Bright stars and faint stars: the stellar magnitude system Magnitudes
... Absolute Magnitude: a measure of the intrinsic brilliance of a star • Pick a star (any star) • Imagine moving it to a distance of 10 parsecs • The apparent magnitude it would have is its absolute magnitude • The absolute magnitude is a distanceindependent quantity • Look at Appendix 12 and Appendix ...
... Absolute Magnitude: a measure of the intrinsic brilliance of a star • Pick a star (any star) • Imagine moving it to a distance of 10 parsecs • The apparent magnitude it would have is its absolute magnitude • The absolute magnitude is a distanceindependent quantity • Look at Appendix 12 and Appendix ...
Astro 1 & 100 Levine Homework Stars Name:____________________________
... 1. Rank these stars in order of luminosity, from brightest to dimmest : Brightest ______ ______ ______ ______ ______ ______ Dimmest Or, all have the same luminosity ______________ 2. Rank these stars in order of apparent brightness, from brightest to dimmest: Brightest ______ ______ ______ ______ __ ...
... 1. Rank these stars in order of luminosity, from brightest to dimmest : Brightest ______ ______ ______ ______ ______ ______ Dimmest Or, all have the same luminosity ______________ 2. Rank these stars in order of apparent brightness, from brightest to dimmest: Brightest ______ ______ ______ ______ __ ...
Word Pro - Smvocab
... Vocabulary List Angular Diameter - the apparent size of celestial objects measured by angle in degrees. Apogee - that point in the orbit of the moon or a planet which is most distant from the earth. Aristotle - one of the world's greatest thinkers and scientific investigators from ancient Greece. As ...
... Vocabulary List Angular Diameter - the apparent size of celestial objects measured by angle in degrees. Apogee - that point in the orbit of the moon or a planet which is most distant from the earth. Aristotle - one of the world's greatest thinkers and scientific investigators from ancient Greece. As ...
STARS Chapter 8 Section 1
... A star is made up of different elements in the form of gases. The inner layers are very dense and hot. But the outer layers are made up of cool gases. Elements in a star’s atmosphere absorb some of the light that radiates from the star. Because different elements absorb different wavelengths of lig ...
... A star is made up of different elements in the form of gases. The inner layers are very dense and hot. But the outer layers are made up of cool gases. Elements in a star’s atmosphere absorb some of the light that radiates from the star. Because different elements absorb different wavelengths of lig ...
Stars
... Stellar Evolution (How stars form) In outer space there is plenty of material, but it is very spaced out. Over time, gravity begins to pull this material together. Hydrogen is the most common element that gets pulled in by gravity. Eventually large, dark, cool clouds of matter form. Because of the ...
... Stellar Evolution (How stars form) In outer space there is plenty of material, but it is very spaced out. Over time, gravity begins to pull this material together. Hydrogen is the most common element that gets pulled in by gravity. Eventually large, dark, cool clouds of matter form. Because of the ...
The_Birth_of_a_Star
... • If the star is very large, it burns through the hydrogen quickly; helium fuses to make carbon, and as the helium is exhausted the collapse of the core generates enough energy to fuse the carbon forming iron. • Eventually the star collapses, as the electrons are trapped inside the core, forming ne ...
... • If the star is very large, it burns through the hydrogen quickly; helium fuses to make carbon, and as the helium is exhausted the collapse of the core generates enough energy to fuse the carbon forming iron. • Eventually the star collapses, as the electrons are trapped inside the core, forming ne ...
The Life Cycle of a Star and the Hertzsprung
... lots of stars out there, so there are lots of dots. The position of each dot on the diagram tells us two things about each star: its luminosity (brightness) and its temperature. The majority of stars, including our Sun, are found along a region called the Main Sequence. Main Sequence stars vary wide ...
... lots of stars out there, so there are lots of dots. The position of each dot on the diagram tells us two things about each star: its luminosity (brightness) and its temperature. The majority of stars, including our Sun, are found along a region called the Main Sequence. Main Sequence stars vary wide ...
SSG Coordinators will be at the Cronan Ranch observing site at 5
... scopes in the 4” range under medium to high magnification may glimpse a faint dust lane and some surface mottling. Cassiopeia (S&T Pocket Sky Atlas – pg 1 – 3) This constellation is one of the most recognized in the sky due to its prominent M (or W) asterism. Cassiopeia is also a circumpolar constel ...
... scopes in the 4” range under medium to high magnification may glimpse a faint dust lane and some surface mottling. Cassiopeia (S&T Pocket Sky Atlas – pg 1 – 3) This constellation is one of the most recognized in the sky due to its prominent M (or W) asterism. Cassiopeia is also a circumpolar constel ...
Final Exam Review (Word doc)
... is caused by a) the density of the gas in the stellar atmosphere. b) the energy-level structure of the atom. c) the temperature of the stellar atmosphere. d) the Doppler shift. 29. A full moon can never rise at midnight. 30. From Earth, Mercury is difficult to see mostly because it always appears ne ...
... is caused by a) the density of the gas in the stellar atmosphere. b) the energy-level structure of the atom. c) the temperature of the stellar atmosphere. d) the Doppler shift. 29. A full moon can never rise at midnight. 30. From Earth, Mercury is difficult to see mostly because it always appears ne ...
The H-R Diagram
... The H-R Diagram The Herzsprung Russel Diagram (HRD) is a systematic way of arranging stellar data. It plots the Absolute Magnitude (MV) or Luminosity (L/L¤) versus the Spectral Type, Surface Temperature or Color. The brightest stars are at the top and the hottest stars at the left. The radius increa ...
... The H-R Diagram The Herzsprung Russel Diagram (HRD) is a systematic way of arranging stellar data. It plots the Absolute Magnitude (MV) or Luminosity (L/L¤) versus the Spectral Type, Surface Temperature or Color. The brightest stars are at the top and the hottest stars at the left. The radius increa ...
Mon Feb 13, 2012 JULES VERNE The French science fiction writer
... The astronomer and physicist Galileo Galilei was born on February 15 in the year 1564. Galileo did not invent the telescope, but when he heard of its invention, he built his own, and like other astronomers of the 17 th century, Galileo aimed his telescope at the sky and made some amazing discoveries ...
... The astronomer and physicist Galileo Galilei was born on February 15 in the year 1564. Galileo did not invent the telescope, but when he heard of its invention, he built his own, and like other astronomers of the 17 th century, Galileo aimed his telescope at the sky and made some amazing discoveries ...
Unit 60 to 79
... a. Have a companion star (be a member of a binary) b. Exceed its Chandrasekhar limit c. Have begun life as a high-mass star d. Continue the fusion cycle until its core is completely composed of iron 7) Which of the following events will not leave any remnant? a. Type I supernova b. Type II supernova ...
... a. Have a companion star (be a member of a binary) b. Exceed its Chandrasekhar limit c. Have begun life as a high-mass star d. Continue the fusion cycle until its core is completely composed of iron 7) Which of the following events will not leave any remnant? a. Type I supernova b. Type II supernova ...
Recap: High Mass Stars
... • Mass of star determines location on main sequence • Ranges in size from ½ Sun to 20 times the Sun’s size • Color depends on the surface temperature ...
... • Mass of star determines location on main sequence • Ranges in size from ½ Sun to 20 times the Sun’s size • Color depends on the surface temperature ...
Study Guide: Chapters 32-‐34 FROSH CHAPTER 32 1. What is
... 18. A star somewhat larger than our Sun produces more heat as it contracts. This star will then fuse _____ into heavier elements. ...
... 18. A star somewhat larger than our Sun produces more heat as it contracts. This star will then fuse _____ into heavier elements. ...
Planets and Stars Study Guide Test Date: ______ Vocabulary to
... 3. What does a “new moon” look like? When do we usually have one? A new moon is when no light is being reflected because the earth’s shadow is blocking the sun. It is going to look similar to a full moon, but not as bright. We usually see a full moon 2 weeks after a new moon. ...
... 3. What does a “new moon” look like? When do we usually have one? A new moon is when no light is being reflected because the earth’s shadow is blocking the sun. It is going to look similar to a full moon, but not as bright. We usually see a full moon 2 weeks after a new moon. ...
Practice questions for Stars File
... 1. Describe the difference in the stages of the life cycle for a large and massive star compared to an average star 2. Describe the fuel use changes from birth to death for a black hole 3. Describe the fuel use changes from birth to death for a neutron star 4. Explain how the energy changes are invo ...
... 1. Describe the difference in the stages of the life cycle for a large and massive star compared to an average star 2. Describe the fuel use changes from birth to death for a black hole 3. Describe the fuel use changes from birth to death for a neutron star 4. Explain how the energy changes are invo ...
Stars - TeacherWeb
... • Size • Stars vary in size • The sun’s radius( half of diameter) is approximately 695,000 km • Astronomers use what is called solar radii to compare other stars Average Radius of sun=1 (See page 91 in textbook for clarification) ...
... • Size • Stars vary in size • The sun’s radius( half of diameter) is approximately 695,000 km • Astronomers use what is called solar radii to compare other stars Average Radius of sun=1 (See page 91 in textbook for clarification) ...
30-2 Directed Reading
... c. the main-sequence stage d. the nebula stage _____ 16. A star that has the same mass as the sun’s mass a. stays on the main sequence for about 10 million years. b. stays on the main sequence for about 10 billion years. c. stays on the main sequence for about 14 billion years. d. stays on the main ...
... c. the main-sequence stage d. the nebula stage _____ 16. A star that has the same mass as the sun’s mass a. stays on the main sequence for about 10 million years. b. stays on the main sequence for about 10 billion years. c. stays on the main sequence for about 14 billion years. d. stays on the main ...
Practice Questions: This is a series of practice tests that you should
... 48. The science that deals with the study of the composition, distance, magnitude and motion of objects in space is called a. Astrology b. Geology c. Astronomy d. Cosmology 49. When scientists discus the “Big Bang’ theory of formation, they are talking about the a. Earth b. Universe c. Stars d. Gal ...
... 48. The science that deals with the study of the composition, distance, magnitude and motion of objects in space is called a. Astrology b. Geology c. Astronomy d. Cosmology 49. When scientists discus the “Big Bang’ theory of formation, they are talking about the a. Earth b. Universe c. Stars d. Gal ...
Ursa Minor
Ursa Minor (Latin: ""Smaller She-Bear"", contrasting with Ursa Major), also known as the Little Bear, is a constellation in the northern sky. Like the Great Bear, the tail of the Little Bear may also be seen as the handle of a ladle, hence the name Little Dipper. It was one of the 48 constellations listed by the 2nd-century astronomer Ptolemy, and remains one of the 88 modern constellations. Ursa Minor has traditionally been important for navigation, particularly by mariners, due to Polaris being the North Star.Polaris, the brightest star in the constellation, is a yellow-white supergiant and the brightest Cepheid variable star in the night sky, ranging from apparent magnitude 1.97 to 2.00. Beta Ursae Minoris, also known as Kochab, is an aging star that has swollen and cooled to become an orange giant with an apparent magnitude of 2.08, only slightly fainter than Polaris. Kochab and magnitude 3 Gamma Ursae Minoris have been called the ""guardians of the pole star"". Planets have been detected orbiting four of the stars, including Kochab. The constellation also contains an isolated neutron star—Calvera—and H1504+65, the hottest white dwarf yet discovered with a surface temperature of 200,000 K.