The Edge of the Solar System The Oort Cloud
... 5 of these enter inner solar system per year o It takes thousands of years for them to orbit the sun ...
... 5 of these enter inner solar system per year o It takes thousands of years for them to orbit the sun ...
The Oort Cloud
... Pushed out by large molecular clouds, passing stars, or tidal interactions with Milky Way's disc 5 of these enter inner solar system per year It takes thousands of years for them to orbit the sun ...
... Pushed out by large molecular clouds, passing stars, or tidal interactions with Milky Way's disc 5 of these enter inner solar system per year It takes thousands of years for them to orbit the sun ...
Full Press Release - The Open University
... coming from both the massive star at the centre of the nebula and the newly born stars in the dense gas itself, and emits infrared light. The formation of a new generation of stars is now taking place within this compressed gas in these outer shell structures. The AKARI data reveals for the first ti ...
... coming from both the massive star at the centre of the nebula and the newly born stars in the dense gas itself, and emits infrared light. The formation of a new generation of stars is now taking place within this compressed gas in these outer shell structures. The AKARI data reveals for the first ti ...
Summer Triangle (Winter in the south hemisphere) Lyra
... accompany his words. Orpheus is said to have been so grateful for the instrument that he would often seek a high mountain before sunrise, to greet the sun god with his music as he rose in the morning. Orpheus' most renowned tale is one of the greatest Greek myths. The love story began with Orpheus' ...
... accompany his words. Orpheus is said to have been so grateful for the instrument that he would often seek a high mountain before sunrise, to greet the sun god with his music as he rose in the morning. Orpheus' most renowned tale is one of the greatest Greek myths. The love story began with Orpheus' ...
Supercomputer simulation provides missing link between turbulence, hypernovae and gamma-ray bursts
... sun, could amplify it a quadrillion (1015) times. One possibility is that energy stored in the rotation of the collapsed star could be transformed into magnetic energy. These strong magnetic fields may also be critical to help accelerate charged particles to a speed and energy able to generate a gam ...
... sun, could amplify it a quadrillion (1015) times. One possibility is that energy stored in the rotation of the collapsed star could be transformed into magnetic energy. These strong magnetic fields may also be critical to help accelerate charged particles to a speed and energy able to generate a gam ...
Star Maps and Constellations
... names are often related to the part of the "picture". •Alhena in Gemini means "mark", pertaining to a mark on the foot of Gemini twin Pollux. ...
... names are often related to the part of the "picture". •Alhena in Gemini means "mark", pertaining to a mark on the foot of Gemini twin Pollux. ...
SETI: First Considerations (PowerPoint)
... Numbers of Stars The Milky Way is forming about one new star a year, and an ‘average’ star (like the Sun) might last about ten billion years. In the ‘steady state,’ there will be at least several billion radiating stars out there. Stars much more massive than the Sun burn up their fuel very quickly, ...
... Numbers of Stars The Milky Way is forming about one new star a year, and an ‘average’ star (like the Sun) might last about ten billion years. In the ‘steady state,’ there will be at least several billion radiating stars out there. Stars much more massive than the Sun burn up their fuel very quickly, ...
Milky Way thin disk
... In a spherical potential angular momentum will be conserved; in an axisymmetric one, angular momentum in the z direction (Lz) will be conserved. This is likely what happens when a disk accretes gas from its surroundings ...
... In a spherical potential angular momentum will be conserved; in an axisymmetric one, angular momentum in the z direction (Lz) will be conserved. This is likely what happens when a disk accretes gas from its surroundings ...
teaching_sci_bib
... velocity to shear off our crust, strip off our heavy atmosphere, give us a thicker core and more radioactive material, and provide us with a life-sustaining ...
... velocity to shear off our crust, strip off our heavy atmosphere, give us a thicker core and more radioactive material, and provide us with a life-sustaining ...
Class Project Physics 1010-042, Physics 1010
... advanced than we are. If they are a lot more advanced than us they could probably travel to us. Why this is a paradox is because if those intelligent life forms are more advanced and can travel through space “where are they?” 2. List and briefly explain (like in a paragraph for each) 4 possible res ...
... advanced than we are. If they are a lot more advanced than us they could probably travel to us. Why this is a paradox is because if those intelligent life forms are more advanced and can travel through space “where are they?” 2. List and briefly explain (like in a paragraph for each) 4 possible res ...
AST101_lect_12
... • The lifetime of a star is proportional to the amount of fuel it has (mass) divided by the rate at which it expends the fuel (luminosity) • The lifetime τ ~ M/L • This is analogous to determining how often you have to refill the gas tank in your car. Time remaining is the amount of fuel you have (t ...
... • The lifetime of a star is proportional to the amount of fuel it has (mass) divided by the rate at which it expends the fuel (luminosity) • The lifetime τ ~ M/L • This is analogous to determining how often you have to refill the gas tank in your car. Time remaining is the amount of fuel you have (t ...
Heavy Metal from Ancient Superstars
... of Stars The chemical compositions of stars reflect the star formation histories of stellar populations The complexity of the Milky Way’s history is reflected in the compositions of its stars ...
... of Stars The chemical compositions of stars reflect the star formation histories of stellar populations The complexity of the Milky Way’s history is reflected in the compositions of its stars ...
Document
... A constellation is a group of stars that, when seen from Earth, form a pattern The stars in the sky are divided into 88 constellations (12 based on zodiac signs) The brightest constellation is Crux (the Southern Cross) The constellation with the greatest number of visible stars in it is Centaur ...
... A constellation is a group of stars that, when seen from Earth, form a pattern The stars in the sky are divided into 88 constellations (12 based on zodiac signs) The brightest constellation is Crux (the Southern Cross) The constellation with the greatest number of visible stars in it is Centaur ...
Beauty and the beast - University of Wyoming
... Turn north to see two constellations visible year-round. The first shape noticed is the Big Dipper. The Big Dipper is not a constellation – it is an asterism, which means it unofficially looks like something. It is part of the constellation Ursa Major, which is Latin for the “Big Bear” (which, unoff ...
... Turn north to see two constellations visible year-round. The first shape noticed is the Big Dipper. The Big Dipper is not a constellation – it is an asterism, which means it unofficially looks like something. It is part of the constellation Ursa Major, which is Latin for the “Big Bear” (which, unoff ...
Two Dissipating Exoplanet Atmospheres Taken from: Hubble
... easily lost in the glow of the much brighter stars they circle. Exoplanets were first detected by the small but recognizably cyclic gravitational tug they exert on their stars. Sensitive spectroscopy can measure the tiny changes such a planet induces in its star’s velocity. Once astronomers have est ...
... easily lost in the glow of the much brighter stars they circle. Exoplanets were first detected by the small but recognizably cyclic gravitational tug they exert on their stars. Sensitive spectroscopy can measure the tiny changes such a planet induces in its star’s velocity. Once astronomers have est ...
The Milky Way * A Classic Galaxy
... bright open cluster M23 has a Cepheid. As of 1999, 29 more clusters now known to have Cepheids. • Cepheid PL relation has much less noise if brightnesses measured in the Infrared, which is what is always done these days. • By “Cepheids” I mean “Classical Cepheids”. There are also “Type II Cepheids” ...
... bright open cluster M23 has a Cepheid. As of 1999, 29 more clusters now known to have Cepheids. • Cepheid PL relation has much less noise if brightnesses measured in the Infrared, which is what is always done these days. • By “Cepheids” I mean “Classical Cepheids”. There are also “Type II Cepheids” ...
Homework, August 29, 2002 AST110-6
... c. Chapter 5, Problem 23. If a distant galaxy has a substantial redshift (as viewed from our galaxy), then anyone living in that galaxy would see a substantial redshift in a spectrum of the Milky Way Galaxy. d. Chapter 5, Problem 28. An observatory on the Moon’s surface could have telescopes monitor ...
... c. Chapter 5, Problem 23. If a distant galaxy has a substantial redshift (as viewed from our galaxy), then anyone living in that galaxy would see a substantial redshift in a spectrum of the Milky Way Galaxy. d. Chapter 5, Problem 28. An observatory on the Moon’s surface could have telescopes monitor ...
What Is a Light-year?
... next closest star to Earth is Proxima Centauri. Proxima Centauri is 40 trillion (40,000,000,000,000) kilometers from Earth. (4) a (5) number is difficult to understand and use in calculations. For (6) reason, • astronomers use a different (7) of (8) when they talk about distances between stars. In o ...
... next closest star to Earth is Proxima Centauri. Proxima Centauri is 40 trillion (40,000,000,000,000) kilometers from Earth. (4) a (5) number is difficult to understand and use in calculations. For (6) reason, • astronomers use a different (7) of (8) when they talk about distances between stars. In o ...
The Solar System and Beyond
... Objective 1: Compare the size and distance of objects within systems in the universe. c. Compare the size of the Solar System to the size of the Milky Way galaxy. ...
... Objective 1: Compare the size and distance of objects within systems in the universe. c. Compare the size of the Solar System to the size of the Milky Way galaxy. ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.