STARS Chapter 8 Section 1
... astronomers can tell what elements a star is made of from the light they observe from the star. This is called the spectrum. ...
... astronomers can tell what elements a star is made of from the light they observe from the star. This is called the spectrum. ...
Today`s Powerpoint
... fast depends on mass of H available and rate of fusion. Mass of H in core depends on mass of star. Fusion rate is related to luminosity (fusion reactions make the radiation energy). ...
... fast depends on mass of H available and rate of fusion. Mass of H in core depends on mass of star. Fusion rate is related to luminosity (fusion reactions make the radiation energy). ...
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... A large percentage of stars are part of systems with at least two stars Binary star systems are very important in astrophysics, because observing their mutual orbits allows their mass to ...
... A large percentage of stars are part of systems with at least two stars Binary star systems are very important in astrophysics, because observing their mutual orbits allows their mass to ...
Volume 20 Number 10 September 2012
... Northeast. This shower is not the same as the spectacular Perseids shower which peaks in mid-August and is one of the year's highlights. They both appear to radiate from the same constellation but are not related - they were formed by different comets. September has five minor showers with three or ...
... Northeast. This shower is not the same as the spectacular Perseids shower which peaks in mid-August and is one of the year's highlights. They both appear to radiate from the same constellation but are not related - they were formed by different comets. September has five minor showers with three or ...
Stars and Stellar Evolution
... of star if I was a distance of 32.6 light-years Ex: Sun = apparent magnitude: -26.7, absolute magnitude: 5 More negative = brighter, more positive = dimmer ...
... of star if I was a distance of 32.6 light-years Ex: Sun = apparent magnitude: -26.7, absolute magnitude: 5 More negative = brighter, more positive = dimmer ...
Star Formation: Interstellar Gas and Dust
... What types of planets are out there? • Current search methods Î easiest to detect giant planets close to parent star. • But…why do giant planets exist at less than 1 AU? – spiraling into the star, as a result of friction. ...
... What types of planets are out there? • Current search methods Î easiest to detect giant planets close to parent star. • But…why do giant planets exist at less than 1 AU? – spiraling into the star, as a result of friction. ...
1 Correct responses in BOLDFACE. 1. Henrietta Leavitt`s period
... b. it allowed the luminosity of these stars to be determined based on intrinsic properties, and thus their distances from their apparent brightnesses c. it allowed the astronomers of her time to test their models for the interiors of these stars, to see if they were made of hydrogen d. it explained ...
... b. it allowed the luminosity of these stars to be determined based on intrinsic properties, and thus their distances from their apparent brightnesses c. it allowed the astronomers of her time to test their models for the interiors of these stars, to see if they were made of hydrogen d. it explained ...
©M. Rieke 1 Correct responses in BOLDFACE. 1. Why did
... b. it allowed the luminosity of these stars to be determined based on intrinsic properties, and thus their distances from their apparent brightnesses c. it allowed the astronomers of her time to test their models for the interiors of these stars, to see if they were made of hydrogen d. it explained ...
... b. it allowed the luminosity of these stars to be determined based on intrinsic properties, and thus their distances from their apparent brightnesses c. it allowed the astronomers of her time to test their models for the interiors of these stars, to see if they were made of hydrogen d. it explained ...
THE BIRTH AND DEATH OF A LOW/MEDIUM MASS STAR
... • THE STAGE WHEN A STAR IS IN IT’S “BEST” LIFE CYCLE • OUR SUN IS A MAIN SEQUENCE STAR • MAIN SEQUENCE STARS HAVE MOSTLY HYDROGEN. • THE HYDROGEN EXPLODES, GIVING OFF LIGHT AND HEAT • AS IT EXPLODES, THE HYDROGEN TURNS TO HELIUM. • HELIUM IS LIGHTER THAN HYDROGEN. • OUR SUN IS 4.6 BILLION YEARS OLD. ...
... • THE STAGE WHEN A STAR IS IN IT’S “BEST” LIFE CYCLE • OUR SUN IS A MAIN SEQUENCE STAR • MAIN SEQUENCE STARS HAVE MOSTLY HYDROGEN. • THE HYDROGEN EXPLODES, GIVING OFF LIGHT AND HEAT • AS IT EXPLODES, THE HYDROGEN TURNS TO HELIUM. • HELIUM IS LIGHTER THAN HYDROGEN. • OUR SUN IS 4.6 BILLION YEARS OLD. ...
Document
... _____ 7. A scientist can identify a star’s composition by looking at a. the star’s prism. b. the star’s continuous spectrum. c. the star’s absorption spectrum. d. the star’s color. _____ 8. The majority of stars in our galaxy are a. blue stars. b. white dwarfs. c.main-sequence stars. d. red giants. ...
... _____ 7. A scientist can identify a star’s composition by looking at a. the star’s prism. b. the star’s continuous spectrum. c. the star’s absorption spectrum. d. the star’s color. _____ 8. The majority of stars in our galaxy are a. blue stars. b. white dwarfs. c.main-sequence stars. d. red giants. ...
PDF version (two pages, including the full text)
... Alphard is one of the ‘bright giants’ in our neighborhood. But our ‘neighborhood’ is rather large. Alphard is 11 million times as far away from us as our own sun – so it looks a lot dimmer to us! To the south of Sirius, and nearly overhead, is Canopus, second brightest star in the sky, lighting the ...
... Alphard is one of the ‘bright giants’ in our neighborhood. But our ‘neighborhood’ is rather large. Alphard is 11 million times as far away from us as our own sun – so it looks a lot dimmer to us! To the south of Sirius, and nearly overhead, is Canopus, second brightest star in the sky, lighting the ...
Ch. 20 Classifying Objects in the Solar System
... 2. Objects which orbit the Sun, are nearly round and have sufficient gravity to “clear” their orbits are called _______________. The first four of these objects closest to the Sun are called the ___________ ____________ and are described as __________________, meaning rocky or Earth like. The four l ...
... 2. Objects which orbit the Sun, are nearly round and have sufficient gravity to “clear” their orbits are called _______________. The first four of these objects closest to the Sun are called the ___________ ____________ and are described as __________________, meaning rocky or Earth like. The four l ...
Stars - Moodle
... High mass stars • After the main sequence, stars with a mass much greater than the sun can burn and create larger and larger elements • When it gets to iron, it takes too much energy to create other elements so it ...
... High mass stars • After the main sequence, stars with a mass much greater than the sun can burn and create larger and larger elements • When it gets to iron, it takes too much energy to create other elements so it ...
Summer 2001 Day 07: Intro to Solar System
... (1) Analogy: if an AU was a foot, a parsec would be 39 miles (2) Analogy: if an Au was a foot, the Solar System would fit in a 40-foot circle (i.e. within the confines of this building), the NEAREST next star would be in CORTLAND! (3) A parsec is real big! (4) Miles – km analogy Practice Problem #1 ...
... (1) Analogy: if an AU was a foot, a parsec would be 39 miles (2) Analogy: if an Au was a foot, the Solar System would fit in a 40-foot circle (i.e. within the confines of this building), the NEAREST next star would be in CORTLAND! (3) A parsec is real big! (4) Miles – km analogy Practice Problem #1 ...
Astronomical Units and Light Years #2
... Light Years: Read and highlight the background information and answer the questions in complete sentences. Background Information: While the sun is often referred to as the most important star within our solar system, it is certainly not the only one. There are too many stars for us to even begin t ...
... Light Years: Read and highlight the background information and answer the questions in complete sentences. Background Information: While the sun is often referred to as the most important star within our solar system, it is certainly not the only one. There are too many stars for us to even begin t ...
Presentazione di PowerPoint - Istituto Nazionale di Fisica
... the condition is no longer satisfied: STRONG FIELD EFFECTS ...
... the condition is no longer satisfied: STRONG FIELD EFFECTS ...
GEARS Workshop Monday - Georgia Southern University
... what that mean • Test for understanding – ask where blue stars • Ask where red stars • Ask where luminous, cold, hot, less luminous ...
... what that mean • Test for understanding – ask where blue stars • Ask where red stars • Ask where luminous, cold, hot, less luminous ...
GEARS Workshop Monday - Georgia Southern University
... • Complete this exercise in groups of 2 to 3. • This is designed to be completed while you are discussing with other people. • This is not designed to be completed on your own. (despite the fact we keep assigning them as homework) ...
... • Complete this exercise in groups of 2 to 3. • This is designed to be completed while you are discussing with other people. • This is not designed to be completed on your own. (despite the fact we keep assigning them as homework) ...
The Stars
... the main sequence. • Generally, the hotter the star, the more luminous it will be. • The main sequence is not a straight line but a band. ...
... the main sequence. • Generally, the hotter the star, the more luminous it will be. • The main sequence is not a straight line but a band. ...
