Forming Planets
... Collisions and Accretion • From 10 to 100 million years, dust begins to stick together. • This is called accretion, and is aided by gravity. – Solid accretion toward star ...
... Collisions and Accretion • From 10 to 100 million years, dust begins to stick together. • This is called accretion, and is aided by gravity. – Solid accretion toward star ...
The perfect K-12 presentation ever (replace this with your title)
... Stars form through the collapse of stellar nebula The Life Cycle of Stars describes the evolutionary paths for stars. ...
... Stars form through the collapse of stellar nebula The Life Cycle of Stars describes the evolutionary paths for stars. ...
Galaxies
... • They often look like a star, due to their great distance (the rest of their galaxy structure can’t be seen). • Many quasars reveal more structure when viewed in radio wavelengths. ...
... • They often look like a star, due to their great distance (the rest of their galaxy structure can’t be seen). • Many quasars reveal more structure when viewed in radio wavelengths. ...
Life cycle of the Stars - Christos N. Hadjichristidis
... • Not even compacted neutrons can support weight of very massive stars. http://chandra.harvard.edu/resources/animatio ns/black_hole_sm.mov ...
... • Not even compacted neutrons can support weight of very massive stars. http://chandra.harvard.edu/resources/animatio ns/black_hole_sm.mov ...
document
... as a god. They thought a solar eclipse meant the god was angry with them. They believed the Sun god's anger could only be calmed with prayer and sacrifice. ...
... as a god. They thought a solar eclipse meant the god was angry with them. They believed the Sun god's anger could only be calmed with prayer and sacrifice. ...
PES 106 – General Astronomy II – Final Study Guide
... About 30% from Exam 2 – Measuring Stellar Properties; Stellar Evolution; Stellar Remnants About 30% from Exam 3 – The Milky Way; Galaxies About 10% will cover new material since the last exam: The Universe Life in the Universe Bring a 100-answer ScanTron sheet Expect about 90 questions on the exam ...
... About 30% from Exam 2 – Measuring Stellar Properties; Stellar Evolution; Stellar Remnants About 30% from Exam 3 – The Milky Way; Galaxies About 10% will cover new material since the last exam: The Universe Life in the Universe Bring a 100-answer ScanTron sheet Expect about 90 questions on the exam ...
10 Million light-years Million light
... tremendous distance we can see the entire Milky Way and other galaxies as well ... ...
... tremendous distance we can see the entire Milky Way and other galaxies as well ... ...
Getting to Know: Evidence for the Big Bang Theory
... other scientists have built on his work, collecting ...
... other scientists have built on his work, collecting ...
Lesson-5
... GRS 1915+105 and GRO J1655-40, in planetary nebulae, in symbiotic stars, and in many laser stars such as TON 202, 3C345, and Cygnus A. In 1837 Eta Carinae became one of the brightest stars in the sky. Even today it is the brightest object in the whole sky at infrared wavelengths of 20 microns. This ...
... GRS 1915+105 and GRO J1655-40, in planetary nebulae, in symbiotic stars, and in many laser stars such as TON 202, 3C345, and Cygnus A. In 1837 Eta Carinae became one of the brightest stars in the sky. Even today it is the brightest object in the whole sky at infrared wavelengths of 20 microns. This ...
Can We Make A Star?
... • They are made of cosmic dust, mostly hydrogen and helium • They are very unstable • The are very violent • They give off an extremely large amount of energy ...
... • They are made of cosmic dust, mostly hydrogen and helium • They are very unstable • The are very violent • They give off an extremely large amount of energy ...
19Nov_2014
... clocks more distant • The warping of space has been demonstrated many times, including by observations of the orbit of Mercury • The slowing of clocks has been demonstrated as well! ...
... clocks more distant • The warping of space has been demonstrated many times, including by observations of the orbit of Mercury • The slowing of clocks has been demonstrated as well! ...
MBuzaTalk2
... Star begins to fuse iron, which eats up energy. Causes the star to contract, gravity taking over Varying densities causes pressure build up, and then the ‘bounce’ (degenerate core), the star violently ejects large amounts of the star into space. ...
... Star begins to fuse iron, which eats up energy. Causes the star to contract, gravity taking over Varying densities causes pressure build up, and then the ‘bounce’ (degenerate core), the star violently ejects large amounts of the star into space. ...
previous mid-term () - Department of Physics and Astronomy
... 56. The planets formed into two main groups: the inner terrestrial planets and the outer Jovian planets. Which of the following is NOT characteristic of the formation sequence of the terrestrial planets? a. Heavy elements condense to form grains and then planetesimals. b. Planetesimals coalesce and ...
... 56. The planets formed into two main groups: the inner terrestrial planets and the outer Jovian planets. Which of the following is NOT characteristic of the formation sequence of the terrestrial planets? a. Heavy elements condense to form grains and then planetesimals. b. Planetesimals coalesce and ...
Science 9 – Space Exploration
... 10. When measuring the diameter of the sun, we use an indirect method, so that we can determine the diameter without actually measuring it directly. To calculate the accuracy of your measured value, this is calculated to show how far from the real value your measured value is … A. actual error B. e ...
... 10. When measuring the diameter of the sun, we use an indirect method, so that we can determine the diameter without actually measuring it directly. To calculate the accuracy of your measured value, this is calculated to show how far from the real value your measured value is … A. actual error B. e ...
ATNF Steering Committee – Astrophysics highlights
... metastable (J=K) inversion levels are excited by collisions and are much less affected by spontaneous emission than most other molecules. It is therefore an excellent interstellar thermometer. By comparing, for example, the (1,1) and (2,2) transitions at 23.65 and 23.68 GHz, the temperature distribu ...
... metastable (J=K) inversion levels are excited by collisions and are much less affected by spontaneous emission than most other molecules. It is therefore an excellent interstellar thermometer. By comparing, for example, the (1,1) and (2,2) transitions at 23.65 and 23.68 GHz, the temperature distribu ...
AS 701 - INTRODUCTION TO ASTROPHYSICS COURSE OVERVIEW - FALL 2013
... and gravitational physics, properties of stars, stellar structure, stellar evolution, dynamics of binary stars systems and star clusters, types of galaxies, galactic structure and dynamics, active galaxies and some cosmological topics. COURSE STRUCTURE AND PHILOSOPHY: The course is intended to provi ...
... and gravitational physics, properties of stars, stellar structure, stellar evolution, dynamics of binary stars systems and star clusters, types of galaxies, galactic structure and dynamics, active galaxies and some cosmological topics. COURSE STRUCTURE AND PHILOSOPHY: The course is intended to provi ...
2.5.8 the future of the universe
... Substituting H0 in (v = H0r) into the equations, we get a value ρc = 9.5 x 10-27 kg m-3 . ...
... Substituting H0 in (v = H0r) into the equations, we get a value ρc = 9.5 x 10-27 kg m-3 . ...
Star Formation
... • Interstellar gas, like the sun, is 74% hydrogen and 25% helium. • Interstellar dust, like clouds in the gas giants, are molecular carbon monoxide, ammonia, and water. • Traces of all other elements are present. ...
... • Interstellar gas, like the sun, is 74% hydrogen and 25% helium. • Interstellar dust, like clouds in the gas giants, are molecular carbon monoxide, ammonia, and water. • Traces of all other elements are present. ...
Cosmic Survey: What are Your Ideas About the Universe
... Many people, adults and students alike, are familiar with the names of objects in space, but have an incomplete mental model of where those objects are in space, their relative size and scale, and how they fit into the cosmic scheme of things. Understanding the sizes and distances of celestial objec ...
... Many people, adults and students alike, are familiar with the names of objects in space, but have an incomplete mental model of where those objects are in space, their relative size and scale, and how they fit into the cosmic scheme of things. Understanding the sizes and distances of celestial objec ...
Astronomical spectroscopy
Astronomical spectroscopy is the study of astronomy using the techniques of spectroscopy to measure the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other hot celestial objects. Spectroscopy can be used to derive many properties of distant stars and galaxies, such as their chemical composition, temperature, density, mass, distance, luminosity, and relative motion using Doppler shift measurements.