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... It is important to use appropriate units when measuring physical quantities, and to report those units when you report your results. Distances between objects in space are so great that specifying distance in miles is like giving the distance from here to St. Louis in millimeters. Scientists use lig ...
Astronomy Webquest _2 STARS
Astronomy Webquest _2 STARS

... several billion years, because they burn their fuel much more slowly. Eventually, however, the ________________ fuel that powers the nuclear reactions within stars will begin to run out, and they will enter the final phases of their lifetime. Over time, they will expand, cool and change color to bec ...
Discovering The Universe for Yourself
Discovering The Universe for Yourself

... How often do Eclipses Occur? • There are two periods each year when the nodes of the Moon’s orbit are nearly aligned with the Sun. • These are called Eclipse Seasons. • The combined effect of the changing dates of eclipse seasons and the 29.5 day lunar cycle, makes eclipses recur about every 18 yea ...
Homework #3 MHC Astronomy 100/101/110 Prof. Stage For ALL the
Homework #3 MHC Astronomy 100/101/110 Prof. Stage For ALL the

... explain your reasoning. Answers without work will lose points. This assignment is worth  40 points total, with an extra‐credit question worth up to an additional 4 points.   You do not need to type this entire assignment. Some of the problems are more easily  written out by hand. Just be neat!  1. U ...
Earth in Space and Beyond - Westmoreland Central School
Earth in Space and Beyond - Westmoreland Central School

... toward different directions throughout the year. – If you follow a specific constellation on successive evenings, it will rise about 4 minutes earlier every night. ...
Universe Notes - Solon City Schools
Universe Notes - Solon City Schools

... a. Red shift, and cosmic background radiation b. Cosmic background radiation: steady, but very dim signals in the form of microwaves that are emitted all over the sky i. Scientists believe that these microwaves are the remains of the radiation produced during the Big Bang ...
AUST – HORIZON AND BEYOND part 1
AUST – HORIZON AND BEYOND part 1

... A belt of asteroids (minor planets made of rock and metal) lies between Mars and Jupiter. These objects all orbit the sun in roughly circular orbits that lie in the same plane, the ecliptic (Pluto is an exception; it has an elliptical orbit tilted over 17° from the ecliptic). ...
Earth Science - Montville.net
Earth Science - Montville.net

... 7. Using different sized balls, demonstrate how the Earth revolves around the sun and how Earth rotates on its axis. Demonstrate how the moon revolves around Earth. 8. Gather objects such as a golf ball, walnut, tennis ball, golf ball, etc. to compare/contrast the differences in size of the planets ...
What is a planet? Why? How?
What is a planet? Why? How?

...  Starts to collapse under its own weight  Heats up and spin’s up as it collapses  Stuff in center forms star  Stuff in orbit around star clumps together to form larger and larger objects -> planets ...
(Mike Riddle CTI)-84_eng_cr_v4.0
(Mike Riddle CTI)-84_eng_cr_v4.0

... “A nebula is a large amount of gas and dust spread out in an immense volume. All stars begin their lives as parts of nebula. Gravity can pull some of the gas and dust in a nebula together. The interacting cloud is then called a protostar. … A star is born when the contracting gas and dust become so ...
Watch the episode titled “The Milky Way” from the series “The
Watch the episode titled “The Milky Way” from the series “The

... How long does it take Earth to move around the galaxy? About how many galaxies reside in our Local Group? ...
Space Science Unit - World of Teaching
Space Science Unit - World of Teaching

... across Asia ...
Nine Planets and Counting
Nine Planets and Counting

... Conceptual Strand 5: A rich diversity of complex organisms have developed in response to a continually changing environment. STANDARD 6 – THE UNIVERSE Conceptual Strand 6: The cosmos is vast and explored well enough to know its basic structure and operational principles. STANDARD 11 – MOTION Concept ...
Space Science Unit
Space Science Unit

... phase of the star’s life cycle the star is in and other important information about the star. • Most stars are what we consider main sequence (including our sun). They make up 90% of the stars in our sky. These stars are the diagonal strip running through the middle of the chart. ...
The universe
The universe

... Planets around the sun and the surrounding planets revolve around the center of the galaxy (Milky Way). ...
Activities, In the Footsteps of Galileo
Activities, In the Footsteps of Galileo

... Objective: Discover that the band of the Milky Way is primarily composed of an uncountable number of very faint stars. Activity: Pick one of the brighter sections of the Milky Way’s band and draw its star field as seen through the telescope. There may be too many stars to draw! Pick another area of ...
University of Arizona Department of Astronomy
University of Arizona Department of Astronomy

... Phenomenological ...
The Development Of Astronomy
The Development Of Astronomy

... view. (It is now known that this “new star” was a supernova – an exploding star.) This contradicted Aristotle’s viewpoint of an unchanging universe. 4. Brahe made careful observations of a comet. By measuring the parallax for the comet, he was able to show that the comet was further away than the Mo ...
Astronomers Find Extremely Large Planet
Astronomers Find Extremely Large Planet

... Interestingly, these newly discovered silhouette disks are located in several dense clusters composed of hundreds of young forming stars. The fact that the FLAMINGOS survey only found silhouette disks in clusters and not peppered thoughout the immense volume of the molecular clouds supports the poin ...
Half Term Work On Telescopes and Lenses
Half Term Work On Telescopes and Lenses

... a) In the sentence above explain why it is important to have an eyepiece lens with much shorter focal length. ...
Planets and Stars Key Vocabulary: Comparing and Contrasting
Planets and Stars Key Vocabulary: Comparing and Contrasting

... When a comparison of the actual sizes and compositions of planets and stars is made, many differences exist. Planets are much smaller than stars. In regard to composition, planets are made of substances which reflect sunlight, whereas, stars consist of hot gases which produce light. For a comparison ...
1 month - Otterbein
1 month - Otterbein

... • Measurements should be as close as possible in time Gnommon ...
Charting The Universe - University of Windsor
Charting The Universe - University of Windsor

... • A solar day is the time from one noon to the next. • A Solar day is longer than Sidereal day by ~ 4mins. In a solar day the ...
Exam #1 Review
Exam #1 Review

... the line of sight from the Earth to the object being viewed. 17. You should be able to explain the observed motion of a planet when it is viewed from ...
Phys 1533 Descriptive Astronomy
Phys 1533 Descriptive Astronomy

... • Summer solstice - when the sun is at its northernmost point above the celestial equator. This is the northern hemisphere’s longest day of the year. • Winter solstice - when the sun is at its southernmost point below the celestial equator. This is the northern hemisphere’s shortest day of the year. ...
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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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