ASTR2050 Spring 2005 •
... Note:The speed of the wave is a property of the medium through which it propagates, and independent of the source velocity. ...
... Note:The speed of the wave is a property of the medium through which it propagates, and independent of the source velocity. ...
05spectralclasses
... • Balmer absorption lines occur when an incoming photon causes an electron in the n = 2 level in hydrogen to jump to a higher level. • The hotter a star, the more likely that hydrogen electrons will be in the n = 2 level • But for very hot stars, hydrogen will lose its electrons completely ...
... • Balmer absorption lines occur when an incoming photon causes an electron in the n = 2 level in hydrogen to jump to a higher level. • The hotter a star, the more likely that hydrogen electrons will be in the n = 2 level • But for very hot stars, hydrogen will lose its electrons completely ...
K - College of San Mateo
... Losmandy G-11 equatorial mount w/Gemini. The mount takes goto commands from the computer to provide accurate tracking, via camera control software. Meade 8” SCT telescope with f/6.3 focal reducer. The faster f/ratio allows shorter exposure times, and imaging of fainter stars. FL=1270mm. Focusing is ...
... Losmandy G-11 equatorial mount w/Gemini. The mount takes goto commands from the computer to provide accurate tracking, via camera control software. Meade 8” SCT telescope with f/6.3 focal reducer. The faster f/ratio allows shorter exposure times, and imaging of fainter stars. FL=1270mm. Focusing is ...
Chapter 29
... The nebulae collapses upon itself and rotates. As it continues to contract it gains pressure and temperature until fusion begins ...
... The nebulae collapses upon itself and rotates. As it continues to contract it gains pressure and temperature until fusion begins ...
Slides from Dr. Frank`s Lecture17
... 1) The binary separation decreases because of gravitational radiation and other angular momentum losses. 2) The component stars will evolve and change size (for example becoming a red giant) Conclusion: Long period (wide) binaries may never become interacting while short period (close) binaries are ...
... 1) The binary separation decreases because of gravitational radiation and other angular momentum losses. 2) The component stars will evolve and change size (for example becoming a red giant) Conclusion: Long period (wide) binaries may never become interacting while short period (close) binaries are ...
The future sun March 18 −
... • Fri & Sat, 9-11pm, if it is not cloudy. • Mar 18 & 19 • Apr 15 & 16 • May 13 & 14 • 24-inch telescope in dome • small telescopes outside ...
... • Fri & Sat, 9-11pm, if it is not cloudy. • Mar 18 & 19 • Apr 15 & 16 • May 13 & 14 • 24-inch telescope in dome • small telescopes outside ...
Reach_for_the_stars_final_questions.doc
... 6. Antares emits a large portion of its energy in what non-visible wavelength? (1 pt) _____________________________________________________________________________________________________ 7. White dwarfs can go supernova when they approach a certain mass. What is the name of this “critical mass”? (1 ...
... 6. Antares emits a large portion of its energy in what non-visible wavelength? (1 pt) _____________________________________________________________________________________________________ 7. White dwarfs can go supernova when they approach a certain mass. What is the name of this “critical mass”? (1 ...
File
... Once born, stars are self-illuminating…they ____________________________________________! Main sequence = ______________ yellow stars (like our sun!) + ______________ blue stars As a star runs out of energy, it ______________ into a red ______________ or a red ______________________ After stars die, ...
... Once born, stars are self-illuminating…they ____________________________________________! Main sequence = ______________ yellow stars (like our sun!) + ______________ blue stars As a star runs out of energy, it ______________ into a red ______________ or a red ______________________ After stars die, ...
Cosmology - RHIG - Wayne State University
... BUT does matter come out of this phase the same way it went in ??? ...
... BUT does matter come out of this phase the same way it went in ??? ...
Pre-Lab
... Galaxy seen from the inside (but not the center). With unaided eyes one other galaxy can be seen in the northern sky, the Andromeda nebulae, as it was called before its true nature was known. It is a faint fuzzy patch in the region of the sky containing the stars of the constellation Andromeda. Two ...
... Galaxy seen from the inside (but not the center). With unaided eyes one other galaxy can be seen in the northern sky, the Andromeda nebulae, as it was called before its true nature was known. It is a faint fuzzy patch in the region of the sky containing the stars of the constellation Andromeda. Two ...
How Do Astronomers Gather Information About
... How Do Astronomers Gather Information About Space? Most of the information we have about the universe comes from ____________. Objects in the universe, such as _____________________, emit radiation. This radiation travels in the form of ____________. Different kinds of radiation have differing _____ ...
... How Do Astronomers Gather Information About Space? Most of the information we have about the universe comes from ____________. Objects in the universe, such as _____________________, emit radiation. This radiation travels in the form of ____________. Different kinds of radiation have differing _____ ...
ASTR 553/554 (1) : Questions
... questions that follow, work with either I(R) or µ(R), which ever your prefer. b. What's the surface brightness, I(0), at the center of the Milky Way disk, and what's the disk's total luminosity in LV, . c. Using MV, = 4.82, calculate the Milky Way's absolute magnitude, MV. If viewed from Virgo (dist ...
... questions that follow, work with either I(R) or µ(R), which ever your prefer. b. What's the surface brightness, I(0), at the center of the Milky Way disk, and what's the disk's total luminosity in LV, . c. Using MV, = 4.82, calculate the Milky Way's absolute magnitude, MV. If viewed from Virgo (dist ...
General Relativity
... Sun. This effect has been measured by bouncing radio waves off Mercury and Venus as they pass behind the Sun, and observing signals from solar system space craft. GR effects have been confirmed to an accuracy of 0.1% using these measurements. ...
... Sun. This effect has been measured by bouncing radio waves off Mercury and Venus as they pass behind the Sun, and observing signals from solar system space craft. GR effects have been confirmed to an accuracy of 0.1% using these measurements. ...
Galaxies - science9atsouthcarletonhs
... graceful shapes of arms emanating from a bright central nucleus. Spirals are classified according to how tightly or loosely wound the arms are, and it turns out that the brightness of the central nucleus is correlated to the tightness of the arm. The galaxies M 104 (below) and M 51 (right) respectiv ...
... graceful shapes of arms emanating from a bright central nucleus. Spirals are classified according to how tightly or loosely wound the arms are, and it turns out that the brightness of the central nucleus is correlated to the tightness of the arm. The galaxies M 104 (below) and M 51 (right) respectiv ...
Virtual Design Center
... Q3: solar system is objects bound to a star, galaxy has many stars with their own solar system, universe has everything (many galaxies plus other random space objects, e.g. black holes) Q4: improved technology, using physics/math equations, taking samples, images in various wavelengths List of Naïve ...
... Q3: solar system is objects bound to a star, galaxy has many stars with their own solar system, universe has everything (many galaxies plus other random space objects, e.g. black holes) Q4: improved technology, using physics/math equations, taking samples, images in various wavelengths List of Naïve ...
BV Color Index and Temperature - The University of Texas at Dallas
... • increases as the stellar distance increases only accurate enough to measure stellar distances of up to about 10 Mpc. • star has to be sufficiently bright to be able to measure the spectrum • can be obscured by matter between the star and the observer. ...
... • increases as the stellar distance increases only accurate enough to measure stellar distances of up to about 10 Mpc. • star has to be sufficiently bright to be able to measure the spectrum • can be obscured by matter between the star and the observer. ...
Our Star - the Sun
... apparent shift of a star against the background stars observed as the Earth moves along its orbit Parallax measurements made from orbit, above the blurring effects of the atmosphere, are much more accurate than those made with Earth-based telescopes Stellar parallaxes can only be measured for stars ...
... apparent shift of a star against the background stars observed as the Earth moves along its orbit Parallax measurements made from orbit, above the blurring effects of the atmosphere, are much more accurate than those made with Earth-based telescopes Stellar parallaxes can only be measured for stars ...
star - TeacherWeb
... • Band extends from cool, dim, red stars at the lower right to hot, bright, blue stars at the upper left known as Main Sequence. • Stars within this band are called main sequence stars. ie. Sun ...
... • Band extends from cool, dim, red stars at the lower right to hot, bright, blue stars at the upper left known as Main Sequence. • Stars within this band are called main sequence stars. ie. Sun ...
Stellar Evolution
... As the helium in the core fuses to carbon, the core becomes hotter and hotter, and the helium burns faster and faster. When the helium is exhausted, the star is now similar to its condition just as it left the main sequence, except now there are two shells: a hydrogen-burning shell and a heliumb ...
... As the helium in the core fuses to carbon, the core becomes hotter and hotter, and the helium burns faster and faster. When the helium is exhausted, the star is now similar to its condition just as it left the main sequence, except now there are two shells: a hydrogen-burning shell and a heliumb ...
Teaching ideas for Option E, Astrophysics
... interesting and it is worth spending some time on it. Freeman Dyson’s obituary of Chandrasekhar, in Nature, 438, 1086 (22 December 2005), The death of a star, is very good. ...
... interesting and it is worth spending some time on it. Freeman Dyson’s obituary of Chandrasekhar, in Nature, 438, 1086 (22 December 2005), The death of a star, is very good. ...