Black Hole
... It is a system of stars, dust, and gas held together by gravity. There are three basic types: spiral, elliptical, and irregular. A spiral galaxy is a flattened, discus-shaped collection of stars, having a central bulge. Examples include the Milky Way and Andromeda. An elliptical galaxy ranges in sha ...
... It is a system of stars, dust, and gas held together by gravity. There are three basic types: spiral, elliptical, and irregular. A spiral galaxy is a flattened, discus-shaped collection of stars, having a central bulge. Examples include the Milky Way and Andromeda. An elliptical galaxy ranges in sha ...
Stars: HR Diagaram Stellar Evolution Astronomy 1 — Elementary Astronomy LA Mission College
... Astronomy 1 — Elementary Astronomy LA Mission College Spring F2015 ...
... Astronomy 1 — Elementary Astronomy LA Mission College Spring F2015 ...
Chpt12a
... A similar process of core surrounded by a helium shell develops just like it did when helium began to burn. Now, however, the star swells to an even large size. It is now a red supergiant. Our Sun will engulf the Earth. ...
... A similar process of core surrounded by a helium shell develops just like it did when helium began to burn. Now, however, the star swells to an even large size. It is now a red supergiant. Our Sun will engulf the Earth. ...
Document
... The ash of one reaction, becomes the fuel of the next. • Fusion takes place in the core as long as the ...
... The ash of one reaction, becomes the fuel of the next. • Fusion takes place in the core as long as the ...
TAP 702- 6: Binary stars - Teaching Advanced Physics
... both will have their 589.0 nm spectral line red shifted by 0.13 nm, as both will have the same velocity relative to the Earth (question 4). When they move towards A and B, however, their velocities relative to Earth increase and decrease respectively, causing the spectral line to be red shifted by d ...
... both will have their 589.0 nm spectral line red shifted by 0.13 nm, as both will have the same velocity relative to the Earth (question 4). When they move towards A and B, however, their velocities relative to Earth increase and decrease respectively, causing the spectral line to be red shifted by d ...
The Universe Fine-Tuned for Life
... sunlight can penetrate; these organisms get energy from sulfur compounds emitted from hydrothermal vents. However, scientists conjecture that they feed on the carcasses of great whales on ocean floors (which indirectly depend on photosynthesis for life) while migrating along the sea floor from one t ...
... sunlight can penetrate; these organisms get energy from sulfur compounds emitted from hydrothermal vents. However, scientists conjecture that they feed on the carcasses of great whales on ocean floors (which indirectly depend on photosynthesis for life) while migrating along the sea floor from one t ...
Part II: Ideas in Conflict.
... a spherical shell which rotate around the earth. An alternate model, which works just as well, is for the earth to rotate inside the shell of stars. In order to explain the motion of all the other celestial bodies, more spherical shells must be added to this model. ...
... a spherical shell which rotate around the earth. An alternate model, which works just as well, is for the earth to rotate inside the shell of stars. In order to explain the motion of all the other celestial bodies, more spherical shells must be added to this model. ...
The Stars Tonight
... utilize and observation, as the ancients certainly could do; and having a full understanding of the situation leading to their observations, which ancient peoples certainly did not have. (Ancients could predict when and where an object would appear in the sky, some could even predict phenomena like ...
... utilize and observation, as the ancients certainly could do; and having a full understanding of the situation leading to their observations, which ancient peoples certainly did not have. (Ancients could predict when and where an object would appear in the sky, some could even predict phenomena like ...
History of Astronomy
... When object A exerts a force on object B, object B exerts an equal and opposite force on object A. ...
... When object A exerts a force on object B, object B exerts an equal and opposite force on object A. ...
Stars - Red, Blue, Old, New pt.4
... of the outer part-that’s normal matter, so the white dwarf does radiate according to its surface temp • 70,000-5000 K ...
... of the outer part-that’s normal matter, so the white dwarf does radiate according to its surface temp • 70,000-5000 K ...
Document
... iii. At this temperature, nuclear reactions in which hydrogen fuses to form helium can start. iv. The star begins to release energy, stopping it from contracting even more and causes it to shine. It is now a Main Sequence Star. *The first 4 stages of all the stars are same and the stages which follo ...
... iii. At this temperature, nuclear reactions in which hydrogen fuses to form helium can start. iv. The star begins to release energy, stopping it from contracting even more and causes it to shine. It is now a Main Sequence Star. *The first 4 stages of all the stars are same and the stages which follo ...
Astronomy 120
... 1. Zeilik Study Exercise 16.1 In a short paragraph, describe the primary characteristics of a white dwarf? 2. Zeilik Study Exercise 16.2 In a short paragraph, describe to a friend who has not studied astronomy the chief features of a neutron star. 3. Zeilik Study Exercise 16.5 Assuming no loss of ma ...
... 1. Zeilik Study Exercise 16.1 In a short paragraph, describe the primary characteristics of a white dwarf? 2. Zeilik Study Exercise 16.2 In a short paragraph, describe to a friend who has not studied astronomy the chief features of a neutron star. 3. Zeilik Study Exercise 16.5 Assuming no loss of ma ...
Lecture Eight (Powerpoint format) - Flash
... Molecules in Space Instead, astronomers found that molecules were very common in interstellar space -- particularly CO and NH3. The most common molecule in interstellar space -- H2 -- doesn’t emit this type of radio emission and so is nearly invisible. CO Map of Horsehead Nebula (BIMA/M. Pound) ...
... Molecules in Space Instead, astronomers found that molecules were very common in interstellar space -- particularly CO and NH3. The most common molecule in interstellar space -- H2 -- doesn’t emit this type of radio emission and so is nearly invisible. CO Map of Horsehead Nebula (BIMA/M. Pound) ...
TRANSIT
... and data reduction; there will be something for everyone from the very beginner to the ambitious student. Apart from the astronomical program, there are many non-astronomical activities such as group games, sporting events, singing evenings, hiking tours and an excursion. Since it is an internationa ...
... and data reduction; there will be something for everyone from the very beginner to the ambitious student. Apart from the astronomical program, there are many non-astronomical activities such as group games, sporting events, singing evenings, hiking tours and an excursion. Since it is an internationa ...
Level 4 Constellations North Star, South Star
... (Polaris) close to the Celestial North Pole. The Southern Hemisphere isn't so lucky. The only star that comes close is Sigma Octans, which is 1 degree away from the South Celestial Pole. But it's too dim to see at all except under optimal conditions. ...
... (Polaris) close to the Celestial North Pole. The Southern Hemisphere isn't so lucky. The only star that comes close is Sigma Octans, which is 1 degree away from the South Celestial Pole. But it's too dim to see at all except under optimal conditions. ...
Celestial Sphere
... So, we have a sphere (the Earth) within a sphere (Celestial sphere). If both were fixed and unchanging, we would always look to the same point in the sky to see the same object. BUT… We can be located anywhere on the Earth The Earth is rotating The Earth is orbiting the Sun The Moon is orbi ...
... So, we have a sphere (the Earth) within a sphere (Celestial sphere). If both were fixed and unchanging, we would always look to the same point in the sky to see the same object. BUT… We can be located anywhere on the Earth The Earth is rotating The Earth is orbiting the Sun The Moon is orbi ...
wk02noQ
... once per 230,000,000 years. How do we know? (motion of other stars in the Milky Way wrt the Sun; careful study of stellar positions over time) ...
... once per 230,000,000 years. How do we know? (motion of other stars in the Milky Way wrt the Sun; careful study of stellar positions over time) ...
CHAPTER 13: GRAVITATIONAL INTERACTIONS 13.1
... g is the gravitational field vector They are all different quantities that are related G and g have the same magnitude and their units are equivalent: N/kg = m/s2 g = GM/R2 g = 9.8 N/kg is valid only near the planet’s surface as R increases, g decreases The strength of Earth’s gravitational field is ...
... g is the gravitational field vector They are all different quantities that are related G and g have the same magnitude and their units are equivalent: N/kg = m/s2 g = GM/R2 g = 9.8 N/kg is valid only near the planet’s surface as R increases, g decreases The strength of Earth’s gravitational field is ...
What is a Star?
... Small Stars- The Life of a Star of about one Solar Mass. Stage 1- Stars are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity. ...
... Small Stars- The Life of a Star of about one Solar Mass. Stage 1- Stars are born in a region of high density Nebula, and condenses into a huge globule of gas and dust and contracts under its own gravity. ...
April11
... • Hydrogen and a little helium were formed shortly after the Big Bang • All other elements were formed inside stars! • Low-mass stars create carbon and oxygen in their cores at the end of their lifespan, thanks to the higher temperatures and pressures present in a red giant star • High-mass stars pr ...
... • Hydrogen and a little helium were formed shortly after the Big Bang • All other elements were formed inside stars! • Low-mass stars create carbon and oxygen in their cores at the end of their lifespan, thanks to the higher temperatures and pressures present in a red giant star • High-mass stars pr ...
Mathematics (P)review
... Using the Protractor Step 1: Line up the bottom of the protractor with one leg of the angle. Step 2: Line up the center of the protractor with the vertex of the angle. Step 3: Read the appropriate scale: - Inner scale for angles that open up clockwise (∠AOB = 149°) - Outer scale for angles that ope ...
... Using the Protractor Step 1: Line up the bottom of the protractor with one leg of the angle. Step 2: Line up the center of the protractor with the vertex of the angle. Step 3: Read the appropriate scale: - Inner scale for angles that open up clockwise (∠AOB = 149°) - Outer scale for angles that ope ...
