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ISS Sighting Opportunities
ISS Sighting Opportunities

... So, the difference in brightness that you see is the two stars' actual difference in true luminosity. Vega looks 1 magnitude brighter than Fomalhaut (in other words, 2.5 times brighter), and so it really is. Wednesday, Oct. 26 · The Ghost of Summer Suns. Halloween is approaching, and this means that ...
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Comprehensive Wide-Band Magnitudes and Albedos for the Planets

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... Ganymede is the largest moon in the solar system – larger than Pluto and Mercury. It has a history similar to Earth’s Moon, but with water ice instead of lunar rock. ...
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... One full day, or 24 hours, later the rotating Earth would have brought the observer to the same position. The moon traveling in its orbit would have moved positions. The observer would now have to wait until the Earth's movement carried him to a different position before he or she could see the moon ...
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NAME ..........................................................................CLASS.............ADM

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Signatures of Planets in Protoplanetary and Debris
Signatures of Planets in Protoplanetary and Debris

... We perform further simulations with the goal of answering the question whether the planet itself and/or the circumplanetary environment heated by the planet, through its contraction and/or via accretion onto it, could be detected. The detection of a gap would already represent a strong indication of ...
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CHP 13

... 1. The lowest-mass stars cannot become giants because a. they do not contain helium. b. they rotate too slowly. c. they cannot heat their centers hot enough. d. they contain strong magnetic fields. e. they never use up their hydrogen. 2. A planetary nebula is a. the expelled outer envelope of a medi ...
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Penn State Astronomy 11 Laboratory

... A. Along with this laboratory packet, you need to purchase a planisphere from the bookstore which will help you to locate stars and constellations this semester. You will also need a calculator capable of scientific notation, and a small flashlight with some type of red filter on it (i.e., covered w ...
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Unit 3: Laws of Motion and Energy
Unit 3: Laws of Motion and Energy

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Tellurium N

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Laboratory A
Laboratory A

... 10. On the scale drawing of the NPOI site, 1 in is 140 ft. What is this in centimeters to meters? 2.54 cm to 42.672 m, or 1 cm to 16.8 m 11. On the scale drawing of the NPOI site, 1 in is 140 ft. What are the dimensions of the Beam Combing Building on the drawing in inches? length = 1,125/3,556 in, ...
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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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