The Stars and the Solar System
... on a summer night. Others can only be seen on a winter night. This is because the Earth revolves around the sun. As it does, the part of the night sky that is visible from any one place changes. ...
... on a summer night. Others can only be seen on a winter night. This is because the Earth revolves around the sun. As it does, the part of the night sky that is visible from any one place changes. ...
Properties of Stars in general
... What does this tell us? • Most stars are seen to lie on the Main Sequence. – This is because stars spend the major part of their life in the region of the main sequence – During this period they are burning Hydrogen into Helium in their cores. – Their position in the main sequence is dependant on t ...
... What does this tell us? • Most stars are seen to lie on the Main Sequence. – This is because stars spend the major part of their life in the region of the main sequence – During this period they are burning Hydrogen into Helium in their cores. – Their position in the main sequence is dependant on t ...
The Copernican Model (1543)
... The inclination direction slowly changes The Precession Period is about 25,700 years (cf. Hipparchus) ...
... The inclination direction slowly changes The Precession Period is about 25,700 years (cf. Hipparchus) ...
Test 2 Review Topics
... 12. What is the most and least important function of an optical telescope? 13. What are the advantages of space based telescopes? 14. What type of telescope can be used during the day or through clouds? 15. What is an interferometer? 16. What is adaptive optics? Chapter 6: Atoms & Starlight 17. Diff ...
... 12. What is the most and least important function of an optical telescope? 13. What are the advantages of space based telescopes? 14. What type of telescope can be used during the day or through clouds? 15. What is an interferometer? 16. What is adaptive optics? Chapter 6: Atoms & Starlight 17. Diff ...
Astronomy 162 Lab 4: Stars
... groups: Giants and Super Giants at the top, a long line of Main Sequence stars in the middle, and White Dwarfs at the bottom. It turns out that Main Sequence stars are in the prime of their lives, those stars burning Hydrogen into Helium are found on the middle line. Giants and Super Giants are old ...
... groups: Giants and Super Giants at the top, a long line of Main Sequence stars in the middle, and White Dwarfs at the bottom. It turns out that Main Sequence stars are in the prime of their lives, those stars burning Hydrogen into Helium are found on the middle line. Giants and Super Giants are old ...
1 au d p = 1 au d
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
... Starting from the observed luminosity function, possible to derive an estimate for the Initial Mass Function (IMF). To define the IMF, imagine that we form a large number of stars. Then: the number of stars that have been x (M)DM = born with initial masses between M and M+DM (careful not to confuse ...
Ch. 28 Sec. 1
... Newton determined that each planet orbits a point between it and the Sun called the center of mass. Just as the balance point on a seesaw is closer to the heavier box, the center of mass between two orbiting bodies is closer to the more ...
... Newton determined that each planet orbits a point between it and the Sun called the center of mass. Just as the balance point on a seesaw is closer to the heavier box, the center of mass between two orbiting bodies is closer to the more ...
Sample multiple choice questions for Exam 3
... 2) The straight (and frequently blue) tail of a comet, which usually points away from the Sun is due to: a) ice crystals which gleam brightly in the sunlight b) dust particles which are accelerated by the "solar wind" from the Sun c) charged particles (ions) which fall faster towards the Sun than th ...
... 2) The straight (and frequently blue) tail of a comet, which usually points away from the Sun is due to: a) ice crystals which gleam brightly in the sunlight b) dust particles which are accelerated by the "solar wind" from the Sun c) charged particles (ions) which fall faster towards the Sun than th ...
1 - BYU Physics and Astronomy
... of the studied object is not blurred by the earth's atmosphere, (e) the entire sky can be observed. 73. The sun will continue to be a main-sequence star for about another (a) ten thousand years, (b) one million years, (c) five million years, (d) five billion years, (e) ten billion years. 74. It is t ...
... of the studied object is not blurred by the earth's atmosphere, (e) the entire sky can be observed. 73. The sun will continue to be a main-sequence star for about another (a) ten thousand years, (b) one million years, (c) five million years, (d) five billion years, (e) ten billion years. 74. It is t ...
PH507 - University of Kent
... 3. Taking Deneb to have a surface temperature of 8,500K and a radius of 200 solar radii, determine the present spectral class and luminosity class of Deneb. Investigate and state the stages through which Deneb is expected to progress. State the name of the pre-main-sequence track that Deneb would ha ...
... 3. Taking Deneb to have a surface temperature of 8,500K and a radius of 200 solar radii, determine the present spectral class and luminosity class of Deneb. Investigate and state the stages through which Deneb is expected to progress. State the name of the pre-main-sequence track that Deneb would ha ...
MSci Astrophysics 210PHY412
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
... Students will learn how to interpret observational characteristics of stars in terms of the underlying physical parameters You should gain an understanding of how stars of different mass evolve, and what end products are produced Students should learn what causes planetary nebulae and supernovae You ...
Star Powerpoint notes
... II, III, and IV indicate giants of different brightness. V is the main-sequence stars. White dwarfs do not have a luminosity class. ...
... II, III, and IV indicate giants of different brightness. V is the main-sequence stars. White dwarfs do not have a luminosity class. ...
The Milky Way
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
... bright it looks from Earth, you can determine how far away it must be to look that faint. • For any star in the sky, we KNOW: – Apparent Magnitude (m) – Spectral Type (O, B, A, F, G, K, M) – Luminosity Class (Main Sequence, Giant, etc…). These are denoted by a roman numeral (V, III, I,…). ...
15 - Edmodo
... Using pages 300-301 in your Investigating Science 9 textbook, draw a labeled Hertzsprung diagram below: (7 Marks) ...
... Using pages 300-301 in your Investigating Science 9 textbook, draw a labeled Hertzsprung diagram below: (7 Marks) ...
Binary Orbits
... • In some cases possible to map the motion in the sky and determine important parameters like the mass e.g. α Centauri ...
... • In some cases possible to map the motion in the sky and determine important parameters like the mass e.g. α Centauri ...
Stars - TeacherWeb
... • any object 15 to 75 times the mass of Jupiter • the object would not have been able to sustain fusion like a regular star - called "failed stars" • all are parts of a binary system. (two stars orbit around one another) • possible that brown dwarfs represent a lot of the mass in the universe ...
... • any object 15 to 75 times the mass of Jupiter • the object would not have been able to sustain fusion like a regular star - called "failed stars" • all are parts of a binary system. (two stars orbit around one another) • possible that brown dwarfs represent a lot of the mass in the universe ...
