the galaxy in which we live - Cosmos
... gravitationally bound forming a much larger structure: our Milky Way Galaxy. There are huge numbers of galaxies apart from our own, constituting the basic structural units of the Universe. ...
... gravitationally bound forming a much larger structure: our Milky Way Galaxy. There are huge numbers of galaxies apart from our own, constituting the basic structural units of the Universe. ...
etlife_exoplanets - University of Glasgow
... star. That makes them very hard to see directly with current telescopes (~10m mirrors)… Keck telescopes on Mauna Kea, Hawaii ...
... star. That makes them very hard to see directly with current telescopes (~10m mirrors)… Keck telescopes on Mauna Kea, Hawaii ...
File
... million K, the surface would be liquid form, while if it's cooler than that, it would be solid. Below that is a solid crust, about a kilometer thick. This crust is very hard and very smooth. Gravity would probably prevent any irregularities larger than half a centimeter. ...
... million K, the surface would be liquid form, while if it's cooler than that, it would be solid. Below that is a solid crust, about a kilometer thick. This crust is very hard and very smooth. Gravity would probably prevent any irregularities larger than half a centimeter. ...
The Evolution of Low Mass Stars
... In other words, stars with masses <8 M end their lives as white dwarfs. So the Sun will one day become a white dwarf. ...
... In other words, stars with masses <8 M end their lives as white dwarfs. So the Sun will one day become a white dwarf. ...
The Milky Way Galaxy
... •Contain large numbers of stars in a very small volume: 20,000-1,000,000 stars in a volume 20 pc in diameter •very round and symmetrical in shape - very old -among the first stellar complexes formed in the galaxy ...
... •Contain large numbers of stars in a very small volume: 20,000-1,000,000 stars in a volume 20 pc in diameter •very round and symmetrical in shape - very old -among the first stellar complexes formed in the galaxy ...
Link again
... Reflection nebulae are associated with the gas and dust surrounding young stars such as the Pleiades. Emission nebulae glow. Dark and absorption nebulae are dark and absorb light. The reddish cloud of gas in the Horsehead Nebulae in Orion is emission nebulae. The horsehead is an absorption nebula. T ...
... Reflection nebulae are associated with the gas and dust surrounding young stars such as the Pleiades. Emission nebulae glow. Dark and absorption nebulae are dark and absorb light. The reddish cloud of gas in the Horsehead Nebulae in Orion is emission nebulae. The horsehead is an absorption nebula. T ...
Lecture notes -- pdf file - University of Iowa Astrophysics
... • Defined two units to be used in describing stellar distances (parsec and light year) ...
... • Defined two units to be used in describing stellar distances (parsec and light year) ...
Night Sky
... Constellations were originally a game of “connect the dots” of humans finding patterns in the sky The constellations named within Western culture originated in Mesopotamia, Babylon, Egypt, and Greece beginning as much as 5,000 years ago. Colloquially, groups of stars that appear to form patterns in ...
... Constellations were originally a game of “connect the dots” of humans finding patterns in the sky The constellations named within Western culture originated in Mesopotamia, Babylon, Egypt, and Greece beginning as much as 5,000 years ago. Colloquially, groups of stars that appear to form patterns in ...
Astronomy
... Reflection nebulae are associated with the gas and dust surrounding young stars such as the Pleiades. Emission nebulae glow. Dark and absorption nebulae are dark and absorb light. The reddish cloud of gas in the Horsehead Nebulae in Orion is emission nebulae. The horsehead is an absorption nebula. T ...
... Reflection nebulae are associated with the gas and dust surrounding young stars such as the Pleiades. Emission nebulae glow. Dark and absorption nebulae are dark and absorb light. The reddish cloud of gas in the Horsehead Nebulae in Orion is emission nebulae. The horsehead is an absorption nebula. T ...
Parallax, Event Horizon, HR diagrams equation
... Physics : distance to the stars and counting the stars "1 Light Year is the distance traveled by light in one year." 1 light year (ly) is equivalent to: 63,270 AU Closer stars could appear larger. More distant stars could be very large, but seem small. How can we tell which stars are farther away? ...
... Physics : distance to the stars and counting the stars "1 Light Year is the distance traveled by light in one year." 1 light year (ly) is equivalent to: 63,270 AU Closer stars could appear larger. More distant stars could be very large, but seem small. How can we tell which stars are farther away? ...
Stellar Evolution Test Answers
... 1. When the light from a distant galaxy is distorted by a black hole, the resulting image is a ring. We call this a) the photon sphere b) the event horizon c) gravitational lensing d) the cosmological principle 2. Once you cross the ____________________, there is no going back…light can no longer es ...
... 1. When the light from a distant galaxy is distorted by a black hole, the resulting image is a ring. We call this a) the photon sphere b) the event horizon c) gravitational lensing d) the cosmological principle 2. Once you cross the ____________________, there is no going back…light can no longer es ...
The Sizes of Stars
... faster than material further away. If there’s a lot of material in a disk, this will cause the atoms will rub up against each other. There will be friction! So The material will lose orbital energy and spiral in The disk will get real hot. The faster the gas moves, the greater the friction, and ...
... faster than material further away. If there’s a lot of material in a disk, this will cause the atoms will rub up against each other. There will be friction! So The material will lose orbital energy and spiral in The disk will get real hot. The faster the gas moves, the greater the friction, and ...
Fixed Stars - Mark Dodich
... Z: Vega - Also called Wega at 15° Capricorn in the constellation Lyra, the harp. It was the pole star around 12,00010,000 BCE. It may have been the Egyptian goddess Maat. She helped souls move from one life to another by checking to see that their soul weight was no more than that of a feather befor ...
... Z: Vega - Also called Wega at 15° Capricorn in the constellation Lyra, the harp. It was the pole star around 12,00010,000 BCE. It may have been the Egyptian goddess Maat. She helped souls move from one life to another by checking to see that their soul weight was no more than that of a feather befor ...
Lab 9
... How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
... How accurate were you? Is the criterion or criteria you used a good way to find galaxy distances? ...
SASS_Talk_4_16_08
... 1) You accidentally black out at a party and wake up in a field somewhere*. You want to know where you are**, what time it is***, and figure out which way east is 2) You hear there is a comet that just became very bright in the sky and you want to know what the best time of night to view it is *I do ...
... 1) You accidentally black out at a party and wake up in a field somewhere*. You want to know where you are**, what time it is***, and figure out which way east is 2) You hear there is a comet that just became very bright in the sky and you want to know what the best time of night to view it is *I do ...
(Mike Riddle CTI)-84_eng_cr_v4.0
... The popular theory is that stars form from vast clouds of gas and dust through gravitational contraction. ...
... The popular theory is that stars form from vast clouds of gas and dust through gravitational contraction. ...
MilkyWay
... •Tried to estimate scattering due to ISM gas but determined it to be insignificant (most obscuration is due to dust absorption which has a smaller wavelength dependence) •Shapley (1919) observed that globular clusters are distributed asymmetrically in the sky and that if one assumes they are distrib ...
... •Tried to estimate scattering due to ISM gas but determined it to be insignificant (most obscuration is due to dust absorption which has a smaller wavelength dependence) •Shapley (1919) observed that globular clusters are distributed asymmetrically in the sky and that if one assumes they are distrib ...
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.