AST101_lect_12
... • O: Hottest stars; temps from ~20,000K to > 100,000K. Weak helium absorption. • B: Temperatures from 10,000 to 20,000K. Noticeably blue. Examples: Rigel, in Orion, and Spica, in Virgo. • A: Temperatures from 8000-10,000K. They appear white. Strong absorption lines of hydrogen. Examples: Vega, Altai ...
... • O: Hottest stars; temps from ~20,000K to > 100,000K. Weak helium absorption. • B: Temperatures from 10,000 to 20,000K. Noticeably blue. Examples: Rigel, in Orion, and Spica, in Virgo. • A: Temperatures from 8000-10,000K. They appear white. Strong absorption lines of hydrogen. Examples: Vega, Altai ...
Measuring the ligth
... comet, we can distinguish and specify the incoming light from different areas of the object, we define then, the intensity, <>, as the radiated energy per second by a region of the object that we can see under a solid angle of one square second. If we add the light coming from all the areas of th ...
... comet, we can distinguish and specify the incoming light from different areas of the object, we define then, the intensity, <>, as the radiated energy per second by a region of the object that we can see under a solid angle of one square second. If we add the light coming from all the areas of th ...
AST121 Introduction to Astronomy
... • We must consider how we are viewing the binary stars (top view, side view, at an angle?) • How can we analyze the orbit? ...
... • We must consider how we are viewing the binary stars (top view, side view, at an angle?) • How can we analyze the orbit? ...
File - Science with Mrs. Schmidt
... _____ 10. A continuous spectrum is a spectrum that shows a. some of the colors. b. some of the colors and some black lines. c. all the colors. d. all the colors and some black lines. _____ 11. What instrument breaks a star’s light into a spectrum? a. a continuous spectrum b. a telescope c. a spectro ...
... _____ 10. A continuous spectrum is a spectrum that shows a. some of the colors. b. some of the colors and some black lines. c. all the colors. d. all the colors and some black lines. _____ 11. What instrument breaks a star’s light into a spectrum? a. a continuous spectrum b. a telescope c. a spectro ...
Part 1
... Procyon (parallax angle = 0.29”) Ross 780 (parallax angle = 0.21”) Regulus (parallax angle = 0.04”) Sirius (parallax angle = 0.38”) ...
... Procyon (parallax angle = 0.29”) Ross 780 (parallax angle = 0.21”) Regulus (parallax angle = 0.04”) Sirius (parallax angle = 0.38”) ...
122final10
... There is no evidence of their existence They only form when two stars collide with one another none of the above are characteristics. ...
... There is no evidence of their existence They only form when two stars collide with one another none of the above are characteristics. ...
A Unique Environmental Studies Program
... Another star in the same constellation, Proxima Centauri, is actually our closest star, at 4.2 light years from earth, but it is only visible through a telescope. The Coal Sack. Close to the Southern Cross you may see a very dark patch called the "Coal Sack". This is a cloud of very dark dust or gas ...
... Another star in the same constellation, Proxima Centauri, is actually our closest star, at 4.2 light years from earth, but it is only visible through a telescope. The Coal Sack. Close to the Southern Cross you may see a very dark patch called the "Coal Sack". This is a cloud of very dark dust or gas ...
Planets In The Night Sky
... Planets brightness varies and they shine with a more steady light then the stars . Plants do not produce any light of their own. Stars are so distant they appear to twinkle Stars generate their own light. ...
... Planets brightness varies and they shine with a more steady light then the stars . Plants do not produce any light of their own. Stars are so distant they appear to twinkle Stars generate their own light. ...
Astronomy Unit Period
... __________ 34. Which of the following statements is NOT true of supernovas? a. They are explosions in which a massive star collapses. b. They are explosions that occur at the beginning of a star’s life. c. They can be brighter than an entire galaxy for several days. d. They are explosions in which a ...
... __________ 34. Which of the following statements is NOT true of supernovas? a. They are explosions in which a massive star collapses. b. They are explosions that occur at the beginning of a star’s life. c. They can be brighter than an entire galaxy for several days. d. They are explosions in which a ...
Star Powerpoint notes
... Stars range from more than 1000 times the Sun’s diameter to less than 1/100 the Sun’s diameter. Are most stars isolated from other stars, as the Sun is? No. In the vicinity of the Sun, two-thirds of the stars are found in pairs or larger groups. ...
... Stars range from more than 1000 times the Sun’s diameter to less than 1/100 the Sun’s diameter. Are most stars isolated from other stars, as the Sun is? No. In the vicinity of the Sun, two-thirds of the stars are found in pairs or larger groups. ...
The Universe
... light can be planets, moons, comets, stars, but also complete star systems (galaxies). Our Solar system is part of a galaxy called the Milky Way. All the (individual) stars we can see on Earth all also part of the Milky Way. Previously we stated that our Solar system ends at the Oort cloud. The dist ...
... light can be planets, moons, comets, stars, but also complete star systems (galaxies). Our Solar system is part of a galaxy called the Milky Way. All the (individual) stars we can see on Earth all also part of the Milky Way. Previously we stated that our Solar system ends at the Oort cloud. The dist ...
Papervision3D star (sun) tutorial and source - 02
... The star’s gradient Actually, it took quite some tweaking to get a nice gradient of white in the middle and yellow to red on the edge. It’s a basic Sprite gradient fill, using three colors, alpha layering and a specific color ratio array to get the last two colors (yellow and red) on the edge. Then ...
... The star’s gradient Actually, it took quite some tweaking to get a nice gradient of white in the middle and yellow to red on the edge. It’s a basic Sprite gradient fill, using three colors, alpha layering and a specific color ratio array to get the last two colors (yellow and red) on the edge. Then ...
Stars Notes
... Characteristics used to classify stars include color, temperature, size, composition and brightness Color – red, red-orange, yellow, white, blue Temperature – ranges from 3,000 to 50,000 Size – super giant, giant, medium, dwarf, neutron Composition – what makes up the star (elements) Brightn ...
... Characteristics used to classify stars include color, temperature, size, composition and brightness Color – red, red-orange, yellow, white, blue Temperature – ranges from 3,000 to 50,000 Size – super giant, giant, medium, dwarf, neutron Composition – what makes up the star (elements) Brightn ...
Solutions
... with a 3.97 day period and an apparent visual magnitude of +1.99. Assuming that population II cepheids are 1.5 magnitudes fainter than population I cepheids, find the distance to Polaris. ...
... with a 3.97 day period and an apparent visual magnitude of +1.99. Assuming that population II cepheids are 1.5 magnitudes fainter than population I cepheids, find the distance to Polaris. ...
astronomy - Scioly.org
... 44. During a Type Ia supernova explosion, a white dwarf star explodes when it pulls too much material from a companion star onto itself. When the white dwarf’s mass exceeds ______ times the Sun’s mass, the white dwarf becomes unstable and explodes. 45. Star A is twice as far away as Star B. The par ...
... 44. During a Type Ia supernova explosion, a white dwarf star explodes when it pulls too much material from a companion star onto itself. When the white dwarf’s mass exceeds ______ times the Sun’s mass, the white dwarf becomes unstable and explodes. 45. Star A is twice as far away as Star B. The par ...
Sample Midterm - IUPUI Physics
... 13. If you plot a very large number of random stars on a HR Diagram measuring their apparent magnitude vs. their B-V magnitude what will you get? a) A nice neat plot with a clear main sequence and clear red giant branch b) A nice neat plot with a clear main sequence but a few red giant branches c) ...
... 13. If you plot a very large number of random stars on a HR Diagram measuring their apparent magnitude vs. their B-V magnitude what will you get? a) A nice neat plot with a clear main sequence and clear red giant branch b) A nice neat plot with a clear main sequence but a few red giant branches c) ...
Normal Stars - Chandra X
... Similar explosive conditions can also be found in young stars. They have turbulent interiors because nuclear reactions have only recently begun and the star has yet to settle down to accommodate the flow of energy from the interior. They also rotate rapidly— over the years they will slow down due to ...
... Similar explosive conditions can also be found in young stars. They have turbulent interiors because nuclear reactions have only recently begun and the star has yet to settle down to accommodate the flow of energy from the interior. They also rotate rapidly— over the years they will slow down due to ...
Fundamental Motions (PowerPoint)
... Northern horizon – tells you your latitude. If strong ocean currents carry your ship North, Polaris will gradually get higher from night to night, and you can correct your course accordingly; if Polaris gradually gets lower, you are drifting South. This sort of simple consideration allowed Columbus ...
... Northern horizon – tells you your latitude. If strong ocean currents carry your ship North, Polaris will gradually get higher from night to night, and you can correct your course accordingly; if Polaris gradually gets lower, you are drifting South. This sort of simple consideration allowed Columbus ...
Star and Galaxies
... • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
... • Stars with masses similar to the sun evolve in essentially the same way as low-mass stars. • During their collapse from red giants to white dwarfs, medium-mass stars are thought to cast off their bloated outer layer, creating an expanding round cloud of gas called planetary nebula. ...
Earth in space
... spectral analysis of their light This information is organized on a chart called a Hertzsprung-Russell diagram See ESRT page 15 ...
... spectral analysis of their light This information is organized on a chart called a Hertzsprung-Russell diagram See ESRT page 15 ...
Dim Stars - granthamkuehl
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
... In our study of Stars The students will be able to Determine color, temp., brightness and Size of a star And show what they learned by Interpreting the HR Diagram ...
Stars Chapter 21
... light from a distant star into its characteristic color • SPECTRUM: the band of colors that forms as light passes through a prism • Used to see if galaxies are moving away or toward the earth ...
... light from a distant star into its characteristic color • SPECTRUM: the band of colors that forms as light passes through a prism • Used to see if galaxies are moving away or toward the earth ...
Corona Australis
Corona Australis /kɵˈroʊnə ɒˈstreɪlɨs/ or Corona Austrina /kɵˈroʊnə ɒˈstraɪnə/ is a constellation in the Southern Celestial Hemisphere. Its Latin name means ""southern crown"", and it is the southern counterpart of Corona Borealis, the northern crown. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The Ancient Greeks saw Corona Australis as a wreath rather than a crown and associated it with Sagittarius or Centaurus. Other cultures have likened the pattern to a turtle, ostrich nest, a tent, or even a hut belonging to a rock hyrax.Although fainter than its namesake, the oval- or horseshoe-shaped pattern of its brighter stars renders it distinctive. Alpha and Beta Coronae Australis are the two brightest stars with an apparent magnitude of around 4.1. Epsilon Coronae Australis is the brightest example of a W Ursae Majoris variable in the southern sky. Lying alongside the Milky Way, Corona Australis contains one of the closest star-forming regions to our Solar System—a dusty dark nebula known as the Corona Australis Molecular Cloud, lying about 430 light years away. Within it are stars at the earliest stages of their lifespan. The variable stars R and TY Coronae Australis light up parts of the nebula, which varies in brightness accordingly.