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Astronomy Powerpoint
Astronomy Powerpoint

... becomes a red giant • Depending on size, becomes a white dwarf or a supernova ...
2 Kepler`s Laws
2 Kepler`s Laws

... Two same stars are orbitting about the center of mass half way between them. The orbital speed of each star is 220km/s and the orbital period of each is 14.4 days. Find the mass M of each star. ...
Lecture - Faculty
Lecture - Faculty

... • The current layout of our solar system may bear little resemblance to its original form • This view is more in line with the “planetary migration” thought to occur even more dramatically in many extrasolar planet systems • It may be difficult to prove or disprove these models of our early solar sy ...
Solar System Basics 1 - Usk Astronomical Society
Solar System Basics 1 - Usk Astronomical Society

... large, and four of them can be easily seen from Earth, with a good pair of binoculars if they are used properly. Saturn is known for its spectacular ring system, which can be easily seen from Earth with a good pair of binoculars used properly. There are a number of rings within the system, none of w ...
Summing up the solar system
Summing up the solar system

... Jupiter, which was also thought to be a storm Uranus & Neptune are about the same size Jupiter is the largest planet ...
FORMATION OF THE SOLAR SYSTEM
FORMATION OF THE SOLAR SYSTEM

...  4 to 5 billion years ago  Fusion began in center ...
b. Compare the similarities and differences of planets to the stars in
b. Compare the similarities and differences of planets to the stars in

... of how this standard might be assessed. Please use these as an example when you are developing your own formative assessments. Remember formative assessment is to be given throughout the teaching of a standard to help you guide your instruction based on students needs. A good formative assessment sh ...
Solar System Jeopardy
Solar System Jeopardy

... when it lines up… sun moon- earth? ...
Extrasolar planets
Extrasolar planets

... For the Earth : v = 0.09 m/s and T = 1 year With a detection limit of 3 m/s, this makes Earth-like planets very hard to find. The first discovery of any extrasolar planet was in 1995 for the star 51 Peg. Now more than 120 Jupiter-size planets have been found around other stars using this method. The ...
Lecture 1 Review Sheet
Lecture 1 Review Sheet

... How many years after the Big Bang began did the Universe become visible? How many millions of years after the Big Bang before the first stars ignited? Review Questions: Explain the significance of the cosmic microwave background radiation. What wavelength did it start out as? What does it record? Ex ...
Life: Definition, Origin, Criteria
Life: Definition, Origin, Criteria

... billions of years • Less than 1.5 times massive than the Sun; otherwise too much UV • More than 0.3 times the mass of the Sun; large warm region near the star for liquid water • Limited to no more than 10 billion stars ...
Planets & Motions
Planets & Motions

... The earth’s axis currently points at Polaris (North Star) Eventually will be Vega Not static! Traces a circle every 26,000 years. A wobble, like a top. Effects the seasons, and has been suggested that it relates to global warming/cooling (alone = inaccurate due to ...
The Solar System - University of Sioux Falls
The Solar System - University of Sioux Falls

... Mars has the nickname “Red Planet” for its appearance The average temperature is ...
1) Name the following: a) The smallest and largest planets of the
1) Name the following: a) The smallest and largest planets of the

... a) The smallest and largest planets of the solar system. b) The galaxy to which we belong. c) The only natural satellite of the earth. d) The biggest star known to us present in Orion constellation. e))The brightest object in the night sky after the moon, which rotates from east to west. f)The plane ...
A Census of the Solar System
A Census of the Solar System

... 1. Planets and their satellites all lie in the same plane - the ecliptic – to within a few degrees 2. Sun’s rotational equator aligned with ecliptic 3. Planetary orbits are nearly circular ellipses 4. Planets all revolve in same W -> E direction 5. Sun and planets all rotate on axes in same W –E dir ...
Life: Definition, Origin, Criteria
Life: Definition, Origin, Criteria

... • Planets should form naturally out of stellar ‘debris’ in the disk • We can now detect many planets, from Jupiter to Earth size ...
Life: Definition, Origin, Criteria
Life: Definition, Origin, Criteria

... • Planets should form naturally out of stellar ‘debris’ in the disk • We can now detect many planets, from Jupiter to Earth size ...
Powerpoint
Powerpoint

... Moon, the Sun, eight other planets and their satellites, and smaller objects, such as asteroids and comets. ...
Day 1 Notes
Day 1 Notes

... Our new unit is Earth’s Role in Space, where do you think Earth fits in space? Is it a large or small part of space? Is it unique to other aspects of space? ...
Our Solar System
Our Solar System

... Discovered through math 7 known moons Triton largest moon Great Dark Spot thought to be a hole, similar to the hole in the ozone layer on Earth ...
The Solar System and the Universe
The Solar System and the Universe

... 8. Energy is released in the core of the Sun through a process called _____________________. When this process is accompanied by high temperature within the sun it is referred to as ___________________________. 9. During thermonuclear fusion, four ________________ nuclei fuse together to form one __ ...
Our Solar System
Our Solar System

... Discovered through math 7 known moons Triton largest moon Great Dark Spot thought to be a hole, similar to the hole in the ozone layer on Earth ...
Our Solar System Inner Planets
Our Solar System Inner Planets

... Discovered through math 7 known moons Triton largest moon Great Dark Spot thought to be a hole, similar to the hole in the ozone layer on Earth ...
OurSolarSystem_part1
OurSolarSystem_part1

... might have looked when the Cassini-Huygen’s probe dropped into its atmosphere in Dec., 2004. ...
Another Earth - WordPress.com
Another Earth - WordPress.com

... evidence of life, the ones discovered so far are not good candidates. ...
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IAU definition of planet



The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has ""cleared the neighborhood"" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a ""dwarf planet"". According to the IAU, ""planets and dwarf planets are two distinct classes of objects"". A non-satellite body fulfilling only the first criterion is termed a ""small Solar System body"" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to this definition, there are eight planets in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.
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