Binary Stars (Professor Powerpoint)
... binaries. Eclipsing Binary stars are also referred to as Extrinsic Variable Stars. ...
... binaries. Eclipsing Binary stars are also referred to as Extrinsic Variable Stars. ...
Quantum Well Electron Gain Structures and Infrared
... • Multiple Wolf-Rayet stars of various types • Two WC9d stars (~10% of the known Galactic population) • SGR is near edge of cluster core (“x”) • Brightest star is Luminous Blue Variable (source of radio nebula) • Projected image size ~3pc on a side (!!) ...
... • Multiple Wolf-Rayet stars of various types • Two WC9d stars (~10% of the known Galactic population) • SGR is near edge of cluster core (“x”) • Brightest star is Luminous Blue Variable (source of radio nebula) • Projected image size ~3pc on a side (!!) ...
June 2016 - Flint River Astronomy Club
... As for the other part of the question: If the red giant’s collapsed core is less than about 2-1/4 solar masses, its gravitational collapse will end when all of its remaining protons and electrons have been crushed into neutrons. The compressed core will be a neutron star about 12 mi. in diameter. Fo ...
... As for the other part of the question: If the red giant’s collapsed core is less than about 2-1/4 solar masses, its gravitational collapse will end when all of its remaining protons and electrons have been crushed into neutrons. The compressed core will be a neutron star about 12 mi. in diameter. Fo ...
SRP_Space_Lesson 5 - Scientist in Residence Program
... A constellation is an identifiable cluster of stars that make a given shape. Constellations are not real, that is to say, the stars do not really form that shape. The first observers of the sky thought that the stars in a constellation when connected resembled a shape that was familiar to them, and ...
... A constellation is an identifiable cluster of stars that make a given shape. Constellations are not real, that is to say, the stars do not really form that shape. The first observers of the sky thought that the stars in a constellation when connected resembled a shape that was familiar to them, and ...
Images from the Las Cumbres Observatory Global Telescope
... The name ‘Cancer’ means ‘the crab’ in Latin. It is the faintest of the 12 zodiac constellations and contains some famous DSOs: the open cluster Praesepe, aka the Beehive Cluster (M44), and the open cluster M67. Cancer does not have any stars brighter than 4th mag. Stars α, δ, and γ Cancri lie close ...
... The name ‘Cancer’ means ‘the crab’ in Latin. It is the faintest of the 12 zodiac constellations and contains some famous DSOs: the open cluster Praesepe, aka the Beehive Cluster (M44), and the open cluster M67. Cancer does not have any stars brighter than 4th mag. Stars α, δ, and γ Cancri lie close ...
Astrophysics by Daniel Yang
... ascertain if they are actually in motion around each other, they may need to be observed for many years. The more massive star orbits in a smaller ellipse around the centre of mass. Eclipsing binary An eclipsing binary is a binary system whose orbital plane is parallel to our observation. Periodical ...
... ascertain if they are actually in motion around each other, they may need to be observed for many years. The more massive star orbits in a smaller ellipse around the centre of mass. Eclipsing binary An eclipsing binary is a binary system whose orbital plane is parallel to our observation. Periodical ...
How Bright is that star?
... Relates luminosity, temperature and Radius of a star. The luminosity/meter² (l), is determined by the temperature (T) of that area ) l = σT⁴ (σ is a constant which if T is in °K, l comes out in Watts) Surface area is determined by radius(R): A = 4πR² So the total Lumnosity of star becomes L = 4πR²σT ...
... Relates luminosity, temperature and Radius of a star. The luminosity/meter² (l), is determined by the temperature (T) of that area ) l = σT⁴ (σ is a constant which if T is in °K, l comes out in Watts) Surface area is determined by radius(R): A = 4πR² So the total Lumnosity of star becomes L = 4πR²σT ...
Today`s Powerpoint
... - Whole star pulsates more and more violently. - Eventually, shells thrown off star altogether! 0.1 - 0.2 MSun ejected. - Shells appear as a nebula around star, called "Planetary Nebula" (awful, historical name, nothing to do with planets). ...
... - Whole star pulsates more and more violently. - Eventually, shells thrown off star altogether! 0.1 - 0.2 MSun ejected. - Shells appear as a nebula around star, called "Planetary Nebula" (awful, historical name, nothing to do with planets). ...
Stars
... • Luminosity - A star produces light – the total amount of energy that a star puts out as light each second is called its Luminosity. • Flux - If we have a light detector (eye, camera, telescope) we can measure the light produced by the star – the total amount of energy intercepted by the detector d ...
... • Luminosity - A star produces light – the total amount of energy that a star puts out as light each second is called its Luminosity. • Flux - If we have a light detector (eye, camera, telescope) we can measure the light produced by the star – the total amount of energy intercepted by the detector d ...
Student Literacy
... You have probably wondered how far away from Earth are the celestial bodies you see in the universe, the space that consists of all matter, all light and all forms of radiation and energy. Stars are so far away that our present mode of space travel would take more than a lifetime to reach the neares ...
... You have probably wondered how far away from Earth are the celestial bodies you see in the universe, the space that consists of all matter, all light and all forms of radiation and energy. Stars are so far away that our present mode of space travel would take more than a lifetime to reach the neares ...
RS Oph
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
... RS Oph is the second brightest member of a rare class of cataclysmic variable star known as recurrent novae (Nr). These stars are novae where more than one outburst has been observed and appear to be intermediate in class between the classical novae (single major outburst) and dwarf novae (frequent ...
STELLAR EVOLUTION
... the next fusion process, until they exhaust all fuel possibilities. The star then ends its existence as a star. A portion of the star’s mass remains as a dead star. The main sequence lifetime of stars depends on the star’s initial mass (the mass contained with the star when it formed). Solar-mass ...
... the next fusion process, until they exhaust all fuel possibilities. The star then ends its existence as a star. A portion of the star’s mass remains as a dead star. The main sequence lifetime of stars depends on the star’s initial mass (the mass contained with the star when it formed). Solar-mass ...
Milky Way
... • Short gamma-ray bursts (< 2 sec): Found in young and old regions. Thought to be two merging neutron stars or a neutron star plus a black hole. ...
... • Short gamma-ray bursts (< 2 sec): Found in young and old regions. Thought to be two merging neutron stars or a neutron star plus a black hole. ...
The Magnitude Scale
... located some 140 miles (200 km) from major cities and some 30 miles (50 km) from nearest town of population 5000 or so ...
... located some 140 miles (200 km) from major cities and some 30 miles (50 km) from nearest town of population 5000 or so ...
Chapter 8 - TeacherWeb
... A star life cycle: first stage: it is a ball of gas and dust. Gravity pulls the dust and gas together into a sphere. As the sphere becomes denser it becomes hotter. Hydrogen changes to helium by a process called nuclear fusion. When a star dies its materials return to space---sometimes to form new s ...
... A star life cycle: first stage: it is a ball of gas and dust. Gravity pulls the dust and gas together into a sphere. As the sphere becomes denser it becomes hotter. Hydrogen changes to helium by a process called nuclear fusion. When a star dies its materials return to space---sometimes to form new s ...
PowerPoint File
... the galactic plane. The distance depends on the type of objects considered, but is roughly 100 – 200 parsecs. The galactic plane is much thinner than it is wide. ...
... the galactic plane. The distance depends on the type of objects considered, but is roughly 100 – 200 parsecs. The galactic plane is much thinner than it is wide. ...
The most important questions to study for the exam
... 6. A star appears to move back and forth with a period of exactly 1 year with respect to a distant galaxy that appears close to it in our sky. What is the most likely cause of this observed motion? • The observed motion is simply the motion of the star around the center of the galaxy. ...
... 6. A star appears to move back and forth with a period of exactly 1 year with respect to a distant galaxy that appears close to it in our sky. What is the most likely cause of this observed motion? • The observed motion is simply the motion of the star around the center of the galaxy. ...
S T A R S
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
... Alpha Centauri is the closest binary to our sun and Proxima Centauri orbits this binary. Omega Centauri (NGC 5139) is globular cluster. The two pointers Apha & Beta Centauri point to Crux. (NGC is the abbreviation for New General Catalogue which is a listing of star clusters, nebulae and galaxies.) ...
supplemental educational materials PDF
... A scientist who studies the universe and the celestial bodies residing in it, including their composition, history, location, and motion. Many of the scientists at the Space Telescope Science Institute are astronomers. Astronomers from all over the world use the Hubble Space Telescope. ...
... A scientist who studies the universe and the celestial bodies residing in it, including their composition, history, location, and motion. Many of the scientists at the Space Telescope Science Institute are astronomers. Astronomers from all over the world use the Hubble Space Telescope. ...
Stellar Spire in the Eagle Nebula
... gas that reside in chaotic neighborhoods, where energy from newborn stars sculpts fantasy-like landscapes in the gas. The tower is a giant incubator for these newborn stars. A torrent of ultraviolet light from a band of massive, hot, young stars [off the top of the image] is eroding the pillar. The ...
... gas that reside in chaotic neighborhoods, where energy from newborn stars sculpts fantasy-like landscapes in the gas. The tower is a giant incubator for these newborn stars. A torrent of ultraviolet light from a band of massive, hot, young stars [off the top of the image] is eroding the pillar. The ...
Corona Australis
Corona Australis /kɵˈroʊnə ɒˈstreɪlɨs/ or Corona Austrina /kɵˈroʊnə ɒˈstraɪnə/ is a constellation in the Southern Celestial Hemisphere. Its Latin name means ""southern crown"", and it is the southern counterpart of Corona Borealis, the northern crown. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The Ancient Greeks saw Corona Australis as a wreath rather than a crown and associated it with Sagittarius or Centaurus. Other cultures have likened the pattern to a turtle, ostrich nest, a tent, or even a hut belonging to a rock hyrax.Although fainter than its namesake, the oval- or horseshoe-shaped pattern of its brighter stars renders it distinctive. Alpha and Beta Coronae Australis are the two brightest stars with an apparent magnitude of around 4.1. Epsilon Coronae Australis is the brightest example of a W Ursae Majoris variable in the southern sky. Lying alongside the Milky Way, Corona Australis contains one of the closest star-forming regions to our Solar System—a dusty dark nebula known as the Corona Australis Molecular Cloud, lying about 430 light years away. Within it are stars at the earliest stages of their lifespan. The variable stars R and TY Coronae Australis light up parts of the nebula, which varies in brightness accordingly.