Warm-Up Monday, July 23, 2012
... • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just closer to us. • E. The stars in Orion are all the same dis ...
... • B. The stars in Orion orbit the Sun, just like the planets. • C. The brightest stars in Orion are the ones that are closest to us. • D. You can’t tell if the brightest stars in Orion are really brighter than the others, or if they are just closer to us. • E. The stars in Orion are all the same dis ...
Unit 1
... • Rotation of the cloud forces it into a disk-shape • After a million years or so, the center of the disk develops a hot, dense core called a protostar ...
... • Rotation of the cloud forces it into a disk-shape • After a million years or so, the center of the disk develops a hot, dense core called a protostar ...
PPT 15MB - HubbleSOURCE
... Amazing network of long, straight filaments seen in great detail for first time in ionized gas; some of them follow magnetic field lines; New compact nebulae discovered with young massive stars, ranging from early to late stages of star formation Many candidate massive stars identified by brig ...
... Amazing network of long, straight filaments seen in great detail for first time in ionized gas; some of them follow magnetic field lines; New compact nebulae discovered with young massive stars, ranging from early to late stages of star formation Many candidate massive stars identified by brig ...
AST1100 Lecture Notes
... apparent and absolute magnitude. So the stars with a larger/smaller apparent magnitude also had a larger/smaller absolute magnitude. Since absolute magnitude is a measure of luminosity, what she had found was a period-luminosity relation. Pulsating stars with higher luminosity were thus found to be ...
... apparent and absolute magnitude. So the stars with a larger/smaller apparent magnitude also had a larger/smaller absolute magnitude. Since absolute magnitude is a measure of luminosity, what she had found was a period-luminosity relation. Pulsating stars with higher luminosity were thus found to be ...
Rogava_Course_-_First_lecture
... • Eta Carinae had a giant eruption or supernova impostor event seen around 1843. In a few years, it produced almost as much visible light as a supernova explosion, but it survived. ...
... • Eta Carinae had a giant eruption or supernova impostor event seen around 1843. In a few years, it produced almost as much visible light as a supernova explosion, but it survived. ...
12 Introduction to Cepheid Variable Stars Exercise
... distance to the bulb. This can be applied to stars, if you determine the apparent magnitude of the star and you know the absolute magnitude then you can calculate the distance to the star. Miss Henrietta Leavitt (1868 - 1921), working at the Harvard Observatory, determined the apparent magnitude and ...
... distance to the bulb. This can be applied to stars, if you determine the apparent magnitude of the star and you know the absolute magnitude then you can calculate the distance to the star. Miss Henrietta Leavitt (1868 - 1921), working at the Harvard Observatory, determined the apparent magnitude and ...
WSN 42 (2016) 132-142
... There are seven main spectral type each letter of the alphabet has become known. Each subspectra, which are numbered from 0 to 90. Stars according to their spectral characteristics to be classified. Star from radiation spectrum analysis of the elements that show radiation of different wavelengths, c ...
... There are seven main spectral type each letter of the alphabet has become known. Each subspectra, which are numbered from 0 to 90. Stars according to their spectral characteristics to be classified. Star from radiation spectrum analysis of the elements that show radiation of different wavelengths, c ...
Astronomy Assignment #1
... belt. Proxima Centauri is the nearest M-class main sequence star. Estimate the luminosities and temperature of these two stars from their positions on the HR diagram (Fig 58.3). Calculate the ratio of their sizes using the Stefan-Boltzmann law. From examining the H-R diagram in Figure 58.4 I estimat ...
... belt. Proxima Centauri is the nearest M-class main sequence star. Estimate the luminosities and temperature of these two stars from their positions on the HR diagram (Fig 58.3). Calculate the ratio of their sizes using the Stefan-Boltzmann law. From examining the H-R diagram in Figure 58.4 I estimat ...
How to Plot the H-R Diagram and Use its Applications
... There are seven main spectral type each letter of the alphabet has become known. Each subspectra, which are numbered from 0 to 90. Stars according to their spectral characteristics to be classified. Star from radiation spectrum analysis of the elements that show radiation of different wavelengths, c ...
... There are seven main spectral type each letter of the alphabet has become known. Each subspectra, which are numbered from 0 to 90. Stars according to their spectral characteristics to be classified. Star from radiation spectrum analysis of the elements that show radiation of different wavelengths, c ...
society journal - Auckland Astronomical Society
... The 2014 Debate: Should Pluto be a Planet? In 2006 the International Astronomical Union (IAU) stripped Pluto of its planet-hood, demoting it to dwarf planet status. Ever since, the Pluto is a Planet argument has seen ranging debate on both sides of the fence. Should it be reinstated to its former gl ...
... The 2014 Debate: Should Pluto be a Planet? In 2006 the International Astronomical Union (IAU) stripped Pluto of its planet-hood, demoting it to dwarf planet status. Ever since, the Pluto is a Planet argument has seen ranging debate on both sides of the fence. Should it be reinstated to its former gl ...
here - ESA Science
... Information from Hipparcos has enabled astronomers to trace the Sun’s passage through the Galaxy back in time. This has shown that over the last 500 million years the Sun has passed through four of the Milky Way’s spiral arms. The times that these traverses occurred appear to coincide with extended ...
... Information from Hipparcos has enabled astronomers to trace the Sun’s passage through the Galaxy back in time. This has shown that over the last 500 million years the Sun has passed through four of the Milky Way’s spiral arms. The times that these traverses occurred appear to coincide with extended ...
Oct 06, 2001
... B) It is the cloud from which protostars form C) It is a shell of gas ejected from a star late in its life. D) It is what is left when a white dwarf star explodes as a supernova. 8) What makes a high-mass star's core collapse? A) Energy from its outer layers compresses its core. B) The only thing t ...
... B) It is the cloud from which protostars form C) It is a shell of gas ejected from a star late in its life. D) It is what is left when a white dwarf star explodes as a supernova. 8) What makes a high-mass star's core collapse? A) Energy from its outer layers compresses its core. B) The only thing t ...
hubble_refurb
... The wispy, glowing, magenta structures in this image are the remains of a star 10 to 15 times the mass of the Sun that we would have seen exploding as a supernova 3,000 years ago. The remnant’s fast-moving gas is plowing into the surrounding gas of the galaxy, creating a supersonic shock wave in th ...
... The wispy, glowing, magenta structures in this image are the remains of a star 10 to 15 times the mass of the Sun that we would have seen exploding as a supernova 3,000 years ago. The remnant’s fast-moving gas is plowing into the surrounding gas of the galaxy, creating a supersonic shock wave in th ...
Basics of Astrophysics
... The speckle pattern change rapidly, if v is the speed of the wind the timescale can be roughly estimated by t = r/v where r is the size of the cell causing the speckle. With a rather ...
... The speckle pattern change rapidly, if v is the speed of the wind the timescale can be roughly estimated by t = r/v where r is the size of the cell causing the speckle. With a rather ...
DSLR Photometry
... CCD chip are not continuous and have gaps separating them, if light only falls on a couple of pixels, a significant amount will fall in the gaps and be lost. The more pixels covered, the less percentage of the light is lost to the cracks. ...
... CCD chip are not continuous and have gaps separating them, if light only falls on a couple of pixels, a significant amount will fall in the gaps and be lost. The more pixels covered, the less percentage of the light is lost to the cracks. ...
Nebula
... Nebulae often develop star-forming regions, such as in the Eagle Nebula. This nebula is depicted in one of NASA's most famous images, the "Pillars of Creation". In these regions the formations of gas, dust and other materials 'clump' together to form larger masses, which attract further matter, and ...
... Nebulae often develop star-forming regions, such as in the Eagle Nebula. This nebula is depicted in one of NASA's most famous images, the "Pillars of Creation". In these regions the formations of gas, dust and other materials 'clump' together to form larger masses, which attract further matter, and ...
Astronomy 122 mid Term Exam
... and review the material in Module 1 Lecture F. Also, as I said in class, if this inverse relation did not hold then cooler objects would be emitting short wavelength high energy photons which doesn’t make any physical sense because then a source at absolute zero would be emitting photons of infinite ...
... and review the material in Module 1 Lecture F. Also, as I said in class, if this inverse relation did not hold then cooler objects would be emitting short wavelength high energy photons which doesn’t make any physical sense because then a source at absolute zero would be emitting photons of infinite ...
File
... The Helix Nebula (see figure, bottom) is so close to us that it covers about half the apparent diameter in the sky as the full moon, though it is much fainter. Each planetary-nebula stage in the life of a Sun-like star lasts only about 50,000 years; after that time, the nebula spreads out and fades ...
... The Helix Nebula (see figure, bottom) is so close to us that it covers about half the apparent diameter in the sky as the full moon, though it is much fainter. Each planetary-nebula stage in the life of a Sun-like star lasts only about 50,000 years; after that time, the nebula spreads out and fades ...
Sirius - Springer
... Of all the fixed stars in the night sky, Sirius is by far the brightest – almost twice as bright as its nearest rival, the star Canopus, which lies too far south to be viewed from most of the Northern Hemisphere. Only the Sun, Moon and the planets Venus, Jupiter and, at times, Mars, appear brighter. ...
... Of all the fixed stars in the night sky, Sirius is by far the brightest – almost twice as bright as its nearest rival, the star Canopus, which lies too far south to be viewed from most of the Northern Hemisphere. Only the Sun, Moon and the planets Venus, Jupiter and, at times, Mars, appear brighter. ...
The Evening Sky Map
... Multiple star system with 6 components. 3 stars visible in telescope. Dist=52 ly. With Castor, the twin sons of Leda in classical mythology. Dist=34 ly. Brightest star in Leo. A blue-white star with at least 1 companion. Dist=77 ly. The brightest star in Orion. Blue supergiant star with mag 7 compan ...
... Multiple star system with 6 components. 3 stars visible in telescope. Dist=52 ly. With Castor, the twin sons of Leda in classical mythology. Dist=34 ly. Brightest star in Leo. A blue-white star with at least 1 companion. Dist=77 ly. The brightest star in Orion. Blue supergiant star with mag 7 compan ...
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.