Stars Student Page Purpose To investigate stellar classification by
... 1. By clicking on the diagram, it is possible to locate the position on the graph where a star will have one solar luminosity and one solar radii. This will yield a surface temperature of approximately 5700 K. 2. The Sun’s location is significant because it lies on the long path that runs from the u ...
... 1. By clicking on the diagram, it is possible to locate the position on the graph where a star will have one solar luminosity and one solar radii. This will yield a surface temperature of approximately 5700 K. 2. The Sun’s location is significant because it lies on the long path that runs from the u ...
Yeatman-Liddell College Preparatory Middle School Winter
... Unlike our Sun, giant stars contract or draw in upon themselves. They begin to absorb energy instead ...
... Unlike our Sun, giant stars contract or draw in upon themselves. They begin to absorb energy instead ...
Today`s Class: Measuring temperatures of stars Astronomer`s
... a) Cooler than our Sun. b) Hotter than our Sun. c) Larger than our Sun. d) More luminous than our Sun. ...
... a) Cooler than our Sun. b) Hotter than our Sun. c) Larger than our Sun. d) More luminous than our Sun. ...
Name Physics 130 Astronomy Exam 2 August 2, 2004 Multiple Choice
... 20. _____ Suppose that two identical stars (having the same total light output) are located such that star A is at a distance of 5 pc and star B is at a distance of 25 pc. How will star B appear, compared to star A? a.) Star B will be ½.2 as bright as star A. b.) Star B will be 1/20 as bright as st ...
... 20. _____ Suppose that two identical stars (having the same total light output) are located such that star A is at a distance of 5 pc and star B is at a distance of 25 pc. How will star B appear, compared to star A? a.) Star B will be ½.2 as bright as star A. b.) Star B will be 1/20 as bright as st ...
Stars - Mrs. Tosh`s class
... The entire sky is lit up for weeks. The temperature can be more than 100 billion degrees. The iron atoms fuse into uranium. ...
... The entire sky is lit up for weeks. The temperature can be more than 100 billion degrees. The iron atoms fuse into uranium. ...
Phys133 SAMPLE questions for MidTerm#1
... 18) Suppose the Sun were to suddenly shrink in size but its mass remained the same. According to the law of conservation of angular momentum, what would happen? A) The Sun's rate of rotation would slow. B) This could never happen, because it is impossible for an object to shrink in size without an ...
... 18) Suppose the Sun were to suddenly shrink in size but its mass remained the same. According to the law of conservation of angular momentum, what would happen? A) The Sun's rate of rotation would slow. B) This could never happen, because it is impossible for an object to shrink in size without an ...
Astronomy Teaching that Focuses on Learning Subtitled
... The Big Bang organized pre-existing matter All bright stars must be very hot The solar system contains millions of stars A comet is a tiny galaxy ...
... The Big Bang organized pre-existing matter All bright stars must be very hot The solar system contains millions of stars A comet is a tiny galaxy ...
Document
... Pluto first discovered in 1930 by Clyde W. Tombaugh A full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. Pluto has been demoted to be a “Dwar ...
... Pluto first discovered in 1930 by Clyde W. Tombaugh A full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity. In addition, a planet has to dominate the neighborhood around its orbit. Pluto has been demoted to be a “Dwar ...
Luminosities and magnitudes of stars
... Brightness and the magnitude scale Magnitude scale later standardized so that mag. = 1 is exactly 100 x brighter than mag. = 6 Difference of 5 mag = factor 100 in brightness Difference of 1 mag = factor 2.512 in brightness i.e. ...
... Brightness and the magnitude scale Magnitude scale later standardized so that mag. = 1 is exactly 100 x brighter than mag. = 6 Difference of 5 mag = factor 100 in brightness Difference of 1 mag = factor 2.512 in brightness i.e. ...
Nova
... which erupted Feb. 19, 1992. A nova is a thermonuclear explosion that occurs on the surface of a white dwarf star in a doublestar system. The image [right], taken after Hubble's near-sightedness had been corrected, reveals an elliptical and slightly lumpy ring-like structure. The ring is the edge of ...
... which erupted Feb. 19, 1992. A nova is a thermonuclear explosion that occurs on the surface of a white dwarf star in a doublestar system. The image [right], taken after Hubble's near-sightedness had been corrected, reveals an elliptical and slightly lumpy ring-like structure. The ring is the edge of ...
PDF
... size to our own planet (about 60% larger than Earth), orbiting around a star similar to our Sun (Kepler 452 is a G2V-type star) at about the same distance between Earth and Sun, within the habitable zone of this star. From these, other similarities extend: this exoplanet takes 385 Earth days to orbi ...
... size to our own planet (about 60% larger than Earth), orbiting around a star similar to our Sun (Kepler 452 is a G2V-type star) at about the same distance between Earth and Sun, within the habitable zone of this star. From these, other similarities extend: this exoplanet takes 385 Earth days to orbi ...
Stars
... which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a light house, they shine across a great distance. Even though blue giant stars are rare, they make up many of the stars we see at night. Blue giant stars die ...
... which gives them a very high temperature. These stars often run out of fuel in only 10,000 - 100,000 years. A blue giant is very bright. Like a light house, they shine across a great distance. Even though blue giant stars are rare, they make up many of the stars we see at night. Blue giant stars die ...
A stars
... Around Epsilon Indi (Spectral type K5: about one-tenth the Sun's luminosity), an Earth-sized planet would have to orbit at about the distance of Mercury from the star. ...
... Around Epsilon Indi (Spectral type K5: about one-tenth the Sun's luminosity), an Earth-sized planet would have to orbit at about the distance of Mercury from the star. ...
Star Types - University of Massachusetts Amherst
... Parallax would be easier to measure if 1) the stars were further away. 2) Earth's orbit were larger. 3) Earth moved backwards along its orbit. 4) none of these. ...
... Parallax would be easier to measure if 1) the stars were further away. 2) Earth's orbit were larger. 3) Earth moved backwards along its orbit. 4) none of these. ...
Pistol Star - University of Dayton
... •Made from granules caused by convection currents that carry energy to the surface •These dark spots are the cooler areas of descending gas, which may be small and last a few days, or they can be 150,000km and last for months •Sunspots are 1000 degrees cooler than surrounding area and put off half ...
... •Made from granules caused by convection currents that carry energy to the surface •These dark spots are the cooler areas of descending gas, which may be small and last a few days, or they can be 150,000km and last for months •Sunspots are 1000 degrees cooler than surrounding area and put off half ...
Slide 1
... variable. They are called Cepheid variables. Cepheid variable stars have a well established periodluminosity relation. This provides a powerful means for determining cosmic distances. Note: there are many other types of variable stars, so be careful when studying Cepheids. ...
... variable. They are called Cepheid variables. Cepheid variable stars have a well established periodluminosity relation. This provides a powerful means for determining cosmic distances. Note: there are many other types of variable stars, so be careful when studying Cepheids. ...
Cygnus (constellation)
Cygnus /ˈsɪɡnəs/ is a northern constellation lying on the plane of the Milky Way, deriving its name from the Latinized Greek word for swan. The swan is one of the most recognizable constellations of the northern summer and autumn, it features a prominent asterism known as the Northern Cross (in contrast to the Southern Cross). Cygnus was among the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations.Cygnus contains Deneb, one of the brightest stars in the night sky and one corner of the Summer Triangle, as well as some notable X-ray sources and the giant stellar association of Cygnus OB2. One of the stars of this association, NML Cygni, is one of the largest stars currently known. The constellation is also home to Cygnus X-1, a distant X-ray binary containing a supergiant and unseen massive companion that was the first object widely held to be a black hole. Many star systems in Cygnus have known planets as a result of the Kepler Mission observing one patch of the sky, the patch is the area around Cygnus. In addition, most of the eastern part of Cygnus is dominated by the Hercules–Corona Borealis Great Wall, a giant galaxy filament that is the largest known structure in the observable universe; covering most of the northern sky.