The night sky - Mr. Champion
... a clear night and noticed patterns and changes. • Humans have for many years speculated at what was above us. • This is the study of astronomy – what is beyond Earth. • The first would likely be the most numerous object we see – stars. ...
... a clear night and noticed patterns and changes. • Humans have for many years speculated at what was above us. • This is the study of astronomy – what is beyond Earth. • The first would likely be the most numerous object we see – stars. ...
Conditions for Life
... as it orbits around it and its axial tilt during rotation. Look at a globe of Earth. Notice the 23½° tilt of the Earth on its axis. If the Earth did not keep this angle during rotation, the seasons would be very different as the Earth revolved around the Sun. Locate the area in which you live in on ...
... as it orbits around it and its axial tilt during rotation. Look at a globe of Earth. Notice the 23½° tilt of the Earth on its axis. If the Earth did not keep this angle during rotation, the seasons would be very different as the Earth revolved around the Sun. Locate the area in which you live in on ...
The Night Sky
... The Night Sky June offers the last chance this century to view one of the rarest of astronomical phenomena. In the early evening of June 5th, the planet Venus will pass directly between the Sun and Earth, an event known as a transit. The planet will be seen as a small black dot moving slowly across ...
... The Night Sky June offers the last chance this century to view one of the rarest of astronomical phenomena. In the early evening of June 5th, the planet Venus will pass directly between the Sun and Earth, an event known as a transit. The planet will be seen as a small black dot moving slowly across ...
05Sky1.ppt - NMSU Astronomy
... • There is no evidence that astrology actually works. • Note that the predictions of astrology may work sometimes; almost certainly, some of these predictions will work sometimes by chance! Certainly, astrology is not a fully deterministic theory; if it claimed to be so, even a single example of a f ...
... • There is no evidence that astrology actually works. • Note that the predictions of astrology may work sometimes; almost certainly, some of these predictions will work sometimes by chance! Certainly, astrology is not a fully deterministic theory; if it claimed to be so, even a single example of a f ...
Astronomy Basics
... massive as Earth. These cores are so massive that they accrete gas, forming gas giant planets. ...
... massive as Earth. These cores are so massive that they accrete gas, forming gas giant planets. ...
Age and Origin of the Earth
... • Expanding universe hypothesis- Edvin Hubble1920, validated in 1972. • Everything originated from a point-singularity • Gigantic explosion- 15 billion years ago, energy converted into matter, first atoms began to form • Matter expanded to form billions of galaxies, in time with their stars with the ...
... • Expanding universe hypothesis- Edvin Hubble1920, validated in 1972. • Everything originated from a point-singularity • Gigantic explosion- 15 billion years ago, energy converted into matter, first atoms began to form • Matter expanded to form billions of galaxies, in time with their stars with the ...
The Solar System Sections 16.1-16.8
... Formation of the Solar System • Began with a large, swirling volume of cold gases and dust – a rotating solar nebula • Contracted under the influence of its own gravity – into a flattened, rotating disk • Further contraction produced the protosun and eventually accreted the planets • As particles m ...
... Formation of the Solar System • Began with a large, swirling volume of cold gases and dust – a rotating solar nebula • Contracted under the influence of its own gravity – into a flattened, rotating disk • Further contraction produced the protosun and eventually accreted the planets • As particles m ...
Earth`s Place in the Universe Test 1
... B) the age of a one-year-old star. D) the time it takes light to travel from Earth to the Sun. 3) Hunter goes outside and notices that the sun looks larger than the other stars he has seen. Why does the sun appear larger than the other stars? The Sun looks larger because it's closer to A) The Sun is ...
... B) the age of a one-year-old star. D) the time it takes light to travel from Earth to the Sun. 3) Hunter goes outside and notices that the sun looks larger than the other stars he has seen. Why does the sun appear larger than the other stars? The Sun looks larger because it's closer to A) The Sun is ...
Charting The Universe - University of Windsor
... As the heavens appear fixed or constant… ….ancient cultures have grouped stars into Constellations, representing ‘gods in the sky’, mythical beings, or heroes. Different (Babylon, Greek, Chinese) cultures gave different names to the constellations, but – interestingly – some symbols are the same! ...
... As the heavens appear fixed or constant… ….ancient cultures have grouped stars into Constellations, representing ‘gods in the sky’, mythical beings, or heroes. Different (Babylon, Greek, Chinese) cultures gave different names to the constellations, but – interestingly – some symbols are the same! ...
Humanism for Secondary School Pupils S4 – 6
... hydrogen and helium nuclei. After about 30 minutes the Big Bang was over. If you find this hard to understand, don’t worry – you’re not alone. Only a very few scientists can follow the maths and physics involved. However, they all agree that this is the best explanation that fits the evidence; so un ...
... hydrogen and helium nuclei. After about 30 minutes the Big Bang was over. If you find this hard to understand, don’t worry – you’re not alone. Only a very few scientists can follow the maths and physics involved. However, they all agree that this is the best explanation that fits the evidence; so un ...
universal gravitation pdf
... • If speed is faster than needed for circular orbit, elliptical orbit can result • Ellipse is oval with two focal points (foci) • Speed varies in elliptical orbit • Faster speed close to earth, slower when farther away • All planets follow elliptical orbits around sun ...
... • If speed is faster than needed for circular orbit, elliptical orbit can result • Ellipse is oval with two focal points (foci) • Speed varies in elliptical orbit • Faster speed close to earth, slower when farther away • All planets follow elliptical orbits around sun ...
Light Years Away - Sitka School District
... trillion kilometers way and use a high powered telescope to witness the child’s 8th birthday. How old is the child when the aliens witness the party? (Hint: calculate the number of light years this planet is from Earth) ...
... trillion kilometers way and use a high powered telescope to witness the child’s 8th birthday. How old is the child when the aliens witness the party? (Hint: calculate the number of light years this planet is from Earth) ...
Astronomy Chap 1
... 1. How would you describe the motion of the stars visible at night? 2. How would the motion of stars change if viewed from the equator, Michigan, the North Pole? Draw a picture for each to help your answer. 3. If you watched these same stars night after night, what would change? 4. What factors ulti ...
... 1. How would you describe the motion of the stars visible at night? 2. How would the motion of stars change if viewed from the equator, Michigan, the North Pole? Draw a picture for each to help your answer. 3. If you watched these same stars night after night, what would change? 4. What factors ulti ...
Space and the Solar System
... apart the planets are from each other would not fit on a page in a book. • The same is true of the size of the planets. The sun’s width is 10 times that of Jupiter. If drawings were to scale, the entire solar system would not fit on one page. ...
... apart the planets are from each other would not fit on a page in a book. • The same is true of the size of the planets. The sun’s width is 10 times that of Jupiter. If drawings were to scale, the entire solar system would not fit on one page. ...
Distance Light travels in ONE year!
... years to get to that planet. • If it takes light 10 years to get from one star to Earth, that star is 10 light years away. • If satellite is put on a planet located 1 light year away, a radio signal would take 2 years to be sent, reflected, and returned to Earth. ...
... years to get to that planet. • If it takes light 10 years to get from one star to Earth, that star is 10 light years away. • If satellite is put on a planet located 1 light year away, a radio signal would take 2 years to be sent, reflected, and returned to Earth. ...
Solar System Fundamentals
... decided on the term plutoid as a name for dwarf planets like Pluto. • This is a category of dwarf planets which orbit beyond Neptune and similar to Pluto. ...
... decided on the term plutoid as a name for dwarf planets like Pluto. • This is a category of dwarf planets which orbit beyond Neptune and similar to Pluto. ...
Chapter 25 Teacher Notes
... •The planets earned that name because they appeared to “wander” among the stars. •The stars appeared to rotate around a fixed point- the North Star – Polaris. Geocentric Model •Earth is stationary while objects move around it. •Accepted theory for 1400 years Heliocentric Model •Greek Astronomer Aris ...
... •The planets earned that name because they appeared to “wander” among the stars. •The stars appeared to rotate around a fixed point- the North Star – Polaris. Geocentric Model •Earth is stationary while objects move around it. •Accepted theory for 1400 years Heliocentric Model •Greek Astronomer Aris ...
And a Whole Lot Farther to the Nearest Star
... *Technically, it’s close companion Proxima Centauri is the closest—but it never gets much respect, being much smaller and dimmer than its sibling stars! ...
... *Technically, it’s close companion Proxima Centauri is the closest—but it never gets much respect, being much smaller and dimmer than its sibling stars! ...
Introduction to Space
... closest celestial body (any object beyond the Earth and visible in the sky) to the Earth ~From a dark site away from city lights, we can see nearly 3000 stars (compared to the only a few hundred from the city) ~Along with the Moon, a few planets are clearly visible in our sky. Because planets are fu ...
... closest celestial body (any object beyond the Earth and visible in the sky) to the Earth ~From a dark site away from city lights, we can see nearly 3000 stars (compared to the only a few hundred from the city) ~Along with the Moon, a few planets are clearly visible in our sky. Because planets are fu ...
astrophysics 2009
... -the pair of diagrams below might help to show this. -they each show the same constellation pattern of stars. -however, if you cross your eyes and allow one image to merge with the other (this is a stereogram a bit like Magic Eye), it can be seen that one of the stars is further away than the other ...
... -the pair of diagrams below might help to show this. -they each show the same constellation pattern of stars. -however, if you cross your eyes and allow one image to merge with the other (this is a stereogram a bit like Magic Eye), it can be seen that one of the stars is further away than the other ...
Solar System PPT
... though it appears as though the Sun is moving! The Sun is the force which keeps our solar system together! • Rotation – spinning of Earth on its axis (23 degrees), which occurs once every 24 hours. • Earth moves around the Sun in a regular, curved path called an orbit • It takes about one year for E ...
... though it appears as though the Sun is moving! The Sun is the force which keeps our solar system together! • Rotation – spinning of Earth on its axis (23 degrees), which occurs once every 24 hours. • Earth moves around the Sun in a regular, curved path called an orbit • It takes about one year for E ...
wk02noQ
... B. The Earth orbits the sun (once per year) Let the sun mark the location of RA=0 deg on the Vernal equinox. ...
... B. The Earth orbits the sun (once per year) Let the sun mark the location of RA=0 deg on the Vernal equinox. ...
Ice Giants
... • To be tilted on the side Uranus must have had a collision. • The colliding object must have been huge to deflect a planet the size of Uranus (14 times the mass of Earth). ...
... • To be tilted on the side Uranus must have had a collision. • The colliding object must have been huge to deflect a planet the size of Uranus (14 times the mass of Earth). ...
Geocentric model
In astronomy, the geocentric model (also known as geocentrism, or the Ptolemaic system) is a description of the cosmos where Earth is at the orbital center of all celestial bodies. This model served as the predominant cosmological system in many ancient civilizations such as ancient Greece including the noteworthy systems of Aristotle (see Aristotelian physics) and Ptolemy. As such, they believed that the Sun, Moon, stars, and naked eye planets circled Earth.Two commonly made observations supported the idea that Earth was the center of the Universe. The stars, the sun, and planets appear to revolve around Earth each day, making Earth the center of that system. The stars were thought to be on a celestial sphere, with the earth at its center, that rotated each day, using a line through the north and south pole as an axis. The stars closest to the equator appeared to rise and fall the greatest distance, but each star circled back to its rising point each day. The second observation supporting the geocentric model was that the Earth does not seem to move from the perspective of an Earth-bound observer, and that it is solid, stable, and unmoving.Ancient Roman and medieval philosophers usually combined the geocentric model with a spherical Earth. It is not the same as the older flat Earth model implied in some mythology, as was the case with the biblical and postbiblical Latin cosmology. The ancient Jewish Babylonian uranography pictured a flat Earth with a dome-shaped rigid canopy named firmament placed over it. (רקיע- rāqîa').However, the ancient Greeks believed that the motions of the planets were circular and not elliptical, a view that was not challenged in Western culture until the 17th century through the synthesis of theories by Copernicus and Kepler.The astronomical predictions of Ptolemy's geocentric model were used to prepare astrological and astronomical charts for over 1500 years. The geocentric model held sway into the early modern age, but from the late 16th century onward was gradually superseded by the heliocentric model of Copernicus, Galileo and Kepler. There was much resistance to the transition between these two theories. Christian theologians were reluctant to reject a theory that agreed with Bible passages (e.g. ""Sun, stand you still upon Gibeon"", Joshua 10:12 – King James 2000 Bible). Others felt a new, unknown theory could not subvert an accepted consensus for geocentrism.