ASTR 1101-001 Spring 2008 - Louisiana State University
... through telescopes but were not bright enough to be seen by Greek astronomers). • The Sun can also be put on this “magnitude” system. ...
... through telescopes but were not bright enough to be seen by Greek astronomers). • The Sun can also be put on this “magnitude” system. ...
Clues to the Origin of the Solar System
... ! Sun, Jupiter, and Saturn have same hydrogen dominated composition implying they formed from the same materials. ! Terrestrial planets and satellites are deficient in light gases and ices. Formed too close to Sun for gases/ices to remain, leaving heavier rock and metal. ...
... ! Sun, Jupiter, and Saturn have same hydrogen dominated composition implying they formed from the same materials. ! Terrestrial planets and satellites are deficient in light gases and ices. Formed too close to Sun for gases/ices to remain, leaving heavier rock and metal. ...
Star Life Cycle Powerpoin
... Supergiant: Massive stars become larger than giants as they leave the main sequence….they can be 100 to 1,000 times larger than the sun. Supernova: the explosion of a supergiant ...
... Supergiant: Massive stars become larger than giants as they leave the main sequence….they can be 100 to 1,000 times larger than the sun. Supernova: the explosion of a supergiant ...
Mon Oct 22, 2012 MOON IN CAPRICORNUS The moon is waxing
... answer to this question, but only if the skies are very clear, and very dark, and you know just where to look. It’s a very dim smudge of light that lies in the direction of the constellation Andromeda. But this small spot is neither little, nor does it have any physical connection with the stars of ...
... answer to this question, but only if the skies are very clear, and very dark, and you know just where to look. It’s a very dim smudge of light that lies in the direction of the constellation Andromeda. But this small spot is neither little, nor does it have any physical connection with the stars of ...
Chapter 30 Notes
... Black hole- an object so massive (not always big but having a lot of mass) and dense that even light cannot escape its gravity. Some massive stars produce leftovers too massive to become stable neutron stars. These leftovers contract and the force of the contraction leaves a black hole. Star Groups ...
... Black hole- an object so massive (not always big but having a lot of mass) and dense that even light cannot escape its gravity. Some massive stars produce leftovers too massive to become stable neutron stars. These leftovers contract and the force of the contraction leaves a black hole. Star Groups ...
astronomy practice Answers - hhs-snc1d
... b) gravity and light. c) mass and diameter. d) gravity and outward pressure. (gravity and nuclear fusion) 12) Our Sun is about _________ years old and about _________ through its life span. a) 5 billion years, half b) 12 billion years, third c) 5 million years, third d) 10 billion years, 90 percent ...
... b) gravity and light. c) mass and diameter. d) gravity and outward pressure. (gravity and nuclear fusion) 12) Our Sun is about _________ years old and about _________ through its life span. a) 5 billion years, half b) 12 billion years, third c) 5 million years, third d) 10 billion years, 90 percent ...
What do the stars tell us?
... Today, the stars provide us with information on the more distant past and future of Earth, the Sun, the solar system and our universe. Nearly all the light collected by telescopes comes from stars. ...
... Today, the stars provide us with information on the more distant past and future of Earth, the Sun, the solar system and our universe. Nearly all the light collected by telescopes comes from stars. ...
ppt - Astronomy & Physics
... When light with a continuous spectrum passes through cool gas, dark lines appear in the continuous spectrum. Such “cool” gas exists in outer layers of stars, absorbing light at certain wavelengths from continuous spectrum coming from below. ...
... When light with a continuous spectrum passes through cool gas, dark lines appear in the continuous spectrum. Such “cool” gas exists in outer layers of stars, absorbing light at certain wavelengths from continuous spectrum coming from below. ...
Where do we come from?
... years The growth of black holes. Clusters of gargantuan black holes (1011 solar masses) in place of clusters of galaxies. Moving black holes radiate gravitational waves (ripples in space-time). ...
... years The growth of black holes. Clusters of gargantuan black holes (1011 solar masses) in place of clusters of galaxies. Moving black holes radiate gravitational waves (ripples in space-time). ...
Extra-Solar Planets
... • META (million channel extraterrestrial assay) -scans one million channels in the band • BETA (billion channel version of META) • 84 ft. dish antenna at Harvard Univ. • connected to supercomputers that look for nonrandom patterns in the signals (most of the signals come from natural sources such as ...
... • META (million channel extraterrestrial assay) -scans one million channels in the band • BETA (billion channel version of META) • 84 ft. dish antenna at Harvard Univ. • connected to supercomputers that look for nonrandom patterns in the signals (most of the signals come from natural sources such as ...
Chapter 11: Stars
... temperature can only be inferred from models. • Surface T is easier to measure than its luminosity because it does not depend on distance. ...
... temperature can only be inferred from models. • Surface T is easier to measure than its luminosity because it does not depend on distance. ...
proper motion
... The Sun-centered model of the solar system laid out by Copernicus in De Revolutionibus (1543) made a very specific prediction: that the nearby stars should exhibit parallax shifts with respect to the distant background of stars. Tycho Brahe improved positional measures from +/- 10 arc minutes to as ...
... The Sun-centered model of the solar system laid out by Copernicus in De Revolutionibus (1543) made a very specific prediction: that the nearby stars should exhibit parallax shifts with respect to the distant background of stars. Tycho Brahe improved positional measures from +/- 10 arc minutes to as ...
File
... constellation of Cygnus. The angular difference was found to be 0.292 arcseconds. This gives a distance of 3.48 pc, or 11.36 light years ...
... constellation of Cygnus. The angular difference was found to be 0.292 arcseconds. This gives a distance of 3.48 pc, or 11.36 light years ...
Spectral Variations of Several RV Tauri Type Stars Patrick Durant
... We have examined the spectra of several RV Tauri type stars including AC Her, SX Her and V Vul. As is typical of this variable type, the stars show changes in spectral type and line strength in addition to changes in their light curve over time. Our group has acquired spectra of these stars during t ...
... We have examined the spectra of several RV Tauri type stars including AC Her, SX Her and V Vul. As is typical of this variable type, the stars show changes in spectral type and line strength in addition to changes in their light curve over time. Our group has acquired spectra of these stars during t ...
Astronomy_Stars_n_Galaxies_PowerPoint
... • In the 1920’s, American astronomer Edwin Hubble discovered that the light given off by a star or galaxy gets “stretched” if it is moving away from us. This causes the light being given off to have a longer wavelength and the object to appear redder than it really is. This is called the red shift. ...
... • In the 1920’s, American astronomer Edwin Hubble discovered that the light given off by a star or galaxy gets “stretched” if it is moving away from us. This causes the light being given off to have a longer wavelength and the object to appear redder than it really is. This is called the red shift. ...
Scales of the Universe
... Cool molecular clouds gravitationally collapse to form clusters of stars ...
... Cool molecular clouds gravitationally collapse to form clusters of stars ...
The Sun: Example of Radiation Laws
... Neutron Stars and Black Holes • If matter is forced to even higher densities than in a white dwarf, 106 times that of water, it collapses but could stabilize to form a neutron star with aid of additional pressure from nucleon degeneracy and the strong nuclear force. ...
... Neutron Stars and Black Holes • If matter is forced to even higher densities than in a white dwarf, 106 times that of water, it collapses but could stabilize to form a neutron star with aid of additional pressure from nucleon degeneracy and the strong nuclear force. ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.