Chapter 1 - Colorado Mesa University
... • Our earth orbits our sun at a distance of ~ 150 million km, what we call an Astronomical Unit or AU and is tilted 23.6 degrees to its orbital plane. • Our sun orbits the center of the Milky Way about 8.5 kPc out. ...
... • Our earth orbits our sun at a distance of ~ 150 million km, what we call an Astronomical Unit or AU and is tilted 23.6 degrees to its orbital plane. • Our sun orbits the center of the Milky Way about 8.5 kPc out. ...
Astronomy Directed Reading
... 76. How much of the sun’s total mass is composed of hydrogen and helium? ___________________ _____ 77. The sun’s spectrum reveals that it contains a. almost nothing besides hydrogen. c. only hydrogen and helium. ...
... 76. How much of the sun’s total mass is composed of hydrogen and helium? ___________________ _____ 77. The sun’s spectrum reveals that it contains a. almost nothing besides hydrogen. c. only hydrogen and helium. ...
Rocky Planets Gas Giants
... In 1995, SW3 split into at least five chunks. In June 2006, it passed within a relatively close 11.7 million kilometers (7.3 million miles) of Earth. Around that time, it disintegrated even more. Scientists counted 68 fragments. The two largest chunks are called B and C. Each is several hundred met ...
... In 1995, SW3 split into at least five chunks. In June 2006, it passed within a relatively close 11.7 million kilometers (7.3 million miles) of Earth. Around that time, it disintegrated even more. Scientists counted 68 fragments. The two largest chunks are called B and C. Each is several hundred met ...
star - Bakersfield College
... Meteor – small to boulder-size rock particle that enters the earth’s atmosphere – air friction causes the rock to “burn” creating a “falling-star” ...
... Meteor – small to boulder-size rock particle that enters the earth’s atmosphere – air friction causes the rock to “burn” creating a “falling-star” ...
Slide 1
... Meteor – small to boulder-size rock particle that enters the earth’s atmosphere – air friction causes the rock to “burn” creating a “falling-star” ...
... Meteor – small to boulder-size rock particle that enters the earth’s atmosphere – air friction causes the rock to “burn” creating a “falling-star” ...
1.1 Organization of the Universe
... By the end of today, all SWBAT… Describe the organization of the solar system Illustrate how planets move around the Sun Define how orbit size impacts year length ...
... By the end of today, all SWBAT… Describe the organization of the solar system Illustrate how planets move around the Sun Define how orbit size impacts year length ...
AUST – HORIZON AND BEYOND part 1
... (other than light years) of comparing the vast distances of space. ...
... (other than light years) of comparing the vast distances of space. ...
We especially need imagination in science. It is not all mathematics
... Observation: Asteroids & Comets • Their orbits generally lie close to the plane of the planetary orbits, although they are usually tilted a bit more. Some have quite large eccentricities. • Almost 10,000 asteroids have been identified; these are probably only the largest ones. The largest asteroids ...
... Observation: Asteroids & Comets • Their orbits generally lie close to the plane of the planetary orbits, although they are usually tilted a bit more. Some have quite large eccentricities. • Almost 10,000 asteroids have been identified; these are probably only the largest ones. The largest asteroids ...
4 The Sun
... and called the chromosphere. At the top of the chromosphere the temperature is about 10.000 K and it increases dramatically thereafter, to about 1.000.000 K in the uppermost layer of the solar atmosphere called the corona. Due to these high temperatures all its main constituents (mostly hydrogen and ...
... and called the chromosphere. At the top of the chromosphere the temperature is about 10.000 K and it increases dramatically thereafter, to about 1.000.000 K in the uppermost layer of the solar atmosphere called the corona. Due to these high temperatures all its main constituents (mostly hydrogen and ...
Introduction to Astronomy
... • Astrophotographers: please see me after class. • Questions on motion of the stars? • Try out Sky View Café and/or Sky Chart III… ...
... • Astrophotographers: please see me after class. • Questions on motion of the stars? • Try out Sky View Café and/or Sky Chart III… ...
The Origin of the Solar System and Other Planetary Systems
... 1. Mercury’s large metallic core may be the result of a collision between two planetesimals, where much of the mantle was lost. 2. Two large bodies may have merged to form Venus. 3. Earth–Moon system may have formed after a collision. 4. A late collision may have caused Mars’ north–south asymmetry a ...
... 1. Mercury’s large metallic core may be the result of a collision between two planetesimals, where much of the mantle was lost. 2. Two large bodies may have merged to form Venus. 3. Earth–Moon system may have formed after a collision. 4. A late collision may have caused Mars’ north–south asymmetry a ...
Phys 214. Planets and Life
... At least a few other Moon (3,400 km) -to Mars (6,800 km) size objects might have been present in early times, but eventually smashed into one of the four planets that survived . ...
... At least a few other Moon (3,400 km) -to Mars (6,800 km) size objects might have been present in early times, but eventually smashed into one of the four planets that survived . ...
apparent magnitude
... •Uranus (YOOR uh nuhs) was discovered by the English amateur astronomer William Herschel in 1781. •The atmosphere of Uranus is mainly hydrogen and methane. •Because these gases absorb the red part of sunlight very strongly, Uranus appears blue-green in color. •Uranus and Neptune have much less mass ...
... •Uranus (YOOR uh nuhs) was discovered by the English amateur astronomer William Herschel in 1781. •The atmosphere of Uranus is mainly hydrogen and methane. •Because these gases absorb the red part of sunlight very strongly, Uranus appears blue-green in color. •Uranus and Neptune have much less mass ...
15 - Edmodo
... Activity B – Our Solar System 3. The Composition of our Solar System After the Sun formed, the leftover dust, gases, and other debris in the nebula continued to spin, creating a disk around the new star. Small bodies began to form, growing into the planets, moons, asteroids, and comets that make up ...
... Activity B – Our Solar System 3. The Composition of our Solar System After the Sun formed, the leftover dust, gases, and other debris in the nebula continued to spin, creating a disk around the new star. Small bodies began to form, growing into the planets, moons, asteroids, and comets that make up ...
Jun - Wadhurst Astronomical Society
... decreasing as the distance between it and ourselves increases. Mars is further from the Sun than we are and so takes comparatively longer to complete an orbit. Having come together for opposition in April, the Earth is now rushing ahead of, and away from, Mars. The planet is now moving direct (west ...
... decreasing as the distance between it and ourselves increases. Mars is further from the Sun than we are and so takes comparatively longer to complete an orbit. Having come together for opposition in April, the Earth is now rushing ahead of, and away from, Mars. The planet is now moving direct (west ...
Lecture 1 – Astronomy
... The summer of 1609 Galileo Galilei (1564 – 1642) learned about a new invention in the Netherlands that could bring far objects to appear closer. An optician had made the first telescope. Galileo bought some lenses from his local optician and build his own telescope. When he pointed the telescope tow ...
... The summer of 1609 Galileo Galilei (1564 – 1642) learned about a new invention in the Netherlands that could bring far objects to appear closer. An optician had made the first telescope. Galileo bought some lenses from his local optician and build his own telescope. When he pointed the telescope tow ...
Unit XII Study Guide
... c. the inward pull of gravity and outward push of thermal pressure are balanced. d. Nuclear fusion is a stabilizing process. ____ 16. For the sun to be stable, the inward and outward forces within the sun must be a. In equilibrium. b. part of the fusion reaction. c. Focused in the core. d. balanced ...
... c. the inward pull of gravity and outward push of thermal pressure are balanced. d. Nuclear fusion is a stabilizing process. ____ 16. For the sun to be stable, the inward and outward forces within the sun must be a. In equilibrium. b. part of the fusion reaction. c. Focused in the core. d. balanced ...
MLAwiki
... 1. Second closest planet to the sun 2. Named after the Roman goddess of __________ and beauty 3. Venus is the hottest planet at __________˚C 4. It is also the brightest planet in the sky 5. Venus rotates in the opposite direction than most of the other planets a. Venus rotates __________ to ________ ...
... 1. Second closest planet to the sun 2. Named after the Roman goddess of __________ and beauty 3. Venus is the hottest planet at __________˚C 4. It is also the brightest planet in the sky 5. Venus rotates in the opposite direction than most of the other planets a. Venus rotates __________ to ________ ...
What`s That Up In The Sky???
... or rock and metal in space came together long ago to form the planets and moons. Asteroids are leftover pieces of rock from when the solar system was formed ...
... or rock and metal in space came together long ago to form the planets and moons. Asteroids are leftover pieces of rock from when the solar system was formed ...
Lecture 2 - The University Centre in Svalbard
... The summer of 1609 Galileo Galilei (1564 – 1642) learned about a new invention in the Netherlands that could bring far objects to appear closer. An optician had made the first telescope. Galileo bought some lenses from his local optician and build his own telescope. When he pointed the telescope tow ...
... The summer of 1609 Galileo Galilei (1564 – 1642) learned about a new invention in the Netherlands that could bring far objects to appear closer. An optician had made the first telescope. Galileo bought some lenses from his local optician and build his own telescope. When he pointed the telescope tow ...
The Origin of the Solar System
... Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than ...
... Sun: ~ size of a small plum. Mercury, Venus, Earth, Mars: ~ size of a grain of salt. Jupiter: ~ size of an apple seed. Saturn: ~ slightly smaller than ...
Astrophysics - Student Reference Packet
... Jupiter, Saturn, Uranus, and Neptune. The IAU determined that Pluto has not cleared its neighborhood because it orbits among the objects of the Kuiper Belt. As such, Pluto is no longer classified as a planet, but rather as a dwarf planet. Eris has also been designated as a dwarf planet. It is expect ...
... Jupiter, Saturn, Uranus, and Neptune. The IAU determined that Pluto has not cleared its neighborhood because it orbits among the objects of the Kuiper Belt. As such, Pluto is no longer classified as a planet, but rather as a dwarf planet. Eris has also been designated as a dwarf planet. It is expect ...
award
... What conclusion can be drawn from the fact that some planets with solid surfaces and satellites have impact craters? Collisions between Solar System bodies and planetesimals were common at one time. The young planets had softer surfaces. Volcanoes were very active in the early stages of planet forma ...
... What conclusion can be drawn from the fact that some planets with solid surfaces and satellites have impact craters? Collisions between Solar System bodies and planetesimals were common at one time. The young planets had softer surfaces. Volcanoes were very active in the early stages of planet forma ...
Solar System
The Solar System comprises the Sun and the planetary system that orbits it, either directly or indirectly. Of those objects that orbit the Sun directly, the largest eight are the planets, with the remainder being significantly smaller objects, such as dwarf planets and small Solar System bodies such as comets and asteroids. Of those that orbit the Sun indirectly, two are larger than the smallest planet.The Solar System formed 4.6 billion years ago from the gravitational collapse of a giant interstellar molecular cloud. The vast majority of the system's mass is in the Sun, with most of the remaining mass contained in Jupiter. The four smaller inner planets, Mercury, Venus, Earth and Mars, are terrestrial planets, being primarily composed of rock and metal. The four outer planets are giant planets, being substantially more massive than the terrestrials. The two largest, Jupiter and Saturn, are gas giants, being composed mainly of hydrogen and helium; the two outermost planets, Uranus and Neptune, are ice giants, being composed largely of substances with relatively high melting points compared with hydrogen and helium, called ices, such as water, ammonia and methane. All planets have almost circular orbits that lie within a nearly flat disc called the ecliptic.The Solar System also contains smaller objects. The asteroid belt, which lies between Mars and Jupiter, mostly contains objects composed, like the terrestrial planets, of rock and metal. Beyond Neptune's orbit lie the Kuiper belt and scattered disc, populations of trans-Neptunian objects composed mostly of ices, and beyond them a newly discovered population of sednoids. Within these populations are several dozen to possibly tens of thousands of objects large enough to have been rounded by their own gravity. Such objects are categorized as dwarf planets. Identified dwarf planets include the asteroid Ceres and the trans-Neptunian objects Pluto and Eris. In addition to these two regions, various other small-body populations, including comets, centaurs and interplanetary dust, freely travel between regions. Six of the planets, at least three of the dwarf planets, and many of the smaller bodies are orbited by natural satellites, usually termed ""moons"" after the Moon. Each of the outer planets is encircled by planetary rings of dust and other small objects.The solar wind, a stream of charged particles flowing outwards from the Sun, creates a bubble-like region in the interstellar medium known as the heliosphere. The heliopause is the point at which pressure from the solar wind is equal to the opposing pressure of interstellar wind; it extends out to the edge of the scattered disc. The Oort cloud, which is believed to be the source for long-period comets, may also exist at a distance roughly a thousand times further than the heliosphere. The Solar System is located in the Orion Arm, 26,000 light-years from the center of the Milky Way.