Joining the Party - Lincoln-Sudbury Regional High School
... moving more slowly and tend to be further apart. That is, the gas is at a low temperature and a low pressure. The protons have enough time, and space, to avoid each other. ...
... moving more slowly and tend to be further apart. That is, the gas is at a low temperature and a low pressure. The protons have enough time, and space, to avoid each other. ...
Objects In Space -- research questions
... 5. Can we see them from Earth? If so, what do they look like? ...
... 5. Can we see them from Earth? If so, what do they look like? ...
Measuring Stars` Properties - Test 1 Study Guide
... 4.3 light years = 4 x 1013 km (1 AU = distance Earth to Sun = 8 light minutes) • Close stars use stellar parallax (heliocentric parallax or triangulation ! same meaning) • Can “easily” measure distance using parallax to a few 100 LY. Need telescope: first observed in 1838. Study close stars in det ...
... 4.3 light years = 4 x 1013 km (1 AU = distance Earth to Sun = 8 light minutes) • Close stars use stellar parallax (heliocentric parallax or triangulation ! same meaning) • Can “easily” measure distance using parallax to a few 100 LY. Need telescope: first observed in 1838. Study close stars in det ...
The New Cosmology: Our Expanding Universe
... The early idea was that Earth was a flat stationary plate, and the sky above was like a moving domed roof. That the earth was flat was obvious from sense experience: earth is experienced as flat and we don’t fall off. That the sky was moving was also obvious from experience, since all the objects in ...
... The early idea was that Earth was a flat stationary plate, and the sky above was like a moving domed roof. That the earth was flat was obvious from sense experience: earth is experienced as flat and we don’t fall off. That the sky was moving was also obvious from experience, since all the objects in ...
ASTRO OTTER (for secondary students)
... background radiation and the H/He ratio. The program concludes with a short view of the accretionary disk model of the formation of the solar system. TEK Gr.8- 8(E) The Life Cycle of Stars ...
... background radiation and the H/He ratio. The program concludes with a short view of the accretionary disk model of the formation of the solar system. TEK Gr.8- 8(E) The Life Cycle of Stars ...
The Birth of Stars and Planets
... 1. How does the accretion process onto the central star evolve with time? 2. How do large-scale (molecular) outflows and jets form? How do they get collimated? Where is exactly their origin? 3. Which role do magnetic fields play? Are they coupled to the disk? Are they important for the accretion pro ...
... 1. How does the accretion process onto the central star evolve with time? 2. How do large-scale (molecular) outflows and jets form? How do they get collimated? Where is exactly their origin? 3. Which role do magnetic fields play? Are they coupled to the disk? Are they important for the accretion pro ...
Summer - Dark Sky Discovery
... charts here are far simpler and have fewer stars. You can just hold these up in front of you when you’re facing the appropriate direction and look up! Looking North The plough is perhaps the most easily recognised group of stars in the northern sky and it is a very useful ‘skymark’. The plough is al ...
... charts here are far simpler and have fewer stars. You can just hold these up in front of you when you’re facing the appropriate direction and look up! Looking North The plough is perhaps the most easily recognised group of stars in the northern sky and it is a very useful ‘skymark’. The plough is al ...
Transits
... HST and Spitzer space observations have shown that the transmission spectrum is broadly flat from the near- to mid-infrared. Exclude molecular features expected for a cloud-free hydrogen-rich atmosphere Either a water-vapor atmosphere, or the presence of clouds or thick hazes in a hydrogen atmospher ...
... HST and Spitzer space observations have shown that the transmission spectrum is broadly flat from the near- to mid-infrared. Exclude molecular features expected for a cloud-free hydrogen-rich atmosphere Either a water-vapor atmosphere, or the presence of clouds or thick hazes in a hydrogen atmospher ...
The Sun: center of the Solar System
... Because the Sun is the type of star it is… • It produces the “right luminosity” for us (3.85E26 Watts) • This luminosity is believed to have been stable for the last several billion years • It shines at this luminosity long enough for us to arrive on the scene and enjoy it ...
... Because the Sun is the type of star it is… • It produces the “right luminosity” for us (3.85E26 Watts) • This luminosity is believed to have been stable for the last several billion years • It shines at this luminosity long enough for us to arrive on the scene and enjoy it ...
Stars
... It is believed to be around 14 billion years old, and at least 93 billion light years across. The Universe is believed to have originated in the Big Bang. It is changing all the time, both expanding in size, and changing in composition. It contains billions of galaxies, each containing billions of s ...
... It is believed to be around 14 billion years old, and at least 93 billion light years across. The Universe is believed to have originated in the Big Bang. It is changing all the time, both expanding in size, and changing in composition. It contains billions of galaxies, each containing billions of s ...
Astronomy 112: Physics of Stars Problem set 1 solutions 1
... of submission, for one of the above The professor likes to drink wine and prefers it chilled to 10 degrees C (283 K). The wine and bottle have a mass, m, of 1000 gm and a surface area of 700 cm2 . The heat capacity of the wine and bottle together is CP = 4 × 107 erg gm−1 K−1 . The total heat content ...
... of submission, for one of the above The professor likes to drink wine and prefers it chilled to 10 degrees C (283 K). The wine and bottle have a mass, m, of 1000 gm and a surface area of 700 cm2 . The heat capacity of the wine and bottle together is CP = 4 × 107 erg gm−1 K−1 . The total heat content ...
Astron 104 Laboratory #11 The Scale of the Milky Way
... called the Local Group. The following table lists the distances to the centers of three Local Group galaxies. Draw a dot on your picture (if possible) to represent the center of each galaxy. Don’t worry about the direction (left/right/up/down) for each galaxy; just place a dot an appropriate distanc ...
... called the Local Group. The following table lists the distances to the centers of three Local Group galaxies. Draw a dot on your picture (if possible) to represent the center of each galaxy. Don’t worry about the direction (left/right/up/down) for each galaxy; just place a dot an appropriate distanc ...
Earth Motions and the Heavens
... These galaxies are 200,000 light years away, yet easily visible to the naked eye in dark skies! ...
... These galaxies are 200,000 light years away, yet easily visible to the naked eye in dark skies! ...
1. Introduction
... In parallel with these developments, it has come to be realized that some, and probably very many, stars pulsate in more complicated manners than the Cepheids. In many instances more than one mode of oscillation is excited simultaneously in a star; these modes may include both radial overtones, in a ...
... In parallel with these developments, it has come to be realized that some, and probably very many, stars pulsate in more complicated manners than the Cepheids. In many instances more than one mode of oscillation is excited simultaneously in a star; these modes may include both radial overtones, in a ...
Problem Set 6 for Astro 320 Read sections 11.2
... 1.6 × 104 N m−2 . This is actually reasonably close to the gas pressure elsewhere in the photosphere (2×104 ); the magnetic pressure in the sunspot replaces much of the gas pressure, allowing the material to cool without condensing and sinking immediately. b) C & O, problem 11.14. If CMEs ejects 101 ...
... 1.6 × 104 N m−2 . This is actually reasonably close to the gas pressure elsewhere in the photosphere (2×104 ); the magnetic pressure in the sunspot replaces much of the gas pressure, allowing the material to cool without condensing and sinking immediately. b) C & O, problem 11.14. If CMEs ejects 101 ...
Chapter 11
... 12. According to Figure 11-5, the Protosun was cooler yet much more luminous than the Sun is now. How can this be true? a. The Protosun had more mass. b. The Protosun was much larger. c. The rate of nuclear fusion was higher inside the Protosun. d. Both a and c above. e. Both b and c above. ...
... 12. According to Figure 11-5, the Protosun was cooler yet much more luminous than the Sun is now. How can this be true? a. The Protosun had more mass. b. The Protosun was much larger. c. The rate of nuclear fusion was higher inside the Protosun. d. Both a and c above. e. Both b and c above. ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.