Galaxies - SD43 Teacher Sites
... Carbon dioxide is a product of cellular respiration, and oxygen is a product of photosynthesis. If these gases are found in the atmosphere of a planet, it may indicate the presence of some form of life. Astronomers have already detected more than 200 planets revolving around stars thousands of trill ...
... Carbon dioxide is a product of cellular respiration, and oxygen is a product of photosynthesis. If these gases are found in the atmosphere of a planet, it may indicate the presence of some form of life. Astronomers have already detected more than 200 planets revolving around stars thousands of trill ...
Telescopes: More Than Meets the Eye
... 3. Why does a stick appear to bend when it is placed partially in water? (refraction) Does it really bend? (no) What is bending? (the light) How does this relate to what a lens does in a telescope? 4. Why does a lens bend light? (whenever light passes through a substance it is bent and different sub ...
... 3. Why does a stick appear to bend when it is placed partially in water? (refraction) Does it really bend? (no) What is bending? (the light) How does this relate to what a lens does in a telescope? 4. Why does a lens bend light? (whenever light passes through a substance it is bent and different sub ...
The Cosmic Perspective Other Planetary Systems: The New Science
... than the light reflected from its planets. • Planets are close to their stars, relative to the distance from us to the star. – This is like being in San Francisco and trying to see a pinhead 15 meters from a grapefruit in Washington, D.C. ...
... than the light reflected from its planets. • Planets are close to their stars, relative to the distance from us to the star. – This is like being in San Francisco and trying to see a pinhead 15 meters from a grapefruit in Washington, D.C. ...
Chapter 13 (Properties of Stars)
... 24. The largest known stars. 25. Most low mass, red stars in our neighborhood. 26. Sirius B, the hot white dwarf only 1/1000th as luminous as the sun. 27. The vast majority of bright blue naked eye stars. 28. Most naked eye stars that appear red or orange in color. 29. The most massive young stars. ...
... 24. The largest known stars. 25. Most low mass, red stars in our neighborhood. 26. Sirius B, the hot white dwarf only 1/1000th as luminous as the sun. 27. The vast majority of bright blue naked eye stars. 28. Most naked eye stars that appear red or orange in color. 29. The most massive young stars. ...
Semester 2 Course Review
... What impacts have humans had on global climate change? What role does the sun play in atmospheric and oceanic cycles? What are some ways that oceans influence climate change? How is CO2 absorbed in the ocean and how does this effect climate? What is weather? How do the different air masses’ names an ...
... What impacts have humans had on global climate change? What role does the sun play in atmospheric and oceanic cycles? What are some ways that oceans influence climate change? How is CO2 absorbed in the ocean and how does this effect climate? What is weather? How do the different air masses’ names an ...
From planetesimals to planetary systems: a hardles race
... Single size particles in the simulations (small particles may contribute significantly to the the growth of larger bodies). Each particle is representative of many particles (pre-clumping?) Drag is computed from nodes around the particle and back reaction acts on the nodes. What is the effect ...
... Single size particles in the simulations (small particles may contribute significantly to the the growth of larger bodies). Each particle is representative of many particles (pre-clumping?) Drag is computed from nodes around the particle and back reaction acts on the nodes. What is the effect ...
Astronomy - Great Smoky Mountains Institute at Tremont
... lamp, of course, is the sun. Have each student stand with his or her back to the lamp and hold the moon ball up at arm’s length so that some light shines on it. Explain that just like the Earth has day and night, so does the moon. Ask them to point to where it is night on their moons. Why is it nigh ...
... lamp, of course, is the sun. Have each student stand with his or her back to the lamp and hold the moon ball up at arm’s length so that some light shines on it. Explain that just like the Earth has day and night, so does the moon. Ask them to point to where it is night on their moons. Why is it nigh ...
PDF - Amazing Space, STScI
... their resident black holes. The survey revealed that a black hole’s mass is dependent on the weight of its host galaxy’s bulge, a spherical region consisting of stars in a galaxy’s central region. Large galaxies, for example, have massive black holes; less massive galaxies have smaller black holes. ...
... their resident black holes. The survey revealed that a black hole’s mass is dependent on the weight of its host galaxy’s bulge, a spherical region consisting of stars in a galaxy’s central region. Large galaxies, for example, have massive black holes; less massive galaxies have smaller black holes. ...
Star and Earth Chemistry Lecture Notes (PDF
... How did our solar system form? The Solar System Solar system is isolated - distance to nearest stars exceeding 5×104 times its diameter Solar system formed only 4.6 × 109 y ago - it didn’t exist for most of the history of the universe (13.7 × 109 y) It is now agreed that sun and planets have a comm ...
... How did our solar system form? The Solar System Solar system is isolated - distance to nearest stars exceeding 5×104 times its diameter Solar system formed only 4.6 × 109 y ago - it didn’t exist for most of the history of the universe (13.7 × 109 y) It is now agreed that sun and planets have a comm ...
Beyond Pluto
... PLANETS lack a standard definition. If a body orbits a sun and was made spherical by its own gravity, astronomers tend to call it a planet. Yet that definition would include at least four asteroids and dozens of Kuiper belt objects. ASTEROIDS (a.k.a. minor planets) are rocky, metallic, or carbonaceo ...
... PLANETS lack a standard definition. If a body orbits a sun and was made spherical by its own gravity, astronomers tend to call it a planet. Yet that definition would include at least four asteroids and dozens of Kuiper belt objects. ASTEROIDS (a.k.a. minor planets) are rocky, metallic, or carbonaceo ...
File - Mr. Gray`s Class
... Developed a star catalogue of 850 stars used later by Ptolemy Developed the currently used magnitude scale of 1 – 6 Discovered the first nova Measured the distance to the moon using parallax Used different views of a solar eclipse ...
... Developed a star catalogue of 850 stars used later by Ptolemy Developed the currently used magnitude scale of 1 – 6 Discovered the first nova Measured the distance to the moon using parallax Used different views of a solar eclipse ...
- EPJ Web of Conferences
... Figure 2. (a) Mean metallicity, and (b) metallicity dispersion, [Fe/H], vs. system absolute magnitude, MV ,total , for the dwarf galaxy satellites of the Milky Way and the massive globular cluster Cen. Figure from [10]. ...
... Figure 2. (a) Mean metallicity, and (b) metallicity dispersion, [Fe/H], vs. system absolute magnitude, MV ,total , for the dwarf galaxy satellites of the Milky Way and the massive globular cluster Cen. Figure from [10]. ...
Planet Mercury.
... Mercury has just 38% the gravity of Earth, this is too little to hold on to what atmosphere it has which is blown away by solar winds. However while gases escape into space they are constantly being replenished at the same time by the same solar winds, radioactive decay and dust caused by micromet ...
... Mercury has just 38% the gravity of Earth, this is too little to hold on to what atmosphere it has which is blown away by solar winds. However while gases escape into space they are constantly being replenished at the same time by the same solar winds, radioactive decay and dust caused by micromet ...
Lecture Eleven (Powerpoint format)
... Curtis-Shapley debate is complex enough that it took until the late 20th century before astronomers began to conclude that our own Milky Way probably is a weakly-barred spiral itself. ...
... Curtis-Shapley debate is complex enough that it took until the late 20th century before astronomers began to conclude that our own Milky Way probably is a weakly-barred spiral itself. ...
Star
... • During the outburst, the outer layer of the star is ejected at high speed. • After reaching maximum brightness in a few days, the nova slowly returns in a year or so to its original brightness. ...
... • During the outburst, the outer layer of the star is ejected at high speed. • After reaching maximum brightness in a few days, the nova slowly returns in a year or so to its original brightness. ...
Can TMT Image Habitable Planets ?
... Habitable planets can be imaged on ELTs (physics and nature are on our side) ELTs can operate at ~1e-5/1e-6 raw contrast and photon-noise limited detection limit → characterization (spectroscopy) of 1e-8 habitable planets accessible around dozens of nearby stars, mainly near-IR/visible Ideal targets ...
... Habitable planets can be imaged on ELTs (physics and nature are on our side) ELTs can operate at ~1e-5/1e-6 raw contrast and photon-noise limited detection limit → characterization (spectroscopy) of 1e-8 habitable planets accessible around dozens of nearby stars, mainly near-IR/visible Ideal targets ...
Lecture 1
... position of Star A as seen in July and label it “Star A July”. Describe how Star A would appear to move among the distant stars as Earth orbits the Sun counterclockwise from January of one year, through July, to January of the following year. Consider two stars (C and D) that both exhibit parallax. ...
... position of Star A as seen in July and label it “Star A July”. Describe how Star A would appear to move among the distant stars as Earth orbits the Sun counterclockwise from January of one year, through July, to January of the following year. Consider two stars (C and D) that both exhibit parallax. ...
Rare Earth hypothesis
In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.