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Teacher Resource Pack Unit Planning Resources
Teacher Resource Pack Unit Planning Resources

... toward a common center. Unlike the much larger outer planets, help, but it is essential that all which are mostly gas, the earth is mostly rock, with three-fourths students, sometimes working of its surface covered by a relatively thin layer of water and the together in small groups, make entire pla ...
Sky & Astronomy - Wayne State University Physics and Astronomy
Sky & Astronomy - Wayne State University Physics and Astronomy

... On a clear night, about 3,000 stars are visible to the naked eye in sky around us Ancient Chinese, Egyptians, and Greeks have grouped them into constellations Today we use “constellation” to mean one of the 88 sectors of the sky Some of the old names are still in use Constellations are listed in App ...
Become a Member - Department of Physics and Astronomy
Become a Member - Department of Physics and Astronomy

... and the Sun were substantially identical. Russell wrote [2] “The agreement of the solar and terrestrial lists is such as to confirm very strongly Rowland’s opinion that, if the Earth’s crust should be raised to the temperature of the Sun’s atmosphere, it would give a very similar absorption spectrum ...
Celestial Equator
Celestial Equator

... ideas, to describe planetary motions about the Earth in a manner in keeping with the geocentric model. Their final model was that of Ptolemy (2nd century), which held sway until the Copernican revolution of the 16th century. The Earth lies at 93 million miles (or 1 astronomical unit) from the Sun, w ...
Star Gazing
Star Gazing

... measure 30o (3 fist lengths) to the right/north of sunset now. • Specific directions on website for what you need to write down. • Turn in the picture with details listed in the ...
Word version
Word version

... Over time, our ancestors noticed yet another, more subtle change that took place in the sky. From night to night, month to month, different constellations make their appearance at night. Sagittarius and Scorpius show up in the summer night sky, while Orion and Taurus appear during winter evenings. A ...
Day_39
Day_39

... Most of the extrasolar planets discovered to date are quite massive and have orbits that are very different from planets in our solar system ...
Name: Date:
Name: Date:

... 8. How can parallax be used to determine the distance of stars from the Earth? ______________ ________________________________________________________________________ ________________________________________________________________________ ____________________________________________________________ ...
Celestial Motions
Celestial Motions

... too small to notice with the naked eye 2. Earth does not orbit Sun; it is the center of the universe With rare exceptions such as Aristarchus, the Greeks rejected the correct explanation (1) because they did not think the stars could be that far away Thus setting the stage for the long, historical s ...
Unit 1
Unit 1

... hydrogen into helium is called its main sequence lifetime – Stars spend most of their lives on the main sequence – Lifetime depends on the star’s mass and luminosity • More luminous stars burn their energy more rapidly than less luminous stars. • High-mass stars are more luminous than low-mass stars ...
chapter 2 - Test Bank, Manual Solution, Solution Manual
chapter 2 - Test Bank, Manual Solution, Solution Manual

... Evidence is reality, and scientists must constantly check their ideas against reality. In order to understand nature, scientists must be objective and not ignore any known evidence. ...
A-105 Homework 1
A-105 Homework 1

... 12. (2 pts.) If the fastest passenger aircraft can fly 1600 km/hr (1000 mph), how many years would it take to reach the sun (in hours)? The Galactic center (in years)? (1 pc  3  1013 km.) ...
The Life Cycle of the Stars
The Life Cycle of the Stars

... The star-filled sky is in many ways like a large crowd of people. Within that group you may find babies, children, teenagers, adults and even senior citizens. Like humans, stars pass through different stages in their lives. They are born, they mature and, eventually, they die. However, unlike humans ...
planet
planet

... rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its ...
Solar system topics
Solar system topics

... Amazingly enough, we have found a number of meteorites on the Earth that came from Mars. One fell in Nakhla, Egypt, in 1911. It weighed 10 kg. The most famous one (ALH84001) was discovered in the Allan Hills of Antarctica. It is dated to be 4.5 billion years old. In a remarkable paper published in ...
sidereal day
sidereal day

... observers meridian, it is a direct indication of whether a celestial object of known right ascension is observable at that instant. •Our clocks are based upon Solar time and we measure stars rising about 4 minutes earlier each day. •Why does this happen? The short version…because of Earth’s motion a ...
Stellar Magnitude, Distance, and Motion
Stellar Magnitude, Distance, and Motion

... seconds of arc per year o Proper motion is not large.  The star with the largest proper motion is called Barnard's Star.  It moves 10.3 seconds of arc per year. o Since the moon subtends about 1/2 of a degree (which is 1/2 x 60 x 60 = 1800 seconds of arc) on the celestial sphere, it takes Barnard' ...
PHYSICS 1500 - The University of Sydney
PHYSICS 1500 - The University of Sydney

... impression of a ‘hot Jupiter’ – a giant planet in a very close orbit around its parent star. The first such planet discovered was 51 Pegasi b which takes 4.23 days to orbit a sun-like star. The system is about 50 light years from Earth. The planet was found using the radial velocity method for detec ...
GY 112 Lecture Notes - University of South Alabama
GY 112 Lecture Notes - University of South Alabama

... primordial "stuff" still exists. It would be in a very slow orbit around our sun, but would otherwise not really be part of what we recognize as the solar system. And it is a long way out (some think this region is between 1 and 2 light years away – beam me up Scottie!). This region has a name; the ...
celestial equator
celestial equator

... equator. It is a projection of the Earth's equator out to the celestial sphere. The number of degrees that a celestial object is north or south of the celestial equator is called the declination (DEC) It is the analogue of latitude on the sky. The analogue of longitude is called right ascension (RA) ...
“Breakthroughs” of the 20th Century
“Breakthroughs” of the 20th Century

... Astronomy was revolutionized in the 20th century. The electron was discovered in 1897 and this transformed spectroscopy and introduced plasma and magnetohydrodynamic physics and astro-chemistry. Einstein’s E = mc2, solved the problem of stellar energy generation and spawned the study of elemental nu ...
HNRS 227 Lecture #2 Chapters 2 and 3
HNRS 227 Lecture #2 Chapters 2 and 3

... “OK stellar recruits, it’s time to learn what’s really in store for you! I know that before you signed up to be a massive star you read the fancy brochures that talked about how brightly you’d be shining and how you’d be visible from halfway across the galaxy. But you mo-rons must not have bothered ...
grade vii and viii - Sacred Heart CMI Public School
grade vii and viii - Sacred Heart CMI Public School

... Sun, and these would eventually form the rocky planets of Mercury, Venus, Earth, and Mars. Because metallic elements only comprised a very small fraction of the solar nebula, the terrestrial planets could not grow very large. The giant planets (Jupiter, Saturn, Uranus, and Neptune) formed further ou ...
PowerPoint
PowerPoint

... Some Reasons for the great abundance of Low-Mass stars… 1) Obviously requires less material to make (many!) Low-Mass Stars, than High-Mass ones; 2) Even though High-Mass stars have more “fuel” (Hydrogen)… ...
here
here

... When most stars get old they bloat and become ‘red giants’. Our sun will eventually run out of fuel and become a red giant. As it gets larger it will engulf the inner planets, possibly the earth as well. It may explode or go ‘Super Nova’. Some times a red giant just runs out of fuel, dims and grows ...
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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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