Herzsprung-Russell Diagram
... Only 6 of the 20 brightest stars in the sky are closer to us than 10pc 14 of the 20 brightest stars in the sky must have absolute magnitude of at least 1.5 (20 times brighter than the Sun) Out of the 6000 stars visible, only 50 are dimmer than the Sun in absolute ...
... Only 6 of the 20 brightest stars in the sky are closer to us than 10pc 14 of the 20 brightest stars in the sky must have absolute magnitude of at least 1.5 (20 times brighter than the Sun) Out of the 6000 stars visible, only 50 are dimmer than the Sun in absolute ...
Slide 1
... emit high energy photons that are absorbed by the gas. The heated gases produce an emission spectrum and the particular wavelength of the red light of the nebula is 656nm. The exact wavelength of Hydrogen. ...
... emit high energy photons that are absorbed by the gas. The heated gases produce an emission spectrum and the particular wavelength of the red light of the nebula is 656nm. The exact wavelength of Hydrogen. ...
Word doc - UC-HiPACC - University of California, Santa Cruz
... temperature (maybe 7,500°F compared to 10,000°F for the Sun, a G2 star). A whopping 260 light-years away in the constellation Sextans, you’d need an 8-inch telescope under dark skies even to pick out the host star (magnitude 12.4). Like just about every other exoplanet discovered so far, WASP-43b is ...
... temperature (maybe 7,500°F compared to 10,000°F for the Sun, a G2 star). A whopping 260 light-years away in the constellation Sextans, you’d need an 8-inch telescope under dark skies even to pick out the host star (magnitude 12.4). Like just about every other exoplanet discovered so far, WASP-43b is ...
Lecture12
... “Super-Earths” In the last several years, finding planets with masses 3–10× the mass of the earth. Some very close to their stars (2 day orbit!). Smallest 3.3 earth masses, orbiting a very cold “brown dwarf” star. ...
... “Super-Earths” In the last several years, finding planets with masses 3–10× the mass of the earth. Some very close to their stars (2 day orbit!). Smallest 3.3 earth masses, orbiting a very cold “brown dwarf” star. ...
solution
... metals and particularly ionized calcium (see Table 17-2 in the text and Figure 17-11). The Sun, like most all stars, is about 74% H by mass, so it is mostly comprised of hydrogen. What we observe in stellar spectra are absorption lines in the stars’ outer atmosphere. In order for there to be promine ...
... metals and particularly ionized calcium (see Table 17-2 in the text and Figure 17-11). The Sun, like most all stars, is about 74% H by mass, so it is mostly comprised of hydrogen. What we observe in stellar spectra are absorption lines in the stars’ outer atmosphere. In order for there to be promine ...
McDonald Observatory Planet Search - tls
... • K giant (IAU radial velocity standards) are RV variable stars! • Multi-periodic on two time scales: 200-600 days and 0.25 – 8 days ...
... • K giant (IAU radial velocity standards) are RV variable stars! • Multi-periodic on two time scales: 200-600 days and 0.25 – 8 days ...
Can We Make A Star?
... • They are made of cosmic dust, mostly hydrogen and helium • They are very unstable • The are very violent • They give off an extremely large amount of energy ...
... • They are made of cosmic dust, mostly hydrogen and helium • They are very unstable • The are very violent • They give off an extremely large amount of energy ...
Answers to Science Semester 1Review Possible hazards in the lab
... 32. Planets that have retrograde rotation are: Venus, Uranus, and Pluto. 33. Rotation is the spinning or turning about an axis. 34. Planet’s rotation tells us the length of day. 35. Revolution is the motion of a body orbiting another body in space. 36. Planet’s revolution tells us the length of the ...
... 32. Planets that have retrograde rotation are: Venus, Uranus, and Pluto. 33. Rotation is the spinning or turning about an axis. 34. Planet’s rotation tells us the length of day. 35. Revolution is the motion of a body orbiting another body in space. 36. Planet’s revolution tells us the length of the ...
Chapter 28 – Stars and Galaxies
... 1. The actual brightness of the star is luminosity 2. If two stars have the same surface temperature, the larger star would be more luminous 3. If the same size, hotter one would be brighter 4. Types of magnitude a. Absolute – as if all stars were same distance from earth b. Apparent – as they appea ...
... 1. The actual brightness of the star is luminosity 2. If two stars have the same surface temperature, the larger star would be more luminous 3. If the same size, hotter one would be brighter 4. Types of magnitude a. Absolute – as if all stars were same distance from earth b. Apparent – as they appea ...
Quentin Parker Lecture 1b - PowerPoint file.
... discovered orbiting the star 51 Pegasi might look like close up. ...
... discovered orbiting the star 51 Pegasi might look like close up. ...
Mountain Skies
... is spotted only low in the west after sunset or low in the east before sunrise depending on where it is in its orbit. In April, we get a chance at both views. Tonight, as the sky darkens, it is in the west below Mars. But, recall that Mer ...
... is spotted only low in the west after sunset or low in the east before sunrise depending on where it is in its orbit. In April, we get a chance at both views. Tonight, as the sky darkens, it is in the west below Mars. But, recall that Mer ...
Chapter #10 Question #27: (c) Four individual protons. During
... This statement makes sense. Massive stars fuse higher elements in their core during their death. The final result is an iron core which is released to the interstellar space during a high mass star supernova. A massive star supernova that blew up before the formation of the solar system would have r ...
... This statement makes sense. Massive stars fuse higher elements in their core during their death. The final result is an iron core which is released to the interstellar space during a high mass star supernova. A massive star supernova that blew up before the formation of the solar system would have r ...
Lecture 13: The stars are suns
... Apart from the Sun, all other stars are normally unresolved – just points of lights. But we can measure: Apparent brightness f and Spectrum: continuum emission tells us about surface temperature and dark lines tell us about the surface composition. • Apparent Brightness or Flux (f ) is measured in w ...
... Apart from the Sun, all other stars are normally unresolved – just points of lights. But we can measure: Apparent brightness f and Spectrum: continuum emission tells us about surface temperature and dark lines tell us about the surface composition. • Apparent Brightness or Flux (f ) is measured in w ...
Planets and Transits
... 2) Free-floating objects in young star clusters (which presumably formed in the same manner as stars and have not been shown to be ejected from planetary systems) with masses below the limiting mass for thermonuclear fusion of deuterium are not "planets", but are "sub-brown dwarfs" (or whatever name ...
... 2) Free-floating objects in young star clusters (which presumably formed in the same manner as stars and have not been shown to be ejected from planetary systems) with masses below the limiting mass for thermonuclear fusion of deuterium are not "planets", but are "sub-brown dwarfs" (or whatever name ...
Photometric Surveys and Variable stars
... MACHO, OGLE, and ASAS provide reasonable examples for how to deal with massive databases: process them quickly, build a database, and either... ...
... MACHO, OGLE, and ASAS provide reasonable examples for how to deal with massive databases: process them quickly, build a database, and either... ...
Is There Life in Space?
... NEBULA: Cloud of dust and gas where stars are born Black Hole: is a region of space from which nothing, including light, can escape. It is the result of the deformation of spacetime caused by a very compact mass. NEUTRON STAR: A neutron star is about 20 km in diameter and has the mass of about 1.4 t ...
... NEBULA: Cloud of dust and gas where stars are born Black Hole: is a region of space from which nothing, including light, can escape. It is the result of the deformation of spacetime caused by a very compact mass. NEUTRON STAR: A neutron star is about 20 km in diameter and has the mass of about 1.4 t ...
Name ______KEY Date Core ______ Study Guide Galaxies and the
... When did the Big Bang happen and what has happened since? The big bang theory is theorized to have happened 14 billion years ago when the universe suddenly began to expand from one merged mass of matter or substance. At that time, all matter was dense and hot and the universe developed in less than ...
... When did the Big Bang happen and what has happened since? The big bang theory is theorized to have happened 14 billion years ago when the universe suddenly began to expand from one merged mass of matter or substance. At that time, all matter was dense and hot and the universe developed in less than ...
Chapter 15 Stars, Galaxies
... 12. a. How far the star is from Earth b. How bright the star actually is 13. a. The brightness of a star as seen from Earth b. The brightness a star would have if it were at a standard distance from Earth c. Star X has a greater apparent brightness than Star Y. d. You cannot compare the absolute bri ...
... 12. a. How far the star is from Earth b. How bright the star actually is 13. a. The brightness of a star as seen from Earth b. The brightness a star would have if it were at a standard distance from Earth c. Star X has a greater apparent brightness than Star Y. d. You cannot compare the absolute bri ...
Planetarium Field Guide 2015-2016 Third Grade
... How many planets are there in our solar system? Is it eight or nine? What is the difference between the Sun and the planets? How are the inner planets different than the outer planets? Program: “Nine Planets and Counting” The program takes students on a tour to explore the many objects that populate ...
... How many planets are there in our solar system? Is it eight or nine? What is the difference between the Sun and the planets? How are the inner planets different than the outer planets? Program: “Nine Planets and Counting” The program takes students on a tour to explore the many objects that populate ...
Mon Feb 13, 2012 JULES VERNE The French science fiction writer
... The astronomer and physicist Galileo Galilei was born on February 15 in the year 1564. Galileo did not invent the telescope, but when he heard of its invention, he built his own, and like other astronomers of the 17 th century, Galileo aimed his telescope at the sky and made some amazing discoveries ...
... The astronomer and physicist Galileo Galilei was born on February 15 in the year 1564. Galileo did not invent the telescope, but when he heard of its invention, he built his own, and like other astronomers of the 17 th century, Galileo aimed his telescope at the sky and made some amazing discoveries ...
Stellar Evolution
... •Most stars appear on the Main Sequence, where stars appear to obey a Mass-Luminosity relation: L M3.5 •For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. •Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. ...
... •Most stars appear on the Main Sequence, where stars appear to obey a Mass-Luminosity relation: L M3.5 •For example, if the mass of a star is doubled, its luminosity increases by a factor 23.5 ~ 11. •Thus, stars like Sirius that are about twice as massive as the Sun are about 11 times as luminous. ...
Life Cycles of Stars
... • Supergiants that run out of fuel end in a massive explosion • Many nuclear fusion reactions occur and new elements form and explode into space • The debris from the explosion is the source for a new nebula • What remains of the star depends on the original size of the star ...
... • Supergiants that run out of fuel end in a massive explosion • Many nuclear fusion reactions occur and new elements form and explode into space • The debris from the explosion is the source for a new nebula • What remains of the star depends on the original size of the star ...