Light Phenomena Around Us
... • Observed from the Earth, a star is essentially a pin-point light source. • As starlight travels from space into the Earth’s atmosphere, the rays are refracted. • Since the atmosphere is constantly changing due to turbulence, the amount of refraction also constantly changes. • This causes the image ...
... • Observed from the Earth, a star is essentially a pin-point light source. • As starlight travels from space into the Earth’s atmosphere, the rays are refracted. • Since the atmosphere is constantly changing due to turbulence, the amount of refraction also constantly changes. • This causes the image ...
Content Clarification for Modeling the Universe: Earth and Space
... temperature, and age, but they appear to be made up of the same elements that are found on the earth and to behave according to the same physical principles. Unlike the sun, most stars are in systems of two or more stars orbiting around one another. • On the basis of scientific evidence, the univers ...
... temperature, and age, but they appear to be made up of the same elements that are found on the earth and to behave according to the same physical principles. Unlike the sun, most stars are in systems of two or more stars orbiting around one another. • On the basis of scientific evidence, the univers ...
The Hidden Lives of Galaxies NSTA 2001
... Stage 4 Main sequence star Star shines, pressure and gravity determine the next stages of a star’s life. Our sun is in this stage. Average time to be a main sequence star is 10 billion years ...
... Stage 4 Main sequence star Star shines, pressure and gravity determine the next stages of a star’s life. Our sun is in this stage. Average time to be a main sequence star is 10 billion years ...
Astronomy Milestone/OAS practice
... 26. A hurricane-type cloud known as the Great Red Spot can be found on which planet? A. Saturn B. Mars C. Uranus D. Jupiter 27. The atmosphere of Venus consists of thick yellow clouds formed mostly from A. helium. B. sulfur. C. hydrogen. D. carbon. 28. Which accounts for the fact that a compass can ...
... 26. A hurricane-type cloud known as the Great Red Spot can be found on which planet? A. Saturn B. Mars C. Uranus D. Jupiter 27. The atmosphere of Venus consists of thick yellow clouds formed mostly from A. helium. B. sulfur. C. hydrogen. D. carbon. 28. Which accounts for the fact that a compass can ...
File
... 11. What famous stars are often confused as constellations and what are they really? Big dipper and Little dipper – they are actually asterisms - prominent patterns or groups of stars, typically having a popular name but smaller than a constellation 12. Explain precession and what it means in the fu ...
... 11. What famous stars are often confused as constellations and what are they really? Big dipper and Little dipper – they are actually asterisms - prominent patterns or groups of stars, typically having a popular name but smaller than a constellation 12. Explain precession and what it means in the fu ...
Measuring the Sky - Physics and Astronomy and more!
... True, they emit light, but it’s not a fluid ...
... True, they emit light, but it’s not a fluid ...
Presentation - The Stimulating Physics Network
... mainly gas planets, which are easier to find than small or rocky planets, as gas planets are usually massive, like our resident gas giants Jupiter and Saturn. This is exoplanet Kepler 22b. ...
... mainly gas planets, which are easier to find than small or rocky planets, as gas planets are usually massive, like our resident gas giants Jupiter and Saturn. This is exoplanet Kepler 22b. ...
Lecture 1: Properties of the Solar System Properties of the Solar
... Example: The semimajor axis of Mars is 1.5237 AU and the eccentricity is 0.0934. What is the distance of Mars at perihelion? r = a(1-e) ...
... Example: The semimajor axis of Mars is 1.5237 AU and the eccentricity is 0.0934. What is the distance of Mars at perihelion? r = a(1-e) ...
Chapter 16 Lesson 2: What is a Star
... Lesson 2: What is a star? How the Sun Stacks Up as a Star a. The Sun is a star because all stars are very large balls of hot gases that give off electromagnetic radiation. b. The Sun gives off huge amounts of heat and light energy, due to very high heat and pressure that push hydrogen atoms together ...
... Lesson 2: What is a star? How the Sun Stacks Up as a Star a. The Sun is a star because all stars are very large balls of hot gases that give off electromagnetic radiation. b. The Sun gives off huge amounts of heat and light energy, due to very high heat and pressure that push hydrogen atoms together ...
Science 8
... Know that the sun is a star composition reactions the electromagnetic spectrum types (sizes, colors, magnitude) Life cycle arrangement (galaxies) ...
... Know that the sun is a star composition reactions the electromagnetic spectrum types (sizes, colors, magnitude) Life cycle arrangement (galaxies) ...
Ch.1, Sec.3 - Mapping the Stars
... When you put those numbers together, you get an estimate of 1024 stars in the entire Universe or a 1 followed by 24 zeroes (called one septillion)! That’s 1,000,000,000,000,000,000,000,000 stars or more than all the combined grains of sand on planet Earth!!!! ...
... When you put those numbers together, you get an estimate of 1024 stars in the entire Universe or a 1 followed by 24 zeroes (called one septillion)! That’s 1,000,000,000,000,000,000,000,000 stars or more than all the combined grains of sand on planet Earth!!!! ...
If Earth had no tilt, what else would happen?
... •The poles would receive less direct light and thus be colder making the survival rate there lower as well. •The species would have evolved differently (micro-evolution), thus different life would be on Earth. •But we would have a habitable zone between the poles and the equator, but unfortunately i ...
... •The poles would receive less direct light and thus be colder making the survival rate there lower as well. •The species would have evolved differently (micro-evolution), thus different life would be on Earth. •But we would have a habitable zone between the poles and the equator, but unfortunately i ...
Habitability: Good, Bad and the Ugly
... • Definition of luminosity (watts/m2) • Sun’s luminosity has been changing: earlier in its evolution, luminosity was only 70% of what it is today (how could temperature be maintained over geological time) • Future for luminosity – Remember star sequence from lab and lecture – 2-3 BY, luminosity will ...
... • Definition of luminosity (watts/m2) • Sun’s luminosity has been changing: earlier in its evolution, luminosity was only 70% of what it is today (how could temperature be maintained over geological time) • Future for luminosity – Remember star sequence from lab and lecture – 2-3 BY, luminosity will ...
Star and Planet Formation - Homepages of UvA/FNWI staff
... 1. If the Earth rotates around the Sun, birds should actually stay behind because of the movement of the Earth on its orbit. 2. If the Earth rotates around its axis (as required to explain day and night), things should fly off the spinning planet. 3. If the Earth rotates around the Sun, we should ob ...
... 1. If the Earth rotates around the Sun, birds should actually stay behind because of the movement of the Earth on its orbit. 2. If the Earth rotates around its axis (as required to explain day and night), things should fly off the spinning planet. 3. If the Earth rotates around the Sun, we should ob ...
Sky Science Notes
... enters the first quarter and it is a crescent shaped half circle. Between the First Quarter and the full moon we see over half the face of the moon illuminated. We call this phase a waxing gibbous. A week after the first quarter a full moon appears. The entire face of the moon is illuminated from ou ...
... enters the first quarter and it is a crescent shaped half circle. Between the First Quarter and the full moon we see over half the face of the moon illuminated. We call this phase a waxing gibbous. A week after the first quarter a full moon appears. The entire face of the moon is illuminated from ou ...
The Crust
... Caveat: We are relegated to only considering life as we know it & to considering physical conditions similar to Earth • Greenhouse effect: Increases surface T (e.g., Venus, at 0.72 AU, is within HZ, but Ts~745 K!) • Lifetime of star: larger mass = shorter lifetime (must be long enough for evolution) ...
... Caveat: We are relegated to only considering life as we know it & to considering physical conditions similar to Earth • Greenhouse effect: Increases surface T (e.g., Venus, at 0.72 AU, is within HZ, but Ts~745 K!) • Lifetime of star: larger mass = shorter lifetime (must be long enough for evolution) ...
Chapter 15 Stars, Galaxies
... 8. d 9. b 10. a 11. c 12. a. Protostar b. Supergiant c. Supernova d. Black Hole e. Stars that are the most massive become black holes. Stars that are less massive but still high-mass stars become neutron stars. f. They all start out as a part of nebulas that contract to form protostars. g. Low-mass ...
... 8. d 9. b 10. a 11. c 12. a. Protostar b. Supergiant c. Supernova d. Black Hole e. Stars that are the most massive become black holes. Stars that are less massive but still high-mass stars become neutron stars. f. They all start out as a part of nebulas that contract to form protostars. g. Low-mass ...
sidereal day
... •The poles would receive less direct light and thus be colder making the survival rate there lower as well. •The species would have evolved differently (micro-evolution), thus different life would be on Earth. •But we would have a habitable zone between the poles and the equator, but unfortunately i ...
... •The poles would receive less direct light and thus be colder making the survival rate there lower as well. •The species would have evolved differently (micro-evolution), thus different life would be on Earth. •But we would have a habitable zone between the poles and the equator, but unfortunately i ...
7.1: The Earth`s Role in our Solar System Science Starter
... letter you were given during class • When Mr. Houtz says go, you will move to your station quickly and read the directions. • You will stay at your station and only at your ...
... letter you were given during class • When Mr. Houtz says go, you will move to your station quickly and read the directions. • You will stay at your station and only at your ...
Revolutions of Earth
... the motion of the planets. Johannes Kepler solved the problem a short time later when he determined that the planets moved around the Sun in ellipses (ovals), not circles (Figure 1.2). Kepler’s model matched observations perfectly. Animation of Kepler’s Laws of Planetary Motion: http://projects.astr ...
... the motion of the planets. Johannes Kepler solved the problem a short time later when he determined that the planets moved around the Sun in ellipses (ovals), not circles (Figure 1.2). Kepler’s model matched observations perfectly. Animation of Kepler’s Laws of Planetary Motion: http://projects.astr ...
Basic data of CoRoT-Exo-2b - tls
... TIFF (Uncompressed) decompressor are needed to see this picture. ...
... TIFF (Uncompressed) decompressor are needed to see this picture. ...
For Chapter 16
... • Astronomy – the scientific study of the universe beyond Earth’s atmosphere • Universe – everything, all energy, matter, and space • The Milky Way– one of 50 billion galaxies scattered throughout the universe • Solar System – contains our Sun and 9 planets • Sun – supplies the energy for nearly all ...
... • Astronomy – the scientific study of the universe beyond Earth’s atmosphere • Universe – everything, all energy, matter, and space • The Milky Way– one of 50 billion galaxies scattered throughout the universe • Solar System – contains our Sun and 9 planets • Sun – supplies the energy for nearly all ...
Procedure - Matt Jorgensen E
... regular and predictable motion 8.3.3.1.3 Recognize that gravitational force exists between any two objects and describe how the masses of the objects and distance between them affect the force 8.3.3.1.4 Compare and contrast the sizes, locations, and compositions of the planets and moons in our solar ...
... regular and predictable motion 8.3.3.1.3 Recognize that gravitational force exists between any two objects and describe how the masses of the objects and distance between them affect the force 8.3.3.1.4 Compare and contrast the sizes, locations, and compositions of the planets and moons in our solar ...
MULTIPLE CHOICE QUESTIONS (50 pts
... B. due to atmospheric refraction C. due to atmospheric reflection D. because in two years there will be a leap year E. because the Sun is north of the Celestial Equator 22. If you know the value of (m – M) for a star, then you can determine A. the spectral class of the star. B. the star’s distance. ...
... B. due to atmospheric refraction C. due to atmospheric reflection D. because in two years there will be a leap year E. because the Sun is north of the Celestial Equator 22. If you know the value of (m – M) for a star, then you can determine A. the spectral class of the star. B. the star’s distance. ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.