Review Day
... Parts of the Atmosphere The atmosphere that surrounds the sun is made of three layers: Photosphere: Area where light is given off and lowest portion of the atmosphere. Chromosphere: Area beyond the photosphere. Corona: Only visible portion of the sun during an eclipse and the furthest layer fro ...
... Parts of the Atmosphere The atmosphere that surrounds the sun is made of three layers: Photosphere: Area where light is given off and lowest portion of the atmosphere. Chromosphere: Area beyond the photosphere. Corona: Only visible portion of the sun during an eclipse and the furthest layer fro ...
–1– Order of Magnitude Astrophysics
... slope (1/12) ≈ 0.08. The observed slope is ∼ 0.13. We saw above that stars are gravitationally bound systems in which self-sustaining nuclear reactions are taking place in the center. The process of combining four protons into a helium nuclei releases ∼ 0.03m p c2 of energy, which is ∼ 0.7% of the o ...
... slope (1/12) ≈ 0.08. The observed slope is ∼ 0.13. We saw above that stars are gravitationally bound systems in which self-sustaining nuclear reactions are taking place in the center. The process of combining four protons into a helium nuclei releases ∼ 0.03m p c2 of energy, which is ∼ 0.7% of the o ...
worksheet
... In the fusion process, when the 4 H nuclei are converted into a He nucleus a small amount of mass is lost as energy. Eg/ Mass of 4 H nuclei = 6.693 x 10-27kg Mass of 1 He nuclei = 6.645 x 10-27kg. What is the difference in their masses? ...
... In the fusion process, when the 4 H nuclei are converted into a He nucleus a small amount of mass is lost as energy. Eg/ Mass of 4 H nuclei = 6.693 x 10-27kg Mass of 1 He nuclei = 6.645 x 10-27kg. What is the difference in their masses? ...
here - University of Toronto Astronomy
... stellar evolution. Hydrogen-burning lifetime = (mass/luminosity) x 9 billion years, since larger stars have higher interior temperatures, faster use of nuclear fuel and faster evolution. Nuclear Reactions: Main-sequence stars convert hydrogen to helium. Physics Doppler Effect: Blue-shifts or red-shi ...
... stellar evolution. Hydrogen-burning lifetime = (mass/luminosity) x 9 billion years, since larger stars have higher interior temperatures, faster use of nuclear fuel and faster evolution. Nuclear Reactions: Main-sequence stars convert hydrogen to helium. Physics Doppler Effect: Blue-shifts or red-shi ...
Stars and Sun
... Small and medium stars use up the gases in the core and become a giant star Large, cool stars, red in color Sun will become a giant in 5 billion years • Will cover orbit of Mercury, Venus and Earth • Will be a giant for a billion years ...
... Small and medium stars use up the gases in the core and become a giant star Large, cool stars, red in color Sun will become a giant in 5 billion years • Will cover orbit of Mercury, Venus and Earth • Will be a giant for a billion years ...
Astronomy and Cosmology Exam Review
... Big Bang and Cosmology Exam Review 1) One light year is about 9.5x1012 Km 2) What does the red shift tell us about the motion of the universe? It is expanding 3) What is currently the most accepted theory about the origin of the universe called? Big Bang 4) What can I tell about a star based on its ...
... Big Bang and Cosmology Exam Review 1) One light year is about 9.5x1012 Km 2) What does the red shift tell us about the motion of the universe? It is expanding 3) What is currently the most accepted theory about the origin of the universe called? Big Bang 4) What can I tell about a star based on its ...
Name: Astronomy Study Guide Part 1 Define Astronomy
... Month- Length of time for the moon to revolve around earth Year- Length of time for Earth to revolve around sun 365.25 days Calendar- years, months, and days based on our celestial objects Leap Year- Feb 29 once every 4 years to make up for our 365.25 day solar year ...
... Month- Length of time for the moon to revolve around earth Year- Length of time for Earth to revolve around sun 365.25 days Calendar- years, months, and days based on our celestial objects Leap Year- Feb 29 once every 4 years to make up for our 365.25 day solar year ...
molecular clouds
... • Hydrogen and helium are the predominant components of the ISM, but it is enriched with heavier elements from earlier stars (created in stellar fusion and supernova explosions). ...
... • Hydrogen and helium are the predominant components of the ISM, but it is enriched with heavier elements from earlier stars (created in stellar fusion and supernova explosions). ...
Stellar Properties and Stellar Evolution Study Guide Name Why
... 5. A shock wave may be the stimulus that causes a nebula to start condensing to form new ...
... 5. A shock wave may be the stimulus that causes a nebula to start condensing to form new ...
Astronomy Review fall 2013
... Universe, thus proving that objects in space are still moving outward since the Big Bang occurred. ...
... Universe, thus proving that objects in space are still moving outward since the Big Bang occurred. ...
an object that moves around another object in space
... challenged the Geocentric model of the universe. I introduced the Suncentered model of the universe (Heliocentric). I believed the Sun was the center of the universe. ...
... challenged the Geocentric model of the universe. I introduced the Suncentered model of the universe (Heliocentric). I believed the Sun was the center of the universe. ...
Homework problems for Quiz 2: AY5 Spring 2013
... planetary nebula Red Giant Branch SNII White dwarf 3. In the fusion of four protons into helium, 4.7 × 10−26 grams of matter is turned into energy. How much energy does this amount of matter produce? ...
... planetary nebula Red Giant Branch SNII White dwarf 3. In the fusion of four protons into helium, 4.7 × 10−26 grams of matter is turned into energy. How much energy does this amount of matter produce? ...
Unit 12 Guide: Concepts of Earth Science Stars, Galaxies, and the
... Milky Way galaxy? 2. What evidence do scientists use to support the Big Bang Theory? Explain the sequence of events predicted by the Big Bang Theory. 3. Explain Hubble’s Law. 4. Compare and contrast the apparent and actual motion of stars. How can scientists know if a star or galaxy is moving toward ...
... Milky Way galaxy? 2. What evidence do scientists use to support the Big Bang Theory? Explain the sequence of events predicted by the Big Bang Theory. 3. Explain Hubble’s Law. 4. Compare and contrast the apparent and actual motion of stars. How can scientists know if a star or galaxy is moving toward ...
1 - Pitt County Schools
... 2. How does distance affect parallax? ___________________________________________________________________________ ___________________________________________________________________________ 3. What factors determine a star’s apparent magnitude? _______________________________________________________ ...
... 2. How does distance affect parallax? ___________________________________________________________________________ ___________________________________________________________________________ 3. What factors determine a star’s apparent magnitude? _______________________________________________________ ...
Astronomy Objectives
... Evolution of low mass (red dwarf) stars, medium mass main sequence stars, massive stars, all from nebulae to their final phases ...
... Evolution of low mass (red dwarf) stars, medium mass main sequence stars, massive stars, all from nebulae to their final phases ...
Ch. 27 Stars & Galaxies
... All the Hydrogen is fused into Helium The core of the star contracts High temperatures cause the helium atoms to fuse forming Carbon. The combined hydrogen fusion and helium fusion causes the outer shell to expand forming a Giant Star. ...
... All the Hydrogen is fused into Helium The core of the star contracts High temperatures cause the helium atoms to fuse forming Carbon. The combined hydrogen fusion and helium fusion causes the outer shell to expand forming a Giant Star. ...
Physical Science 1 Quiz 10 1 ID # or name:
... 3. (1 pt.) Gas and dust distributed among the stars is known as the _______________. a. interstellar vacuum b. interstellar void c. ...
... 3. (1 pt.) Gas and dust distributed among the stars is known as the _______________. a. interstellar vacuum b. interstellar void c. ...
WORD - UWL faculty websites
... o Observing which wavelengths are missing after reflection tells you about the composition of the reflecting surface! o Observing which wavelengths are missing after passing through material (e.g. atmosphere of a planet or star) tells you about that material Most of the stuff in the universe is hy ...
... o Observing which wavelengths are missing after reflection tells you about the composition of the reflecting surface! o Observing which wavelengths are missing after passing through material (e.g. atmosphere of a planet or star) tells you about that material Most of the stuff in the universe is hy ...