very familiar with… sound. Have you ever stood on the side of the road as an ambulance races past? The sound seems to build up and get louder and higher pitched as the ambulance gets closer. Then the sound seems to fade out, get ...
... Answer: YES! Want an example? Think of another kind of wave that you’re very familiar with… sound. Have you ever stood on the side of the road as an ambulance races past? The sound seems to build up and get louder and higher pitched as the ambulance gets closer. Then the sound seems to fade out, get ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.