Document
... condition and it was continuously expanding, even today. But the universe is getting cooler as well, scientists believe that universe was approximately 13.8 billion years ago. Scientists base the Big Bang theory on many different observations. The most important is the red shift of very far away gal ...
... condition and it was continuously expanding, even today. But the universe is getting cooler as well, scientists believe that universe was approximately 13.8 billion years ago. Scientists base the Big Bang theory on many different observations. The most important is the red shift of very far away gal ...
Unit 1
... – Radiation carries away energy in regions where the photons are not readily absorbed by stellar gas – Close to the cores of massive stars, there is enough material to impede the flow of energy through radiation ...
... – Radiation carries away energy in regions where the photons are not readily absorbed by stellar gas – Close to the cores of massive stars, there is enough material to impede the flow of energy through radiation ...
THE 3-D UNIVERSE CONCEPTS
... see these images, they are literally looking back in time. If astronomers know how far away an object is, they can then determine how long it took for the light to reach them, and thus how far back in time they are looking. Seeing snapshots of the Universe at various stages in its history shows astr ...
... see these images, they are literally looking back in time. If astronomers know how far away an object is, they can then determine how long it took for the light to reach them, and thus how far back in time they are looking. Seeing snapshots of the Universe at various stages in its history shows astr ...
NASA scientists think distant worlds could be even
... For many astronomers, the most important planet to study is Earth — the only known planet with life. Life on Earth began in the ocean. “We need Earth climate science," said astrobiologist Nancy Kiang, a research scientist at NASA’s Goddard Institute for Space Studies. It helps us understand the poss ...
... For many astronomers, the most important planet to study is Earth — the only known planet with life. Life on Earth began in the ocean. “We need Earth climate science," said astrobiologist Nancy Kiang, a research scientist at NASA’s Goddard Institute for Space Studies. It helps us understand the poss ...
light energy
... • Distances can be deceiving: Bright stars look close, but may be very far away Star Approx. Distance (LY) P. Centari ...
... • Distances can be deceiving: Bright stars look close, but may be very far away Star Approx. Distance (LY) P. Centari ...
Glossary of Space Terms
... Galaxy: A gigantic system of stars, gas and dust, exemplified by the Milky Way Galaxy of which the Sun is a member. Galaxies, now known in very large numbers throughout the Universe, were originally indistinguishable from nebulae. ...
... Galaxy: A gigantic system of stars, gas and dust, exemplified by the Milky Way Galaxy of which the Sun is a member. Galaxies, now known in very large numbers throughout the Universe, were originally indistinguishable from nebulae. ...
ppt
... – Combine Your Genetic Code with Your Body’s Data Flow – Use Powerful AI Data Mining Techniques ...
... – Combine Your Genetic Code with Your Body’s Data Flow – Use Powerful AI Data Mining Techniques ...
Telescopes
... Interferometers A device consisting of two or more telescopes connected together to work as a single instrument. Allow for a high resolving power, the ability to see small scale features. Can be used to increase the power of radio, infrared, and visible ...
... Interferometers A device consisting of two or more telescopes connected together to work as a single instrument. Allow for a high resolving power, the ability to see small scale features. Can be used to increase the power of radio, infrared, and visible ...
Document
... a) main sequence stars, b) red giant stars, c) white dwarf stars, d) protostars 15. The centers of granules a. are hot material rising to the photosphere from below. b. are cool material falling from the photosphere to the regions below. c. are fainter and hotter than their surroundings. d. are brig ...
... a) main sequence stars, b) red giant stars, c) white dwarf stars, d) protostars 15. The centers of granules a. are hot material rising to the photosphere from below. b. are cool material falling from the photosphere to the regions below. c. are fainter and hotter than their surroundings. d. are brig ...
Lecture 7
... The main disadvantages of film as an astronomical detector are 1. very low quantum efficiency (QE). This is the fraction of photons falling on the detector which are recorded. For film, it's typically about 0.02, which means that 98% of the light falling on the film is not recorded. ...
... The main disadvantages of film as an astronomical detector are 1. very low quantum efficiency (QE). This is the fraction of photons falling on the detector which are recorded. For film, it's typically about 0.02, which means that 98% of the light falling on the film is not recorded. ...
The Newtonian Revolution: The discovery of natural law
... with a sun-centered universe. But, • They reasoned if the earth orbited the sun we should see parallax motion in the stars. They didn’t, and so thought the earth must be at the center… Very unfortunate decision, as luck would ...
... with a sun-centered universe. But, • They reasoned if the earth orbited the sun we should see parallax motion in the stars. They didn’t, and so thought the earth must be at the center… Very unfortunate decision, as luck would ...
Classifying Stars (pages 753–754) Key Concept: Characteristics
... Classifying Stars (pages 753–754) Key Concept: Characteristics used to classify stars include color, temperature, size, composition, and brightness. ...
... Classifying Stars (pages 753–754) Key Concept: Characteristics used to classify stars include color, temperature, size, composition, and brightness. ...
A Unique Environmental Studies Program
... Because planets "wander" or move against the background of "fixed" stars, different planets will be visible at different times of the year. The planets which you may be able to see include Jupiter, Saturn, Venus and Mars. By looking in the daily newspapers in the weather report section, you will be ...
... Because planets "wander" or move against the background of "fixed" stars, different planets will be visible at different times of the year. The planets which you may be able to see include Jupiter, Saturn, Venus and Mars. By looking in the daily newspapers in the weather report section, you will be ...
Team 6 Presentation
... Globular Cluster Results Our Observations, although valid in analysis, did not match in turn off points with the Main Sequence Diagram. There are a number of possible error sources which include: ...
... Globular Cluster Results Our Observations, although valid in analysis, did not match in turn off points with the Main Sequence Diagram. There are a number of possible error sources which include: ...
A billion pixels, a billion stars
... nearest stars are (astronomically) far away, their associated parallaxes are tiny. Most amount to less than a few hundred microarcseconds (μas), where 1 μas is equivalent to the thickness of a human hair seen from a distance of 10 000 km. To measure such small angles, astronomers must make repeated, ...
... nearest stars are (astronomically) far away, their associated parallaxes are tiny. Most amount to less than a few hundred microarcseconds (μas), where 1 μas is equivalent to the thickness of a human hair seen from a distance of 10 000 km. To measure such small angles, astronomers must make repeated, ...
Stellar Evolution Slideshow
... Supernova ejection cloud travels away quickly, and the intense heat, pressure, electrons, etc. cause all the heavier elements to form in the universe. So, really, we’re all formed from the remains of stars! • My head hurts now…. ...
... Supernova ejection cloud travels away quickly, and the intense heat, pressure, electrons, etc. cause all the heavier elements to form in the universe. So, really, we’re all formed from the remains of stars! • My head hurts now…. ...
Planets - TeachingEnglish
... in 2009. So far it has discovered five new Earth-sized planets beyond our solar system. These planets are hotter than the Earth’s sun – much too hot for life as we know it. The Kepler team predict that they will need at least three years (and possibly longer) to find an Earth-like planet. The simple ...
... in 2009. So far it has discovered five new Earth-sized planets beyond our solar system. These planets are hotter than the Earth’s sun – much too hot for life as we know it. The Kepler team predict that they will need at least three years (and possibly longer) to find an Earth-like planet. The simple ...
Making H-R Diagrams - PLC-METS
... see them the same. The apparent magnitude of a star is the amount of light received on Earth or the brightness of the star as seen from Earth. This is different than the absolute magnitude because the absolute magnitude is based upon the amount of light the star gives off. This difference is the rea ...
... see them the same. The apparent magnitude of a star is the amount of light received on Earth or the brightness of the star as seen from Earth. This is different than the absolute magnitude because the absolute magnitude is based upon the amount of light the star gives off. This difference is the rea ...
Chapter 16
... they too shrink as more mass is added! When the mass of a Neutron star exceeds 3 M it will collapse into a singularity, a point of infinite density, where the known laws of physics break down. ...
... they too shrink as more mass is added! When the mass of a Neutron star exceeds 3 M it will collapse into a singularity, a point of infinite density, where the known laws of physics break down. ...
Astronomy 103 – Midterm 2 – October 29, 2014
... 34. You observe two stars in the sky. Star A is a spectral class O supergiant, star B is a spectral class O white dwarf. What can you say about their temperatures? a) A is hotter than B b) B is hotter than A c) A and B have approximately the same temperature d) We do not have enough information to d ...
... 34. You observe two stars in the sky. Star A is a spectral class O supergiant, star B is a spectral class O white dwarf. What can you say about their temperatures? a) A is hotter than B b) B is hotter than A c) A and B have approximately the same temperature d) We do not have enough information to d ...
PowerPoint 演示文稿 - Chinese Virtual Observatory
... • Cross identification of multi-waveband surveys —Virtual Observatory LAMOST 星系红移巡天 ...
... • Cross identification of multi-waveband surveys —Virtual Observatory LAMOST 星系红移巡天 ...
Section I - General Information Proposal Title: The effect of the group
... Galaxies are collections of hundreds of billions of stars formed out of the gaseous matrix that permeated the early Universe. The observed properties of galaxies are known to depend on their surrounding local environment. However, astronomers are still struggling to understand to what extent galaxy ...
... Galaxies are collections of hundreds of billions of stars formed out of the gaseous matrix that permeated the early Universe. The observed properties of galaxies are known to depend on their surrounding local environment. However, astronomers are still struggling to understand to what extent galaxy ...
International Ultraviolet Explorer
The International Ultraviolet Explorer (IUE) was an astronomical observatory satellite primarily designed to take ultraviolet spectra. The satellite was a collaborative project between NASA, the UK Science Research Council and the European Space Agency (ESA). The mission was first proposed in early 1964, by a group of scientists in the United Kingdom, and was launched on January 26, 1978 aboard a NASA Delta rocket. The mission lifetime was initially set for 3 years, but in the end it lasted almost 18 years, with the satellite being shut down in 1996. The switch-off occurred for financial reasons, while the telescope was still functioning at near original efficiency.It was the first space observatory to be operated in real time by astronomers who visited the groundstations in the United States and Europe. Astronomers made over 104,000 observations using the IUE, of objects ranging from solar system bodies to distant quasars. Among the significant scientific results from IUE data were the first large scale studies of stellar winds, accurate measurements of the way interstellar dust absorbs light, and measurements of the supernova SN1987A which showed that it defied stellar evolution theories as they then stood. When the mission ended, it was considered the most successful astronomical satellite ever.