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FRIENDS OF THE PLANETARIUM NEWSLETTER April2002
FRIENDS OF THE PLANETARIUM NEWSLETTER April2002

... hottest. Stars are the same; with the hot 30,000 degree stars being a bluish white in colour and the cold stars like Betelgeuse being red. Our yellow sun lies in between with a surface temperature of around 6000 degrees. Despite its size of at least 160 million suns, its mass is only equivalent to s ...
What, and Why, is the International Astronomical Union?
What, and Why, is the International Astronomical Union?

... * Just how long a distance is not entirely clear, for while the answer they found is generally regarded as having been quite accurate, it was given in Roman stadia, and nobody knows quite how long a stadium was in those days. ...
Word - UW-Madison Astronomy
Word - UW-Madison Astronomy

... b) Now look at Figure ii) on the back page. If the Earth and you were to move from A to B in 6 months, and all the while you were looking at Star C, briefly describe what you would see. How would Star C appear to move relative to the more distant stars? c) In Figure iii), the angle is known as the ...
How do stars form?
How do stars form?

... Oldest Earth rock: 3.98 Ga Acasta Gneiss Oldest Earth minerals: 4.4 Ga Chemistry of the Sun and rate of fusion Age of oldest Moon Rocks: 3.3 - 4.2 Ga Age of Meteorites: 4.5 Ga ...
The Solar System
The Solar System

... • Gas Giants: (Jupiter & Saturn) – Thick H/He atmosphere, liquid hydrogen mantle, ice core ...
7.1 Planetary Motion and Gravitation In spite of many common
7.1 Planetary Motion and Gravitation In spite of many common

... able to utilize that data to develop laws that describe the motions of the planets. Galileo Galilei described the motion of falling objects near the earth surface. Isaac Newton developed those descriptions into a mathematical law and linked the force of gravity to the motion of the planets as well. ...
3observing3s
3observing3s

... Astrology is a pseudoscience, it uses some of the terminology of science, but its basic tenets are not subject to proof ...
Barycenter Our solar system consists of the Sun and the
Barycenter Our solar system consists of the Sun and the

... Orbit means to move in a curved path around another something. In astronomy, celestial bodies are generally described as moving or orbiting some other celestial body. For example, the Moon is said to orbit or revolve around the Earth. The Earth doesn’t stays in position as the Moon circles it. Just ...
Sample final
Sample final

... 17. An object orbits the Sun with a period of 350 years. What is its semi-major axis? How would you classify (composition or type) this object? In other words, what is it? Essay section part one Choose two of the following discoveries, and determine if they are surprising (not consistent with curren ...
Space Unit Exam /31
Space Unit Exam /31

... Indicate in the space provided whether the answer is true or false; if false, you must correct the answer to make it true. a. ____ In the beginning, before the ‘big bang’, the universe was very small, dense and cold. _______________________________________________________________ ___________________ ...
Chapter 3 The Science of Astronomy Agenda Stony Brook Lectures
Chapter 3 The Science of Astronomy Agenda Stony Brook Lectures

... a = avg. distance from Sun in AU ⇒ means that a planet travels faster when it is nearer to the Sun and slower when it is farther from the Sun. ...
View as Printable PDF
View as Printable PDF

... probes are unmanned satellites or remote-controlled ‘landers’ that put equipment on or close to planets where no human has gone before. Probes have done remote sensing on Mercury and Jupiter, taken soil samples on Mars, landed on Venus, and studied Saturn’s rings up close. The most recent probes to ...
Astronomy Merit program @ Huntley Meadows Park
Astronomy Merit program @ Huntley Meadows Park

... C. Make two sketches of the Big Dipper. In one sketch, show the Big Dipper's orientation in the early evening sky. In another sketch, show its position several hours later. In both sketches, show the North Star and the horizon. Record the date and time each sketch was made. D. Explain what we see wh ...
N3.6 Software handout
N3.6 Software handout

... develop new tasks in it. •well tested system. Although the system must be subject to its own regression tests, only actual users will be able to find subtle issues in application procedures. •stability. Users have to be sure that their 'investment' in learning and using an environment also pays back ...
Final Exam from 2005
Final Exam from 2005

... b. the same time c. later 15. True or False: The moon orbits the earth in the exact same plane as the earth orbits the sun. a. True b. False 16. Which of the following is NOT a result of a collision in our solar system? a. Jupiter’s red spot. b. The formation of our Moon. c. The tipped rotation axis ...
Starry Starry Night Vocabulary
Starry Starry Night Vocabulary

... Artist: A person who creates art such as paintings, drawings or sculpture. Astronomy: The study of objects outside the earth’s atmosphere, including planets and stars. Author: A person who writes a story or a book. Aztecs: An ancient civilization in Mexico. Aztecs studies the stars, noticed that the ...
From the Everett and Seattle Astronomical
From the Everett and Seattle Astronomical

... in fact, that their orbital periods are often only a few weeks or even a few days. In our solar system, Mercury orbits closest to the Sun, but it still takes 88 days to go around once. Scientists have coined the term “hot Jupiters” to describe these gas giants orbiting so close to their suns. But th ...
Earth`s Motions
Earth`s Motions

... in motion is how planets were discovered. The retrograde motion of planets is more easily explained by the heliocentric model rather than the geocentric model. ...
Attachment
Attachment

... neighbouring region of planetestimals. The term planet is ancient, with ties to history, science, mythology, and religion. ...
Chapter 21
Chapter 21

... The sun is a medium-sized star. Stars that are much larger than the sun are called ______________ or __________________.  Composition – The chemical composition of most stars is about 73 % ______________ and 25 % ____________________. How can astronomers infer which elements are found in stars? ___ ...
Chapter 2 Knowing the Heavens
Chapter 2 Knowing the Heavens

... 2. Are the stars that make up a constellation actually close to one other? 3. Are the same stars visible every night of the year? What is so special about the North Star? 4. Are the same stars visible from any location on Earth? 5. What causes the seasons? Why are they opposite in the northern and s ...
The Solar System
The Solar System

... The Sun is a yellow star around which all the planets in our solar system orbit. Our Sun is not unique. It is one of billions of stars with orbiting planets throughout the universe. It is composed mostly of hydrogen gas and helium. The Sun provides heat and light for Earth and the other planets in o ...
PISGAH Dr. Bob Hayward ASTRONOMICAL Astronomer/Educator
PISGAH Dr. Bob Hayward ASTRONOMICAL Astronomer/Educator

... towards the west and you will come to a bright star, Aldebaran, the eye of Taurus the bull. A cluster of stars called the Hyades forms the face of the bull and can be seen in the form of a letter “V” with Aldebaran at the top of one side of the “V.” Technically, Aldebaran is not a member of the Hyad ...
the_young_astronomers_newsletter-NL1304-F
the_young_astronomers_newsletter-NL1304-F

... old as 16 billion years but astronomers have now arrived at an age of 14.5 billion years (older than the universe's calculated age of about 13.8 billion years). ...
Mountain Skies - Pisgah Astronomical Research Institute
Mountain Skies - Pisgah Astronomical Research Institute

... ironically,  was  a  list  of  objects  not  to  look  at  if  you  were  looking  for  comets.    Generally,  when  comets   are   first   discovered   optically,   they   appear   as   faint,   fuzzy   objects   that   move   against   the   pattern   of   background   stars.     The   objects   ...
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History of astronomy



Astronomy is the oldest of the natural sciences, dating back to antiquity, with its origins in the religious, mythological, cosmological, calendrical, and astrological beliefs and practices of pre-history: vestiges of these are still found in astrology, a discipline long interwoven with public and governmental astronomy, and not completely disentangled from it until a few centuries ago in the Western World (see astrology and astronomy). In some cultures, astronomical data was used for astrological prognostication.Ancient astronomers were able to differentiate between stars and planets, as stars remain relatively fixed over the centuries while planets will move an appreciable amount during a comparatively short time.
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