A tour of the solar system.
... • An increase of 10 units corresponds to 10,000 times brighter (100x100) ...
... • An increase of 10 units corresponds to 10,000 times brighter (100x100) ...
Lecture 5: Light as a tool
... • Hipparcos mission (European Space Agency) measured the stellar parallax of roughly 100,000 stars with precision of a few milli-arcseconds. So, it can measure distance of star up to 1,000 light-years away… ...
... • Hipparcos mission (European Space Agency) measured the stellar parallax of roughly 100,000 stars with precision of a few milli-arcseconds. So, it can measure distance of star up to 1,000 light-years away… ...
black hole
... Anything moving at less than escape velocity will eventually be pulled back to object What happens when escape velocity is greater than the speed of light? ...
... Anything moving at less than escape velocity will eventually be pulled back to object What happens when escape velocity is greater than the speed of light? ...
Can you figure out which of the stars shown here have planets
... because it is one of the closest stars to Earth. There are actually two stars here -- one much larger and hotter than the Sun, and a much fainter "white dwarf" left over when a star like our sun used up its fuel and died. Sirius B was discovered over 150 years ago -- as it orbits around it makes Sir ...
... because it is one of the closest stars to Earth. There are actually two stars here -- one much larger and hotter than the Sun, and a much fainter "white dwarf" left over when a star like our sun used up its fuel and died. Sirius B was discovered over 150 years ago -- as it orbits around it makes Sir ...
PPT - UBC
... Kepler's Laws, Mass-radius relationship. Pre-reading pages 23 - 33, 48 - 49, 180 - 198. (f) Hertzsprung-Russell Diagram, dwarf, giant and supergiant stars, white dwarfs, first clues to stellar evolution. Pre-reading Chapter 8. ...
... Kepler's Laws, Mass-radius relationship. Pre-reading pages 23 - 33, 48 - 49, 180 - 198. (f) Hertzsprung-Russell Diagram, dwarf, giant and supergiant stars, white dwarfs, first clues to stellar evolution. Pre-reading Chapter 8. ...
The most accepted theory of the origin of the solar system is the
... exoplanets (see below) with Jovian masses, but with orbits very close to their parent stars. A hot Jupiter is thought to form at a distance from its parent star beyond the frost line, where the planet can accrete from rock, ice and gases. The planet then migrates inward to the star where they eventu ...
... exoplanets (see below) with Jovian masses, but with orbits very close to their parent stars. A hot Jupiter is thought to form at a distance from its parent star beyond the frost line, where the planet can accrete from rock, ice and gases. The planet then migrates inward to the star where they eventu ...
www.astro.utu.fi
... the core burning stars turn into Helium white dwarfs, without going to the giant branch then they slowly fade from view Laughlin, Bodenheimer and Adams 1997 ...
... the core burning stars turn into Helium white dwarfs, without going to the giant branch then they slowly fade from view Laughlin, Bodenheimer and Adams 1997 ...
TYPES OF STARS
... When astronomers look through their telescopes, they see billions of stars. How do they make sense of all these stars? The goal of this problem set is for you to understand that astronomers classify stars on the basis of two different criteria: (1) the intensity of one of the H absorption lines (cal ...
... When astronomers look through their telescopes, they see billions of stars. How do they make sense of all these stars? The goal of this problem set is for you to understand that astronomers classify stars on the basis of two different criteria: (1) the intensity of one of the H absorption lines (cal ...
Star
... Far stranger still, if you are more massive, than neighbors in your border space, Will you collapse to become a black hole; a tunnel to some other place? Star in the heavens, are you aware, that time passes on far below? You stand aloof while generations of us, quickly come and then go But at the ti ...
... Far stranger still, if you are more massive, than neighbors in your border space, Will you collapse to become a black hole; a tunnel to some other place? Star in the heavens, are you aware, that time passes on far below? You stand aloof while generations of us, quickly come and then go But at the ti ...
HW10_Answers
... 1) For objects moving at a constant velocity, all motion is relative. This means that there is no object that is at absolute rest. It is impossible to tell if one object is at rest and another is in motion. You can only say that something is in motion relative to something else. That is the best tha ...
... 1) For objects moving at a constant velocity, all motion is relative. This means that there is no object that is at absolute rest. It is impossible to tell if one object is at rest and another is in motion. You can only say that something is in motion relative to something else. That is the best tha ...
Stars_Galaxies_Introduction - Etiwanda E
... What is the source of light in a galaxy? – How is energy produced by the sun? – How are sunspots, prominences, and solar flares related? – Why is our sun considered to be an average star? – How does our sun differ from stars in binary systems? ...
... What is the source of light in a galaxy? – How is energy produced by the sun? – How are sunspots, prominences, and solar flares related? – Why is our sun considered to be an average star? – How does our sun differ from stars in binary systems? ...
Star/Sun/Spectral Analysis - ppt
... (____________________ Hydrogen and ____________________) Helium which produces energy through ________ process, and Nuclear ___________ Fusion then emits such energy in the form of radiation ...
... (____________________ Hydrogen and ____________________) Helium which produces energy through ________ process, and Nuclear ___________ Fusion then emits such energy in the form of radiation ...
slectures_15_16
... The positions of emission lines and absorption lines are identically placed in the spectrum for the same gas. The wavelength is the same, the line appears bright in emission and dark in absorption. Atomic structure models are used to account for the composition link. The origin of spectral lines wer ...
... The positions of emission lines and absorption lines are identically placed in the spectrum for the same gas. The wavelength is the same, the line appears bright in emission and dark in absorption. Atomic structure models are used to account for the composition link. The origin of spectral lines wer ...
Lecture 19 The Milky Way Galaxy
... regions, star clusters, gas and dust - Sun is located on inner edge of one ...
... regions, star clusters, gas and dust - Sun is located on inner edge of one ...
Standard Set 2 - Atascadero High School
... adding neutrons to a preexisting heavy element that forms a “seed.” Neutrons are available only during a limited portion of a star’s lifetime, particularly during the brief supernova that occurs when a massive star dies. Section D Students know that stars differ in their life cycles and that visual, ...
... adding neutrons to a preexisting heavy element that forms a “seed.” Neutrons are available only during a limited portion of a star’s lifetime, particularly during the brief supernova that occurs when a massive star dies. Section D Students know that stars differ in their life cycles and that visual, ...
PH212 Chapter 13 Solutions
... into infinitesimal pieces and integrate to find U. S ET U P : Divide the rod into differential masses rod. E XECUTE : ...
... into infinitesimal pieces and integrate to find U. S ET U P : Divide the rod into differential masses rod. E XECUTE : ...
The Universe
... Different elements absorb different wavelengths of light. Thus removing them from the spectrum. The blank spaces (absorption lines) in the spectrum below represent different elements in that star ...
... Different elements absorb different wavelengths of light. Thus removing them from the spectrum. The blank spaces (absorption lines) in the spectrum below represent different elements in that star ...
How to Find the North Star ppt
... errare, meaning “to stray, err.” If something's done erroneously, you can think of it as straying from the right path and ending up going in the wrong direction. Celestial ...
... errare, meaning “to stray, err.” If something's done erroneously, you can think of it as straying from the right path and ending up going in the wrong direction. Celestial ...
Lecture notes 4: The Sun as a Star i
... The existense of absorption lines is a consequence of the same phenomenon: and is due two physical effects 1. A continuum of photons with various wavelengths flow from high temperatures at greater depths. Atoms at higher layers absorb some of these photons and go into an excited state. Deexciteation m ...
... The existense of absorption lines is a consequence of the same phenomenon: and is due two physical effects 1. A continuum of photons with various wavelengths flow from high temperatures at greater depths. Atoms at higher layers absorb some of these photons and go into an excited state. Deexciteation m ...
ecliptic. - Valhalla High School
... So, 360° = 24 h R.A., 15° = 1 h R.A., and 1° = 4 min R.A. Right ascension increases from west to east (note that we are looking at the exterior of the celestial sphere in the above picture). ...
... So, 360° = 24 h R.A., 15° = 1 h R.A., and 1° = 4 min R.A. Right ascension increases from west to east (note that we are looking at the exterior of the celestial sphere in the above picture). ...
Astrophysics Presentation
... Certain spectral lines appeared consistently at certain temperatures and disappeared at others Different lines appear with different degrees of ionisation – which results from different temperatures ...
... Certain spectral lines appeared consistently at certain temperatures and disappeared at others Different lines appear with different degrees of ionisation – which results from different temperatures ...
Space Explorations - Holy Cross Collegiate
... • Each element that is present in the star creates its own black-line ‘fingerprint’. • The spectra of the stars are then compared to known spectra of elements to determine the star’s composition. • This is called spectral analysis. A spectrometer is used to do this. ...
... • Each element that is present in the star creates its own black-line ‘fingerprint’. • The spectra of the stars are then compared to known spectra of elements to determine the star’s composition. • This is called spectral analysis. A spectrometer is used to do this. ...
test corrections
... 25. What is the big bang theory? 26. At which latitude does the amount of daylight vary the most? Why? 27. Why do we use models in Earth Science? 28. How can a scientific hypothesis become a theory? 29. What is solar wind made of? 30. Draw a diagram of how Earth would look relative to the Sun on the ...
... 25. What is the big bang theory? 26. At which latitude does the amount of daylight vary the most? Why? 27. Why do we use models in Earth Science? 28. How can a scientific hypothesis become a theory? 29. What is solar wind made of? 30. Draw a diagram of how Earth would look relative to the Sun on the ...
IK Pegasi
IK Pegasi (or HR 8210) is a binary star system in the constellation Pegasus. It is just luminous enough to be seen with the unaided eye, at a distance of about 150 light years from the Solar System.The primary (IK Pegasi A) is an A-type main-sequence star that displays minor pulsations in luminosity. It is categorized as a Delta Scuti variable star and it has a periodic cycle of luminosity variation that repeats itself about 22.9 times per day. Its companion (IK Pegasi B) is a massive white dwarf—a star that has evolved past the main sequence and is no longer generating energy through nuclear fusion. They orbit each other every 21.7 days with an average separation of about 31 million kilometres, or 19 million miles, or 0.21 astronomical units (AU). This is smaller than the orbit of Mercury around the Sun.IK Pegasi B is the nearest known supernova progenitor candidate. When the primary begins to evolve into a red giant, it is expected to grow to a radius where the white dwarf can accrete matter from the expanded gaseous envelope. When the white dwarf approaches the Chandrasekhar limit of 1.44 solar masses (M☉), it may explode as a Type Ia supernova.