Quiz 1: Answers Physics 55: Introduction to
... Circle the letter that best answers each of the following questions. 1. The typical number of stars in a galaxy, the approximate number of galaxies in the observable universe, and the approximate number of neurons in the human brain all have similar values equal to about (a) 106 . (b) 1010 . (c) 102 ...
... Circle the letter that best answers each of the following questions. 1. The typical number of stars in a galaxy, the approximate number of galaxies in the observable universe, and the approximate number of neurons in the human brain all have similar values equal to about (a) 106 . (b) 1010 . (c) 102 ...
Winning Entries in this week’s Galaxy
... • Π, Θ, Z velocities but relative to Local Standard of Rest • LSR is point instantaneously centered on Sun, but moving in a perfectly circular orbit. • Solar motion = motion of sun relative to LSR ...
... • Π, Θ, Z velocities but relative to Local Standard of Rest • LSR is point instantaneously centered on Sun, but moving in a perfectly circular orbit. • Solar motion = motion of sun relative to LSR ...
Review for Astronomy 3 Midterm #2
... Novae occur in systems consisting of a white dwarf with a main sequence/red giant companion. The white dwarf will sometimes “steal matter” from its companion, and eventually will have enough hydrogen on its surface for that hydrogen to begin to fuse to helium. It will do this very quickly and then ...
... Novae occur in systems consisting of a white dwarf with a main sequence/red giant companion. The white dwarf will sometimes “steal matter” from its companion, and eventually will have enough hydrogen on its surface for that hydrogen to begin to fuse to helium. It will do this very quickly and then ...
Light
... The human eye can only see the blend of colors. White light is really composed all the above wavelengths. ...
... The human eye can only see the blend of colors. White light is really composed all the above wavelengths. ...
ISP205-2 Visions of the Universe The Big Questions
... from? “We are stardust.” 4. The universe: What is the universe made of? How old is the universe? The Big Bang. ...
... from? “We are stardust.” 4. The universe: What is the universe made of? How old is the universe? The Big Bang. ...
Emission Spectroscopy Lab
... ion is said to be in an excited state. This excited state configuration is not stable and the electrons return to their normal ground state, releasing energy in the form of electromagnetic radiation (EMR). Some of this EMR may have wavelength that allows us to see the energy as visible light. The co ...
... ion is said to be in an excited state. This excited state configuration is not stable and the electrons return to their normal ground state, releasing energy in the form of electromagnetic radiation (EMR). Some of this EMR may have wavelength that allows us to see the energy as visible light. The co ...
The Sun's Crowded Delivery Room
... isolated ones like the Sun, form in clusters • Meteorite studies can test this idea and give additional information about events leading to formation of the Solar System ...
... isolated ones like the Sun, form in clusters • Meteorite studies can test this idea and give additional information about events leading to formation of the Solar System ...
Linking Asteroids and Meteorites through Reflectance
... • Collapsing due to gravity • The collapse is stopped by electron degeneracy pressure ...
... • Collapsing due to gravity • The collapse is stopped by electron degeneracy pressure ...
2.13 Understanding our Universe
... • Astronomers have also discovered hundreds of stony objects called asteroids, which also orbit the Sun • The Earth’s moon is clearly visible and its appearance changes through the month as it orbits the Earth • With a good telescope you can see that other planets have moons. Jupiter has 63 moons, o ...
... • Astronomers have also discovered hundreds of stony objects called asteroids, which also orbit the Sun • The Earth’s moon is clearly visible and its appearance changes through the month as it orbits the Earth • With a good telescope you can see that other planets have moons. Jupiter has 63 moons, o ...
Stars, Galaxies, and the Universe
... shape and are not symmetrical like spiral or elliptical galaxies. They may be young galaxies that have not yet formed a symmetrical shape, or their irregular shape may be caused by two galaxies colliding. ...
... shape and are not symmetrical like spiral or elliptical galaxies. They may be young galaxies that have not yet formed a symmetrical shape, or their irregular shape may be caused by two galaxies colliding. ...
Monday, April 28
... • measure distances to other galaxies using the periodluminosity relationship for Cepheid variables • Type I supernovae also used to measure distances ...
... • measure distances to other galaxies using the periodluminosity relationship for Cepheid variables • Type I supernovae also used to measure distances ...
N(M)
... prob of spontaneous flip = 1 in few million yrs, (highly forbidden) but there is a lot of H! ...
... prob of spontaneous flip = 1 in few million yrs, (highly forbidden) but there is a lot of H! ...
The Solar System
... The universe contains over 100 billion galaxies. A galaxy is a group of billions of stars. Our own galaxy is called the Milky Way, and it contains about 100 billion stars, including our Sun. The Sun is at the centre of the solar system. ...
... The universe contains over 100 billion galaxies. A galaxy is a group of billions of stars. Our own galaxy is called the Milky Way, and it contains about 100 billion stars, including our Sun. The Sun is at the centre of the solar system. ...
Electromagnetic spectrum - Purdue Physics
... Bang’ - the origin of the universe (Nobel Prize 1978) ...
... Bang’ - the origin of the universe (Nobel Prize 1978) ...
Astron 104 Laboratory #5 Colors of Stars
... 15. Imagine you are out camping, and you take a hot rock (480 K) from the campfire to keep your feet warm in your sleeping bag. When you look for the hot rock in the complete darkness inside your tent, what will you see? Explain, with reference to the thermal spectrum of the rock. ...
... 15. Imagine you are out camping, and you take a hot rock (480 K) from the campfire to keep your feet warm in your sleeping bag. When you look for the hot rock in the complete darkness inside your tent, what will you see? Explain, with reference to the thermal spectrum of the rock. ...
Electromagnetic Spectrum Web Quest
... Use http://www.qrg.northwestern.edu/projects/vss/docs/thermal/3-what-makes-em-radiation.html to answer the following (the general site http://www.qrg.northwestern.edu/projects/vss/docs/Communications/2-more-about-radio-waves.html can also be used on other questions) 15) Why do materials absorb some ...
... Use http://www.qrg.northwestern.edu/projects/vss/docs/thermal/3-what-makes-em-radiation.html to answer the following (the general site http://www.qrg.northwestern.edu/projects/vss/docs/Communications/2-more-about-radio-waves.html can also be used on other questions) 15) Why do materials absorb some ...
File
... Stars can be arranged based on their luminosity (absolute magnitude) and temperature (spectral type) using a Hertzsprung-Russell (H-R) diagram ...
... Stars can be arranged based on their luminosity (absolute magnitude) and temperature (spectral type) using a Hertzsprung-Russell (H-R) diagram ...
Astronomy Objective 1 1. An asteroid is a small, rocky object that
... 11. A meteor is a bright streak of light that results when a meteoroid burns up in Earth’s atmosphere. 12. A meteorite is a meteoroid or any part of a meteoroid that is left when a meteoroid hits the Earth. 13. A meteoroid is a relatively small, rocky body that travels through space. 14. A moon is a ...
... 11. A meteor is a bright streak of light that results when a meteoroid burns up in Earth’s atmosphere. 12. A meteorite is a meteoroid or any part of a meteoroid that is left when a meteoroid hits the Earth. 13. A meteoroid is a relatively small, rocky body that travels through space. 14. A moon is a ...
Lecture082602 - Florida State University
... The Universe is homogeneous – any large volume looks the same as any other large volume at the ...
... The Universe is homogeneous – any large volume looks the same as any other large volume at the ...
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.