Week8Lecture1
... Need a mass of ~4x10 solar masses to keep this material from flying away. Thus Sagittarius A* is probably a supermassive black hole at the center of the galaxy. ...
... Need a mass of ~4x10 solar masses to keep this material from flying away. Thus Sagittarius A* is probably a supermassive black hole at the center of the galaxy. ...
The Mighty Hunter in the Winter Sky By Shannon Jackson
... Five constellations are always in our northern sky. Other groupings appear seasonally, and then disappear as they fall below the horizon. There are five constellations, however, which seem to circle Polaris (po LAR us), also known as the North Star. The North Star always stays put while the other st ...
... Five constellations are always in our northern sky. Other groupings appear seasonally, and then disappear as they fall below the horizon. There are five constellations, however, which seem to circle Polaris (po LAR us), also known as the North Star. The North Star always stays put while the other st ...
Stars
... has nothing to do with the star’s motion through space. It is just an easy-to-understand representation of how the temperature and luminosity change during a star’s life. ...
... has nothing to do with the star’s motion through space. It is just an easy-to-understand representation of how the temperature and luminosity change during a star’s life. ...
File - We All Love Science
... – Stars smaller than 0.1 are very rare. Why? – These low mass stars are very dim and are called “Brown Dwarf” stars due to their dim red light ...
... – Stars smaller than 0.1 are very rare. Why? – These low mass stars are very dim and are called “Brown Dwarf” stars due to their dim red light ...
Photometry – I. “All sky”
... years, you might not even be able to get the same glass that was used previously. Detectors are also not really uniform; CCDs are much more red-sensitive than photomultipliers and different types (of either) might have significantly different responses as a function of wavelength. At the same time, ...
... years, you might not even be able to get the same glass that was used previously. Detectors are also not really uniform; CCDs are much more red-sensitive than photomultipliers and different types (of either) might have significantly different responses as a function of wavelength. At the same time, ...
Omega Centauri
... Accounting for the [Fe/H] content and magnitude on the SGB, and assumuing the only the metal intermediate population is He rich, Villanova et al. find an age Omega Cen age dispersion dispersion of ~4Gyr, with a complex star formation history remains an open issue ...
... Accounting for the [Fe/H] content and magnitude on the SGB, and assumuing the only the metal intermediate population is He rich, Villanova et al. find an age Omega Cen age dispersion dispersion of ~4Gyr, with a complex star formation history remains an open issue ...
MS Word version
... The following sequence of directions are steps an instructor might choose to follow in demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We ...
... The following sequence of directions are steps an instructor might choose to follow in demonstrating the Eclipsing Binary Simulator in a classroom situation. We provide these suggestions with appropriate questions (shown in bold italics) to pose to the class as an aid in promoting interactivity. We ...
Astronomy 15 - Problem Set Number 4 1) Suppose one were to
... These electrons are accelerated to strike yet another piece of metal, the process is repeated until the original photoelectron has been multiplied by a million times or more. This results in an easily detectable pulse of electric current corresponding to the original photon. Photomultipliers therefo ...
... These electrons are accelerated to strike yet another piece of metal, the process is repeated until the original photoelectron has been multiplied by a million times or more. This results in an easily detectable pulse of electric current corresponding to the original photon. Photomultipliers therefo ...
The Rigel Star - Emmi
... • Rigel is the ankle in the constellation Orion, a hunter from the Greek myths. • Orion was a great hunter and honest man. Because of this, he became the companion of Artemis, goddess of the hunt. This made Artemis’ twin, Apollo, jealous and he sent an enormous scorpion to sting Orion. Artemis was a ...
... • Rigel is the ankle in the constellation Orion, a hunter from the Greek myths. • Orion was a great hunter and honest man. Because of this, he became the companion of Artemis, goddess of the hunt. This made Artemis’ twin, Apollo, jealous and he sent an enormous scorpion to sting Orion. Artemis was a ...
Constellation Chart Activity
... a) Find 6h of Right Ascension at the bottom of the map. The date written right below it is _________________. That means that if you go outside at 8 PM local time on that date, that line would be YOUR Meridian. b) Find Orion and Gemini along that 6h RA line. On that date at that time, Orion will be ...
... a) Find 6h of Right Ascension at the bottom of the map. The date written right below it is _________________. That means that if you go outside at 8 PM local time on that date, that line would be YOUR Meridian. b) Find Orion and Gemini along that 6h RA line. On that date at that time, Orion will be ...
Binocular Objects (MS Word)
... Sagittarius contains more Messier objects than any other constellation. The best way to identify them is to take them one by one. The beginner will have to be careful not to confuse the various objects. The principal stars of Sagittarius form the famous “Teapot” asterism. The brightest part of the M ...
... Sagittarius contains more Messier objects than any other constellation. The best way to identify them is to take them one by one. The beginner will have to be careful not to confuse the various objects. The principal stars of Sagittarius form the famous “Teapot” asterism. The brightest part of the M ...
PPTX
... If you go out at 9 PM on a clear night, turn to the south, and look up at the sky, you will see a certain group of bright stars. How will the location of those stars in the sky change if you come back at midnight or several weeks later? (A) The locations of stars in the sky are always the same (they ...
... If you go out at 9 PM on a clear night, turn to the south, and look up at the sky, you will see a certain group of bright stars. How will the location of those stars in the sky change if you come back at midnight or several weeks later? (A) The locations of stars in the sky are always the same (they ...
Time From the Perspective of a Particle Physicist
... • If we use well-understood close stars to determine the overall brightness scale of a specific class of star, then measuring the spectrum can be used to give the distance for stars > 500 LY away 1. Determine Surface Temperature + spectral class of star 2. Determine where on HR diagram should go 3. ...
... • If we use well-understood close stars to determine the overall brightness scale of a specific class of star, then measuring the spectrum can be used to give the distance for stars > 500 LY away 1. Determine Surface Temperature + spectral class of star 2. Determine where on HR diagram should go 3. ...
doc - Pocket Stars
... are performed for proper motions and parallax. Planet ephemeris data from Jet Propulsion Laboratory using the DE405 database. DE405 is JPL’s latest planetary ephemeris with correction for both nutations and librations. DE405 uses the J2000 International Celestial Reference Frame (ICRF). The portion ...
... are performed for proper motions and parallax. Planet ephemeris data from Jet Propulsion Laboratory using the DE405 database. DE405 is JPL’s latest planetary ephemeris with correction for both nutations and librations. DE405 uses the J2000 International Celestial Reference Frame (ICRF). The portion ...
m/s
... For modes for modes found in both photometry and radial velocity the 2K/Dm ratio is consistent with values found for Cepheids (2K/Dm ≈ 55) and thus radial ...
... For modes for modes found in both photometry and radial velocity the 2K/Dm ratio is consistent with values found for Cepheids (2K/Dm ≈ 55) and thus radial ...
Life cycle of low mass stars
... more massive. Created by the massive collapse of a red supergiant. Earth would be the size of a football field and weigh 100 million tons High temperature but not very bright. Gravity > internal pressure Option 2: 6b. Black hole Black hole = objects smaller and more dense than Neutron stars. Created ...
... more massive. Created by the massive collapse of a red supergiant. Earth would be the size of a football field and weigh 100 million tons High temperature but not very bright. Gravity > internal pressure Option 2: 6b. Black hole Black hole = objects smaller and more dense than Neutron stars. Created ...
Analemma - Stony Brook University
... King Acrisius of Argos Danae Zeus Perseus Dictys King Polydectes Medusa Hermes Athena the Graeae The Gorgons ...
... King Acrisius of Argos Danae Zeus Perseus Dictys King Polydectes Medusa Hermes Athena the Graeae The Gorgons ...
The Sun: Example of Radiation Laws
... a nearby galaxy, on February 23, 1987. Neutrino detectors in Ohio and Japan detected a total of about 20 neutrinos even though this supernova was 180,000 lt.-yrs. from the Earth. Radiactive Ni, Co and Ti nuclei were also observed in the ejecta. To date, no neutron star is visible within the remnant, ...
... a nearby galaxy, on February 23, 1987. Neutrino detectors in Ohio and Japan detected a total of about 20 neutrinos even though this supernova was 180,000 lt.-yrs. from the Earth. Radiactive Ni, Co and Ti nuclei were also observed in the ejecta. To date, no neutron star is visible within the remnant, ...
The birth and life of stars
... Giants undergo extensive mass loss, sometimes producing shells of ejected material that surround the entire star. Relatively young stars are metal-rich (Population I); ancient stars are metal-poor (Population II). ...
... Giants undergo extensive mass loss, sometimes producing shells of ejected material that surround the entire star. Relatively young stars are metal-rich (Population I); ancient stars are metal-poor (Population II). ...
Multiple Choice, continued
... come from Latin. • Some constellations are named for real or imaginary animals, such as Ursa Major (the great bear) or ancient gods or legendary heroes, such as Hercules or Orion. ...
... come from Latin. • Some constellations are named for real or imaginary animals, such as Ursa Major (the great bear) or ancient gods or legendary heroes, such as Hercules or Orion. ...
Boötes
Boötes /boʊˈoʊtiːz/ is a constellation in the northern sky, located between 0° and +60° declination, and 13 and 16 hours of right ascension on the celestial sphere. The name comes from the Greek Βοώτης, Boōtēs, meaning herdsman or plowman (literally, ox-driver; from βοῦς bous “cow”). The ""ö"" in the name is a diaeresis, not an umlaut, meaning that each 'o' is to be pronounced separately.One of the 48 constellations described by the 2nd century astronomer Ptolemy, Boötes is now one of the 88 modern constellations. It contains the fourth brightest star in the night sky, the orange-hued Arcturus. Boötes is home to many other bright stars, including eight above the fourth magnitude and an additional 21 above the fifth magnitude, making a total of 29 stars easily visible to the naked eye.