Study Guide for 3RD Astronomy Exam
... Interpret stellar apparent magnitudes and their relationship to brightness Interpret stellar absolute magnitudes and their relationship to luminosity Solve problems relating to the relative brightness or luminosity of two stars given their m or M values. Determine the hottest and coolest stars from ...
... Interpret stellar apparent magnitudes and their relationship to brightness Interpret stellar absolute magnitudes and their relationship to luminosity Solve problems relating to the relative brightness or luminosity of two stars given their m or M values. Determine the hottest and coolest stars from ...
powerpoint - Physics @ IUPUI
... He bomb • When the He layer is about 1 m thick, the Helium ignites! • As we saw with the Helium flash for a star, this is a tricky time. • The burning He heats the surface of the star – which speeds up the production of Helium! • The result is a spectacular explosion (although not as spectacular as ...
... He bomb • When the He layer is about 1 m thick, the Helium ignites! • As we saw with the Helium flash for a star, this is a tricky time. • The burning He heats the surface of the star – which speeds up the production of Helium! • The result is a spectacular explosion (although not as spectacular as ...
There's more than one way to make a Blue Straggler 1
... The more massive star in this double-star system cannibalizes its partner, creating a single, even more massive star. ...
... The more massive star in this double-star system cannibalizes its partner, creating a single, even more massive star. ...
Stars - TeacherWeb
... – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
... – Very large, massive stars burn their fuel much faster than smaller stars – Their main sequence may last only a few hundred thousand years – Smaller stars will live on for billions of years because they burn their fuel much more slowly ...
Star Powerpoint notes
... The intensity of light emitted by three hypothetical stars is plotted against wavelength. The range of visible wavelengths is indicated. Where the peak of a star’s intensity curve lies relative to the visible light band determines the apparent color of its visible light. ...
... The intensity of light emitted by three hypothetical stars is plotted against wavelength. The range of visible wavelengths is indicated. Where the peak of a star’s intensity curve lies relative to the visible light band determines the apparent color of its visible light. ...
Galaxies and Stars
... Galaxy – a large system of stars held together by the same gravitational pull and separated from other large systems. ...
... Galaxy – a large system of stars held together by the same gravitational pull and separated from other large systems. ...
The Milky Way - Houston Community College System
... high-energy particles At this time, no star capable of producing a supernova is less than 50 ly away. The most massive star known (~ 100 solar masses) is ~ 25,000 ly from ...
... high-energy particles At this time, no star capable of producing a supernova is less than 50 ly away. The most massive star known (~ 100 solar masses) is ~ 25,000 ly from ...
Sample Assessment Items
... b. Mars is moving much faster than the stars. c. The stars are much farther away than Mars, so they appear not to move. d. Earth and the stars move in one direction, and Mars moves in the other. Answer: The stars in the night sky look as if they are slowly moving because _______________. a. the Eart ...
... b. Mars is moving much faster than the stars. c. The stars are much farther away than Mars, so they appear not to move. d. Earth and the stars move in one direction, and Mars moves in the other. Answer: The stars in the night sky look as if they are slowly moving because _______________. a. the Eart ...
Telescopes (continued). Properties of Stars.
... light as the Sun, but it is located 27,000 times further away from Earth than the Sun. Thus, its apparent brightness is 70 billion times less than that of the Sun. ...
... light as the Sun, but it is located 27,000 times further away from Earth than the Sun. Thus, its apparent brightness is 70 billion times less than that of the Sun. ...
Red Giants and White Dwarfs
... • Pulsations eject outer layers into space, gradually expanding into a “planetary nebula” • Eventually, energy production stops and a very dense “dead” star is left behind: a “white dwarf” ...
... • Pulsations eject outer layers into space, gradually expanding into a “planetary nebula” • Eventually, energy production stops and a very dense “dead” star is left behind: a “white dwarf” ...
Earth Science, 10th edition Chapter 23: Beyond Our Solar System I
... 1. Measuring a star's distance can be very difficult 2. Stellar parallax a. Used for measuring distance to a star b. Apparent shift in a star's position due to the orbital motion of Earth c. Measured as an angle d. Near stars have the largest parallax e. Largest parallax is less than one second of a ...
... 1. Measuring a star's distance can be very difficult 2. Stellar parallax a. Used for measuring distance to a star b. Apparent shift in a star's position due to the orbital motion of Earth c. Measured as an angle d. Near stars have the largest parallax e. Largest parallax is less than one second of a ...
measure
... nearest star (after the Sun) is about 40 million million km from the Earth. It takes light more than 4 years to travel this distance. If the distance from the Earth to the Sun were the width of this screen, the next nearest star would be in Rome. ...
... nearest star (after the Sun) is about 40 million million km from the Earth. It takes light more than 4 years to travel this distance. If the distance from the Earth to the Sun were the width of this screen, the next nearest star would be in Rome. ...
Binary Orbits
... Rotate around center of mass (barycenter) Period - days to years for normal stars Period hours and less – if system has a compact star ...
... Rotate around center of mass (barycenter) Period - days to years for normal stars Period hours and less – if system has a compact star ...
Energy Transport
... • Hydrogen atoms are ionized (bare nuclei) • Nuclei repel each other (Coulomb barrier) • High enough temperature means a small percentage will have a high enough energy to get close enough for strong interaction to occur (Maxwell distribution of velocities) • Sufficiently high pressure ensures that ...
... • Hydrogen atoms are ionized (bare nuclei) • Nuclei repel each other (Coulomb barrier) • High enough temperature means a small percentage will have a high enough energy to get close enough for strong interaction to occur (Maxwell distribution of velocities) • Sufficiently high pressure ensures that ...
chapter9
... absorbed by interstellar clouds Red light can more easily penetrate the cloud, but is still absorbed to some extent ...
... absorbed by interstellar clouds Red light can more easily penetrate the cloud, but is still absorbed to some extent ...
Chapter 30 Section 2 Handout
... Main-sequence stars that are more massive than the sun and become larger than regular giant stars. ...
... Main-sequence stars that are more massive than the sun and become larger than regular giant stars. ...
STUDY GUIDE FOR CHAPTER 1
... core and the generation of a shock wave. B. However the outer layers of the star are thought to have so much material in them that they can absorb the shock wave and the star does not blow up. C. The core consists of neutrons held up by neutron degeneracy pressure. D. As material from the outer laye ...
... core and the generation of a shock wave. B. However the outer layers of the star are thought to have so much material in them that they can absorb the shock wave and the star does not blow up. C. The core consists of neutrons held up by neutron degeneracy pressure. D. As material from the outer laye ...
September 3 and 5 slides
... • Why do the spirals avoid the plane of the Milky Way? • Harlow Shapley (Mt. Wilson Observatory; “establishment”) and Heber Curtis (Lick Observatory; “youngster”) • Curtis argued for the spirals being “island universes” • He who had seemingly the best arguments turned out to be ...
... • Why do the spirals avoid the plane of the Milky Way? • Harlow Shapley (Mt. Wilson Observatory; “establishment”) and Heber Curtis (Lick Observatory; “youngster”) • Curtis argued for the spirals being “island universes” • He who had seemingly the best arguments turned out to be ...
Background Information - Eu-Hou
... simplest indication of a star’s temperature is its colour. A star’s colour is simply a measure of the amount of light from the star in one filter compared to another. The most common colour system is B-V, which is simply an object’s magnitude as measured through the B filter, minus its magnitude as ...
... simplest indication of a star’s temperature is its colour. A star’s colour is simply a measure of the amount of light from the star in one filter compared to another. The most common colour system is B-V, which is simply an object’s magnitude as measured through the B filter, minus its magnitude as ...
Study Guide for Stars and Galaxies Quiz ANSWER KEY
... 2. List the three types of galaxies, and give properties of each. Be able to sketch each. a. elliptical contains old stars and little gas/dust b. irregular contains young stars and a lot of gas/dust c. spiral contains young stars and a lot of gas/dust 3. What is the name of the galaxy that ...
... 2. List the three types of galaxies, and give properties of each. Be able to sketch each. a. elliptical contains old stars and little gas/dust b. irregular contains young stars and a lot of gas/dust c. spiral contains young stars and a lot of gas/dust 3. What is the name of the galaxy that ...
Ordinary Stars - Edgewood High School
... If one star has a temperature of 10,000 K and another a temperature of 5,000 K, how much more energy does the hotter star put out? ...
... If one star has a temperature of 10,000 K and another a temperature of 5,000 K, how much more energy does the hotter star put out? ...
Constellations
... Asterism: Smaller groups of stars that form patterns within a constellation, from the Greek word aster, meaning star ...
... Asterism: Smaller groups of stars that form patterns within a constellation, from the Greek word aster, meaning star ...
Stellar kinematics
Stellar kinematics is the study of the movement of stars without needing to understand how they acquired their motion. This differs from stellar dynamics, which takes into account gravitational effects. The motion of a star relative to the Sun can provide useful information about the origin and age of a star, as well as the structure and evolution of the surrounding part of the Milky Way.In astronomy, it is widely accepted that most stars are born within molecular clouds known as stellar nurseries. The stars formed within such a cloud compose open clusters containing dozens to thousands of members. These clusters dissociate over time. Stars that separate themselves from the cluster's core are designated as members of the cluster's stellar association. If the remnant later drifts through the Milky Way as a coherent assemblage, then it is termed a moving group.