The Milky Way Galaxy
... • Surveys of Giant Molecular Clouds (GMCs) are likely to trace the spiral arms since these are sites of star formation • positions interior to Sun’s orbit in Galaxy have some distance ambiguity •Less distance ambiguity outside of Solar orbit, and better evidence of arm-like morphology ...
... • Surveys of Giant Molecular Clouds (GMCs) are likely to trace the spiral arms since these are sites of star formation • positions interior to Sun’s orbit in Galaxy have some distance ambiguity •Less distance ambiguity outside of Solar orbit, and better evidence of arm-like morphology ...
MilkyWay
... • Surveys of Giant Molecular Clouds (GMCs) are likely to trace the spiral arms since these are sites of star formation • positions interior to Sun’s orbit in Galaxy have some distance ambiguity •Less distance ambiguity outside of Solar orbit, and better evidence of arm-like morphology ...
... • Surveys of Giant Molecular Clouds (GMCs) are likely to trace the spiral arms since these are sites of star formation • positions interior to Sun’s orbit in Galaxy have some distance ambiguity •Less distance ambiguity outside of Solar orbit, and better evidence of arm-like morphology ...
What is Astronomy?
... A natural human tendency is to see patterns and relationships between objects even when no true connection exists, and people long ago connected the brightest stars into configurations called constellations. • In the Northern Hemisphere, most constellations were named after mythological heroes and a ...
... A natural human tendency is to see patterns and relationships between objects even when no true connection exists, and people long ago connected the brightest stars into configurations called constellations. • In the Northern Hemisphere, most constellations were named after mythological heroes and a ...
What If Earth Became Tidally Locked?
... of shape, from a ball into an ellipse. No water is necessary for this to happen. Even solid rock stretched out — the surfaces of both the Earth and the Moon stretch toward each other. This stretching doesn't happen immediately, though. It takes time for the planet to stretch its solid mass towards t ...
... of shape, from a ball into an ellipse. No water is necessary for this to happen. Even solid rock stretched out — the surfaces of both the Earth and the Moon stretch toward each other. This stretching doesn't happen immediately, though. It takes time for the planet to stretch its solid mass towards t ...
31-2 - Fremont Peak Observatory
... minutes east of G-Scorpii is the globular cluster NGC -6441. NGC-6441 is an 8th magnitude globular about 35,000 light years from the earth. In a small telescope at low power or binoculars the G-Scorpii/NGC6441 pair looks like a double star. With a 6” or larger scope the true nature of NGC-6441 can b ...
... minutes east of G-Scorpii is the globular cluster NGC -6441. NGC-6441 is an 8th magnitude globular about 35,000 light years from the earth. In a small telescope at low power or binoculars the G-Scorpii/NGC6441 pair looks like a double star. With a 6” or larger scope the true nature of NGC-6441 can b ...
My power point presentation on spectroscopy of stars (ppt file)
... • Essentially the only information a star sends to us is its electromagnetic radiation • Can we dissect the radiation from a star to find out anything interesting about the star? 21 October 2004 ...
... • Essentially the only information a star sends to us is its electromagnetic radiation • Can we dissect the radiation from a star to find out anything interesting about the star? 21 October 2004 ...
2008F-ExtraSolarPlanets-Smith
... mass of Jupiter. The data shows that fainter stars can be seen with planets of smaller mass. Analyzing this information using the center of mass and Kepler’s Law shows why this is true. As the mass of the planet gets smaller and the mass of the moon is kept constant, the change in the center of mass ...
... mass of Jupiter. The data shows that fainter stars can be seen with planets of smaller mass. Analyzing this information using the center of mass and Kepler’s Law shows why this is true. As the mass of the planet gets smaller and the mass of the moon is kept constant, the change in the center of mass ...
Today in Astronomy 102: electron degeneracy pressure and white
... Theory of white dwarfs Fowler applied his theory of degeneracy pressure, soon after he invented it (1926), to white dwarf stars. His result: q Stars supported by degeneracy pressure instead of gas pressure would have sizes close to that determined from astronomical observations of Sirius B. Soon th ...
... Theory of white dwarfs Fowler applied his theory of degeneracy pressure, soon after he invented it (1926), to white dwarf stars. His result: q Stars supported by degeneracy pressure instead of gas pressure would have sizes close to that determined from astronomical observations of Sirius B. Soon th ...
TISHTRIYA - Earth`s second Sun
... Although, to the naked eye, it looks like one Star it is composed of two Stars. In different research data there seems to be a wide inconsistency in the description of the size and brightness of each of the two stars. The larger and brighter of the two, Sirius A, averages 2-3 times the mass of our s ...
... Although, to the naked eye, it looks like one Star it is composed of two Stars. In different research data there seems to be a wide inconsistency in the description of the size and brightness of each of the two stars. The larger and brighter of the two, Sirius A, averages 2-3 times the mass of our s ...
Evolution of High
... star…However, none has been found so far. – The neutron star is there, but it is not pulling in materials. Without materials around it, no X-ray emission can be detected. – Maybe a black hole (Chapter 13), instead of a neutron star, was formed? ...
... star…However, none has been found so far. – The neutron star is there, but it is not pulling in materials. Without materials around it, no X-ray emission can be detected. – Maybe a black hole (Chapter 13), instead of a neutron star, was formed? ...
the curious incident of the dog in the night-time
... riddle or puzzle1 ) states that if the universe is infinite and filled uniformly with stars, then the brightness of the night sky should be equivalent to the day. As an analogy think about the old adage that the forest cannot be seen for the trees. When I am deep in a forest, in every direction my v ...
... riddle or puzzle1 ) states that if the universe is infinite and filled uniformly with stars, then the brightness of the night sky should be equivalent to the day. As an analogy think about the old adage that the forest cannot be seen for the trees. When I am deep in a forest, in every direction my v ...
Twenty Seven Planeta..
... children are afraid of the dark unless the number of hand-holding adults is at least one for two children. (Most first graders are not afraid of the dark if warned in advance.) If you have a kindergarten class that you would like to bring to the planetarium, please give me a call. Children at this a ...
... children are afraid of the dark unless the number of hand-holding adults is at least one for two children. (Most first graders are not afraid of the dark if warned in advance.) If you have a kindergarten class that you would like to bring to the planetarium, please give me a call. Children at this a ...
Encyclopedia of Optical Engineering Stellar Evolution
... For stars under 0.5 M , the temperature and pressure inside the degenerate electron core will never be great enough to begin the fusion of helium, and these stars will live for hundreds of billions of years as their hydrogen is slowly consumed. For stars in the 0.5 to 4 M range, a different future ...
... For stars under 0.5 M , the temperature and pressure inside the degenerate electron core will never be great enough to begin the fusion of helium, and these stars will live for hundreds of billions of years as their hydrogen is slowly consumed. For stars in the 0.5 to 4 M range, a different future ...
Testing - Montgomery College
... • Difference between a planet’s orbital (sidereal) and synodic period depends on how far planet moves in one Earth year for outer planets ...
... • Difference between a planet’s orbital (sidereal) and synodic period depends on how far planet moves in one Earth year for outer planets ...
chapterS1time - Empyrean Quest Publishers
... • Difference between a planet’s orbital (sidereal) and synodic period depends on how far planet moves in one Earth year for outer planets ...
... • Difference between a planet’s orbital (sidereal) and synodic period depends on how far planet moves in one Earth year for outer planets ...
TRANSIT
... this star. Incidentally, this star is believed to have originally been part of the same star system as the “runaway” stars AU Aurigae and mu Columbae before these two were violently ejected leaving iota Orionis behind at their mutual place of formation. Staying within Orion, have a look for the emis ...
... this star. Incidentally, this star is believed to have originally been part of the same star system as the “runaway” stars AU Aurigae and mu Columbae before these two were violently ejected leaving iota Orionis behind at their mutual place of formation. Staying within Orion, have a look for the emis ...
Chapter S1 How do we define the day, month, year, and planetary
... –! Sidereal day (Earth’s rotation with respect to stars) is 4 minutes shorter than a solar day. –! Sidereal month (27.3 day orbit of moon) is shorter then synodic month (29.5 day cycle of phases). –! Tropical year (cycle of seasons) is 20 minutes shorter than sidereal years (time to orbit Sun). ...
... –! Sidereal day (Earth’s rotation with respect to stars) is 4 minutes shorter than a solar day. –! Sidereal month (27.3 day orbit of moon) is shorter then synodic month (29.5 day cycle of phases). –! Tropical year (cycle of seasons) is 20 minutes shorter than sidereal years (time to orbit Sun). ...
Impossible planets.
... light-years away. What they actually saw was a rhythmic shifting of the star’s spectral lines. Like all stars, 51 Peg has gases in its atmosphere that intercept specific wavelengths of light and keep them from reaching Earth. When you smear the starlight into its constituent colors with a spectromet ...
... light-years away. What they actually saw was a rhythmic shifting of the star’s spectral lines. Like all stars, 51 Peg has gases in its atmosphere that intercept specific wavelengths of light and keep them from reaching Earth. When you smear the starlight into its constituent colors with a spectromet ...
every star in the cluster.
... giants, continually forming from evolving stars near the turnoff. But there were originally many stars that were even more massive, that became red giants for a time, and that have moved on to a different final form. The cluster contains a huge number of ‘stellar remnants.’ [Details to follow!] ...
... giants, continually forming from evolving stars near the turnoff. But there were originally many stars that were even more massive, that became red giants for a time, and that have moved on to a different final form. The cluster contains a huge number of ‘stellar remnants.’ [Details to follow!] ...
Star Maps - Astronomy Outreach - The University of Texas at Austin
... Part II: Making and Using the Star Wheels (20 minutes) - inside A. Making the Star Wheel (omit this part if you use purchased planispheres) Materials: Uncle Al's Sky Wheel Make "Uncle Al's Sky Wheel." Allow students at least 20-minutes to complete their wheels. There are two wheels: one with con ...
... Part II: Making and Using the Star Wheels (20 minutes) - inside A. Making the Star Wheel (omit this part if you use purchased planispheres) Materials: Uncle Al's Sky Wheel Make "Uncle Al's Sky Wheel." Allow students at least 20-minutes to complete their wheels. There are two wheels: one with con ...
MS 1512–CB58 - Columbia University Department of Astronomy
... Thanks to its gravitationally lensed nature, the z = 2.7276 galaxy MS 1512−cB58 (or cB58 for short) provides an unusually clear window on the population of starforming galaxies identified at these redshifts through the Lyman break technique (Steidel et al., 1996). Discovered by Yee et al. (1996), cB ...
... Thanks to its gravitationally lensed nature, the z = 2.7276 galaxy MS 1512−cB58 (or cB58 for short) provides an unusually clear window on the population of starforming galaxies identified at these redshifts through the Lyman break technique (Steidel et al., 1996). Discovered by Yee et al. (1996), cB ...
The Doppler Shift
... White light splits into the colors of the rainbow when passed through a prism. ...
... White light splits into the colors of the rainbow when passed through a prism. ...
February 2010 Vol 21 No 2 - Cape Cod Astronomical Society
... month is magnitude 6 Vesta. Vesta moves around in Leo’s neck just below Mars from now until well into the summer as shown on the finder chart on this page. At opposition on February 18th, it threads the gap between bright stars Gamma Leonis (magnitude 2.5) and 40 Leonis (magnitude 4.8), which is loc ...
... month is magnitude 6 Vesta. Vesta moves around in Leo’s neck just below Mars from now until well into the summer as shown on the finder chart on this page. At opposition on February 18th, it threads the gap between bright stars Gamma Leonis (magnitude 2.5) and 40 Leonis (magnitude 4.8), which is loc ...
Corvus (constellation)
Corvus is a small constellation in the Southern Celestial Hemisphere. Its name comes from the Latin word ""raven"" or ""crow"". It includes only 11 stars with brighter than 4.02 magnitudes. One of the 48 constellations listed by the 2nd-century astronomer Ptolemy, it remains one of the 88 modern constellations. The four brightest stars, Gamma, Delta, Epsilon, and Beta Corvi from a distinctive quadrilateral in the night sky. The young star Eta Corvi has been found to have two debris disks.