Sample pages 1 PDF
... A minute (short for minute of arc or arcminute) is 1/60 of 1°. A second (short for second of arc or arcsecond) is 1/60 of 1 minute of arc. So, 1° contains 3,600 arcseconds. An example of use might be something like, “The average angular size of the Sun or the Moon, as seen from Earth, is 31 arcminut ...
... A minute (short for minute of arc or arcminute) is 1/60 of 1°. A second (short for second of arc or arcsecond) is 1/60 of 1 minute of arc. So, 1° contains 3,600 arcseconds. An example of use might be something like, “The average angular size of the Sun or the Moon, as seen from Earth, is 31 arcminut ...
Sun-Earth-Moon system
... - Incorrect individual belief Venus is a star. / Andromeda is a star. - Category mistake Shape of the earth is like a disk. Day-night occur because the earth moves around the sun. - Flawed mental models (Chi, 2008) ...
... - Incorrect individual belief Venus is a star. / Andromeda is a star. - Category mistake Shape of the earth is like a disk. Day-night occur because the earth moves around the sun. - Flawed mental models (Chi, 2008) ...
Sun, Earth and Moon System
... The Chromosphere is above the photosphere. Solar energy passes through this region on its way out from the center of the Sun. Faculae and flares arise in the Chromosphere. Faculae are bright luminous hydrogen clouds which form above regions where sunspots are about to ...
... The Chromosphere is above the photosphere. Solar energy passes through this region on its way out from the center of the Sun. Faculae and flares arise in the Chromosphere. Faculae are bright luminous hydrogen clouds which form above regions where sunspots are about to ...
Part 1
... At that very moment, unknown to the audience, an asteroid named Hermes halfway between Mars and Jupiter was beginning a long plunge toward our planet. Six months later it would pass 300,000 miles from Earth’s orbit, only a little more than the distance to the Moon…. Hermes approaches Earth’s orbit t ...
... At that very moment, unknown to the audience, an asteroid named Hermes halfway between Mars and Jupiter was beginning a long plunge toward our planet. Six months later it would pass 300,000 miles from Earth’s orbit, only a little more than the distance to the Moon…. Hermes approaches Earth’s orbit t ...
Astronomy Assignment #1
... Sketch the apparent motion of the stars, following the example in class, looking in the four cardinal directions (N, E, S & W) for the following four locations: The North Pole (90 N), Syracuse, NY (43 N), The Equator (0 N), Punta Arenas, Chile (53 S). Include all relevant timescales (time for st ...
... Sketch the apparent motion of the stars, following the example in class, looking in the four cardinal directions (N, E, S & W) for the following four locations: The North Pole (90 N), Syracuse, NY (43 N), The Equator (0 N), Punta Arenas, Chile (53 S). Include all relevant timescales (time for st ...
Motions of the Sky
... lap behind the sun, and this is the duration of the 360O lunar cycle. So the moon falls behind the sun by (360O/29.5 days) = 12.2O/day. Remember that this is an eastward motion on the celestial sphere, in the opposite direction to the daily, westward motion. As the moon changes its position in the ...
... lap behind the sun, and this is the duration of the 360O lunar cycle. So the moon falls behind the sun by (360O/29.5 days) = 12.2O/day. Remember that this is an eastward motion on the celestial sphere, in the opposite direction to the daily, westward motion. As the moon changes its position in the ...
7-12 Script - Geophysical Institute
... Keen observers noticed something else changing in the sky that was more subtle than the moon. They noticed that some of these "stars" did not stay in their place from night to night. Some of them seemed to "wander." This is how the existence of other planets was discovered. The word planet means "wa ...
... Keen observers noticed something else changing in the sky that was more subtle than the moon. They noticed that some of these "stars" did not stay in their place from night to night. Some of them seemed to "wander." This is how the existence of other planets was discovered. The word planet means "wa ...
Lecture07-ASTA01 - University of Toronto
... motions of the visible planets on thousands of tablets more than 4000 years ago. • In 763 BCE, a solar eclipse was also observed and recorded by the Babylonians. • Our division of circle into 360=60*60 units, and 60’ in one degree, as well as 60” in 1’, derives from the sexagesimal counting system ( ...
... motions of the visible planets on thousands of tablets more than 4000 years ago. • In 763 BCE, a solar eclipse was also observed and recorded by the Babylonians. • Our division of circle into 360=60*60 units, and 60’ in one degree, as well as 60” in 1’, derives from the sexagesimal counting system ( ...
A Walk through the Universe
... [Get your volunteers to stand there for a while so the audience has a chance to take it in. This is a photo-opportunity: teachers often want to take pictures.] OK, that was great, thank you. Can I have my planets back please? Slide 9: The Solar System So now we see that the Sun is by far the biggest ...
... [Get your volunteers to stand there for a while so the audience has a chance to take it in. This is a photo-opportunity: teachers often want to take pictures.] OK, that was great, thank you. Can I have my planets back please? Slide 9: The Solar System So now we see that the Sun is by far the biggest ...
1Space (Leah)
... moon. It is a small, rocky world and, like our Moon it’s covered in craters. Space rocks crashing into Mercury long ago made these craters. ...
... moon. It is a small, rocky world and, like our Moon it’s covered in craters. Space rocks crashing into Mercury long ago made these craters. ...
The Resounding Universe
... sound itself. However, the sound of the planets is present since our birth and this explains why we cannot recognise it, not having the notion of its counterpart. Later, Aristotle retracts this enthralling theory affirming that if such a sound would exist, it would be so loud as to destroy life on E ...
... sound itself. However, the sound of the planets is present since our birth and this explains why we cannot recognise it, not having the notion of its counterpart. Later, Aristotle retracts this enthralling theory affirming that if such a sound would exist, it would be so loud as to destroy life on E ...
Clear Skies - Cowichan Valley Starfinders Society
... light years, meaning the explosion took place 7.5 billion years ago, a time when the universe was less than half its current age and Earth had yet to form. This is more than halfway across the visible universe. "No other known object or type of explosion could be seen by the naked eye at such an imm ...
... light years, meaning the explosion took place 7.5 billion years ago, a time when the universe was less than half its current age and Earth had yet to form. This is more than halfway across the visible universe. "No other known object or type of explosion could be seen by the naked eye at such an imm ...
The Final Flight of Atlantis - Westchester Amateur Astronomers
... shoot this image of the Sun. The scope was mounted on a Tech200/Giro-2 "track and train" drive. He captured a one-minute avi file using Deepsky Imaging on a netbook with an inexpensive USB-video adaptor. Larry ran the avi through Registax 5 to stack the images (1275 frames) and then Photoshop to enh ...
... shoot this image of the Sun. The scope was mounted on a Tech200/Giro-2 "track and train" drive. He captured a one-minute avi file using Deepsky Imaging on a netbook with an inexpensive USB-video adaptor. Larry ran the avi through Registax 5 to stack the images (1275 frames) and then Photoshop to enh ...
May - Hawaiian Astronomical Society
... of the Moon’s craters resulted from impacts, and the rest of the solar system had been heavily bombarded as well, no one had ever witnessed a significant impact. That changed when a comet, appropriately co-discovered by Gene Shoemaker, was broken apart by a close pass by Jupiter. Many pieces of that ...
... of the Moon’s craters resulted from impacts, and the rest of the solar system had been heavily bombarded as well, no one had ever witnessed a significant impact. That changed when a comet, appropriately co-discovered by Gene Shoemaker, was broken apart by a close pass by Jupiter. Many pieces of that ...
Syllabus
... Recommended Prerequisites: Math 110, one year of high school algebra or equivalent is recommended. It is recommended that the student be eligible for English 122. The material from Math 110 will be used during the course of the class. Astronomy 110 is a 3 unit letter grade only course. ...
... Recommended Prerequisites: Math 110, one year of high school algebra or equivalent is recommended. It is recommended that the student be eligible for English 122. The material from Math 110 will be used during the course of the class. Astronomy 110 is a 3 unit letter grade only course. ...
A Secret Number in Astronomy
... centre of the universe three hundred years later. Ptolemaeus used Hipparchos’ system to explain the motions of the Sun, the Moon, and the five planets known at that time. It was accurate enough to predict the position of the planets for naked-eye observations. Ptolemaeus authored three major oeuvres ...
... centre of the universe three hundred years later. Ptolemaeus used Hipparchos’ system to explain the motions of the Sun, the Moon, and the five planets known at that time. It was accurate enough to predict the position of the planets for naked-eye observations. Ptolemaeus authored three major oeuvres ...
3. COMMENTS ON KEPLER`S NEW ASTRONOMY
... perceived those stars as mirrors, rotating daily around a Polar Star, all of which reflected back to the center of the sphere where he stood, and projected their shadows, from their diverse positions in space, onto some location on the Celestial Sphere behind them. See ...
... perceived those stars as mirrors, rotating daily around a Polar Star, all of which reflected back to the center of the sphere where he stood, and projected their shadows, from their diverse positions in space, onto some location on the Celestial Sphere behind them. See ...
PDF, 179Kb - Maths Careers
... the Sun’s radius. Have a look at the scaled picture to see how they compare. At this scale, the Earth is too small to see because its radius is 109 times smaller than the sun’s radius. 1.3 x 106 Earths would occupy the same volume as the Sun! In about 5 x 109 years the Sun will become a red giant st ...
... the Sun’s radius. Have a look at the scaled picture to see how they compare. At this scale, the Earth is too small to see because its radius is 109 times smaller than the sun’s radius. 1.3 x 106 Earths would occupy the same volume as the Sun! In about 5 x 109 years the Sun will become a red giant st ...
Star Formation
... A protostar must have 0.08 the mass of the Sun (which is 80 times the mass of Jupiter) in order to become dense and hot enough that fusion can begin If the mass of the “failed star” is about 12 Jupiter masses or more, it is luminous when first formed, and is called a ...
... A protostar must have 0.08 the mass of the Sun (which is 80 times the mass of Jupiter) in order to become dense and hot enough that fusion can begin If the mass of the “failed star” is about 12 Jupiter masses or more, it is luminous when first formed, and is called a ...
December 2010 Clear Skies Newsletter PDF
... these seasons because the planet is tilted on its axis, so one hemisphere receives more energy from the Sun and experiences summer while the other receives less energy and is shrouded in winter. Saturn’s equinox, when the Sun was directly over the equator, occurred in August 2009. In the study, Satu ...
... these seasons because the planet is tilted on its axis, so one hemisphere receives more energy from the Sun and experiences summer while the other receives less energy and is shrouded in winter. Saturn’s equinox, when the Sun was directly over the equator, occurred in August 2009. In the study, Satu ...
The Copernican Revolution
... ''On the 11th day of November in the evening after sunset, I was contemplating the stars in a clear sky. I noticed that a new and unusual star, surpassing the other stars in brilliancy, was shining almost directly above my head; and since I had, from boyhood, known all the stars of the heavens perfe ...
... ''On the 11th day of November in the evening after sunset, I was contemplating the stars in a clear sky. I noticed that a new and unusual star, surpassing the other stars in brilliancy, was shining almost directly above my head; and since I had, from boyhood, known all the stars of the heavens perfe ...
Planetary Cycles
... over 29 days to complete. With reference to the Earth or a fixed star, the Moon finishes the cycle in about 28 days. This is its sidereal period. An interesting cycle to study is the Lunar or Metonic Cycle, consisting of 19 years, or 235 lunations. The discoverer of this cycle was the Greek astronom ...
... over 29 days to complete. With reference to the Earth or a fixed star, the Moon finishes the cycle in about 28 days. This is its sidereal period. An interesting cycle to study is the Lunar or Metonic Cycle, consisting of 19 years, or 235 lunations. The discoverer of this cycle was the Greek astronom ...
The Outer Planets: Mercury, Venus, Earth and Mars How are the
... 2. What are the main characteristics used to classify stars? For each characteristic, explain or describe the possible options in each category. For example: Size of stars – what are the difference sizes, how are stars measured, what star examples fall into each category? ...
... 2. What are the main characteristics used to classify stars? For each characteristic, explain or describe the possible options in each category. For example: Size of stars – what are the difference sizes, how are stars measured, what star examples fall into each category? ...
the earth in space - North Salem Schools Teachers Module
... a. model was the product of Ptolemy - celestial objects revolved westward around the Earth b. outer planets moved on an epicycle while the epicycle followed a deferent c. it does explain what you see in the nighttime sky - it could be correct d. it does NOT account for terrestrial motions and phenom ...
... a. model was the product of Ptolemy - celestial objects revolved westward around the Earth b. outer planets moved on an epicycle while the epicycle followed a deferent c. it does explain what you see in the nighttime sky - it could be correct d. it does NOT account for terrestrial motions and phenom ...