
The formation of the solar system
... the larger planets formed via collisions of such first generation planetesimals (e.g. Wetherill 1990, Chambers 2003). The different groups of meteorites sample these first generation planetesimals and cover the different evolutionary steps of early solar system evolution in great detail. In general, ...
... the larger planets formed via collisions of such first generation planetesimals (e.g. Wetherill 1990, Chambers 2003). The different groups of meteorites sample these first generation planetesimals and cover the different evolutionary steps of early solar system evolution in great detail. In general, ...
April 2016 - Newbury Astronomical Society
... The diagram above shows how Earth’s axis of rotation is tilted. The dashed black line marked as ‘Perpendicular to orbit’ is the axis of rotation of the Solar System around which all the planets, including Earth, orbit the Sun. The solid black line marked as: ‘North Celestial Pole’ and ‘South Celesti ...
... The diagram above shows how Earth’s axis of rotation is tilted. The dashed black line marked as ‘Perpendicular to orbit’ is the axis of rotation of the Solar System around which all the planets, including Earth, orbit the Sun. The solid black line marked as: ‘North Celestial Pole’ and ‘South Celesti ...
printer-friendly version of benchmark
... 2. Students have a misconception that nighttime visible stars are located within our solar system. Such a notion has been considered since the times of the ancient Greeks. Aristotle proposed a geocentric model of the solar system with Earth at the center. Crystalline spheres surrounded Earth. Each o ...
... 2. Students have a misconception that nighttime visible stars are located within our solar system. Such a notion has been considered since the times of the ancient Greeks. Aristotle proposed a geocentric model of the solar system with Earth at the center. Crystalline spheres surrounded Earth. Each o ...
Andy Fraknoi
... Chapter 9: Venus & Mars How does Venus resemble the Earth – how is it different? Does Venus have a strong magnetic field (like Earth’s)? What are Venus’ diameter, mass and density? What is the average temperature of Venus? What is the surface pressure of Venus’ atmosphere? What are the two most comm ...
... Chapter 9: Venus & Mars How does Venus resemble the Earth – how is it different? Does Venus have a strong magnetic field (like Earth’s)? What are Venus’ diameter, mass and density? What is the average temperature of Venus? What is the surface pressure of Venus’ atmosphere? What are the two most comm ...
EarthScience-Astronomy-TheSolarSystem
... 13. Describe how the Moon and the Sun cause the tides. a. Tides- The rise and fall of the surface of oceans, seas, bays, rivers, and other water bodies caused by the gravitational attraction of the Moon and Sun occurring unequally on different parts of the Earth. b. Approximately 70 percent of Eart ...
... 13. Describe how the Moon and the Sun cause the tides. a. Tides- The rise and fall of the surface of oceans, seas, bays, rivers, and other water bodies caused by the gravitational attraction of the Moon and Sun occurring unequally on different parts of the Earth. b. Approximately 70 percent of Eart ...
The Prospective Aspect of the Cosmogonic Models in Laozi and T
... • Chief chemical elements of ISM are hydrogen, helium with some metal and non-metal elements. Studies have found organic radicals such as OH, CO and CH4, and even molecules of up to 8-9 atoms. • Interstellar matter is of two kinds: – Insterstellar gas includes gaseous atoms, molecules, electrons and ...
... • Chief chemical elements of ISM are hydrogen, helium with some metal and non-metal elements. Studies have found organic radicals such as OH, CO and CH4, and even molecules of up to 8-9 atoms. • Interstellar matter is of two kinds: – Insterstellar gas includes gaseous atoms, molecules, electrons and ...
Lecture8_2014_v2 - UCO/Lick Observatory
... • Two planets are several times more massive than Jupiter • The third planet, mass 75% that of Jupiter, is so close to the star that it completes a full orbit every 4.6 Earth days Page ...
... • Two planets are several times more massive than Jupiter • The third planet, mass 75% that of Jupiter, is so close to the star that it completes a full orbit every 4.6 Earth days Page ...
The Main Point Comets are
... • The activity appears to be confined to isolated jets on the nucleus • Comet nuclei are very dark, typically reflecting < 4% of the incident sunlight (as dark as a charcoal briquet) • Comet nuclei have very low density (0.1 to 0.25 g/cm3), and thus appear to be mostly made of loosely packed (porous ...
... • The activity appears to be confined to isolated jets on the nucleus • Comet nuclei are very dark, typically reflecting < 4% of the incident sunlight (as dark as a charcoal briquet) • Comet nuclei have very low density (0.1 to 0.25 g/cm3), and thus appear to be mostly made of loosely packed (porous ...
Day and Night Sky - Georgia Standards
... Check with your media specialist for DVD’s or videos owned by the school. The Sun and Moon –WHAT’S HOT and WHAT’S NOT 3-5 days– Build Knowledge A. Gather students and begin to pose the following questions: Why can we see the sun? Why can't we see the other stars when it's daytime? Why is the sun so ...
... Check with your media specialist for DVD’s or videos owned by the school. The Sun and Moon –WHAT’S HOT and WHAT’S NOT 3-5 days– Build Knowledge A. Gather students and begin to pose the following questions: Why can we see the sun? Why can't we see the other stars when it's daytime? Why is the sun so ...
Study Guide for Astronomy 10A Prologue What is the purpose of
... Chapter 9: Venus & Mars How does Venus resemble the Earth – how is it different? Does Venus have a strong magnetic field (like Earth’s)? What are Venus’ diameter, mass and density? What is the average temperature of Venus? What is the surface pressure of Venus’ atmosphere? What are the two most comm ...
... Chapter 9: Venus & Mars How does Venus resemble the Earth – how is it different? Does Venus have a strong magnetic field (like Earth’s)? What are Venus’ diameter, mass and density? What is the average temperature of Venus? What is the surface pressure of Venus’ atmosphere? What are the two most comm ...
Problem set 1 solution
... Similar calculations for a mV = 21 star give F = 1.2 × 10−14 erg cm−2 s−1 and Fλ = 1.4 × 10−16 erg cm−2 s−1 nm−1 . (b) Photon counts We make the approximation that all photons in the V band have the energy corresponding to the central wavelength of 550nm: Eγ = hc/(550nm) = 3.6 × 10−12 erg. (Note: To ...
... Similar calculations for a mV = 21 star give F = 1.2 × 10−14 erg cm−2 s−1 and Fλ = 1.4 × 10−16 erg cm−2 s−1 nm−1 . (b) Photon counts We make the approximation that all photons in the V band have the energy corresponding to the central wavelength of 550nm: Eγ = hc/(550nm) = 3.6 × 10−12 erg. (Note: To ...
Planets Orbiting the Sun and Other Stars - Beck-Shop
... The Solar System is certainly the one system we know in detail and it was expected, before other systems had been found, that it would ultimately be able to act as a natural standard of comparison for exo-systems orbiting other stars. ...
... The Solar System is certainly the one system we know in detail and it was expected, before other systems had been found, that it would ultimately be able to act as a natural standard of comparison for exo-systems orbiting other stars. ...
Pluto and the Galactic Center
... Pluto is (on average) about forty times more distant from the Sun than the Earth is from the Sun. However, its elliptical orbit around the Sun is very eccentric. It is so strongly eccentric that at its closest approach to the Sun (perihelion) it is just under 30 astronomical units away, and when it ...
... Pluto is (on average) about forty times more distant from the Sun than the Earth is from the Sun. However, its elliptical orbit around the Sun is very eccentric. It is so strongly eccentric that at its closest approach to the Sun (perihelion) it is just under 30 astronomical units away, and when it ...
Space and Technology
... • Called gas giants because they are mostly made of _________, _________, and other gases. hydrogen helium Many moons and _____ rings These planets have _________ • _____ Jupiter - powerful lightning storms - ___________ Great Red Spot Saturn - thousands of rings of ice, rock and dust • ______ • ___ ...
... • Called gas giants because they are mostly made of _________, _________, and other gases. hydrogen helium Many moons and _____ rings These planets have _________ • _____ Jupiter - powerful lightning storms - ___________ Great Red Spot Saturn - thousands of rings of ice, rock and dust • ______ • ___ ...
Our Place In Space
... Our Place In Space Table of Contents Crossword Puzzle and Clues ........................................................................................................ 1 ...
... Our Place In Space Table of Contents Crossword Puzzle and Clues ........................................................................................................ 1 ...
NJIT Physics 320: Astronomy and Astrophysics
... On September 1st, 1859, the astronomer R. C. Carrington was engaged in his daily monitoring of sunspots, when he noticed two rapidly brightening patches of light near the middle of a sunspot group he was studying. NJIT Center for Solar–Terrestrial Research ...
... On September 1st, 1859, the astronomer R. C. Carrington was engaged in his daily monitoring of sunspots, when he noticed two rapidly brightening patches of light near the middle of a sunspot group he was studying. NJIT Center for Solar–Terrestrial Research ...
second sun - royal device
... MEETS the “beyond 7 billions miles” (12.6 billions Km). They where only 2.8 billions miles wrong. Not much of course A.U distance ...
... MEETS the “beyond 7 billions miles” (12.6 billions Km). They where only 2.8 billions miles wrong. Not much of course A.U distance ...
Solar flare
... As seen in figure 7, the soft X-ray emission (<10 keV) possesses a pre-flare phase for minutes before flare onset, because of an enhanced thermal emission from the coronal plasma. Also, for 10-100 seconds at the start of the flare, an impulsive phase is sometimes, as indicated by the appearance of t ...
... As seen in figure 7, the soft X-ray emission (<10 keV) possesses a pre-flare phase for minutes before flare onset, because of an enhanced thermal emission from the coronal plasma. Also, for 10-100 seconds at the start of the flare, an impulsive phase is sometimes, as indicated by the appearance of t ...
Anatomy of the Sun
... Three types of spectra • The first spectrum that we looked at was the absorption spectrum: the result of passing light through a gas which absorbs some of it. • The second spectrum was the continuous spectrum, the shape of which can indicate temperature. • The third type of spectrum used in astrono ...
... Three types of spectra • The first spectrum that we looked at was the absorption spectrum: the result of passing light through a gas which absorbs some of it. • The second spectrum was the continuous spectrum, the shape of which can indicate temperature. • The third type of spectrum used in astrono ...
Anatomy of the Sun - Lincoln-Sudbury Regional High School
... Three types of spectra • The first spectrum that we looked at was the absorption spectrum: the result of passing light through a gas which absorbs some of it. • The second spectrum was the continuous spectrum, the shape of which can indicate temperature. • The third type of spectrum used in astrono ...
... Three types of spectra • The first spectrum that we looked at was the absorption spectrum: the result of passing light through a gas which absorbs some of it. • The second spectrum was the continuous spectrum, the shape of which can indicate temperature. • The third type of spectrum used in astrono ...
So, our cosmic address is
... Light travels at 186,291 miles per second! It takes light 8½ minutes to travel from the Sun to Earth. That’s a distance of 1 AU or 93,000,000 miles. 12 light year long jet emanating from a newborn star ...
... Light travels at 186,291 miles per second! It takes light 8½ minutes to travel from the Sun to Earth. That’s a distance of 1 AU or 93,000,000 miles. 12 light year long jet emanating from a newborn star ...
Volume 1 (Issue 6), June 2012
... Fate of Sun as a Red Giant: Unlike the other heavier stars, the Sun does not possess enough mass to explode as a supernova. The sun has passed about half of its life period. In about 5 billion years, it will enter a red giant phase. Its outer layers will expand as the hydrogen fuel at the core is ex ...
... Fate of Sun as a Red Giant: Unlike the other heavier stars, the Sun does not possess enough mass to explode as a supernova. The sun has passed about half of its life period. In about 5 billion years, it will enter a red giant phase. Its outer layers will expand as the hydrogen fuel at the core is ex ...
James`s 5-Page Final Exam Review
... ii. When is this equation applicable? b. Intermediate Kepler’s Third Law: i. What units do you use for P and a? ii. When is this equation applicable? c. Newton’s Version of Kepler’s Third Law: i. What units do you use for P and a? ii. When is this equation applicable? 34) Examples with Kepler’s Thir ...
... ii. When is this equation applicable? b. Intermediate Kepler’s Third Law: i. What units do you use for P and a? ii. When is this equation applicable? c. Newton’s Version of Kepler’s Third Law: i. What units do you use for P and a? ii. When is this equation applicable? 34) Examples with Kepler’s Thir ...
Teachers` Manual - Amundsen High School
... Solar System formed from collapse of Interstellar cloud Cloud was mostly H and He, about few % heavier elements H and He gaseous, heavy elements in form of tiny solid dust grains rich in iron, silicates, carbon compound, water. Cloud was slowly spinning Collapse result of gravity As clou ...
... Solar System formed from collapse of Interstellar cloud Cloud was mostly H and He, about few % heavier elements H and He gaseous, heavy elements in form of tiny solid dust grains rich in iron, silicates, carbon compound, water. Cloud was slowly spinning Collapse result of gravity As clou ...
Introduction to space – Celestial sphere
... cut by a plane tangent to the Earth at your feet. Everything in the sky above the horizon is visible, while everything below it is not. At any one time we see no more than half of this sphere, but we will refer loosely to the imaginary half-sphere over our heads as just the celestial sphere (see Fig ...
... cut by a plane tangent to the Earth at your feet. Everything in the sky above the horizon is visible, while everything below it is not. At any one time we see no more than half of this sphere, but we will refer loosely to the imaginary half-sphere over our heads as just the celestial sphere (see Fig ...
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.