Star Formation
... Massive newborn stars are indicated by the arrows. Note that some (2, 3, & 4) are hidden to visible light. Arrows 1 and 5 indicate a compact cluster of bright young stars. Sources 6 & 7 may be due to outflow jets from the cluster 5. ...
... Massive newborn stars are indicated by the arrows. Note that some (2, 3, & 4) are hidden to visible light. Arrows 1 and 5 indicate a compact cluster of bright young stars. Sources 6 & 7 may be due to outflow jets from the cluster 5. ...
Understanding Planetary Motion
... Aberration of Starlight • The true path of light from a star to a planet is in a straight line, however, due to the motion of a planet it appears as if starlight bends into a planet. This makes it seem as if the light is originating from a different location. – This is similar to driving in the sno ...
... Aberration of Starlight • The true path of light from a star to a planet is in a straight line, however, due to the motion of a planet it appears as if starlight bends into a planet. This makes it seem as if the light is originating from a different location. – This is similar to driving in the sno ...
3A8d
... (a) The maximum rate that a galaxy can convert gas into stars is set by the dynamical time of the system, i.e., the maximum rate would invoke conversion of the entire intial gas mass of the galaxy into stars in a free-fall time. Derive an expression for this maximal “Monolithic Collapse” star format ...
... (a) The maximum rate that a galaxy can convert gas into stars is set by the dynamical time of the system, i.e., the maximum rate would invoke conversion of the entire intial gas mass of the galaxy into stars in a free-fall time. Derive an expression for this maximal “Monolithic Collapse” star format ...
Section 2 Astronomy 100 Fall 2003 Hour Exam 1
... 28. According to modern theories, the most significant difference between the formation of the terrestrial and the large, outer planets is that A) both formed by accretion of rocky and icy planetesimals, but the terrestrial planets were close enough to the Sun that almost all of the ices escaped bac ...
... 28. According to modern theories, the most significant difference between the formation of the terrestrial and the large, outer planets is that A) both formed by accretion of rocky and icy planetesimals, but the terrestrial planets were close enough to the Sun that almost all of the ices escaped bac ...
What is a Hertzsprung
... – Normal stars that fuse H to He in their cores fall on the main sequence of an H-R diagram – A star’s mass determines its position along the main sequence (high-mass: luminous and blue; low-mass: faint and red) ...
... – Normal stars that fuse H to He in their cores fall on the main sequence of an H-R diagram – A star’s mass determines its position along the main sequence (high-mass: luminous and blue; low-mass: faint and red) ...
The correct answers are written in bold, italic and underlined. The
... planetary nebula phase. • a white dwarf star that has cooled to a low temperature over its long lifetime. Stars with masses less that 8% of that of the Sun remain as long-lived, dim brown objects, never brightening like a main-sequence star. 15. Why have few, if any, stars with greater than about 12 ...
... planetary nebula phase. • a white dwarf star that has cooled to a low temperature over its long lifetime. Stars with masses less that 8% of that of the Sun remain as long-lived, dim brown objects, never brightening like a main-sequence star. 15. Why have few, if any, stars with greater than about 12 ...
chap18_f04_probs
... = 103 atoms / meter3 1.7 10-27 kilogram per atom volume of Earth = 1.7 10-24 kilogram / meter3 4/3 R3 = 1.7 10-24 kilogram / meter3 13.51 (6.4 106 meters)3 = 1.7 10-24 kilogram / meter3 1.1 1021 meters3 = 0.0019 kilograms or 1.9 grams (!) A very small mass. PROBLEM 1 ...
... = 103 atoms / meter3 1.7 10-27 kilogram per atom volume of Earth = 1.7 10-24 kilogram / meter3 4/3 R3 = 1.7 10-24 kilogram / meter3 13.51 (6.4 106 meters)3 = 1.7 10-24 kilogram / meter3 1.1 1021 meters3 = 0.0019 kilograms or 1.9 grams (!) A very small mass. PROBLEM 1 ...
A-105 Homework 1
... 13. (2 pts.) In the TV show Star Trek, the fastest the Enterprise can travel is warp 9 (1516 times the speed of light). How long would it take to travel from one end of the galaxy to the other moving at warp 9? What about from our solar system to the Galactic center? (Express your answers in the mos ...
... 13. (2 pts.) In the TV show Star Trek, the fastest the Enterprise can travel is warp 9 (1516 times the speed of light). How long would it take to travel from one end of the galaxy to the other moving at warp 9? What about from our solar system to the Galactic center? (Express your answers in the mos ...
Saturn - Otterbein University
... diameters >2500 km, largest: 5260 km • Medium moons: diameter 400-1600 km e.g. all of Uranus’ major moons ...
... diameters >2500 km, largest: 5260 km • Medium moons: diameter 400-1600 km e.g. all of Uranus’ major moons ...
Chapter 12 - Indiana State University
... Analyzing the HR Diagram • The Stefan-Boltzmann law is a key to understanding the H-R diagram – For stars of a given temperature, the larger the radius, the larger the luminosity – Therefore, as one moves up the H-R diagram, a star’s radius must become bigger – On the other hand, for a given lumino ...
... Analyzing the HR Diagram • The Stefan-Boltzmann law is a key to understanding the H-R diagram – For stars of a given temperature, the larger the radius, the larger the luminosity – Therefore, as one moves up the H-R diagram, a star’s radius must become bigger – On the other hand, for a given lumino ...
Practice Test 1. An object moving along the x axis is acted upon by a
... P should be directed upwards, not down. P should be perpendicular to the wall, not parallel to it. N should be down into the floor for f s to have the given direction. P is correct, but there should also be a force perpendicular to the wall. ...
... P should be directed upwards, not down. P should be perpendicular to the wall, not parallel to it. N should be down into the floor for f s to have the given direction. P is correct, but there should also be a force perpendicular to the wall. ...
mars, antares, the sting and more
... JAMES: NOW THAT WEVE INVESTIGATED THE HEART OF THE SCORPION, HOW ABOUT HIS TAIL? AT THE END OF THE FISHHOOK SHAPE, LOOK FOR TWO STARS THAT ARE VERY CLOSE TOGETHER. THESE ARE THE STARS SHAULA AND LESATH AND TOGETHER THEY ARE KNOWN AS, THE STING. DEAN: MAKES SENSE. ALTHOUGH THESE TWO STARS LOOK CLOSE ...
... JAMES: NOW THAT WEVE INVESTIGATED THE HEART OF THE SCORPION, HOW ABOUT HIS TAIL? AT THE END OF THE FISHHOOK SHAPE, LOOK FOR TWO STARS THAT ARE VERY CLOSE TOGETHER. THESE ARE THE STARS SHAULA AND LESATH AND TOGETHER THEY ARE KNOWN AS, THE STING. DEAN: MAKES SENSE. ALTHOUGH THESE TWO STARS LOOK CLOSE ...
Life Cycle of Our Sun
... Life Cycle of Our Sun About 4.6 billion years ago a great swirl of gas and dust some 15 billion miles across in this location in space and began to condense forming our Sun. Virtually 99.9 percent of the mass of our Solar System is the Sun. Our Sun has lived almost 5 billion years of its life an ...
... Life Cycle of Our Sun About 4.6 billion years ago a great swirl of gas and dust some 15 billion miles across in this location in space and began to condense forming our Sun. Virtually 99.9 percent of the mass of our Solar System is the Sun. Our Sun has lived almost 5 billion years of its life an ...
Our Solar System
... -Explain the theories for the origin of the solar system -Distinguish between questions that can be answered by science and those that cannot, and between problems that can be solved by technology and those that cannot with regards to solar system formation. -Estimate quantities of distances in pars ...
... -Explain the theories for the origin of the solar system -Distinguish between questions that can be answered by science and those that cannot, and between problems that can be solved by technology and those that cannot with regards to solar system formation. -Estimate quantities of distances in pars ...
Condensation of the Solar Nebula
... Accretion: Formation of the Terrestrial Planets Accretion The process by which small ‘seeds’ grew into planets. • Near the Sun, where temperature is high, only metals and rocks can condense. The small pieces of metals and rocks (the planetesimals) collide and stick together to form larger piece of ...
... Accretion: Formation of the Terrestrial Planets Accretion The process by which small ‘seeds’ grew into planets. • Near the Sun, where temperature is high, only metals and rocks can condense. The small pieces of metals and rocks (the planetesimals) collide and stick together to form larger piece of ...
Stellar Evolution: the Death of Stars
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
... 1. What kinds of nuclear reactions occur within a star like the Sun as it ages? 2. Where did the carbon atoms in our bodies come from? 3. What is a planetary nebula, and what does it have to do with planets? 4. What is a white dwarf star? 5. Why do high-mass stars go through more evolutionary stages ...
Your Star: _____________________ d = 1 / p
... Constructing a Temperature-Luminosity Diagram In this exercise, we will use the observed properties (parallax, apparent brightness, and spectrum peak) of some of the well-known stars to calculate, using the formulas and methods discussed in class, their intrinsic properties (temperature, luminosity ...
... Constructing a Temperature-Luminosity Diagram In this exercise, we will use the observed properties (parallax, apparent brightness, and spectrum peak) of some of the well-known stars to calculate, using the formulas and methods discussed in class, their intrinsic properties (temperature, luminosity ...
Earth in space
... Many people have never carefully observed the paths of Sun, Moon, stars or planets across the sky. A heliocentric model of the solar system is counterintuitive. Space is mind-boggling in size and composition. In pairs: Read and discuss pupil explanations of day & night. ...
... Many people have never carefully observed the paths of Sun, Moon, stars or planets across the sky. A heliocentric model of the solar system is counterintuitive. Space is mind-boggling in size and composition. In pairs: Read and discuss pupil explanations of day & night. ...
Universal Gravitation WS
... gravitational constant and relates F to the masses and distance as the constant π similarly relates the circumference of a circle to its diameter. By substituting changes in any of the variables into this equation, we can predict how the others change. For example, we can see how the force changes i ...
... gravitational constant and relates F to the masses and distance as the constant π similarly relates the circumference of a circle to its diameter. By substituting changes in any of the variables into this equation, we can predict how the others change. For example, we can see how the force changes i ...
Anomalous diffusion in generalised Ornstein
... If there are viscous forces acting, they cause a torque which speeds up material at higher radius, and slows material at smaller radius. Angular momentum is transferred from the centre to the outside of the disc. As the material at small radius slows, gravity draws it inwards. Viscous torque causes ...
... If there are viscous forces acting, they cause a torque which speeds up material at higher radius, and slows material at smaller radius. Angular momentum is transferred from the centre to the outside of the disc. As the material at small radius slows, gravity draws it inwards. Viscous torque causes ...
English Summary
... evolution is very short in comparison to the whole life of a star, it lasts only about 10 000 years. The nuclear reactions that have occurred in the interior of the star have resulted in a core of carbon and oxygen. The core of the star is not sufficiently hot to ignite nuclear reactions to transfor ...
... evolution is very short in comparison to the whole life of a star, it lasts only about 10 000 years. The nuclear reactions that have occurred in the interior of the star have resulted in a core of carbon and oxygen. The core of the star is not sufficiently hot to ignite nuclear reactions to transfor ...
The Bigger Picture
... • For the experiment with your finger in front of your nose, the baseline for the parallax effect is the distance between your eyes. • For measuring the parallax distance to stars, we use a baseline which is the diameter of the Earth’s ...
... • For the experiment with your finger in front of your nose, the baseline for the parallax effect is the distance between your eyes. • For measuring the parallax distance to stars, we use a baseline which is the diameter of the Earth’s ...
Aquarius (constellation)
Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for ""water-carrier"" or ""cup-carrier"", and its symbol is 20px (Unicode ♒), a representation of water.Aquarius is one of the oldest of the recognized constellations along the zodiac (the sun's apparent path). It was one of the 48 constellations listed by the 2nd century AD astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river.