Objects in the Sky
... • GLE 0107.6.1 Compare and describe features of the day and night sky. • GLE 0107.6.2 Realize that the sun can only be seen during the day, while the moon can be seen at night and sometimes during the day. • 0107.6.2 Identify objects in the sky and describe their observable similarities and differen ...
... • GLE 0107.6.1 Compare and describe features of the day and night sky. • GLE 0107.6.2 Realize that the sun can only be seen during the day, while the moon can be seen at night and sometimes during the day. • 0107.6.2 Identify objects in the sky and describe their observable similarities and differen ...
To understand the deaths of stars and how it
... They don’t produce enough pressure to win out over gravity. • So, the atoms themselves collapse together. • The core basically becomes one giant atom (and the electrons fuse with the protons). • The energy to do this (remember it takes energy to break down atoms if they are smaller than iron) comes ...
... They don’t produce enough pressure to win out over gravity. • So, the atoms themselves collapse together. • The core basically becomes one giant atom (and the electrons fuse with the protons). • The energy to do this (remember it takes energy to break down atoms if they are smaller than iron) comes ...
The Family of Stars
... that a star would have if it were at a distance of 10 pc. If we know a star’s absolute magnitude, we can infer its distance by comparing absolute and apparent magnitudes. ...
... that a star would have if it were at a distance of 10 pc. If we know a star’s absolute magnitude, we can infer its distance by comparing absolute and apparent magnitudes. ...
Friday, Oct. 17
... aren’t hot enough inside to ignite nuclear fusion to replace the lost energy. As a result, they contract and heat up. Once they are hot enough inside (about 107 K) fusion can replace the energy they are losing. They are then in a stable thermal equilibrium; if fusion slowed down, they would contract ...
... aren’t hot enough inside to ignite nuclear fusion to replace the lost energy. As a result, they contract and heat up. Once they are hot enough inside (about 107 K) fusion can replace the energy they are losing. They are then in a stable thermal equilibrium; if fusion slowed down, they would contract ...
Bellringer - Madison County Schools
... kilometers times 4.5. That number won’t even fit in your calculator without the use of Scientific Notation. A light-year is a unit of DISTANCE, not time. You could also measure distance on Earth in terms of time. For example, if it takes you one hour to ride your bike to the mall, you could say the ...
... kilometers times 4.5. That number won’t even fit in your calculator without the use of Scientific Notation. A light-year is a unit of DISTANCE, not time. You could also measure distance on Earth in terms of time. For example, if it takes you one hour to ride your bike to the mall, you could say the ...
1) The following questions refer to the HR diagram
... E) It will slow down, the magnetic field will weaken, and it will become invisible 19) What happens when the gravity of a massive star is able to overcome neutron degeneracy pressure? A) The star explodes violently, leaving nothing behind. B) The core contracts and becomes a black hole. C) The core ...
... E) It will slow down, the magnetic field will weaken, and it will become invisible 19) What happens when the gravity of a massive star is able to overcome neutron degeneracy pressure? A) The star explodes violently, leaving nothing behind. B) The core contracts and becomes a black hole. C) The core ...
Our Galaxy, the Milky Way Galaxy
... Super bubbles will grow (and move more ISM) when the O and B stars go supernova Remember, the gas is still moving around randomly! o The ISM is frothy (some parts are thicker/denser than others via randomness) o Diffuse nebula – More DENSE area of ISM surrounded by a less dense area of ISM Cal ...
... Super bubbles will grow (and move more ISM) when the O and B stars go supernova Remember, the gas is still moving around randomly! o The ISM is frothy (some parts are thicker/denser than others via randomness) o Diffuse nebula – More DENSE area of ISM surrounded by a less dense area of ISM Cal ...
the universe notes - Cloverleaf Local Schools
... As the disk contracts, it spins faster and faster, funneling tons of interstellar dust toward the center, where temperatures reach 3000 degrees F or more - hot enough to melt metal and vaporize most solids. Dust particles were melted by the newly emerging disk of our sun, and then launched into sp ...
... As the disk contracts, it spins faster and faster, funneling tons of interstellar dust toward the center, where temperatures reach 3000 degrees F or more - hot enough to melt metal and vaporize most solids. Dust particles were melted by the newly emerging disk of our sun, and then launched into sp ...
Five Women at the Crossroads of Astronomy - Physics
... It seems to me that our forefathers and foremothers were perhaps luckier than we are because they lived outside enough to be much more familiar with the sky than are most people today. And I think that if somehow we could get the public to go on a very dark night out into the country and to look at ...
... It seems to me that our forefathers and foremothers were perhaps luckier than we are because they lived outside enough to be much more familiar with the sky than are most people today. And I think that if somehow we could get the public to go on a very dark night out into the country and to look at ...
The Hidden Lives of Galaxies NSTA 2001
... between the stars. This gas is also enriched by the expelled material. This compression starts the collapse of gas and dust to form new stars. ...
... between the stars. This gas is also enriched by the expelled material. This compression starts the collapse of gas and dust to form new stars. ...
Star Sizes
... eye it appears to be the fourth brightest due to the fact that Alpha Centauri and Proxima Centauri appear as one star. Arcturus is in the constellation Bootes but the easiest way to find this star is to follow the handle of the Big Dipper. The handle arc, and if you follow the arc of the handle the ...
... eye it appears to be the fourth brightest due to the fact that Alpha Centauri and Proxima Centauri appear as one star. Arcturus is in the constellation Bootes but the easiest way to find this star is to follow the handle of the Big Dipper. The handle arc, and if you follow the arc of the handle the ...
Stellar Evolution – Life of a Star
... Stellar evolution is very important. It is responsible for the production of most of the elements (all natural elements after H and He). As well, it aids in the formation of galaxies, new stars and ...
... Stellar evolution is very important. It is responsible for the production of most of the elements (all natural elements after H and He). As well, it aids in the formation of galaxies, new stars and ...
E.S. 14: The Universe Universe Formation: The Big Bang Theory
... C. Apparent magnitude is the amount of light received on Earth from a star. i. This depends on the luminosity and distance of a star from Earth. ii. Distances between stars and galaxies are measured in light-years. A light-year is the distance that light travels in one year. ...
... C. Apparent magnitude is the amount of light received on Earth from a star. i. This depends on the luminosity and distance of a star from Earth. ii. Distances between stars and galaxies are measured in light-years. A light-year is the distance that light travels in one year. ...
Part 2
... • Equivalent cycles involving Na and Mg exist and operate partially at higher temperature (≈ 5 · 107 K). • With increasing temperature, the CNO-cycle becomes more dominant. ...
... • Equivalent cycles involving Na and Mg exist and operate partially at higher temperature (≈ 5 · 107 K). • With increasing temperature, the CNO-cycle becomes more dominant. ...
Searching for planets around evolved stars with COROT
... accuracy better than 10 m/s is required to detect Jovian planets around dwarfs at about 5 AU. The situation is more complicated for giant stars, due to other mechanism that may also contribute for observed radial velocity variability. The COROT mission offers, certainly, an unique possibility for th ...
... accuracy better than 10 m/s is required to detect Jovian planets around dwarfs at about 5 AU. The situation is more complicated for giant stars, due to other mechanism that may also contribute for observed radial velocity variability. The COROT mission offers, certainly, an unique possibility for th ...
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 ...
7.4 Evolution on the Main-Sequence Main-sequence (m
... abundance decreases uniformly throughout the core. H is then essentially exhausted simultaneously throughout the central energy-producing region. In the final stages of H fusion, the whole star contracts in an attempt to maintain the energy production by increasing Tc . This produces a “left hook” i ...
... abundance decreases uniformly throughout the core. H is then essentially exhausted simultaneously throughout the central energy-producing region. In the final stages of H fusion, the whole star contracts in an attempt to maintain the energy production by increasing Tc . This produces a “left hook” i ...
AS1001:Extra-Galactic Astronomy Stars and Gas in Galaxies
... • Multiple images of some quasars. • Background sources are magnified and distorted by gravitational lensing as the light passes through an intervening galaxy or cluster of galaxies. ...
... • Multiple images of some quasars. • Background sources are magnified and distorted by gravitational lensing as the light passes through an intervening galaxy or cluster of galaxies. ...
1. Stellar Evolution – Notes Astronomers classify stars according to
... The inward collapse of material causes the center of the protostar to become very hot and dense. Once the central temperature and density reach critical levels, about 10 million Kelvin, nuclear fusion begins. During the fusion reaction, hydrogen atoms are combined together to form helium atoms. When ...
... The inward collapse of material causes the center of the protostar to become very hot and dense. Once the central temperature and density reach critical levels, about 10 million Kelvin, nuclear fusion begins. During the fusion reaction, hydrogen atoms are combined together to form helium atoms. When ...
The Milky Way - Montgomery College
... stationary shock waves. Stars and gas clouds orbit around the galactic center and cross spiral arms. Shocks initiate star formation. ...
... stationary shock waves. Stars and gas clouds orbit around the galactic center and cross spiral arms. Shocks initiate star formation. ...
Document
... • Mass of Sun • Radius of Earth • Hot as Sun’s core • A million times denser than lead • Slowly cool off ...
... • Mass of Sun • Radius of Earth • Hot as Sun’s core • A million times denser than lead • Slowly cool off ...
Star formation
Star formation is the process by which dense regions within molecular clouds in interstellar space, sometimes referred to as ""stellar nurseries"" or ""star-forming regions"", collapse to form stars. As a branch of astronomy, star formation includes the study of the interstellar medium (ISM) and giant molecular clouds (GMC) as precursors to the star formation process, and the study of protostars and young stellar objects as its immediate products. It is closely related to planet formation, another branch of astronomy. Star formation theory, as well as accounting for the formation of a single star, must also account for the statistics of binary stars and the initial mass function.In June 2015, astronomers reported evidence for Population III stars in the Cosmos Redshift 7 galaxy at z = 6.60. Such stars are likely to have existed in the very early universe (i.e., at high redshift), and may have started the production of chemical elements heavier than hydrogen that are needed for the later formation of planets and life as we know it.