The Life Cycle of Stars
... It is red because it is cooler than it was in the main sequence star stage and it is a giant because the outer shell has expanded outward. In the core of the red giant, helium fuses into carbon. All stars evolve the same way up to the red giant phase. The amount of mass a star has determines which l ...
... It is red because it is cooler than it was in the main sequence star stage and it is a giant because the outer shell has expanded outward. In the core of the red giant, helium fuses into carbon. All stars evolve the same way up to the red giant phase. The amount of mass a star has determines which l ...
Characteristics of stars
... • Many stars are about the size of the sun, which is a medium sized star. • White dwarfs are about the size of Earth. • Neutron stars are about 20KM (smallest) • Giant stars and super giant stars. If our sun were a super giant star it would fill our solar system as far out as Jupiter. ...
... • Many stars are about the size of the sun, which is a medium sized star. • White dwarfs are about the size of Earth. • Neutron stars are about 20KM (smallest) • Giant stars and super giant stars. If our sun were a super giant star it would fill our solar system as far out as Jupiter. ...
Constellations, Star Names, and Magnitudes
... International Astronomical Union official, but the IAU has no true legal authority to name stars (or demote planets, for that matter). Companies that sell star names as gifts are a SCAM! ...
... International Astronomical Union official, but the IAU has no true legal authority to name stars (or demote planets, for that matter). Companies that sell star names as gifts are a SCAM! ...
Massive Stars - University of Washington
... Could a Star Have a Maximum Mass? Compared to our Sun, how much mass could a star possibly have? Maximum mass of a star is an estimated ...
... Could a Star Have a Maximum Mass? Compared to our Sun, how much mass could a star possibly have? Maximum mass of a star is an estimated ...
Interstellar clouds
... • The interstellar medium of the milky way consists of clouds containing 90% Hydrogen, 9% Helium, and 1% dust grains. • It has an extremely low density of 1 atom per cm3, about 10 billionth the density of gas created by our best vacuums here on earth. ...
... • The interstellar medium of the milky way consists of clouds containing 90% Hydrogen, 9% Helium, and 1% dust grains. • It has an extremely low density of 1 atom per cm3, about 10 billionth the density of gas created by our best vacuums here on earth. ...
OBAFGKM
... to star’s surface temperature ? • How do we measure brightness of stars: and why apparent vs absolute magnitudes? ...
... to star’s surface temperature ? • How do we measure brightness of stars: and why apparent vs absolute magnitudes? ...
09astrophysics_2007Nov
... •“Spectroscopic Binaries” are so close together you only see one star, but we can see the spectral lines split and converge as the starts orbit. ...
... •“Spectroscopic Binaries” are so close together you only see one star, but we can see the spectral lines split and converge as the starts orbit. ...
Stars and Galaxies
... Finally we come to a stage in the stars life where most of the fuel for fusion is used up 1. the temperature and pressure of the core can no longer support the weight of its ...
... Finally we come to a stage in the stars life where most of the fuel for fusion is used up 1. the temperature and pressure of the core can no longer support the weight of its ...
December 1, 2011 - Perry Local Schools
... Sometimes the labels are a little different: The vertical position represents the star's luminosity. This could be the luminosity in watts. More commonly it is in units of the Sun's luminosity. In either case, a ``ratio scale'' is used. Absolute magnitude is also com ...
... Sometimes the labels are a little different: The vertical position represents the star's luminosity. This could be the luminosity in watts. More commonly it is in units of the Sun's luminosity. In either case, a ``ratio scale'' is used. Absolute magnitude is also com ...
Chapter 29 Notes
... – Apparent magnitude: how bright the star appears from Earth – Absolute magnitude: how bright a star would look if it were 10 parsecs away ...
... – Apparent magnitude: how bright the star appears from Earth – Absolute magnitude: how bright a star would look if it were 10 parsecs away ...
solution
... for visual (the visible range includes visual and spans B V G R) which lets light in the range 551 nm ± 88 nm through. So for a star to be bright at U and V, but dim at B, means that the spectrum has a big dip in it in-between the two bands. This is very unlikely, since stars are blackbody radiators ...
... for visual (the visible range includes visual and spans B V G R) which lets light in the range 551 nm ± 88 nm through. So for a star to be bright at U and V, but dim at B, means that the spectrum has a big dip in it in-between the two bands. This is very unlikely, since stars are blackbody radiators ...
Constellation, Star, and Deep Sky Object
... around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or astronomical units. Metric prefix for AU and parsec, time for light-based. Deep Sky Objects Pulsar – supernova remnant ≈ 20 miles across with mass of 2-3 times our sun and composed completely o ...
... around the sun. 1 parsec = 3.262 light years Distance in astronomy is measured in light years, parsecs, or astronomical units. Metric prefix for AU and parsec, time for light-based. Deep Sky Objects Pulsar – supernova remnant ≈ 20 miles across with mass of 2-3 times our sun and composed completely o ...
Big bang and Stars
... The “bar code” for each element either shifts to the shorter wavelength blue end of the spectrum or to the longer wavelength red end of the spectrum ...
... The “bar code” for each element either shifts to the shorter wavelength blue end of the spectrum or to the longer wavelength red end of the spectrum ...
GO1_Distrubtion Of Matter In Space
... http://www.google.ca/imgres?q=star+life+cycle&hl=en&biw=1152&bih=683&tbm=isch&tbnid=iV0L5uG5BJhmmM:&imgrefurl=http://www.seasky.org/celestialobjects/stars.html&docid=O-VRp6eOvD9w8M&imgurl=http://www.seasky.org/celestialobjects/assets/images/starlife.jpg&w=560&h=287&ei=jsBlUa_zFMGFiALn6IGwDQ&zoom=1&i ...
... http://www.google.ca/imgres?q=star+life+cycle&hl=en&biw=1152&bih=683&tbm=isch&tbnid=iV0L5uG5BJhmmM:&imgrefurl=http://www.seasky.org/celestialobjects/stars.html&docid=O-VRp6eOvD9w8M&imgurl=http://www.seasky.org/celestialobjects/assets/images/starlife.jpg&w=560&h=287&ei=jsBlUa_zFMGFiALn6IGwDQ&zoom=1&i ...
Slide 1
... Magnitude is the degree of brightness of a star. In 1856, British astronomer Norman Pogson proposed a quantitative scale of stellar magnitudes, which was adopted by the astronomical community. Each increment in magnitude corresponds to an increase in the amount of energy by 2.512, approximately. A f ...
... Magnitude is the degree of brightness of a star. In 1856, British astronomer Norman Pogson proposed a quantitative scale of stellar magnitudes, which was adopted by the astronomical community. Each increment in magnitude corresponds to an increase in the amount of energy by 2.512, approximately. A f ...
wk9 (part 1)
... • 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 ...
Constellation
... pressures. An Binary Star is a stellar system consisting of two stars orbiting about a common center of mass and often appearing as a single visual or telescopic object . In this constellation, and every single other constellation it has stars aligned in a shape. ...
... pressures. An Binary Star is a stellar system consisting of two stars orbiting about a common center of mass and often appearing as a single visual or telescopic object . In this constellation, and every single other constellation it has stars aligned in a shape. ...
Stars Power Point
... they’re viewed from Earth • Low numbers are brightest, high are dimmest • Sun = -26.7 • Sirius = -1.45 (Brightest Star) ...
... they’re viewed from Earth • Low numbers are brightest, high are dimmest • Sun = -26.7 • Sirius = -1.45 (Brightest Star) ...
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.