Section 3: Three Periodicities - Wobble, Tilt, and
... hottest time of the year. This "double whammy" of the natural world resulted in both hotter summers and colder winters, combining the effect of aphelion (Earth's greatest distance from the Sun) with the chill of winter, and perihelion with the heat of summer. ...
... hottest time of the year. This "double whammy" of the natural world resulted in both hotter summers and colder winters, combining the effect of aphelion (Earth's greatest distance from the Sun) with the chill of winter, and perihelion with the heat of summer. ...
Violent Adolescent Planet Caught Infrared Handed
... that of the Solar System, leading to a different compositional evolution. The current data have allowed us to probe the star HD172555 and its disk to provide detailed information on the composition, location, and grain sizes. However, more work is required to have confidence that this represents a l ...
... that of the Solar System, leading to a different compositional evolution. The current data have allowed us to probe the star HD172555 and its disk to provide detailed information on the composition, location, and grain sizes. However, more work is required to have confidence that this represents a l ...
James`s 5-Page Final Exam Review
... 11) Latitude from North Star. The North celestial pole is 35 degrees above your northern horizon (as indicated by looking for the ‘north star’). This means… a. You’re at a latitude of 35 degrees North b. You’re at a longitude of 35 degrees East c. You’re at a latitude of 45 degrees South d. You’re a ...
... 11) Latitude from North Star. The North celestial pole is 35 degrees above your northern horizon (as indicated by looking for the ‘north star’). This means… a. You’re at a latitude of 35 degrees North b. You’re at a longitude of 35 degrees East c. You’re at a latitude of 45 degrees South d. You’re a ...
The Sun - MsLeeClass
... word strips and hang it on the front board Period 7 and P8: When done with this activity please read pg 414 and illustrate the size of the sun compared to other stars. Why does the sun seem so huge to us when in reality it is just an average size star? HOMEWORK Write 5 sentences about what you learn ...
... word strips and hang it on the front board Period 7 and P8: When done with this activity please read pg 414 and illustrate the size of the sun compared to other stars. Why does the sun seem so huge to us when in reality it is just an average size star? HOMEWORK Write 5 sentences about what you learn ...
The Hertzsprung-Russell Diagram
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
... 9. Label the following steps on your H-R diagram to show the series of changes that our sun has undergone since its formation 4.6 billion years ago. a. Originally, a big cloud of gas and dust called a nebula condensed to form a young, cool star called a red dwarf. In this first stage of life, our s ...
PPT file
... Eventually a red dwarf changes into a very hot, but small, dim white dwarf and quietly burns out ...
... Eventually a red dwarf changes into a very hot, but small, dim white dwarf and quietly burns out ...
Notes 1 - cloudfront.net
... ~ represents where stars used to be formed ~ a group of up to a few thousand stars that were formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other red nebula: ~ a nebula that had drifted away from the main body of the galaxy planetary nebula: ~ an emis ...
... ~ represents where stars used to be formed ~ a group of up to a few thousand stars that were formed from the same giant molecular cloud, and are still loosely gravitationally bound to each other red nebula: ~ a nebula that had drifted away from the main body of the galaxy planetary nebula: ~ an emis ...
Chap4-Timing
... Fate of planetary systems during the red giant phase. All planets within the final extent of the red giant envelope will be engulfed and migrate inwards. Planets further out will have greater chance of survival, migrating outwards as mass is lost from central star. In mass is loss instantane ...
... Fate of planetary systems during the red giant phase. All planets within the final extent of the red giant envelope will be engulfed and migrate inwards. Planets further out will have greater chance of survival, migrating outwards as mass is lost from central star. In mass is loss instantane ...
Astronomy 112: Physics of Stars Problem set 2: Due April 29 1. Time
... 8. Polytropes: Helium burning: We shall see later that after they finish central and shell hydrogen burning, many stars, including the sun, go on to ignite helium burning in their centers at a temperature ∼ 1.5×108 K. (aside: This temperature does not vary very much due to the extreme temperature se ...
... 8. Polytropes: Helium burning: We shall see later that after they finish central and shell hydrogen burning, many stars, including the sun, go on to ignite helium burning in their centers at a temperature ∼ 1.5×108 K. (aside: This temperature does not vary very much due to the extreme temperature se ...
Test 1 - Brock physics
... (c) red, because electrons recombine with protons and then make transitions to lower energy levels, emitting red light in the process. (d) dark, because they contain a significant amount of dark matter that can be detected using CCDs attached to radio telescopes. 7. Giant molecular clouds are relati ...
... (c) red, because electrons recombine with protons and then make transitions to lower energy levels, emitting red light in the process. (d) dark, because they contain a significant amount of dark matter that can be detected using CCDs attached to radio telescopes. 7. Giant molecular clouds are relati ...
the brochure
... System with temperatures reaching 450º Celsius. It is so hot, that it can melt lead. Venus also probably once had oceans but they all boiled away into the atmosphere. ...
... System with temperatures reaching 450º Celsius. It is so hot, that it can melt lead. Venus also probably once had oceans but they all boiled away into the atmosphere. ...
Deep Space Mystery Note Form 2
... medium is the gas and dust that exists between the stars within a galaxy. Astronomers have witnessed supernovae in many nearby galaxies; however, they are relatively rare events in our galaxy. In a galaxy like the Milky Way, it only occurs about once every 50 years. Supernovae have been recorded as ...
... medium is the gas and dust that exists between the stars within a galaxy. Astronomers have witnessed supernovae in many nearby galaxies; however, they are relatively rare events in our galaxy. In a galaxy like the Milky Way, it only occurs about once every 50 years. Supernovae have been recorded as ...
Powerpoint
... • Distance from the Sun to Pluto – 0.006 light years = 6 x 109 km • Diameter of the Sun – 7 x 105 km • You could fit 108 Suns in the distance between the Sun and its closest neighbour • There is a lot of empty space between stars (or between stellar systems) in galaxies ...
... • Distance from the Sun to Pluto – 0.006 light years = 6 x 109 km • Diameter of the Sun – 7 x 105 km • You could fit 108 Suns in the distance between the Sun and its closest neighbour • There is a lot of empty space between stars (or between stellar systems) in galaxies ...
ES 104 Midterm Exam Study Guide 1
... compositional differences between these 2 categories of planets – look over the table that you completed for the first homework activity. Also know why the Jovian planets have thicker atmospheres than the terrestrial planets and why some bodies such as Earth’s moon lack an atmosphere. Know how the o ...
... compositional differences between these 2 categories of planets – look over the table that you completed for the first homework activity. Also know why the Jovian planets have thicker atmospheres than the terrestrial planets and why some bodies such as Earth’s moon lack an atmosphere. Know how the o ...
Our Place in the Universe (Chapter 1) The Structure and Size of the
... The Sun is a star. The Moon only reflects light from the Sun, so it is not a star. Stars are large balls of hot gas, mostly hydrogen and helium The Sun generates heat and light by a process called nuclear fusion This is different from what happens in nuclear power stations ...
... The Sun is a star. The Moon only reflects light from the Sun, so it is not a star. Stars are large balls of hot gas, mostly hydrogen and helium The Sun generates heat and light by a process called nuclear fusion This is different from what happens in nuclear power stations ...
We see apparent retrograde motion when we pass by a
... • Their inability to observe stellar parallax was a major factor. ...
... • Their inability to observe stellar parallax was a major factor. ...
Downloaded - WordPress.com
... It is not large enough to sustain fusion reactions and is therefore not a star. If its physical characteristics are similar to those of the other known planets in our Solar System then it, too, should be considered a planet, as should all other similar objects. Naboo should not be considered a ...
... It is not large enough to sustain fusion reactions and is therefore not a star. If its physical characteristics are similar to those of the other known planets in our Solar System then it, too, should be considered a planet, as should all other similar objects. Naboo should not be considered a ...
Gravity - Indiana University Astronomy
... a) The temperature of the gas when atoms formed from free electrons and nuclei was about 3000K. What would be the wavelength at which a gas of that temperature would emit the most energy? (Hint: Remember Wien’s Law, λmax = 2.9 x 106 / T(K), with in nanometers.) ...
... a) The temperature of the gas when atoms formed from free electrons and nuclei was about 3000K. What would be the wavelength at which a gas of that temperature would emit the most energy? (Hint: Remember Wien’s Law, λmax = 2.9 x 106 / T(K), with in nanometers.) ...
Solutions
... giant. This is incorrect! The Sun will not be more massive; it doesn’t pull in any extra matter from anywhere. It will be bigger (larger volume), but will have at most the mass that it’s got now. (When it starts out as a red giant, it will only be very slightly less massive than it is now, due to th ...
... giant. This is incorrect! The Sun will not be more massive; it doesn’t pull in any extra matter from anywhere. It will be bigger (larger volume), but will have at most the mass that it’s got now. (When it starts out as a red giant, it will only be very slightly less massive than it is now, due to th ...
Teacher Guide Lives of Stars
... This activity is an opportunity for students to learn about the fundamental characterisitcs of stars and their life cycles. Students perform a play as members of an interview with several different stars. As the play progresses, students develop an understanding of the most fundamental concepts in s ...
... This activity is an opportunity for students to learn about the fundamental characterisitcs of stars and their life cycles. Students perform a play as members of an interview with several different stars. As the play progresses, students develop an understanding of the most fundamental concepts in s ...
Frostburg State Planetarium presents
... • Even the nearest planets appear as * (points) as we see them with our eyes; for even these objects very far away (if moon dist.=1, Venus dist.= 100) • To tell a planet from a star, all night stars twinkle and planets usually shine steady. • Also satellites (especially Space Station) shine steadily ...
... • Even the nearest planets appear as * (points) as we see them with our eyes; for even these objects very far away (if moon dist.=1, Venus dist.= 100) • To tell a planet from a star, all night stars twinkle and planets usually shine steady. • Also satellites (especially Space Station) shine steadily ...
Stargazing
... shine brighter and attract our attention more than their smaller neighbors do. Youmightwonder:whyaresomestarsbrighterthanothers? ...
... shine brighter and attract our attention more than their smaller neighbors do. Youmightwonder:whyaresomestarsbrighterthanothers? ...
Adella and Clyde ADELLA Sure good to see you home. Does all the
... And science? I will say, it’s not! ADELLA Keep right on thinking, Son. It seems to me your wheels are turning. You’re looking for a thing called light; Don’t forget in your head it’s burning. So how would you start finding a needle in a haystack? CLYDE I would search the planet’s likely path, and ho ...
... And science? I will say, it’s not! ADELLA Keep right on thinking, Son. It seems to me your wheels are turning. You’re looking for a thing called light; Don’t forget in your head it’s burning. So how would you start finding a needle in a haystack? CLYDE I would search the planet’s likely path, and ho ...
Astronomy Lecture 3b
... ___ 46. The atmospheric bands and zones of Saturn are ? than those on Jupiter. A.fainter B.more pronounced C.the atmospheric bands and zones of Saturn and Jupiter are equally well developed ___ 47. ? are small rocks in space. A.meteoroids B.meteorites C.meteors ...
... ___ 46. The atmospheric bands and zones of Saturn are ? than those on Jupiter. A.fainter B.more pronounced C.the atmospheric bands and zones of Saturn and Jupiter are equally well developed ___ 47. ? are small rocks in space. A.meteoroids B.meteorites C.meteors ...
Grade 9 Academic Science – Unit 3 Space
... 1. The baseline is perpendicular (i.e., 90O) to a line draw from the middle of AB to point C. Thus, the triangle ABC is symmetric. If we call the drawn line r, then AC = BC = r 2. The length of AB is less than r. This means that the angle between AC and AB is small. This is the parallax of C as view ...
... 1. The baseline is perpendicular (i.e., 90O) to a line draw from the middle of AB to point C. Thus, the triangle ABC is symmetric. If we call the drawn line r, then AC = BC = r 2. The length of AB is less than r. This means that the angle between AC and AB is small. This is the parallax of C as view ...
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.