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Nov 2016 - Astronomical Society of Northern New England
Nov 2016 - Astronomical Society of Northern New England

... pulling farther ahead of it in our respective orbits around the sun. Its last opposition was on May 22 of this year and it will not be that close to earth again until July 27 of 2018. The red planet will set at virtually the same time each night for the rest of the year. That is because it is travel ...
Lecture #4 - History of Astronomy - Ptolemy to Kepler
Lecture #4 - History of Astronomy - Ptolemy to Kepler

... planets, that weakens with increasing distance – Invested Sun with physical properties necessary for the uniform description of planetary motions ...
PHYS 390 Lectures 1/2 - The Big Picture 1/2
PHYS 390 Lectures 1/2 - The Big Picture 1/2

... Moon were done by Aristarchus. His work proved not to be overly accurate, but established that these quantities were measurable. Aristarchus also proposed a heliocentric theory some 1800 years before Copernicus, with the corresponding notion that the Earth rotated around its axis. The angular size o ...
sc_examII_fall_2002 - University of Maryland
sc_examII_fall_2002 - University of Maryland

... A. a few hundred feet away. B. a few miles away. C. a few hundred miles away. ...
Week 7 Notes Comets, Meteors, and Asteroids
Week 7 Notes Comets, Meteors, and Asteroids

... a. Gas and Dust from a comet’s __HEAD__ streams out to form a __TAIL__ b. Comet means __LONG-HAIRED STAR__ in Greek c. Most comets have __2__ tails: __GAS TAIL__ and __DUST TAIL__ d. The comet’s __TAILS__ point __AWAY__ from the __SUN__ e. A __COMET’S__ tail can be more than __100__ million kilomete ...
ITB - In the Beginning
ITB - In the Beginning

... from the city. It wasn't radiation from our galaxy or extraterrestrial radio sources. It wasn't even the pigeons living in the big, horn-shaped antenna. They kicked them out and swept out all their droppings. The source remained the same through four seasons, so it couldn't have come from the solar ...
Space Quiz for CPS
Space Quiz for CPS

... that the sun rotates? A. Solar winds causing magnetic storms. B. The sunspots that move across the sun, disappear, the reappear on the other side of sun C. There is no evidence that the sun rotates. ...
The Hunt for Epsilon Eridani c to Study its Earthly
The Hunt for Epsilon Eridani c to Study its Earthly

... It is crucial to determine distinctly whether there is a second planet orbiting Epsilon Eridani. Not only will its features likely resemble that of earth’s, but it may also aid in the explanation of the Kuiper Belt mass distribution in our own solar system. By investigating these near IR images I am ...
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... a consequence of stellar evolution, the present cosmic abundances of chemical elements came about. Planets do not form independently; rather, their generation is an inevitable byproduct of star formation. This is because the gravitational collapse of large amounts of gas and dust from the interstell ...
Star Planet - Stony Brook Astronomy
Star Planet - Stony Brook Astronomy

... A moderately large object that orbits a star. Planets may be rocky, icy, or gaseous in ...
ASTR 105 Intro Astronomy: The Solar System
ASTR 105 Intro Astronomy: The Solar System

... Astronomers see a bright supernova explode in the Andromeda galaxy (the nearest big galaxy in the local group; located 2.6 million ly away). The remnants from such explosions disperse in about 10,000 years. A.  The supernova remnant still exists now, and we will watch it disperse over the next 10,00 ...
Astronomy 10B Study Guide – by Chapter
Astronomy 10B Study Guide – by Chapter

... Prominences – loops of magnetic fields sticking up from the Sun We can see them because the stick off to the sides We can see them because the hot plasma moves The Solar Cycle There is an 11-year cycle for magnetic activity on the Sun All magnetic phenomena follow this cycle We have observed this fo ...
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Physics 1010: The Physics of Everyday Life

... • Average for exam was ~70% ...
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... the local group). The remnants from such explosions disperse in about 10,000 years. A.  The supernova remnant still exists now, and we will watch it disperse over the next 10,000 Earth years. B.  In reality, the supernova remnant has already dispersed, but we will watch it disperse over the next 10, ...
Brownies + Earth Day
Brownies + Earth Day

... Did you know that the sun is not a planet but a star? Just like the stars you see at night. Though it is more than 100 times larger than earth it is just average size for a star. The Moon The moon is another body in our solar system. It is covered with deep pockets called craters. One side of the mo ...
Slide 1
Slide 1

... •Places on the earth experience seasons, providing evidence that the earth is revolving around the sun. •The sun is a star that produces light that travels in straight lines away from the sun in all directions. •Light from the sun illuminates objects that reflect light, including Earth and its moon. ...
math behind the calculator
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... The amount of energy given off by a star is directly related to its mass. For this program we are assuming that the star is a main sequence star, where its energy output is relatively easy to predict. A main sequence star is a star that is in the main part of its life cycle—it is not just becoming a ...
Motion in the Sky & Getting to know the Sky
Motion in the Sky & Getting to know the Sky

... therefore it appears very small in the sky. Venus is in the “new” phase when it is at its closest distance to the earth, so the “narrow crescent” Venus looks very large (and very bright)! ...
Lec37
Lec37

... from his carefully collected data the three laws of orbital motion we know today as Kepler’s laws. ...
High School Science Essential Curriculum - Astronomy
High School Science Essential Curriculum - Astronomy

... Investigate research methods used to analyze a typical star, such as solar neutrino detectors, helioseismology, spectroscopy, and Doppler shift detections of extrasolar planets. ...
Practice Midterm 1
Practice Midterm 1

... A) The order of events can be different for observers in different reference frames. B) From your point of view, time runs slower in the reference frame of anyone moving relative to you. C) If one observer measures two events to be simultaneous, all observers must agree on their simultaneity. D) Tim ...
Standard Set 2 - Atascadero High School
Standard Set 2 - Atascadero High School

... during a brief period near the end of their lifetime. A different type of fusion is necessary to form elements heavier than iron. This type can be carried out only by adding neutrons to a preexisting heavy element that forms a “seed.” Neutrons are available only during a limited portion of a star’s ...
Name - MIT
Name - MIT

... A) More distant planets orbit the Sun at slower speeds. B) The orbit of each planet about the Sun is an ellipse with the Sun at one focus. C) The force of attraction between any two objects decreases with the square of the distance between their centers. D) As a planet moves around its orbit, it swe ...
The Official Magazine of the University of St Andrews Astronomical Society
The Official Magazine of the University of St Andrews Astronomical Society

... Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come ...
Summation Packet KEY
Summation Packet KEY

... 20. The star Gamma Per is about 225 light years (LY = distance light travels in one year) from earth. Imagine there is intelligent alien life living on a planet that circles this star. Using what you know about the speed of light and American history, describe what the aliens would be seeing right ...
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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.
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