Part B
... Other X-ray sources Lots of energetic interactions of cosmic bodies emit black body radiation peaked in X-rays. e.g. Galactic clusters formed by the merger of individual galaxies (infalling material on collision heated to 108 K). Bullet cluster, the colour representing X-ray emission. ...
... Other X-ray sources Lots of energetic interactions of cosmic bodies emit black body radiation peaked in X-rays. e.g. Galactic clusters formed by the merger of individual galaxies (infalling material on collision heated to 108 K). Bullet cluster, the colour representing X-ray emission. ...
Neutron Stars and Black Holes - School
... Before any evidence of black holes existed they were known to be a theoretical possibility. After a supernova explosion there remains an incredibly dense neutron star. If the mass of the Sun from which it originated was great enough then the neutron star could be a black hole. The gravitational fiel ...
... Before any evidence of black holes existed they were known to be a theoretical possibility. After a supernova explosion there remains an incredibly dense neutron star. If the mass of the Sun from which it originated was great enough then the neutron star could be a black hole. The gravitational fiel ...
Take Something Like a Star
... It gives us strangely little aid, But does tell something in the end. And steadfast as Keats’ Eremite*, Not even stooping from its sphere, It asks a little of us here. It asks of us a certain height, So when at times the mob is swayed To carry praise or blame too far, We may take something like a st ...
... It gives us strangely little aid, But does tell something in the end. And steadfast as Keats’ Eremite*, Not even stooping from its sphere, It asks a little of us here. It asks of us a certain height, So when at times the mob is swayed To carry praise or blame too far, We may take something like a st ...
Death of High Mass Stars
... galaxy (billions of stars) for a few days • Some of the energy creates elements heavier than iron. These elements are distributed to the rest of the galaxy. ...
... galaxy (billions of stars) for a few days • Some of the energy creates elements heavier than iron. These elements are distributed to the rest of the galaxy. ...
Galaxies and Stars
... The bright areas that appear to be stars are actually clusters of stars that can sometimes number in the millions! The arms of this spiral galaxy are filled with the glow of dust and gasses that will become new stars. ...
... The bright areas that appear to be stars are actually clusters of stars that can sometimes number in the millions! The arms of this spiral galaxy are filled with the glow of dust and gasses that will become new stars. ...
Celestial Distances
... Summary (cont’d) For distant stars that are not variable and don’t have a nearby variable star, use the temperature - luminosity relation of the H-R diagram. Does require some work to determine if the star is main sequence, dwarf, or giant. Later we will see the use of red shift and supernovae ...
... Summary (cont’d) For distant stars that are not variable and don’t have a nearby variable star, use the temperature - luminosity relation of the H-R diagram. Does require some work to determine if the star is main sequence, dwarf, or giant. Later we will see the use of red shift and supernovae ...
Astro twopages
... Pluto is the edge of the planets we accept in the solar system. It would take 4.5 hours for light to reach Pluto and twice that time to have a round trip. As we explore the solar system with robots, this time lag has to be taken into account. The next star is approximately 4 light years away. In the ...
... Pluto is the edge of the planets we accept in the solar system. It would take 4.5 hours for light to reach Pluto and twice that time to have a round trip. As we explore the solar system with robots, this time lag has to be taken into account. The next star is approximately 4 light years away. In the ...
Distant Stars - How far away is it
... the stable anchor points by which other stars are classified. [Additional info: The star is actually a triple star system. The primary star (Rigel A) is a blue-white supergiant around 117,000 times as luminous as our sun. Rigel B is itself a binary system.] ...
... the stable anchor points by which other stars are classified. [Additional info: The star is actually a triple star system. The primary star (Rigel A) is a blue-white supergiant around 117,000 times as luminous as our sun. Rigel B is itself a binary system.] ...
MS PowerPoint - National Schools` Observatory
... (2) Each image of Barnard’s Star may be shifted or rotated in comparison to the others. Take care when identifying the three stars that we are interested in. You may then wish to zoom in to get a better accuracy during measurement. ...
... (2) Each image of Barnard’s Star may be shifted or rotated in comparison to the others. Take care when identifying the three stars that we are interested in. You may then wish to zoom in to get a better accuracy during measurement. ...
Sky, Celestial Sphere and Constellations
... Stars do actually move in the sky, but at a very slow rate, not noticeable to eye in a life time or even over a few centuries. However over many thousands of years, there could be obvious changes. ...
... Stars do actually move in the sky, but at a very slow rate, not noticeable to eye in a life time or even over a few centuries. However over many thousands of years, there could be obvious changes. ...
Winter 2014
... see in the night sky. Having exhausted the hydrogen fuel in its core, someday Betelgeuse will explode in a brilliant supernova. Because Betelgeuse is relatively nearby, the glow from this explosion will be visible even in the daytime sky. The star to the right is Bellatrix. While it is only the thir ...
... see in the night sky. Having exhausted the hydrogen fuel in its core, someday Betelgeuse will explode in a brilliant supernova. Because Betelgeuse is relatively nearby, the glow from this explosion will be visible even in the daytime sky. The star to the right is Bellatrix. While it is only the thir ...
1. What is parallax? What unit is it measured in? 1a. Parallax is the
... of how bright they appear in the sky starting with the least bright. 22a. D, C, E, F, A, B. 23. Stars A, B, C, D, E have absolute magnitudes -2, 0, 3, 5, 1 respectively. Put them in order of how bright they appear in the sky starting with the least bright. 23a. Cant do this since we dont know their ...
... of how bright they appear in the sky starting with the least bright. 22a. D, C, E, F, A, B. 23. Stars A, B, C, D, E have absolute magnitudes -2, 0, 3, 5, 1 respectively. Put them in order of how bright they appear in the sky starting with the least bright. 23a. Cant do this since we dont know their ...
H-RDiagramSE
... diagram and become giants or supergiants. Giants and supergiants form when the center of a star collapses and its outer parts expand outwards. What are the characteristics of giants and supergiants? _____________________________ ...
... diagram and become giants or supergiants. Giants and supergiants form when the center of a star collapses and its outer parts expand outwards. What are the characteristics of giants and supergiants? _____________________________ ...
Wazzat Mean - Peterborough Astronomical Association
... Any prominent star pattern that isn’t a whole constellation, such as the Northern Cross or the Big Dipper. Asteroid (Minor Planet) A solid body orbiting the Sun that consists of metal and rock. Most are only a few miles in diameter and are found between the orbits of Mars and Jupiter, too small and ...
... Any prominent star pattern that isn’t a whole constellation, such as the Northern Cross or the Big Dipper. Asteroid (Minor Planet) A solid body orbiting the Sun that consists of metal and rock. Most are only a few miles in diameter and are found between the orbits of Mars and Jupiter, too small and ...
Nebulae
... • They are found near hot, luminous stars of spectral types O and B • They are powered by ultraviolet light that they absorb from nearby hot stars • They are composed of ionized hydrogen atoms; the so called H II region. • They emit light through a ...
... • They are found near hot, luminous stars of spectral types O and B • They are powered by ultraviolet light that they absorb from nearby hot stars • They are composed of ionized hydrogen atoms; the so called H II region. • They emit light through a ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.