Diversity of Life Card Game
... place in space and the relative distances from us of objects in the universe. When facilitating this game, get participants to think. Strive to be “a guide on the side” by encouraging questions, asking your own questions, and offering hints rather than imposing “right and wrong” answers. In this way ...
... place in space and the relative distances from us of objects in the universe. When facilitating this game, get participants to think. Strive to be “a guide on the side” by encouraging questions, asking your own questions, and offering hints rather than imposing “right and wrong” answers. In this way ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... This tells us that … • The value of 6 solar masses per solar luminosity tells us that most of the matter is dimmer than the Sun out to the Sun’s orbit • Mass-to-Light ratio of our Sun is 1 solar mass per solar luminosity • So most matter is dimmer than the Sun ...
... This tells us that … • The value of 6 solar masses per solar luminosity tells us that most of the matter is dimmer than the Sun out to the Sun’s orbit • Mass-to-Light ratio of our Sun is 1 solar mass per solar luminosity • So most matter is dimmer than the Sun ...
File - YEAR 11 EBSS PHYSICS DETAILED STUDIES
... 1 parsec is the distance to a star that would show 1 arcsec of parallax. (206 265 AU) ...
... 1 parsec is the distance to a star that would show 1 arcsec of parallax. (206 265 AU) ...
Branches of Earth Science
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
... Light Year- Astronomers use light years to measure the distances ______________ stars o A light year is the distance that light ______________ in one year 9,460,730,472,580.8 km 5,878,630,000,000 miles Parallax- the apparent change in the ______________ of a star in the sky. o The change is due ...
EvoluGon of high mass stars Solar-‐type stars end their lives by
... At first it was not clear what the source of these radio pulses could be because of the extremely short period. The discovery of a pulsar in the Crab nebula, a well-‐known supernova remnant (t ...
... At first it was not clear what the source of these radio pulses could be because of the extremely short period. The discovery of a pulsar in the Crab nebula, a well-‐known supernova remnant (t ...
Earth`s Motion and Seasons
... The Hubble Telescope is a reflecting telescope with a mirror 2.4 meters in diameter. Because it orbits Earth above the atmosphere, it can produce very detailed images. Hubble images have changed how astronomers view the universe. The most recent addition to NASA’s lineup of telescopes in space is th ...
... The Hubble Telescope is a reflecting telescope with a mirror 2.4 meters in diameter. Because it orbits Earth above the atmosphere, it can produce very detailed images. Hubble images have changed how astronomers view the universe. The most recent addition to NASA’s lineup of telescopes in space is th ...
The HR Diagram (PowerPoint version)
... Let’s metaphorically ‘push and pull’ the stars until they are all at a common distance. This alllows us to intercompare their actual intrinsic brightnesses – how bright they really are (their ‘absolute magnitudes’). To do so, go under the ‘Options’ and ‘HR-Diagram Options’ tabs, and turn on the ‘Use ...
... Let’s metaphorically ‘push and pull’ the stars until they are all at a common distance. This alllows us to intercompare their actual intrinsic brightnesses – how bright they really are (their ‘absolute magnitudes’). To do so, go under the ‘Options’ and ‘HR-Diagram Options’ tabs, and turn on the ‘Use ...
www.aavso.org
... Photometry is one of many areas in astronomy where amateurs can make useful contributions. Other areas include astrometry, occultation timings, and recording high quality observations of solar system objects. ...
... Photometry is one of many areas in astronomy where amateurs can make useful contributions. Other areas include astrometry, occultation timings, and recording high quality observations of solar system objects. ...
Today: Magnitude Terminology Photometry Applications Reading
... Vega); typically obtained by calculating differential magnitude w.r.t. a known standard star. ...
... Vega); typically obtained by calculating differential magnitude w.r.t. a known standard star. ...
Stars - PAMS-Doyle
... • Stars are assigned spectral types of O,B, A, F, G, K, and M which are based on their temperature • Each type is subdivided into the numbers 0-9 • Provide information about the stars composition and temperature ...
... • Stars are assigned spectral types of O,B, A, F, G, K, and M which are based on their temperature • Each type is subdivided into the numbers 0-9 • Provide information about the stars composition and temperature ...
Constellation
... stellar blast is slamming into regions along the ring's inner regions, heating them up, and causing them to glow. The ring, about a light-year across, was probably shed by the star about 20,000 years before it exploded. Astronomers detected the first bright spot in 1997, but now they see dozens of s ...
... stellar blast is slamming into regions along the ring's inner regions, heating them up, and causing them to glow. The ring, about a light-year across, was probably shed by the star about 20,000 years before it exploded. Astronomers detected the first bright spot in 1997, but now they see dozens of s ...
Distant galaxies and quasars The ages of things Light
... • In the past they were both much more numerous and substantially more luminous ...
... • In the past they were both much more numerous and substantially more luminous ...
Stellar Pops 2
... populations to Virgo Cluster galaxies • CMD studies – Main-sequence turnoff ages – HB/red clump morphology – [Fe/H] and [Fe/H] spread from RGB morphology ...
... populations to Virgo Cluster galaxies • CMD studies – Main-sequence turnoff ages – HB/red clump morphology – [Fe/H] and [Fe/H] spread from RGB morphology ...
Galaxy1
... mass because that is what we find near us 2. Most stars must be high mass because throughout the galaxy we mostly see luminous stars 3. If we combine the two H-R diagrams there are about the same number of high and low mass stars in the Galaxy ...
... mass because that is what we find near us 2. Most stars must be high mass because throughout the galaxy we mostly see luminous stars 3. If we combine the two H-R diagrams there are about the same number of high and low mass stars in the Galaxy ...
Heading for the Pole - MNASSA Page
... star Mu Octantis. This soft round glow in a NNE-SSW direction, with an outstanding bright star-like nucleus and a soft halo around it, was relatively easy seen. A string of four 11 magnitude stars cups this galaxy towards the NE. The open star cluster Melotte 227 is situated about 4.8 degrees W of N ...
... star Mu Octantis. This soft round glow in a NNE-SSW direction, with an outstanding bright star-like nucleus and a soft halo around it, was relatively easy seen. A string of four 11 magnitude stars cups this galaxy towards the NE. The open star cluster Melotte 227 is situated about 4.8 degrees W of N ...
Parallax, Event Horizon, HR diagrams equation
... Physics : distance to the stars and counting the stars "1 Light Year is the distance traveled by light in one year." 1 light year (ly) is equivalent to: 63,270 AU Closer stars could appear larger. More distant stars could be very large, but seem small. How can we tell which stars are farther away? ...
... Physics : distance to the stars and counting the stars "1 Light Year is the distance traveled by light in one year." 1 light year (ly) is equivalent to: 63,270 AU Closer stars could appear larger. More distant stars could be very large, but seem small. How can we tell which stars are farther away? ...
Chapter 26 Book Questions
... The Big Bang Theory (page 854) 29. Astronomers theorize that the universe came into being in an event called the _________________. 30. Circle the letter of each sentence that is true according to the big bang theory. A. The matter and energy in the universe was once concentrated in a very hot regi ...
... The Big Bang Theory (page 854) 29. Astronomers theorize that the universe came into being in an event called the _________________. 30. Circle the letter of each sentence that is true according to the big bang theory. A. The matter and energy in the universe was once concentrated in a very hot regi ...
Sequencing the Stars
... seconds). Then, I used the freeware program S OURCE E XTRACTOR, commonly referred to as SExtractor, to identify all the stars in these images and for each one an estimate of its color and brightness. SExtractor produces a plain text file listing data for each star, one star per line. I culled from t ...
... seconds). Then, I used the freeware program S OURCE E XTRACTOR, commonly referred to as SExtractor, to identify all the stars in these images and for each one an estimate of its color and brightness. SExtractor produces a plain text file listing data for each star, one star per line. I culled from t ...
Print this PDF
... A galaxy is a massive complex, or system, of stars, remnants of stars, an interstellar medium of gas and dust, and dark matter. Some include multiple star systems, clusters, and interstellar clouds. Galaxies are bound by gravity and contain millions to tril ...
... A galaxy is a massive complex, or system, of stars, remnants of stars, an interstellar medium of gas and dust, and dark matter. Some include multiple star systems, clusters, and interstellar clouds. Galaxies are bound by gravity and contain millions to tril ...
ABSOLUTE AND APPARENT MAGNITUDES
... The ability to determine the brightness of stars as seen from alien worlds could be quite handy when it comes to making a description of a world seem more ‘real’. To do this, you first need to know what magnitudes are. The Magnitude scale is basically the way that astronomers quantify the brightness ...
... The ability to determine the brightness of stars as seen from alien worlds could be quite handy when it comes to making a description of a world seem more ‘real’. To do this, you first need to know what magnitudes are. The Magnitude scale is basically the way that astronomers quantify the brightness ...
Stellar Evolution
... eventually run out of fuel and collapse due to gravity Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, followed by collapse to white dwarf by blowing out their oute ...
... eventually run out of fuel and collapse due to gravity Low Mass Stars – consume fuel at a slow rate, may remain on main-sequence for up to 100 billion years, end up collapsing into white dwarfs Medium Mass Stars – go into red-giant stage, followed by collapse to white dwarf by blowing out their oute ...
Our Star - the Sun
... This is related to a 22-year cycle in which the surface magnetic field increases, decreases, and then increases again with the opposite polarity The average number of sunspots increases and decreases in a regular cycle of approximately 11 years, with reversed magnetic polarities from one 11year cycl ...
... This is related to a 22-year cycle in which the surface magnetic field increases, decreases, and then increases again with the opposite polarity The average number of sunspots increases and decreases in a regular cycle of approximately 11 years, with reversed magnetic polarities from one 11year cycl ...
Review4
... What is the origin of the 21 cm line and how do we utilize it in astronomy? What are the various types of nebulae in the Milky Way? ...
... What is the origin of the 21 cm line and how do we utilize it in astronomy? What are the various types of nebulae in the Milky Way? ...
Cosmic distance ladder
The cosmic distance ladder (also known as the extragalactic distance scale) is the succession of methods by which astronomers determine the distances to celestial objects. A real direct distance measurement of an astronomical object is possible only for those objects that are ""close enough"" (within about a thousand parsecs) to Earth. The techniques for determining distances to more distant objects are all based on various measured correlations between methods that work at close distances and methods that work at larger distances. Several methods rely on a standard candle, which is an astronomical object that has a known luminosity.The ladder analogy arises because no one technique can measure distances at all ranges encountered in astronomy. Instead, one method can be used to measure nearby distances, a second can be used to measure nearby to intermediate distances, and so on. Each rung of the ladder provides information that can be used to determine the distances at the next higher rung.