Stars, Galaxies & Universe
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
... Classifying Stars • Stars are classified by size, temperature, and brightness. • Temperature of a star is indicated by color, hot stars are blue & cooler stars are red. • Apparent brightness is the brightness of a star as observed from earth. • Absolute magnitude is the brightness of a star observe ...
VISIT TO NORMAN LOCKYER OBSERVATORY IN SIDMOUTH
... Between the constellation Bootes and the bright star Vega in Lyra lies the constellation Hercules. The Red Giant star Alpha Herculis or Ras Algethi, its arabic name, is one of the largest stars known, with a diameter of around 500 times that of our Sun. In common with most giant stars it varies its ...
... Between the constellation Bootes and the bright star Vega in Lyra lies the constellation Hercules. The Red Giant star Alpha Herculis or Ras Algethi, its arabic name, is one of the largest stars known, with a diameter of around 500 times that of our Sun. In common with most giant stars it varies its ...
THE LIFE CYCLE OF A STAR
... White dwarfs are the shrunken remains of normal stars, whose nuclear energy supplies have been used up. White dwarfs consist of degenerate matter with a very high density due to gravitational effects, i.e. one spoonful has a mass of several tons. White dwarfs cool and fade over several billion years ...
... White dwarfs are the shrunken remains of normal stars, whose nuclear energy supplies have been used up. White dwarfs consist of degenerate matter with a very high density due to gravitational effects, i.e. one spoonful has a mass of several tons. White dwarfs cool and fade over several billion years ...
EMR, Telescopes, Stars, Solar System study guide `14-15
... 9. The distance that light travels in a year is known as a _________________________. 10. The time it takes light from a star 100 light years away to reach Earth is ___________________. 11. Parallax is used to find the ____________________________ to nearby stars. 12. Astronomers use a _____________ ...
... 9. The distance that light travels in a year is known as a _________________________. 10. The time it takes light from a star 100 light years away to reach Earth is ___________________. 11. Parallax is used to find the ____________________________ to nearby stars. 12. Astronomers use a _____________ ...
galaxy
... Nuclear Fusion hydrogen atoms fuse into helium creating the intense energy found in stars ...
... Nuclear Fusion hydrogen atoms fuse into helium creating the intense energy found in stars ...
PHYSICS 015
... Neutron stars of a few solar masses are already very close to the Schwarzschild radius, so it wouldn’t take much to tip the balance. For the most massive stars, the Schwarzschild radius is already too big. For example, if you wanted to allow a 10-solar-mass star to settle down as a neutron star, abo ...
... Neutron stars of a few solar masses are already very close to the Schwarzschild radius, so it wouldn’t take much to tip the balance. For the most massive stars, the Schwarzschild radius is already too big. For example, if you wanted to allow a 10-solar-mass star to settle down as a neutron star, abo ...
Star project
... • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
... • They are extremely burning hot. • The nearest star to us is the sun. • They are made up of mainly hydrogen and helium, but have a little bit of other elements like oxygen and carbon as well. ...
Quiz Chapter 10 Answers
... Quiz Chapter 10 Answers 10-1. Protostars are not seen in visible light telescopes because: a) they don’t emit any radiation b) they are surrounded by clouds of gas and dust X c) they only emit infrared radiation d) they are all moving away from Earth so fast that their visible light is Doppler shift ...
... Quiz Chapter 10 Answers 10-1. Protostars are not seen in visible light telescopes because: a) they don’t emit any radiation b) they are surrounded by clouds of gas and dust X c) they only emit infrared radiation d) they are all moving away from Earth so fast that their visible light is Doppler shift ...
Nights of the Heavenly G With
... sweeping to Aldebaran in the Bull, and then cutting back down to Orion's belt. You will have learned most of the winter stars, and traced out a giant letter "G" taking up nearly half the starry sky! Taking a closer look, let's begin with the "star of middle age," Capella. Even though various distanc ...
... sweeping to Aldebaran in the Bull, and then cutting back down to Orion's belt. You will have learned most of the winter stars, and traced out a giant letter "G" taking up nearly half the starry sky! Taking a closer look, let's begin with the "star of middle age," Capella. Even though various distanc ...
"Stars" Power Point notes
... • Apparent magnitude is the apparent brightness of a star as measured on Earth. - Apparent magnitude depends on the star’s actual brightness and distance. - The smaller the magnitude number, the brighter the star. (http://spaceweather.com/flybys ) ...
... • Apparent magnitude is the apparent brightness of a star as measured on Earth. - Apparent magnitude depends on the star’s actual brightness and distance. - The smaller the magnitude number, the brighter the star. (http://spaceweather.com/flybys ) ...
Stars and Constellations
... how stars evolve. Lead students to understand the difference between apparent magnitude and absolute magnitude. Showing a flashlight at varying distances is a concrete means of demonstrating the difference. 2) Have students construct simple astrolabes using drinking straws, washers, string and protr ...
... how stars evolve. Lead students to understand the difference between apparent magnitude and absolute magnitude. Showing a flashlight at varying distances is a concrete means of demonstrating the difference. 2) Have students construct simple astrolabes using drinking straws, washers, string and protr ...
Spiral Elliptical Irregular - SMS 8th Grade Astronomy Unit
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
... We are __________________ million miles away from the sun This is called an Astronomical Unit (AU) (it would take a jet 17 years to travel this far!) Pluto is 39 AU from the sun…How many miles is that? _____________________ Anything farther than objects in our solar system has to be measured in ligh ...
The Electromagnetic Spectrum
... • Those waves moving toward an observer are compressed. • They shift toward the blue end of the spectrum. • They larger the shift, the faster that object is moving. ...
... • Those waves moving toward an observer are compressed. • They shift toward the blue end of the spectrum. • They larger the shift, the faster that object is moving. ...
Dark Sky Scotland - Constellation Project
... Only the brightest stars have stand-alone Proper Names such as Polaris, Sirius or Altair (note that many of these Proper Names were given by Arabic astronomers). The more ordinary visible stars are named after the constellation in which they are found. Each star is also named after a letter of the G ...
... Only the brightest stars have stand-alone Proper Names such as Polaris, Sirius or Altair (note that many of these Proper Names were given by Arabic astronomers). The more ordinary visible stars are named after the constellation in which they are found. Each star is also named after a letter of the G ...
File
... HR STAR DIAGRAM OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a ...
... HR STAR DIAGRAM OBJECTIVE: Compare a stars color, temperature, brightness, and size to its spectral class. PURPOSE: Plot stars according to brightness and temperature to create an HR diagram. PROCEDURES: 1. Study the star data table on the back. 2. The sun, used as a standard brightness, is given a ...
FINAL EXAM Name: ASTRONOMY II - 79202 Spring 1995
... to the known value of the sun’s age. Assume 1% efficiency to convert gravitational potential energy to luminosity. ...
... to the known value of the sun’s age. Assume 1% efficiency to convert gravitational potential energy to luminosity. ...
If you wish to a copy of this months Night Sky News
... prominent and brilliant star, Regulus, lying within half a degree of the ecliptic at some 85 light-years distance. In this position it is occulted occasionally by the Moon. It is a blue-white star of spectral type B7, radiating about 130 times as much light as the Sun and seen from Earth at magnitud ...
... prominent and brilliant star, Regulus, lying within half a degree of the ecliptic at some 85 light-years distance. In this position it is occulted occasionally by the Moon. It is a blue-white star of spectral type B7, radiating about 130 times as much light as the Sun and seen from Earth at magnitud ...
temperature - University of Texas Astronomy Home Page
... Much more analogous to luminosity than apparent magnitude: does not vary with distance to the star. It’s a way of stating a star’s luminosity in terms of a magnitude… the magnitude that star would be on the sky if put at a distance of 10pc. ...
... Much more analogous to luminosity than apparent magnitude: does not vary with distance to the star. It’s a way of stating a star’s luminosity in terms of a magnitude… the magnitude that star would be on the sky if put at a distance of 10pc. ...
lecture12
... For historical reasons, astronomers classify the temperatures of stars on a scale defined by spectral types, called O B A F G K M, ranging from the hottest (type O) to the coolest (type M) stars. ...
... For historical reasons, astronomers classify the temperatures of stars on a scale defined by spectral types, called O B A F G K M, ranging from the hottest (type O) to the coolest (type M) stars. ...
LESSON 4, STARS
... red giant, and finally, a white dwarf. A more-massive star: begins as a nebula, becomes a protostar, a main-sequence star, a very massive star, a supergiant, a supernova, and finally, either a neutron star (pulsar) or a black hole. ...
... red giant, and finally, a white dwarf. A more-massive star: begins as a nebula, becomes a protostar, a main-sequence star, a very massive star, a supergiant, a supernova, and finally, either a neutron star (pulsar) or a black hole. ...
Background Information - Eu-Hou
... older stars which have evolved off the main sequence onto the Red Giant Branch (labelled RGB on diagram above). If the main sequence is well defined then this implies that the stars in the cluster are roughly the same age since the more massive stars with longer main sequence lifetimes have not move ...
... older stars which have evolved off the main sequence onto the Red Giant Branch (labelled RGB on diagram above). If the main sequence is well defined then this implies that the stars in the cluster are roughly the same age since the more massive stars with longer main sequence lifetimes have not move ...
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.