File
... Halley's comet orbits the Sun every ____ years (1986) Meteors and Meteorites Earth is bombarded everyday by _____ and ______ fragments from space when one of the objects _______ up generating light to make it visible they are called _________ any of these fragments that are _______ enough or ...
... Halley's comet orbits the Sun every ____ years (1986) Meteors and Meteorites Earth is bombarded everyday by _____ and ______ fragments from space when one of the objects _______ up generating light to make it visible they are called _________ any of these fragments that are _______ enough or ...
notes
... from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth to prevent these effects? ...
... from our Sun (T = 5800 K) • We moved it to an M-type star (T = 3000 K) and placed it at the same distance that it currently is from our Sun • In each of these cases, where should we place the Earth to prevent these effects? ...
AN INTRODUCTION TO ASTRONOMY Dr. Uri Griv Department of Physics, Ben-Gurion University
... R is the radius of a star. On the other hand, L = f · (4πr2 ) → T = (f r2 /R2 σ)1/4 • The basic idea of UBV Photometry is to measure the proportions of radiant energy put out by a thermal body at ultraviolet (U), blue (B), and visual (V) wavelength • fV /fB = function of T fB /fU = function of T • I ...
... R is the radius of a star. On the other hand, L = f · (4πr2 ) → T = (f r2 /R2 σ)1/4 • The basic idea of UBV Photometry is to measure the proportions of radiant energy put out by a thermal body at ultraviolet (U), blue (B), and visual (V) wavelength • fV /fB = function of T fB /fU = function of T • I ...
STELLAR EVOLUTION
... the next fusion process, until they exhaust all fuel possibilities. The star then ends its existence as a star. A portion of the star’s mass remains as a dead star. The main sequence lifetime of stars depends on the star’s initial mass (the mass contained with the star when it formed). Solar-mass ...
... the next fusion process, until they exhaust all fuel possibilities. The star then ends its existence as a star. A portion of the star’s mass remains as a dead star. The main sequence lifetime of stars depends on the star’s initial mass (the mass contained with the star when it formed). Solar-mass ...
Characteristics of Stars
... Earth orbits around the Sun, relatively near-by stars appear to move with respect to the fixed, very distant stars (see the diagram below). This is the same thing that happens when you look at a close object with first one eye and then the other. For example, hold your thumb at the tip of your nose. ...
... Earth orbits around the Sun, relatively near-by stars appear to move with respect to the fixed, very distant stars (see the diagram below). This is the same thing that happens when you look at a close object with first one eye and then the other. For example, hold your thumb at the tip of your nose. ...
Science 8 Name: Unit 2 Astronomy Date: Period: LAB
... 1. Using the data in the table, plot the location of each star and label it with its name. 2. Complete the data table based on the location of the star on the HR Diagram. 3. Color the columns of the HR Diagram. 4. Answer the questions. Background: The Hertzsprung-Russell Diagram is actually an elabo ...
... 1. Using the data in the table, plot the location of each star and label it with its name. 2. Complete the data table based on the location of the star on the HR Diagram. 3. Color the columns of the HR Diagram. 4. Answer the questions. Background: The Hertzsprung-Russell Diagram is actually an elabo ...
Planetarium Activity 1 Learning to measure brightness and Limiting
... 1. You will be shown five popular constellations (Ursa Major, Cassiopeia, Leo, Ursa Minor and Orion) fix their position in the sky when the lights are off so that its approximated location can be found as the lights brighten. Use dots to Sketch the constellations on your worksheet and connect the st ...
... 1. You will be shown five popular constellations (Ursa Major, Cassiopeia, Leo, Ursa Minor and Orion) fix their position in the sky when the lights are off so that its approximated location can be found as the lights brighten. Use dots to Sketch the constellations on your worksheet and connect the st ...
Supernova’s
... and hydrogen to keep the star shinning, massive stars attain temperatures so great that Iron is produced in the core. • Iron is the most stable nuclei. • It is at this point where the core collapses and the imploding material produces a shock ...
... and hydrogen to keep the star shinning, massive stars attain temperatures so great that Iron is produced in the core. • Iron is the most stable nuclei. • It is at this point where the core collapses and the imploding material produces a shock ...
No Slide Title
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
... becomes so dense it collapses in on itself, becoming a single point of zero size! Its gravity is so strong that even light cannot escape from inside a certain boundary - the EVENT HORIZON. The star is now a BLACK HOLE ! Although we will never actually SEE a black hole, we can see their effects. A nu ...
Stars and their Properties
... Stars are so far away so it’s safe to look at them All stars are made up of 75% hydrogen and 25% helium Parallax – Apparent movement of an object based on your own movement You cannot see parallax with the naked eye LARGEST Parallax measurements are 1/3600th of a degree!! 1/60th of a degree = 1 arc ...
... Stars are so far away so it’s safe to look at them All stars are made up of 75% hydrogen and 25% helium Parallax – Apparent movement of an object based on your own movement You cannot see parallax with the naked eye LARGEST Parallax measurements are 1/3600th of a degree!! 1/60th of a degree = 1 arc ...
Mr. Scharff
... Introduction. The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their absolute magnitude, which is how bright they would appear to be if they were al the same distance away. Rather than speak of the ...
... Introduction. The Hertzsprung-Russell diagram is actually a graph that illustrates the relationship that exists between the average surface temperature of stars and their absolute magnitude, which is how bright they would appear to be if they were al the same distance away. Rather than speak of the ...
ASTR2050 Spring 2005 • In this class we will cover: Brief review
... Compare Kutner Fig.9.11 and associated discussion ...
... Compare Kutner Fig.9.11 and associated discussion ...
Astronomy 162 Lab 4: Stars
... properties you are actually trying to compare. Observational Astronomers tend to use an HR Diagram that plots Spectral Class (which is directly related to temperature) on the x-axis against Absolute Magnitude on the y-axis. From this diagram, astronomers can study the relationship between temperatu ...
... properties you are actually trying to compare. Observational Astronomers tend to use an HR Diagram that plots Spectral Class (which is directly related to temperature) on the x-axis against Absolute Magnitude on the y-axis. From this diagram, astronomers can study the relationship between temperatu ...
How Is a Star`s Color Related to Its Temperature?
... How Is a Star’s Color Related to Its Temperature? On a clear night you have surely noticed that some stars are brighter than others. But stars also have different colors. Rigel is blue, and Betelgeuse is red. Capella and our sun are yellow. In this activity you will make your own Hertzsprung-Russell ...
... How Is a Star’s Color Related to Its Temperature? On a clear night you have surely noticed that some stars are brighter than others. But stars also have different colors. Rigel is blue, and Betelgeuse is red. Capella and our sun are yellow. In this activity you will make your own Hertzsprung-Russell ...
MBuzaTalk2
... Normal stars are fighting with Hydrodynamic pressure, and radiation pressure. But in by-products we see both electron and neutron degeneracy’s, along with neutrino pressures. Where density is the dominating factor. Mainly, White Dwarfs, Neutron Stars, and Black holes. ...
... Normal stars are fighting with Hydrodynamic pressure, and radiation pressure. But in by-products we see both electron and neutron degeneracy’s, along with neutrino pressures. Where density is the dominating factor. Mainly, White Dwarfs, Neutron Stars, and Black holes. ...
STARS
... Most stars spend a majority of their life as a main sequence star As main sequence stars temperature increases, their luminosity also increases. These stars can range form blue to red in color (ESRT) ...
... Most stars spend a majority of their life as a main sequence star As main sequence stars temperature increases, their luminosity also increases. These stars can range form blue to red in color (ESRT) ...
Stars and Galaxies
... • A spectrum is used when describing the movement of stars. A spectrum is a band of colors formed when white light passes through a prism. • Every distant galaxy shows a red shift, indicating that the universe or star is expanding or moving away from Earth. A blue shift would indicate that the univ ...
... • A spectrum is used when describing the movement of stars. A spectrum is a band of colors formed when white light passes through a prism. • Every distant galaxy shows a red shift, indicating that the universe or star is expanding or moving away from Earth. A blue shift would indicate that the univ ...
STARS Chapter 8 Section 1
... • Parallax is the object’s apparent shift in motion when viewed from different locations. It is an optical effect. • Astronomers can measure parallax and use it to calculate exact distances to stars. • Does the man on the right(V2) see the moon as closer or farther away than the man on the left? • W ...
... • Parallax is the object’s apparent shift in motion when viewed from different locations. It is an optical effect. • Astronomers can measure parallax and use it to calculate exact distances to stars. • Does the man on the right(V2) see the moon as closer or farther away than the man on the left? • W ...
HR DIAGRAM REPORT FORM
... A. Plot an H-R diagram for the brightest stars from table 10.1. B. Plot an H-R diagram for the closest stars from table 10.2. 1. Which type of star is most common on each diagram? Choices are: Main Sequence (V), Giants (combine all I,II,III,IV types), White Dwarfs. Do not count Sun. Go to the tables ...
... A. Plot an H-R diagram for the brightest stars from table 10.1. B. Plot an H-R diagram for the closest stars from table 10.2. 1. Which type of star is most common on each diagram? Choices are: Main Sequence (V), Giants (combine all I,II,III,IV types), White Dwarfs. Do not count Sun. Go to the tables ...
H-R Diagram - SFA Physics
... Now plot all the stars from Table 7 onto Figure 3. Table 7 is a list of the 30 stars nearest the sun and the majority of these stars are considered to be the most common types of stars in the galaxy. Transfer the main sequence curve from Figure 1 to Figure 3. ...
... Now plot all the stars from Table 7 onto Figure 3. Table 7 is a list of the 30 stars nearest the sun and the majority of these stars are considered to be the most common types of stars in the galaxy. Transfer the main sequence curve from Figure 1 to Figure 3. ...
Star project
... • The protostar heats up so much and collects so much dust and gas that it releases a massive amount of gas in the form of a jet, called a bipolar. The dust eventually clears up, and you now have a young star. • As stars get older, they slowly expand. Eventually, when their core runs out of hydrogen ...
... • The protostar heats up so much and collects so much dust and gas that it releases a massive amount of gas in the form of a jet, called a bipolar. The dust eventually clears up, and you now have a young star. • As stars get older, they slowly expand. Eventually, when their core runs out of hydrogen ...
Star catalogue
A star catalogue, or star catalog, is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great many different star catalogues which have been produced for different purposes over the years, and this article covers only some of the more frequently quoted ones. Star catalogues were compiled by many different ancient peoples, including the Babylonians, Greeks, Chinese, Persians, and Arabs. Most modern catalogues are available in electronic format and can be freely downloaded from NASA's Astronomical Data Center.Completeness and accuracy is described by the weakest apparent magnitude V (largest number) and the accuracy of the positions.