1 - Stellar Life Cycle
... usually shown on left-hand Y-axis Temperature/Color Spectral Class shown on X-axis ...
... usually shown on left-hand Y-axis Temperature/Color Spectral Class shown on X-axis ...
Sample multiple choice questions for Exam 2
... 1. Most of the bright stars in the sky are bright because they are close (within 10 light years) to our Sun. a) correct b) wrong: Most are intrinsically bright and lie far from the Sun. c) wrong: Close means closer than 1 parsec. d) wrong: This is true only for green stars. e) wrong: Both changes c) ...
... 1. Most of the bright stars in the sky are bright because they are close (within 10 light years) to our Sun. a) correct b) wrong: Most are intrinsically bright and lie far from the Sun. c) wrong: Close means closer than 1 parsec. d) wrong: This is true only for green stars. e) wrong: Both changes c) ...
The Big Dipper Constellation
... The Big Dipper What is a Constellation? From very early times, man has been fascinated by the stars. Early stargazers began naming stars. They also noticed patterns of stars that appeared night after night in the sky. These patterns or groupings of stars are called constellations. They also began to ...
... The Big Dipper What is a Constellation? From very early times, man has been fascinated by the stars. Early stargazers began naming stars. They also noticed patterns of stars that appeared night after night in the sky. These patterns or groupings of stars are called constellations. They also began to ...
The Temperatures of Stars
... Understanding Stellar Colors First hired by Pickering to be his housekeeper, Williamina Fleming was later made an assistant and eventually supervisor for the other women. Once the Draper survey began, Fleming was given the huge task of photographing, cataloging, and analyzing about 10,000 stars ove ...
... Understanding Stellar Colors First hired by Pickering to be his housekeeper, Williamina Fleming was later made an assistant and eventually supervisor for the other women. Once the Draper survey began, Fleming was given the huge task of photographing, cataloging, and analyzing about 10,000 stars ove ...
Messier Galaxies of #202541
... was incorrectly plotting M91. With all these distant smudges, he confusingly misplaced M91 by triangulating on his map from M58 instead of the correct M89. So, it’s quite understandable about observer’s trepidation when galaxy hunting in this area. But don’t let that stop you--you have better maps a ...
... was incorrectly plotting M91. With all these distant smudges, he confusingly misplaced M91 by triangulating on his map from M58 instead of the correct M89. So, it’s quite understandable about observer’s trepidation when galaxy hunting in this area. But don’t let that stop you--you have better maps a ...
Lab 8: Stellar Classification and the H
... classify stars. At first, spectra were divided into groups by general appearance; however, in the 1930’s and 1940’s, astronomers realized that spectral type was mainly determined by temperature instead of chemical composition. As a result, spectral types were refined and renamed with letters, leadin ...
... classify stars. At first, spectra were divided into groups by general appearance; however, in the 1930’s and 1940’s, astronomers realized that spectral type was mainly determined by temperature instead of chemical composition. As a result, spectral types were refined and renamed with letters, leadin ...
Module 6: “The Message of Starlight Assignment 9: Parallax, stellar
... 1. Open the file Nearby_stars_data.xls and make a plot of B-V versus Mv (absolute magnitude) for the stars in the file. To match the plots that astronomers make, please use Mv on the Y axis, with negative numbers increasing up (the magnitude scale is reversed: big numbers are fainter), and B-V on th ...
... 1. Open the file Nearby_stars_data.xls and make a plot of B-V versus Mv (absolute magnitude) for the stars in the file. To match the plots that astronomers make, please use Mv on the Y axis, with negative numbers increasing up (the magnitude scale is reversed: big numbers are fainter), and B-V on th ...
Sep 2017 - What`s Out Tonight?
... too faint to see with the eyes because it shines at well liked for its blue & gold colors. Ptolemaeus magnitude +11. The second closest star visible to Alphonsus the naked eye is Sirius at 8.6 ly followed by Epsilon Moon (e) Eridani at 10.5 ly and Procyon at 11.4 ly. There Tycho Starting from New Mo ...
... too faint to see with the eyes because it shines at well liked for its blue & gold colors. Ptolemaeus magnitude +11. The second closest star visible to Alphonsus the naked eye is Sirius at 8.6 ly followed by Epsilon Moon (e) Eridani at 10.5 ly and Procyon at 11.4 ly. There Tycho Starting from New Mo ...
word document - FacStaff Home Page for CBU
... In Section A we look at our own star, the sun. It is the closest, and so the most important star to us, and at the same time the easiest star to observe. By knowing something about the sun, we will have a standard by which we can compare other stars. In Section B we consider the properties of stars ...
... In Section A we look at our own star, the sun. It is the closest, and so the most important star to us, and at the same time the easiest star to observe. By knowing something about the sun, we will have a standard by which we can compare other stars. In Section B we consider the properties of stars ...
Stages of stars - University of Dayton
... >May remain on main sequence for up to 100 billion years >Never evolve to become bloated red giants >Remain as stable main sequence stars until they consume their hydrogen fuel and collapse into white dwarfs Death of Massive Stars: >Have relatively short life spans >Terminate in an explosion known a ...
... >May remain on main sequence for up to 100 billion years >Never evolve to become bloated red giants >Remain as stable main sequence stars until they consume their hydrogen fuel and collapse into white dwarfs Death of Massive Stars: >Have relatively short life spans >Terminate in an explosion known a ...
Characterizing Stars - Department of Physics and Astronomy
... 1. How far away are the stars? 2. What evidence do astronomers have that the Sun is a typical star? 3. What is meant by a “first-magnitude” or “second magnitude” star? 4. Why are some stars red and others blue? 5. What are the stars made of? 6. As stars go, is our Sun especially large or small? 7. W ...
... 1. How far away are the stars? 2. What evidence do astronomers have that the Sun is a typical star? 3. What is meant by a “first-magnitude” or “second magnitude” star? 4. Why are some stars red and others blue? 5. What are the stars made of? 6. As stars go, is our Sun especially large or small? 7. W ...
Beyond the Solar System Homework for Geology 8
... 12. The cluster of 20 or so galaxies to which our galaxy belongs. 13. The distance light travels in a year, about 6 trillion miles. 14. This type of matter is incomprehensibly dense material formed when stars collapse and form a white dwarf. 16. This theory proposes that the universe originated as a ...
... 12. The cluster of 20 or so galaxies to which our galaxy belongs. 13. The distance light travels in a year, about 6 trillion miles. 14. This type of matter is incomprehensibly dense material formed when stars collapse and form a white dwarf. 16. This theory proposes that the universe originated as a ...
Life Cycles of Stars
... • Can’t Build Beyond Fe by Adding Protons – Repulsion of nuclei = Charge1 x Charge2 – He + C = O: Repulsion = 2 x 6 = 12 – Fe + p = Co: Repulsion = 26 x 1 = 26 ...
... • Can’t Build Beyond Fe by Adding Protons – Repulsion of nuclei = Charge1 x Charge2 – He + C = O: Repulsion = 2 x 6 = 12 – Fe + p = Co: Repulsion = 26 x 1 = 26 ...
Presentation for perspective graduate students 2006
... temperature? The surface temperature of the Sun is 5800K. A.7220 K B.6650 K C.4660 K D.3610 K ...
... temperature? The surface temperature of the Sun is 5800K. A.7220 K B.6650 K C.4660 K D.3610 K ...
Astronomy 1 – Winter 2011
... temperature? The surface temperature of the Sun is 5800K. A. 7220 K B. 6650 K C. 4660 K D. 3610 K ...
... temperature? The surface temperature of the Sun is 5800K. A. 7220 K B. 6650 K C. 4660 K D. 3610 K ...
Classifying Stars (pages 753–754) Key Concept: Characteristics
... Classifying Stars (pages 753–754) Key Concept: Characteristics used to classify stars include color, temperature, size, composition, and brightness. ...
... Classifying Stars (pages 753–754) Key Concept: Characteristics used to classify stars include color, temperature, size, composition, and brightness. ...
PHYSICS 113 Practice Questions #2
... c. whether it is loca ted on the o uter regions o r the central reg ions of the mo lecular cloud that gave it birth d. the speed and direction of its rotation e. the size of the d isk around it 15. Why do all stars spend most of their lives on the main sequence? a. because the neutrinos created insi ...
... c. whether it is loca ted on the o uter regions o r the central reg ions of the mo lecular cloud that gave it birth d. the speed and direction of its rotation e. the size of the d isk around it 15. Why do all stars spend most of their lives on the main sequence? a. because the neutrinos created insi ...
Starlight & Stars - Wayne State University Physics and Astronomy
... The Doppler effect doesn’t affect the overall color of an object, unless it is moving at a significant fraction of the speed of light (VERY fast!) For an object moving toward us, the red colors will be shifted to the orange and the near-infrared will be shifted to the red, etc. All of the colors shi ...
... The Doppler effect doesn’t affect the overall color of an object, unless it is moving at a significant fraction of the speed of light (VERY fast!) For an object moving toward us, the red colors will be shifted to the orange and the near-infrared will be shifted to the red, etc. All of the colors shi ...
HR Diagram
... 4. How many of the stars in table 10.1 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ How many of the stars in table 10.2 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ ...
... 4. How many of the stars in table 10.1 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ How many of the stars in table 10.2 are hotter than the Sun (spectral classes O,B,A,F)? If double star both must be considered. # = __________ ...
Document
... spiral galaxy – 1000,000 light years wide – 10,000 light years thick at the centre – has three distinct spiral arms - Sun is positioned in one of these arms about two-thirds of the way from the galactic center, at a distance of about 30,000 lightyears The Andromeda Galaxy, M31, is the nearest majo ...
... spiral galaxy – 1000,000 light years wide – 10,000 light years thick at the centre – has three distinct spiral arms - Sun is positioned in one of these arms about two-thirds of the way from the galactic center, at a distance of about 30,000 lightyears The Andromeda Galaxy, M31, is the nearest majo ...
Magnitude Scale and Distance Measurements
... and this give us a way to find the relative intensities of any two stars, based on their apparent magnitudes. Try a few examples: 1. The apparent magnitude of Spica is +0.98, and the apparent magnitude of Sirius A is -1.44. How many times brighter is Sirius A than Spica? 2. The apparent magnitude of ...
... and this give us a way to find the relative intensities of any two stars, based on their apparent magnitudes. Try a few examples: 1. The apparent magnitude of Spica is +0.98, and the apparent magnitude of Sirius A is -1.44. How many times brighter is Sirius A than Spica? 2. The apparent magnitude of ...
AST101_lect_12
... • Most stars are on the main sequence. – Stars spend most of their life on the main sequence – Most stars are faint and red • Giants and supergiants are visible from great distances. – Giants and supergiants are rare. ...
... • Most stars are on the main sequence. – Stars spend most of their life on the main sequence – Most stars are faint and red • Giants and supergiants are visible from great distances. – Giants and supergiants are rare. ...
Star A
... In a double-line spectroscopic binary, two distinct sets of spectral lines—one for each component star—shift back and forth as the stars move. Because we see particular lines alternately approaching and receding, we know that the objects emitting the lines are in orbit. Media Clip In the more commo ...
... In a double-line spectroscopic binary, two distinct sets of spectral lines—one for each component star—shift back and forth as the stars move. Because we see particular lines alternately approaching and receding, we know that the objects emitting the lines are in orbit. Media Clip In the more commo ...
The Night Sky May 2016 - Bridgend Astronomical Society
... the stars Upsilon and Iota Leonis. M95 is a barred spiral of type SBb. It lies at a distance of 38 million light years and is magnitude 9.7. M96, a type Sa galaxy, is slightly further away at 41 million light years, but a little brighter with a magnitude of 9.2. Both are members of the Leo I group o ...
... the stars Upsilon and Iota Leonis. M95 is a barred spiral of type SBb. It lies at a distance of 38 million light years and is magnitude 9.7. M96, a type Sa galaxy, is slightly further away at 41 million light years, but a little brighter with a magnitude of 9.2. Both are members of the Leo I group o ...
January 2013 - astronomy for beginners
... bit further to the left (east) and at the end of the month they will be further to the right (west). Dominating the sky at this time of the year is the beautiful and very interesting constellation of Orion (The Hunter). The distinct line of three stars that represent Orion’s Belt are easily recognis ...
... bit further to the left (east) and at the end of the month they will be further to the right (west). Dominating the sky at this time of the year is the beautiful and very interesting constellation of Orion (The Hunter). The distinct line of three stars that represent Orion’s Belt are easily recognis ...
Canis Minor
Canis Minor /ˌkeɪnɨs ˈmaɪnər/ is a small constellation in the northern celestial hemisphere. In the second century, it was included as an asterism, or pattern, of two stars in Ptolemy's 48 constellations, and it is counted among the 88 modern constellations. Its name is Latin for ""lesser dog"", in contrast to Canis Major, the ""greater dog""; both figures are commonly represented as following the constellation of Orion the hunter.Canis Minor contains only two stars brighter than the fourth magnitude, Procyon (Alpha Canis Minoris), with a magnitude of 0.34, and Gomeisa (Beta Canis Minoris), with a magnitude of 2.9. The constellation's dimmer stars were noted by Johann Bayer, who named eight stars including Alpha and Beta, and John Flamsteed, who numbered fourteen. Procyon is the seventh-brightest star in the night sky, as well as one of the closest. A yellow-white main sequence star, it has a white dwarf companion. Gomeisa is a blue-white main sequence star. Luyten's Star is a ninth-magnitude red dwarf and the Solar System's next closest stellar neighbour in the constellation after Procyon. The fourth-magnitude HD 66141, which has evolved into an orange giant towards the end of its life cycle, was discovered to have a planet in 2012. There are two faint deep sky objects within the constellation's borders. The 11 Canis-Minorids are a meteor shower that can be seen in early December.