Exploring the Universe
... – What we see is called the apparent magnitude – Absolute magnitude is a measurement of the brightness as if the distance from the earth was 32.6 light years away. A uniform distance, so it’s the real brightness. – Besides the sun, the brightest star is Sirius ...
... – What we see is called the apparent magnitude – Absolute magnitude is a measurement of the brightness as if the distance from the earth was 32.6 light years away. A uniform distance, so it’s the real brightness. – Besides the sun, the brightest star is Sirius ...
Astronomy 110 Announcements: How are the lives of stars with
... According to conservation of angular momentum, what would happen if a star orbiting in a direction opposite the neutron’s star rotation fell onto a neutron star? A. The neutron star’s rotation would speed up. B. The neutron star’s rotation would slow down. C. Nothing, the directions would cancel eac ...
... According to conservation of angular momentum, what would happen if a star orbiting in a direction opposite the neutron’s star rotation fell onto a neutron star? A. The neutron star’s rotation would speed up. B. The neutron star’s rotation would slow down. C. Nothing, the directions would cancel eac ...
the UKIRT Fundamental and Extended lists
... the ‘UKIRT Faint Standards’, have been very widely used by observers in the NIR on large telescopes. As acknowledged by Casali & Hawarden, the internal precision of their results left something to be desired, especially for the fainter objects. Also, while the majority of the stars have impeccable p ...
... the ‘UKIRT Faint Standards’, have been very widely used by observers in the NIR on large telescopes. As acknowledged by Casali & Hawarden, the internal precision of their results left something to be desired, especially for the fainter objects. Also, while the majority of the stars have impeccable p ...
stars - acpsd
... luminosity and surface temperature place it in sequence on a Hertzsprung- Russell diagram. A fundamental property of all main sequence stars is thermal equilibrium. Thermal equilibrium is the liberation of energy from the interior of the star balanced by the energy released at the surface of the sta ...
... luminosity and surface temperature place it in sequence on a Hertzsprung- Russell diagram. A fundamental property of all main sequence stars is thermal equilibrium. Thermal equilibrium is the liberation of energy from the interior of the star balanced by the energy released at the surface of the sta ...
How Marius Was Right and Galileo Was Wrong Even Though
... while the data indicates that the Earth has a diurnal rotation, that data also indicates that the Earth is not circling the sun. ...
... while the data indicates that the Earth has a diurnal rotation, that data also indicates that the Earth is not circling the sun. ...
Full Poster - Cool Cosmos
... Looking up into the night sky, we have a visible-light view of objects within our galaxy. Optical telescopes show us countless stars and wonderful, detailed images of nebulae. Look within our galaxy in the infrared, however, and we get a completely different view. Areas which appear dark and empty i ...
... Looking up into the night sky, we have a visible-light view of objects within our galaxy. Optical telescopes show us countless stars and wonderful, detailed images of nebulae. Look within our galaxy in the infrared, however, and we get a completely different view. Areas which appear dark and empty i ...
Astronomy Exercises for the Artist: Van Gogh the
... Approximately what direction was van Gogh facing when he painted this scene? Van Gogh was looking toward the east. Because the waning moon is rising, it has to be in the east direction (also see Figure 3). The illuminated part of the crescent moon always “points” toward the Sun. In this case it is t ...
... Approximately what direction was van Gogh facing when he painted this scene? Van Gogh was looking toward the east. Because the waning moon is rising, it has to be in the east direction (also see Figure 3). The illuminated part of the crescent moon always “points” toward the Sun. In this case it is t ...
Astronomy and the Bible
... When dark nebula (mostly dust) collide with emission nebula (florescent regions of gas) images like the Eagle nebula form. The result is whitish areas appearing at the edges of the dark ‘fingers’ of dust. Gases at such temperatures (10,000 K) will quickly disperse. Images taken by the European S ...
... When dark nebula (mostly dust) collide with emission nebula (florescent regions of gas) images like the Eagle nebula form. The result is whitish areas appearing at the edges of the dark ‘fingers’ of dust. Gases at such temperatures (10,000 K) will quickly disperse. Images taken by the European S ...
Stars: Their Life and Afterlife
... a star completely of its outer layers, removing about half of its mass and exposing the hot core. Figure 3 shows two examples of planetary nebulae. The outer layers, illuminated by intense UV light from the core and glowing via fluorescence, form “planetary nebulae.” These nebulae have nothing to do ...
... a star completely of its outer layers, removing about half of its mass and exposing the hot core. Figure 3 shows two examples of planetary nebulae. The outer layers, illuminated by intense UV light from the core and glowing via fluorescence, form “planetary nebulae.” These nebulae have nothing to do ...
CHAPTER 7—ATOMS AND STARLIGHT
... b. Peg c. Leo d. Leo e. Color index is not related to brightness. ____ 10. A(n) _______________ contains two or more atoms that are bound together by sharing electrons with each other. a. nucleus b. ion c. proton d. electron cloud e. molecule ____ 11. In the diagram below, which of the transit ...
... b. Peg c. Leo d. Leo e. Color index is not related to brightness. ____ 10. A(n) _______________ contains two or more atoms that are bound together by sharing electrons with each other. a. nucleus b. ion c. proton d. electron cloud e. molecule ____ 11. In the diagram below, which of the transit ...
www.astro.org.uk www.facebook.com/Stra ordAstro www.twi er.com
... total brightness drops, both when one star passes in front of the other and, by a different amount, when it passes behind. By tracking these changes in brightness very carefully, and also measuring the stars’ orbital speeds, it is possible to work out how big the stars are, their masses and other inf ...
... total brightness drops, both when one star passes in front of the other and, by a different amount, when it passes behind. By tracking these changes in brightness very carefully, and also measuring the stars’ orbital speeds, it is possible to work out how big the stars are, their masses and other inf ...
TAP702-0: Red shift - Teaching Advanced Physics
... central disc, showing both red shifts and blue shifts. These show that one side of this gas disc is approaching us whilst the other side is receding. The disc seems to be rotating at a speed of about 550 km s–1. There is no evidence that the whole galaxy is rotating. ...
... central disc, showing both red shifts and blue shifts. These show that one side of this gas disc is approaching us whilst the other side is receding. The disc seems to be rotating at a speed of about 550 km s–1. There is no evidence that the whole galaxy is rotating. ...
TAP702-0: Red shift - Teaching Advanced Physics
... central disc, showing both red shifts and blue shifts. These show that one side of this gas disc is approaching us whilst the other side is receding. The disc seems to be rotating at a speed of about 550 km s–1. There is no evidence that the whole galaxy is rotating. ...
... central disc, showing both red shifts and blue shifts. These show that one side of this gas disc is approaching us whilst the other side is receding. The disc seems to be rotating at a speed of about 550 km s–1. There is no evidence that the whole galaxy is rotating. ...
night sky a field guide to the heavens
... things were now for the first time, if, I say, they were now suddenly presented to mortals beyond all expectation, what could have been named that would be more marvelous than these things, or that nations beforehand would less venture to believe could be? Nothing, me thinks: so wonderous strange ha ...
... things were now for the first time, if, I say, they were now suddenly presented to mortals beyond all expectation, what could have been named that would be more marvelous than these things, or that nations beforehand would less venture to believe could be? Nothing, me thinks: so wonderous strange ha ...
... 3. THE RR LYRAE STARS IN M15 In Clement’s (2002) data base of variables stars, a total of 158 variable stars are known, from which approximately 104 are RR Lyrae type stars. In this work, 33 known RR Lyrae stars, identified in Figs. 1 and 2 and listed in Table 4, have been studied. For all the stars ...
PARAMOUNT SCHOOL OF EXCELLENCE TIME AND SPACE
... 2. Begin by discussing the vastness of the universe. For example, tell students that light travels at the unimaginably fast speed of 300 million meters per second, and yet light takes years to travel to us from the stars and takes thousands or even millions of years to travel the depths of space bet ...
... 2. Begin by discussing the vastness of the universe. For example, tell students that light travels at the unimaginably fast speed of 300 million meters per second, and yet light takes years to travel to us from the stars and takes thousands or even millions of years to travel the depths of space bet ...
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.