Lecture 17: General Relativity and Black Holes
... 25. The galactic north pole is in what constellation? _______ 1. The Sun is located at the center of the Milky Way Galaxy. True or false 2. Shapley overestimated the dimensions of the Milky Way Galaxy because he failed to account for interstellar extinction by dust. True or false 3. The Herschels at ...
... 25. The galactic north pole is in what constellation? _______ 1. The Sun is located at the center of the Milky Way Galaxy. True or false 2. Shapley overestimated the dimensions of the Milky Way Galaxy because he failed to account for interstellar extinction by dust. True or false 3. The Herschels at ...
White Dwarf star. Are
... So a star has a life similar to a battery that cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. ...
... So a star has a life similar to a battery that cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. ...
How do stars form?
... Oldest Earth rock: 3.98 Ga Acasta Gneiss Oldest Earth minerals: 4.4 Ga Chemistry of the Sun and rate of fusion Age of oldest Moon Rocks: 3.3 - 4.2 Ga Age of Meteorites: 4.5 Ga ...
... Oldest Earth rock: 3.98 Ga Acasta Gneiss Oldest Earth minerals: 4.4 Ga Chemistry of the Sun and rate of fusion Age of oldest Moon Rocks: 3.3 - 4.2 Ga Age of Meteorites: 4.5 Ga ...
A Sense of Scale and The Motions of Earth The guitar player
... recognized by the International Astronomical Union. The names of constellations are in Latin. But most bright star names derived from ancient Arabic. ...
... recognized by the International Astronomical Union. The names of constellations are in Latin. But most bright star names derived from ancient Arabic. ...
Astronomy Quiz 12 “Stars
... B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away is a star that shows 1” (1 arc second) of parallax moti ...
... B. yellow dwarfs / red supergiant D. red dwarfs / blue supergiant _____3. The actual 3D motion of stars relative to each other in a rotating and swirling galaxy is called __ motion. A. radial B. proper C. real D. transverse _____4. How far away is a star that shows 1” (1 arc second) of parallax moti ...
Main Types of Galaxies
... Galaxies are made of stars, planetary systems, gas clouds, and star clusters. Nebulas are giant clouds of gas and dust where Nebula are found stars may be in spiral galaxies but not elliptical forming. galaxies. ...
... Galaxies are made of stars, planetary systems, gas clouds, and star clusters. Nebulas are giant clouds of gas and dust where Nebula are found stars may be in spiral galaxies but not elliptical forming. galaxies. ...
Life2
... Stars form mutual gravitational attraction of original matter from Big Bang into clumps called protostars. Hysdrostatic equilibrium is established where outward radiation pressure balances gravity. A Star is born! Early stars had very little metallicity (i.e. no heavy elements). Stellar evolution - ...
... Stars form mutual gravitational attraction of original matter from Big Bang into clumps called protostars. Hysdrostatic equilibrium is established where outward radiation pressure balances gravity. A Star is born! Early stars had very little metallicity (i.e. no heavy elements). Stellar evolution - ...
Planetarium Key Points
... Constellation shape changes with epoch and their visibility changes with epoch and observer position; shape is not for ever because of star’s proper motion, but no detectable change is observable during human life, at naked eye Constellations and asterisms; we use structures invented by assirian ...
... Constellation shape changes with epoch and their visibility changes with epoch and observer position; shape is not for ever because of star’s proper motion, but no detectable change is observable during human life, at naked eye Constellations and asterisms; we use structures invented by assirian ...
friends of the planetarium newsletter - june 2010
... As our exploration of the Solar System continues, the surprises just keep on coming. In a development that has transformed the appearance of the solar system's largest planet, one of Jupiter's two main cloud belts has completely disappeared. "This is a big event," says planetary scientist Glenn Ort ...
... As our exploration of the Solar System continues, the surprises just keep on coming. In a development that has transformed the appearance of the solar system's largest planet, one of Jupiter's two main cloud belts has completely disappeared. "This is a big event," says planetary scientist Glenn Ort ...
answers - Salem State University
... 1. The parallax angle would be larger and easier to observe, because the known side of the right triangle (in the parallax determination) would be larger. 2. The giants are above the radii of the main sequence stars. 3. The higher temperature produces great luminosity as seen in the H-R Diagram. 4. ...
... 1. The parallax angle would be larger and easier to observe, because the known side of the right triangle (in the parallax determination) would be larger. 2. The giants are above the radii of the main sequence stars. 3. The higher temperature produces great luminosity as seen in the H-R Diagram. 4. ...
Mapping the Stars
... It appears to move across the sky due to the Earth’s rotation. Do the stars appear to move at night also? Yes All the stars we see at night appear to rotate around which star? Polaris which is the North Star Where is Polaris located? Directly above the Earth’s North Pole. Stars are actually moving i ...
... It appears to move across the sky due to the Earth’s rotation. Do the stars appear to move at night also? Yes All the stars we see at night appear to rotate around which star? Polaris which is the North Star Where is Polaris located? Directly above the Earth’s North Pole. Stars are actually moving i ...
Chapter 13 Notes – The Deaths of Stars
... Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae Final stages of fusion in high-mass stars ( ___________ solar mass ...
... Expands to ______________ radius Earth will then be ___________________ Sun MAY form a ________________ nebula (but uncertain) Sun’s C, O core will become a ______________ dwarf VIII. The Deaths of Massive Stars: Supernovae Final stages of fusion in high-mass stars ( ___________ solar mass ...
Name: Period : ______ The Universe – Life and Death of a Star How
... 32. Even more small and dense than a white dwarf is a _______________________ ____. 33. How much would one teaspoon of this object weigh? 34. When we see the beam of the neutron star “lighthouse” it is called a _____________________. 35. An object even denser than a neutron star is called a ________ ...
... 32. Even more small and dense than a white dwarf is a _______________________ ____. 33. How much would one teaspoon of this object weigh? 34. When we see the beam of the neutron star “lighthouse” it is called a _____________________. 35. An object even denser than a neutron star is called a ________ ...
wk09noQ
... • The Zero Age Main Sequence (ZAMS) represents the onset or start of nuclear burning (fusion) • The properties of a star on the ZAMS are primarily determined by its mass, somewhat dependent on chemical composition (fraction of He and heavier elements) • The classification of stars in an HR diagram b ...
... • The Zero Age Main Sequence (ZAMS) represents the onset or start of nuclear burning (fusion) • The properties of a star on the ZAMS are primarily determined by its mass, somewhat dependent on chemical composition (fraction of He and heavier elements) • The classification of stars in an HR diagram b ...
Diapositiva 1
... nebulae have long been appreciated as a final phase in the life of a sunlike star. Only much more recently however, have some planetaries been found to have halos like this one, likely formed of material shrugged off during earlier active episodes in the star's evolution. While the planetary nebula ...
... nebulae have long been appreciated as a final phase in the life of a sunlike star. Only much more recently however, have some planetaries been found to have halos like this one, likely formed of material shrugged off during earlier active episodes in the star's evolution. While the planetary nebula ...
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.