Navigate without compass
... In finding the North Star, the Big Dipper (Ursa Major) and Cassiopeia (shaped like a W) are helpful. Neither of these constellations ever sets and they are always visible on a clear night, however, they are not always in the same place. The position of the stars in the sky depends on the time, date ...
... In finding the North Star, the Big Dipper (Ursa Major) and Cassiopeia (shaped like a W) are helpful. Neither of these constellations ever sets and they are always visible on a clear night, however, they are not always in the same place. The position of the stars in the sky depends on the time, date ...
Luminosity - U of L Class Index
... • The light curve of this pulsating variable star shows that its brightness alternately rises and falls over a 50-day period ...
... • The light curve of this pulsating variable star shows that its brightness alternately rises and falls over a 50-day period ...
Exercise 4 (Stars and the universe) Suggested answers
... Exercise 4 (Stars and the universe) Suggested answers 1. (a) The star is nearly a blackbody, the spectrum of a star can be approximated as a blackbody radiation curve. On the curve, there is a peak which shifts to shorter wavelength when the temperature of the blackbody increases. From the position ...
... Exercise 4 (Stars and the universe) Suggested answers 1. (a) The star is nearly a blackbody, the spectrum of a star can be approximated as a blackbody radiation curve. On the curve, there is a peak which shifts to shorter wavelength when the temperature of the blackbody increases. From the position ...
Sirius Astronomer - Orange County Astronomers
... orbit an ordinary star (the only smaller known orbit neutron stars). The planet, Kepler-37b, is smaller than Mercury, but slightly larger than our Moon. The discovery was made by a collaboration between Kepler scientists and asteroseismologists, those who study the oscillations in a star’s brightnes ...
... orbit an ordinary star (the only smaller known orbit neutron stars). The planet, Kepler-37b, is smaller than Mercury, but slightly larger than our Moon. The discovery was made by a collaboration between Kepler scientists and asteroseismologists, those who study the oscillations in a star’s brightnes ...
PHYS3380_110215_bw - The University of Texas at Dallas
... •In stars more than 1.3 times the mass of the Sun, the nuclear fusion of hydrogen into helium occurs via CNO cycle instead of the proton-proton chain. The CNO process is very temperature sensitive, so the core is very hot but the temperature falls off rapidly. Therefore, the core region forms a conv ...
... •In stars more than 1.3 times the mass of the Sun, the nuclear fusion of hydrogen into helium occurs via CNO cycle instead of the proton-proton chain. The CNO process is very temperature sensitive, so the core is very hot but the temperature falls off rapidly. Therefore, the core region forms a conv ...
ElectroMagnetic Notes
... • If the source is moving toward the observer, waves become compressed • A shorter wavelength will appear blue • This is called a blue-shift ...
... • If the source is moving toward the observer, waves become compressed • A shorter wavelength will appear blue • This is called a blue-shift ...
Name:
... this star you can find a larger, bowl-shaped figure with a handle called the Big 3)_________________. Once you find this pattern you can use the “Pointer Stars” at the top of the bowl to help you find the Pole Star anytime of year. Extend a line to the upper left from the Big Dipper and through the ...
... this star you can find a larger, bowl-shaped figure with a handle called the Big 3)_________________. Once you find this pattern you can use the “Pointer Stars” at the top of the bowl to help you find the Pole Star anytime of year. Extend a line to the upper left from the Big Dipper and through the ...
1 Dr. Steve Hawley Volume 35 Number 04 APRIL 2009
... as a planet becomes even less certain beyond Earth's solar system, where space telescopes have uncovered more than 300 exoplanets orbiting stars other than the sun. "No one is writing a law or rule that you have to call them this or that," said Sara Seager, an astrophysicist at MIT. She pointed out ...
... as a planet becomes even less certain beyond Earth's solar system, where space telescopes have uncovered more than 300 exoplanets orbiting stars other than the sun. "No one is writing a law or rule that you have to call them this or that," said Sara Seager, an astrophysicist at MIT. She pointed out ...
Formation and Disruption of Cosmological Low Mass Objects
... recombination era little information is accessible until z ∼ 5, after that we can observe luminous objects such as galaxies and QSOs. On the other hand, the reionization of the intergalactic medium and the presence of heavy elements at high-z suggest that there are other population of luminous objec ...
... recombination era little information is accessible until z ∼ 5, after that we can observe luminous objects such as galaxies and QSOs. On the other hand, the reionization of the intergalactic medium and the presence of heavy elements at high-z suggest that there are other population of luminous objec ...
Earth in Space and Time (SC.5.E.5.1)
... actually larger than the Sun. If this is true, why do these stars appear like points of light in the sky? A. These stars are hotter than the Sun. B. These stars have less mass than the Sun. C. These stars are farther away from Earth than the Sun is. D. These stars are made of different chemicals tha ...
... actually larger than the Sun. If this is true, why do these stars appear like points of light in the sky? A. These stars are hotter than the Sun. B. These stars have less mass than the Sun. C. These stars are farther away from Earth than the Sun is. D. These stars are made of different chemicals tha ...
The Universe Fine-Tuned for Life
... If the magnitude of strong interaction were greater by only two percent, two protons could combine to form a nucleus made of just two protons. This process, which is governed by strong interaction, would be much more rapid than the deuteron formation, which is governed by weak interaction. In this c ...
... If the magnitude of strong interaction were greater by only two percent, two protons could combine to form a nucleus made of just two protons. This process, which is governed by strong interaction, would be much more rapid than the deuteron formation, which is governed by weak interaction. In this c ...
Good Vibrations and Stellar Pulsations - Physics
... homepage.mac.com/kvmagruder/bcp/aster/constellations/Sgr.htm ...
... homepage.mac.com/kvmagruder/bcp/aster/constellations/Sgr.htm ...
Which of the following is not a characteristic of the stars of the disk
... Please indicate the best answer to the following questions on the answer sheet provided. 1. Which of the following is not a characteristic of the stars of the disk component of our galaxy? a. circular orbits, b. randomly inclined orbits, c. higher metal abundance d. young stars, 2. The mass of a sin ...
... Please indicate the best answer to the following questions on the answer sheet provided. 1. Which of the following is not a characteristic of the stars of the disk component of our galaxy? a. circular orbits, b. randomly inclined orbits, c. higher metal abundance d. young stars, 2. The mass of a sin ...
Star Information ppt.
... • Because all of a cluster’s stars we born at the same time, we can measure a cluster’s age by finding the ...
... • Because all of a cluster’s stars we born at the same time, we can measure a cluster’s age by finding the ...
Star Spectra - Renton School District
... A star orbited by a large planet will move in a small circle. This will cause its spectrum to be slightly redshifted part of the time and blueshifted at other times. ...
... A star orbited by a large planet will move in a small circle. This will cause its spectrum to be slightly redshifted part of the time and blueshifted at other times. ...
SNC 1D1 Space Unit Review Answers How long does it take the
... 23. Why is the length of a year on Earth different from the length of a year on other planets? Because they have different lengths of time that they take to orbit the Sun. 24. Name and describe the predominant scientific theory on how the universe was formed. -Big Bang Theory: 14 billion years ago, ...
... 23. Why is the length of a year on Earth different from the length of a year on other planets? Because they have different lengths of time that they take to orbit the Sun. 24. Name and describe the predominant scientific theory on how the universe was formed. -Big Bang Theory: 14 billion years ago, ...
here - Lund Observatory
... a) Calculate the temperature of the Sun from Wien’s displacement law if the intensity maximum for the solar radiation is 470 nm. b) At the wavelength of 430 nm the intensity of the Sun is 1.14 times higher than at 550 nm. Calculate the colour temperature of the Sun using Wien’s approximation of Plan ...
... a) Calculate the temperature of the Sun from Wien’s displacement law if the intensity maximum for the solar radiation is 470 nm. b) At the wavelength of 430 nm the intensity of the Sun is 1.14 times higher than at 550 nm. Calculate the colour temperature of the Sun using Wien’s approximation of Plan ...
Antares - Emmi
... Antares is in the constellation scorpio The Scorpio constellations story is an ancient Greek myth. Orion the hunter was the best hunter in the world and the most handsome man. He bragged that he would kill every animal on Earth. Apollo guardian of the cows pleaded with Hera the queen of the gods t ...
... Antares is in the constellation scorpio The Scorpio constellations story is an ancient Greek myth. Orion the hunter was the best hunter in the world and the most handsome man. He bragged that he would kill every animal on Earth. Apollo guardian of the cows pleaded with Hera the queen of the gods t ...
Impact on stellar properties of changing physics SAC Summer
... chemical composition of the star. Stars on the Hayashi track are completely convective during the first one million years of the collapse (Carroll & Ostlie , 2007). During this period the first stage of nuclear burning occurs in the stellar core once the temperatures are high enough to enable nuclea ...
... chemical composition of the star. Stars on the Hayashi track are completely convective during the first one million years of the collapse (Carroll & Ostlie , 2007). During this period the first stage of nuclear burning occurs in the stellar core once the temperatures are high enough to enable nuclea ...
Lectures 14 & 15 powerpoint (neutron stars & black holes)
... hole might suggest that it’s impossible to get energy out of such an object. Some X-ray binaries show jets perpendicular to the accretion disk. ...
... hole might suggest that it’s impossible to get energy out of such an object. Some X-ray binaries show jets perpendicular to the accretion disk. ...
Galaxy Questions Info
... A spiral galaxy consists of a flattened disk containing spiral (pinwheel-shaped) arms, a bulge at its center, and a halo. Spiral galaxies have a variety of shapes, and they are classified according to the size of the bulge and the tightness and appearance of the arms. The spiral arms, which wrap aro ...
... A spiral galaxy consists of a flattened disk containing spiral (pinwheel-shaped) arms, a bulge at its center, and a halo. Spiral galaxies have a variety of shapes, and they are classified according to the size of the bulge and the tightness and appearance of the arms. The spiral arms, which wrap aro ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.