sc_examII_fall_2002 - University of Maryland
... Choose the BEST answer to each of the following questions using what you have learned in ASTR 101. Indicate your choice on the scantron. (2 pts. each) 1. In the Cygnus X-1 system, the X-rays are explain by astronomers as A. strong radiation emitted by a supergiant star. B. a distant galaxy that has ...
... Choose the BEST answer to each of the following questions using what you have learned in ASTR 101. Indicate your choice on the scantron. (2 pts. each) 1. In the Cygnus X-1 system, the X-rays are explain by astronomers as A. strong radiation emitted by a supergiant star. B. a distant galaxy that has ...
Naked-eye astronomy
... • However it is still a model that remains a useful tool of positional astronomy • Landmarks on the celestial sphere are projections of those on the Earth ...
... • However it is still a model that remains a useful tool of positional astronomy • Landmarks on the celestial sphere are projections of those on the Earth ...
Chapter 1 - Scholastic Shop
... change, natural or man-made. But is there anything we can do to protect our planet from this climate change? ...
... change, natural or man-made. But is there anything we can do to protect our planet from this climate change? ...
Wadhurst Astronomical Society Newsletter May 2017
... Venus is larger making it easier to see the phases and in bigger telescopes it might be possible to make out cloud features. A good observing object is Jupiter with its size and cloud belts. The Galilean moons are interesting to watch as they transit with shadows on the planet’s surface that can be ...
... Venus is larger making it easier to see the phases and in bigger telescopes it might be possible to make out cloud features. A good observing object is Jupiter with its size and cloud belts. The Galilean moons are interesting to watch as they transit with shadows on the planet’s surface that can be ...
Saturn
... 3rd largest planet, since Neptune has a smaller radius but larger mass (because Neptune's density is higher). The rotation axis is unusual in that it lies only 8 degrees out of the plane of the orbit. Thus, at times the rings and the orbits of the moons appear like a "bulls-eye" when viewed from the ...
... 3rd largest planet, since Neptune has a smaller radius but larger mass (because Neptune's density is higher). The rotation axis is unusual in that it lies only 8 degrees out of the plane of the orbit. Thus, at times the rings and the orbits of the moons appear like a "bulls-eye" when viewed from the ...
An Introduction to Astronomy and Cosmology
... changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning System (GPS) Network and there is pressure to do aw ...
... changed, 22 leap seconds have had to be added, about one every 18 months, but there were none between 1998 and 2005 showing the slowdown is not particularly regular. Leap seconds are somewhat of a nuisance for systems such as the Global Positioning System (GPS) Network and there is pressure to do aw ...
AST 207 Test 1 28 September 2011
... Star X is on a bigger orbit. The radius of the orbit is the distance from the star to the center of mass of the star-companion system. Since , the mass of the companion is 1000 bigger for star X than for 51 Peg. Star X is orbiting another star, not a planet. 2. Use the drawing on the front page, whi ...
... Star X is on a bigger orbit. The radius of the orbit is the distance from the star to the center of mass of the star-companion system. Since , the mass of the companion is 1000 bigger for star X than for 51 Peg. Star X is orbiting another star, not a planet. 2. Use the drawing on the front page, whi ...
We live on the earth. It`s one of the planets in our solar
... distance from the sun to be warm enough and cool enough for life and it has enough gravity to hold on to its atmosphere. The Earth has one moon. Moons are objects that orbit a planet the way a planet orbits the sun. The next planet in the solar system is Mars. Mars is about half the size of the Eart ...
... distance from the sun to be warm enough and cool enough for life and it has enough gravity to hold on to its atmosphere. The Earth has one moon. Moons are objects that orbit a planet the way a planet orbits the sun. The next planet in the solar system is Mars. Mars is about half the size of the Eart ...
1” “Sky-Notes” of the Open University Astronomy Club. October 2005
... star charts or those such as available from the Variable Star Section of the BAA. The Section operates a “mentor” system where novices to variable star observation are given guidance and support. ...
... star charts or those such as available from the Variable Star Section of the BAA. The Section operates a “mentor” system where novices to variable star observation are given guidance and support. ...
The Moon`s Orbit
... phases change because the Moon orbits about the Earth, it is commonly believed that the period of the cycle of the lunar phases, which equals 29.5 days, is also the exact period for the Moon’s orbit. However, this is not true. This is actually the “synodic” period, in that it is measured by an obser ...
... phases change because the Moon orbits about the Earth, it is commonly believed that the period of the cycle of the lunar phases, which equals 29.5 days, is also the exact period for the Moon’s orbit. However, this is not true. This is actually the “synodic” period, in that it is measured by an obser ...
August Skies
... days. Although there are no Messier objects in Cepheus, the area is quite rich with stars as part of it lies in the Milky Way just above Cygnus. The Constellation Capricornus the Sea Goat – The plane of our solar system projected against the stars contains 12 constellations, the ecliptic or the zodi ...
... days. Although there are no Messier objects in Cepheus, the area is quite rich with stars as part of it lies in the Milky Way just above Cygnus. The Constellation Capricornus the Sea Goat – The plane of our solar system projected against the stars contains 12 constellations, the ecliptic or the zodi ...
The Earth
... axis once every day. This accounts for the fact that the sun rises in the east and sets in the west. The earth’s axis is tilted with respect to the plane of its orbit at an angle of about 23.4 degrees. If we position ourselves high above the north pole, we would see that the earth orbits the sun in ...
... axis once every day. This accounts for the fact that the sun rises in the east and sets in the west. The earth’s axis is tilted with respect to the plane of its orbit at an angle of about 23.4 degrees. If we position ourselves high above the north pole, we would see that the earth orbits the sun in ...
What are 2 motions of the Earth?
... earth revolves Observing the Sky: Motion of the Sun and Stars - The Night Sky around the 2) The Sun appears to be larger sun? during the winter months and smaller as summer approaches. • Perihelion – earth closest to the sun •Aphelion – earth furthest away from the sun ...
... earth revolves Observing the Sky: Motion of the Sun and Stars - The Night Sky around the 2) The Sun appears to be larger sun? during the winter months and smaller as summer approaches. • Perihelion – earth closest to the sun •Aphelion – earth furthest away from the sun ...
Chapter 02
... pole follows a circular pattern on the sky, once every 26,000 years. We are lucky to live at a time when a fairly bright star (Polaris, magnitude 2) is near the north celestial pole. It will be closest to Polaris ~ A.D. 2100. ...
... pole follows a circular pattern on the sky, once every 26,000 years. We are lucky to live at a time when a fairly bright star (Polaris, magnitude 2) is near the north celestial pole. It will be closest to Polaris ~ A.D. 2100. ...
Dec 2013 - Bays Mountain Park
... more than 400 years ago. The Moon is full on December 17th. Mercury is in the morning sky, below and to the left of Saturn. It brightens to -0.8 magnitude early in the month but soon races towards the Sun and is gone from view for a while. Venus shines very brightly at almost -5 magnitude this month ...
... more than 400 years ago. The Moon is full on December 17th. Mercury is in the morning sky, below and to the left of Saturn. It brightens to -0.8 magnitude early in the month but soon races towards the Sun and is gone from view for a while. Venus shines very brightly at almost -5 magnitude this month ...
MSWord version
... north of due east and some stars, closer to the SCP than the NCP, rise south of due east. The closer to a Celestial Pole they happen to be, the farther north or south they’ll rise (or, for that matter, set). Always. A star always rises and sets at the same places on a particular horizon. Only a star ...
... north of due east and some stars, closer to the SCP than the NCP, rise south of due east. The closer to a Celestial Pole they happen to be, the farther north or south they’ll rise (or, for that matter, set). Always. A star always rises and sets at the same places on a particular horizon. Only a star ...
1 Lunar Standstills and Chimney Rock Thomas Hockey To
... north of due east and some stars, closer to the SCP than the NCP, rise south of due east. The closer to a Celestial Pole they happen to be, the farther north or south they’ll rise (or, for that matter, set). Always. A star always rises and sets at the same places on a particular horizon. Only a star ...
... north of due east and some stars, closer to the SCP than the NCP, rise south of due east. The closer to a Celestial Pole they happen to be, the farther north or south they’ll rise (or, for that matter, set). Always. A star always rises and sets at the same places on a particular horizon. Only a star ...
Introduction to Sun Motion
... which a steady light is needed; for that quarter of the sky grows neither light nor dark with the course of the sun, but remains steady and unshifting all day long. ...
... which a steady light is needed; for that quarter of the sky grows neither light nor dark with the course of the sun, but remains steady and unshifting all day long. ...
Evening Planets in School Year 2016-17
... is still of mag. –0.5 when it reaches greatest elongation, 21° from Sun on Dec. 10, and almost as bright when at peak altitude a few days later. Mercury dims to mag. 0.0 by Dec. 17 and fades very sharply thereafter. Mercury begins its best evening appearance of the 2016-17 school year by March 18, 2 ...
... is still of mag. –0.5 when it reaches greatest elongation, 21° from Sun on Dec. 10, and almost as bright when at peak altitude a few days later. Mercury dims to mag. 0.0 by Dec. 17 and fades very sharply thereafter. Mercury begins its best evening appearance of the 2016-17 school year by March 18, 2 ...
Wizard Test Maker
... point A and at point D. 3) The orbital velocity of the Earth at point A equals its orbital velocity at point C. 4) The gravitational force between the Earth and the Sun at point B is the same as the gravitational force at point D. ...
... point A and at point D. 3) The orbital velocity of the Earth at point A equals its orbital velocity at point C. 4) The gravitational force between the Earth and the Sun at point B is the same as the gravitational force at point D. ...
The Seasons Interactive - Home
... 1. The small moon prop that resembles a lollipop is nearly true to scale of size of the earth, but not to the distance scale. It should be out at 30 Earth diameters away. This is a surprisingly large distance of six paces. 2. Half of the moon is always illuminated, even if we don’t see that half. 3. ...
... 1. The small moon prop that resembles a lollipop is nearly true to scale of size of the earth, but not to the distance scale. It should be out at 30 Earth diameters away. This is a surprisingly large distance of six paces. 2. Half of the moon is always illuminated, even if we don’t see that half. 3. ...
Astronomy Powerpoint
... nuclei into the nucleus of a helium atom, releasing a tremendous amount of energy. • During nuclear fusion, energy is released because some matter is actually converted to energy. • It is thought that a star the size of the sun can exist in its present stable state for 10 billion years. As the sun i ...
... nuclei into the nucleus of a helium atom, releasing a tremendous amount of energy. • During nuclear fusion, energy is released because some matter is actually converted to energy. • It is thought that a star the size of the sun can exist in its present stable state for 10 billion years. As the sun i ...
03jan13.ppt - Institute for Astronomy
... Seasonal Change in Sun’s Altitude • The “Figure 8” shows Sun at same time each day over a year. ...
... Seasonal Change in Sun’s Altitude • The “Figure 8” shows Sun at same time each day over a year. ...
Exam #1 Review
... 5. You should know the difference between mass, density and specific gravity! 6. You should be able to take data and plot it on a graph. 7. You should also be able to conduct a scientific experiment using accepted methods of ...
... 5. You should know the difference between mass, density and specific gravity! 6. You should be able to take data and plot it on a graph. 7. You should also be able to conduct a scientific experiment using accepted methods of ...
Extraterrestrial skies
In astronomy, the term extraterrestrial sky refers to a view of outer space from the surface of a world other than Earth.The sky of the Moon has been directly observed or photographed by astronauts, while those of Titan, Mars, and Venus have been observed indirectly by space probes designed to land on the surface and transmit images back to Earth.Characteristics of extraterrestrial skies appear to vary substantially due to a number of factors. An extraterrestrial atmosphere, if present, has a large bearing on visible characteristics. The atmosphere's density and chemical composition can contribute to differences in colour, opacity (including haze) and the presence of clouds. Astronomical objects may also be visible and can include natural satellites, rings, star systems and nebulas and other planetary system bodies.For skies that have not been directly or indirectly observed, their appearance can be simulated based on known parameters such as the position of astronomical objects relative to the surface and atmospheric composition.