View Diary of Astronomical Events - Astronomical Society of Singapore
... cloud bands. A good pair of binoculars should allow you to see Jupiter's four largest moons, appearing as bright dots on either side of the planet. February 19 - New Moon. The Moon will be directly between the Earth and the Sun and will not be visible from Earth. This phase occurs at 07:47 hrs. Thi ...
... cloud bands. A good pair of binoculars should allow you to see Jupiter's four largest moons, appearing as bright dots on either side of the planet. February 19 - New Moon. The Moon will be directly between the Earth and the Sun and will not be visible from Earth. This phase occurs at 07:47 hrs. Thi ...
92 The Nearest Star: The Sun
... Among the many billions of stars in our galaxy, the Sun is average in size and temperature. When you look at the night sky with your naked eye from anywhere on Earth, you can see up to 8,000 stars. With a telescope you will see many more. Still others can only be detected with other technologies. Th ...
... Among the many billions of stars in our galaxy, the Sun is average in size and temperature. When you look at the night sky with your naked eye from anywhere on Earth, you can see up to 8,000 stars. With a telescope you will see many more. Still others can only be detected with other technologies. Th ...
Lecture 30 Solar System Formation and Early Evolution
... However, although equilibrium condensation explains a lot of what we see, the expected temperature gradient from the sun to Pluto does not result in observed variations in gas contents of the outer planets (i.e., Saturn and Jupiter have too much H and He; Uranus and Neptune don't have ...
... However, although equilibrium condensation explains a lot of what we see, the expected temperature gradient from the sun to Pluto does not result in observed variations in gas contents of the outer planets (i.e., Saturn and Jupiter have too much H and He; Uranus and Neptune don't have ...
Earth and Space Science
... Give a simple explanation of what a mineral is and some examples, e.g., quartz, mica. Identify the physical properties of minerals (hardness, color, luster, cleavage, and streak), and explain how minerals can be tested for these different physical properties. Identify the three categories of r ...
... Give a simple explanation of what a mineral is and some examples, e.g., quartz, mica. Identify the physical properties of minerals (hardness, color, luster, cleavage, and streak), and explain how minerals can be tested for these different physical properties. Identify the three categories of r ...
Supernovae – the biggest bangs since the Big Bang
... (also known as a “Type Ia supernova”). Imagine you made a series of bombs, each with the same amount of the same material. The bombs would all have about the same power, right? The same is true of white dwarf supernovae. If each one is the explosion of 1.4 solar masses of mostly carbon and oxygen ...
... (also known as a “Type Ia supernova”). Imagine you made a series of bombs, each with the same amount of the same material. The bombs would all have about the same power, right? The same is true of white dwarf supernovae. If each one is the explosion of 1.4 solar masses of mostly carbon and oxygen ...
Investigate Planets, Stars, Galaxies, and the Universe
... useful when trying to imagine the scale of our solar system. But this time, pretend that the soccer ball-sized object is our Sun. Picture this soccer ball at home plate on a baseball diamond. At this new scale, the planet Mercury would look like a pellet of birdseed rounding the Sun at a distance of ...
... useful when trying to imagine the scale of our solar system. But this time, pretend that the soccer ball-sized object is our Sun. Picture this soccer ball at home plate on a baseball diamond. At this new scale, the planet Mercury would look like a pellet of birdseed rounding the Sun at a distance of ...
The Temperature of Stars
... – The apparent motion of stars is the motion visible to the unaided eye. – Apparent motion is caused by the movement of Earth. – The rotation of Earth causes the apparent motion of stars sees as though the stars are moving counter-clockwise around the North Star. – Earth’s revolution around the sun ...
... – The apparent motion of stars is the motion visible to the unaided eye. – Apparent motion is caused by the movement of Earth. – The rotation of Earth causes the apparent motion of stars sees as though the stars are moving counter-clockwise around the North Star. – Earth’s revolution around the sun ...
Document
... The orbit is an ellipse. Thus, the planet must move faster when near perihelion than it does near aphelion. This is because the net tangential force involved in an elliptical orbit is zero. As the areal velocity is proportional to angular momentum, Kepler's second law is a statement of the law of co ...
... The orbit is an ellipse. Thus, the planet must move faster when near perihelion than it does near aphelion. This is because the net tangential force involved in an elliptical orbit is zero. As the areal velocity is proportional to angular momentum, Kepler's second law is a statement of the law of co ...
April - Magic Valley Astronomical Society
... and more may reveal its cigar-shaped profile surrounding circular core. Next, try for M99, just south of the kite's tail. It’s not significantly easier to see, glowing dimly at 10th magnitude. Can you spot it, as well? If you can, then try your luck with an even more challenging target. M100 is rate ...
... and more may reveal its cigar-shaped profile surrounding circular core. Next, try for M99, just south of the kite's tail. It’s not significantly easier to see, glowing dimly at 10th magnitude. Can you spot it, as well? If you can, then try your luck with an even more challenging target. M100 is rate ...
HR Diagram (Temperature Versus Absolute Magnitude)
... • This distance is one Astronomical Unit (AU) • Astronomical units can be used to measure distances within our solar systems ...
... • This distance is one Astronomical Unit (AU) • Astronomical units can be used to measure distances within our solar systems ...
Venus
... Venus is the __________________________ planet from the Sun in our Solar System. It is the _________________________ planet in our Solar System. This planet is covered with fastmoving sulphuric acid clouds which trap __________________________ from the Sun. Its thick atmosphere is mostly carbon diox ...
... Venus is the __________________________ planet from the Sun in our Solar System. It is the _________________________ planet in our Solar System. This planet is covered with fastmoving sulphuric acid clouds which trap __________________________ from the Sun. Its thick atmosphere is mostly carbon diox ...
pptx - University of Rochester
... • Using orbital elements based on observed positions of planets • Different mass planetesimal disks • Start with an unstable planetary configuration. Can the planetesimal disk can stabilize the system via eccentricity damping? No: Too much disk mass is required to make this possible • Start with a s ...
... • Using orbital elements based on observed positions of planets • Different mass planetesimal disks • Start with an unstable planetary configuration. Can the planetesimal disk can stabilize the system via eccentricity damping? No: Too much disk mass is required to make this possible • Start with a s ...
the Full Chapter 6 -
... On 9 March 2004 astronomers at NASA and ESA released the deepest-ever image of the distant Universe, showing no less than ten thousand galaxies out to distances of some thirteen billion light-years. This Hubble Ultra Deep Field (left) still serves as a rich cosmological goldmine, providing scientist ...
... On 9 March 2004 astronomers at NASA and ESA released the deepest-ever image of the distant Universe, showing no less than ten thousand galaxies out to distances of some thirteen billion light-years. This Hubble Ultra Deep Field (left) still serves as a rich cosmological goldmine, providing scientist ...
The Sun!!
... Sunspots are storm-like occurrences on the Sun's surface. They are about 1000˚c cooler than the Sun’s surface so they ...
... Sunspots are storm-like occurrences on the Sun's surface. They are about 1000˚c cooler than the Sun’s surface so they ...
Time and Diurnal Motion
... altitude of north star as travel south • Estimates circumference of earth is 74,000 km ...
... altitude of north star as travel south • Estimates circumference of earth is 74,000 km ...
Slide 1
... The farthest dwarf planet, Eris, can be as far as 12,700,000,000 miles from the Sun. On our scale, Eris would be 12,700” ...
... The farthest dwarf planet, Eris, can be as far as 12,700,000,000 miles from the Sun. On our scale, Eris would be 12,700” ...
Chapter 7 Study Guide
... A. If the merry-go-round were to rotate at 0.10 Hz, what is the centripetal force acting on the child to maintain her circular motion? B. (H) If the child were not holding on, and , would she slide off or stay put? 13. Tarzan tries to cross a river by swinging from one bank to the other on a vine 10 ...
... A. If the merry-go-round were to rotate at 0.10 Hz, what is the centripetal force acting on the child to maintain her circular motion? B. (H) If the child were not holding on, and , would she slide off or stay put? 13. Tarzan tries to cross a river by swinging from one bank to the other on a vine 10 ...
Standard candles
... white dwarf star in a binary pair with a red dwarf star steals mass from the red dwarf until it is too massive to support itself against gravity any more. Then its core collapses, starting a runaway nuclear reaction and a bright explosion. Because the collapse always happens at the same mass, the lu ...
... white dwarf star in a binary pair with a red dwarf star steals mass from the red dwarf until it is too massive to support itself against gravity any more. Then its core collapses, starting a runaway nuclear reaction and a bright explosion. Because the collapse always happens at the same mass, the lu ...
we can bee the change we wish to bee
... After about 600 years, it is halfway through its saros cycle, then the eclipse “Total” phase begins. This is when the full light of the “story” of the eclipse can best be seen in its Totality. It will then take another 600 years to complete its life cycle, as it spirals to the opposite pole of the E ...
... After about 600 years, it is halfway through its saros cycle, then the eclipse “Total” phase begins. This is when the full light of the “story” of the eclipse can best be seen in its Totality. It will then take another 600 years to complete its life cycle, as it spirals to the opposite pole of the E ...
STAR UNIT FLASH BACKS
... 1. How many quarters are there? (Look at the key) a.) 4 b.) 3 c.) 2 there are always 4 quarters 2. Which quarter had the highest percentage of sales? a.) 1st b.) 2nd c.) 3rd 3. Estimate the percentage of sales that occurred in the 2nd quarter. ...
... 1. How many quarters are there? (Look at the key) a.) 4 b.) 3 c.) 2 there are always 4 quarters 2. Which quarter had the highest percentage of sales? a.) 1st b.) 2nd c.) 3rd 3. Estimate the percentage of sales that occurred in the 2nd quarter. ...
What Do We Really Know About the Universe?
... "We take the side of science in spite of the patent absurdity of some of its constructs, in spite of the failure to fulfill many of its extravagant promises of health and life, in spite of the tolerance of the scientific community for unsubstantiated just-so stories, because we have a prior commitme ...
... "We take the side of science in spite of the patent absurdity of some of its constructs, in spite of the failure to fulfill many of its extravagant promises of health and life, in spite of the tolerance of the scientific community for unsubstantiated just-so stories, because we have a prior commitme ...
Daily Communication Skills
... Example #1: You are on trial for a crime and learn that the jury is “disinterested” in your case. Is this good or bad news? The word “disinterested” means ‘unbiased, and that characteristic of a jury is good if you are ever on trial. Example #2: What do “rotation” and “revolution” mean? Is it correc ...
... Example #1: You are on trial for a crime and learn that the jury is “disinterested” in your case. Is this good or bad news? The word “disinterested” means ‘unbiased, and that characteristic of a jury is good if you are ever on trial. Example #2: What do “rotation” and “revolution” mean? Is it correc ...
ELED 303
... can be found almost everywhere on land, even in regions that are extremely dry. Some of Earth's most impressive topographic features, such as the Grand Canyon, were carved by running water, and streams transport most of the sediment that reaches the world's oceans. Erosion and transportation involve ...
... can be found almost everywhere on land, even in regions that are extremely dry. Some of Earth's most impressive topographic features, such as the Grand Canyon, were carved by running water, and streams transport most of the sediment that reaches the world's oceans. Erosion and transportation involve ...
The Solar System
... •Much smaller than any terrestrial planet. •Comet-like composition (ices, rock) •Comet-like orbit (eccentric, highly inclined to ecliptic plane). •Charon is half Pluto’s diameter Fall, 2005 ...
... •Much smaller than any terrestrial planet. •Comet-like composition (ices, rock) •Comet-like orbit (eccentric, highly inclined to ecliptic plane). •Charon is half Pluto’s diameter Fall, 2005 ...
Extraterrestrial life
Extraterrestrial life is life that does not originate from Earth. It is also called alien life, or, if it is a sentient and/or relatively complex individual, an ""extraterrestrial"" or ""alien"" (or, to avoid confusion with the legal sense of ""alien"", a ""space alien""). These as-yet-hypothetical life forms range from simple bacteria-like organisms to beings with civilizations far more advanced than humanity. Although many scientists expect extraterrestrial life to exist, so far no unambiguous evidence for its existence exists.The science of extraterrestrial life is known as exobiology. The science of astrobiology also considers life on Earth as well, and in the broader astronomical context. Meteorites that have fallen to Earth have sometimes been examined for signs of microscopic extraterrestrial life. Since the mid-20th century, there has been an ongoing search for signs of extraterrestrial intelligence, from radios used to detect possible extraterrestrial signals, to telescopes used to search for potentially habitable extrasolar planets. It has also played a major role in works of science fiction. Over the years, science fiction works, especially Hollywood's involvement, has increased the public's interest in the possibility of extraterrestrial life. Some encourage aggressive methods to try to get in contact with life in outer space, whereas others argue that it might be dangerous to actively call attention to Earth.