Physics@Brock - Brock University
... Contemplating the stars, their enormous distances from us, their enormous sizes (some are so large that they would swallow up the entire orbit of the Earth!), their complex workings, and their interesting life stories, never fails to elicit a cosmic feeling. The universe is vast, and we are but a sm ...
... Contemplating the stars, their enormous distances from us, their enormous sizes (some are so large that they would swallow up the entire orbit of the Earth!), their complex workings, and their interesting life stories, never fails to elicit a cosmic feeling. The universe is vast, and we are but a sm ...
From the Everett and Seattle Astronomical
... in fact, that their orbital periods are often only a few weeks or even a few days. In our solar system, Mercury orbits closest to the Sun, but it still takes 88 days to go around once. Scientists have coined the term “hot Jupiters” to describe these gas giants orbiting so close to their suns. But th ...
... in fact, that their orbital periods are often only a few weeks or even a few days. In our solar system, Mercury orbits closest to the Sun, but it still takes 88 days to go around once. Scientists have coined the term “hot Jupiters” to describe these gas giants orbiting so close to their suns. But th ...
The Hertzsprung-Russell Diagram
... – The full classification of a star includes both a spectral type and a luminosity class: • The Sun is a G2 V • Proxima Centauri is M5 V • Betelgeuse is M2 I • Sirius A: A1 V • Sirius B: DA2 V ...
... – The full classification of a star includes both a spectral type and a luminosity class: • The Sun is a G2 V • Proxima Centauri is M5 V • Betelgeuse is M2 I • Sirius A: A1 V • Sirius B: DA2 V ...
Distances to the Stars in Leo
... The student determines the distances to seven of the brightest stars in the constellation Leo using the method of spectroscopic parallax and compares the results to the more accurate distances derived from measured trigonometric parallaxes. Background and Theory If the distance to the star is known ...
... The student determines the distances to seven of the brightest stars in the constellation Leo using the method of spectroscopic parallax and compares the results to the more accurate distances derived from measured trigonometric parallaxes. Background and Theory If the distance to the star is known ...
lifedeath - University of Glasgow
... Hydrogen fusion – fuelling a star’s nuclear furnace H = Hydrogen He = Helium ...
... Hydrogen fusion – fuelling a star’s nuclear furnace H = Hydrogen He = Helium ...
How Telescopes Changed our Universe
... Big Question 7: Are there other planets? In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
... Big Question 7: Are there other planets? In our own solar system, telescopes found planets our eyes could not see. Are there other planets outside of our solar system? ...
Unit 60 to 79
... Y. What do you conclude from this? a. X is larger cluster than Y b. Y is a larger cluster than X c. X is an older cluster than Y d. Y is an older cluster than X 10) If a white dwarf exceeds its Chandrasekhar limit, it will a. become a nova b. become a type I supernova c. eject a planetary nebula d. ...
... Y. What do you conclude from this? a. X is larger cluster than Y b. Y is a larger cluster than X c. X is an older cluster than Y d. Y is an older cluster than X 10) If a white dwarf exceeds its Chandrasekhar limit, it will a. become a nova b. become a type I supernova c. eject a planetary nebula d. ...
What is a star? A star is a giant ball of gases held together by gravity
... Stars come in a variety of sizes and colors. A few stars are dwarf stars that are smaller than Earth. Other stars are supergiants that are hundreds of times larger than our sun. Our sun is a medium-sized star with a diameter of about 1,400,000 km. or 865,000 miles. It would take over one hundred Ear ...
... Stars come in a variety of sizes and colors. A few stars are dwarf stars that are smaller than Earth. Other stars are supergiants that are hundreds of times larger than our sun. Our sun is a medium-sized star with a diameter of about 1,400,000 km. or 865,000 miles. It would take over one hundred Ear ...
star
... • Very massive stars can explode in a supernova, which destroys the star. • Iron in the core does not fuse and the core collapses quickly under the force of gravity. • The normal space within atoms is eliminated, leaving a dense core of neutrons, or a neutron star. ...
... • Very massive stars can explode in a supernova, which destroys the star. • Iron in the core does not fuse and the core collapses quickly under the force of gravity. • The normal space within atoms is eliminated, leaving a dense core of neutrons, or a neutron star. ...
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 ...
Regents Earth Science – Unit 5: Astronomy
... our sun is an average yellow star the Sun produces energy by the process of nuclear fusion in its core the sun’s outer atmosphere “the corona” can be seen during a total solar eclipse the Sun has sunspots (cooler, dark in color) - spots associated with the its magnetic field these increase and decre ...
... our sun is an average yellow star the Sun produces energy by the process of nuclear fusion in its core the sun’s outer atmosphere “the corona” can be seen during a total solar eclipse the Sun has sunspots (cooler, dark in color) - spots associated with the its magnetic field these increase and decre ...
Astronomy 110 Announcements: 11.1 Properties of Stars
... How would the apparent brightness of Alpha Centauri change if it were three times ...
... How would the apparent brightness of Alpha Centauri change if it were three times ...
February 2008
... bright and it was easy to mark it’s yearly arrival. On January 1st this year, Sirius was right at due South at midnight. Sirius is twice as large as the Sun and has double it’s mass. It produces more than 20 times the light as the Sun. That isn’t really super bright, but since Sirius is only 8.6 lig ...
... bright and it was easy to mark it’s yearly arrival. On January 1st this year, Sirius was right at due South at midnight. Sirius is twice as large as the Sun and has double it’s mass. It produces more than 20 times the light as the Sun. That isn’t really super bright, but since Sirius is only 8.6 lig ...
Passport to the Universe Educator`s Guide Text
... virtual voyage through the three-dimensional universe and come to understand, in a way never before possible, the astronomical meaning of space and scale. Museum scientists have taken data from the Hubble telescope, star catalogs, and observatories, and loaded them into computers. From that data the ...
... virtual voyage through the three-dimensional universe and come to understand, in a way never before possible, the astronomical meaning of space and scale. Museum scientists have taken data from the Hubble telescope, star catalogs, and observatories, and loaded them into computers. From that data the ...
6. 1 Star Distances 6. 2 Apparent Brightness, Intrinsic Brightness
... surface area on stellar luminosity and is commonly plotted as absolute magnitude versus spectral type but also as luminosity versus surface temperature or color. ...
... surface area on stellar luminosity and is commonly plotted as absolute magnitude versus spectral type but also as luminosity versus surface temperature or color. ...
Ursa Major
Ursa Major /ˈɜrsə ˈmeɪdʒər/ (also known as the Great Bear and Charles' Wain) is a constellation in the northern celestial hemisphere. One of the 48 constellations listed by Ptolemy (second century AD), it remains one of the 88 modern constellations. It can be visible throughout the year in most of the northern hemisphere. Its name, Latin for ""the greater (or larger) she-bear"", stands as a reference to and in direct contrast with Ursa Minor, ""the smaller she-bear"", with which it is frequently associated in mythology and amateur astronomy. The constellation's most recognizable asterism, a group of seven relatively bright stars commonly known as the ""Big Dipper"", ""the Wagon"" or ""the Plough"" (among others), both mimicks the shape of the lesser bear (the ""Little Dipper"") and is commonly used as a navigational pointer towards the current northern pole star, Polaris in Ursa Minor. The Big Dipper and the constellation as a whole have mythological significance in numerous world cultures, usually as a symbol of the north.The third largest constellation in the sky, Ursa Major is home to many deep-sky objects including seven Messier objects, four other NGC objects and I Zwicky 18, the youngest known galaxy in the visible universe.