Second Semester Study Guide
... but the Earth's is much less than 1% carbon dioxide? A. Earth's rocks had much less carbon and oxygen in them. B. Venus and Mars, being smaller than Earth, can't retain the same mixture of gases as Earth. C. Each planet has a significantly different surface temperature. D. Plant life has existed on ...
... but the Earth's is much less than 1% carbon dioxide? A. Earth's rocks had much less carbon and oxygen in them. B. Venus and Mars, being smaller than Earth, can't retain the same mixture of gases as Earth. C. Each planet has a significantly different surface temperature. D. Plant life has existed on ...
THE SUN AND THE MOON
... The Moon has no atmosphere and no magnetic field. Its surface is subjected to the harsh solar winds of the Sun and more direct impacts from meteors than Earth. As a result, the surface of the Moon is heavily cratered (Figure 3). The Moon takes 27 days to rotate about its axis. This is the same amoun ...
... The Moon has no atmosphere and no magnetic field. Its surface is subjected to the harsh solar winds of the Sun and more direct impacts from meteors than Earth. As a result, the surface of the Moon is heavily cratered (Figure 3). The Moon takes 27 days to rotate about its axis. This is the same amoun ...
sc engl 3 mini The Sun test
... (1) The sun is a bright star made of hot gases that burn all the time. The main gas that makes up the sun is called hydrogen. ...
... (1) The sun is a bright star made of hot gases that burn all the time. The main gas that makes up the sun is called hydrogen. ...
PHYS101 Sec 001 Hour Exam No. 3 Preview 2 Page: 1 1 It
... b. small because they are not very bright. c. small because they do not last very long before they turn into stars. d. large because they are much brighter than ordinary stars. 45 Far from the Sun, a comet is basically a a. dirty lump of frozen gas and ice. b. cloud of individual dust particles. c. ...
... b. small because they are not very bright. c. small because they do not last very long before they turn into stars. d. large because they are much brighter than ordinary stars. 45 Far from the Sun, a comet is basically a a. dirty lump of frozen gas and ice. b. cloud of individual dust particles. c. ...
How common are habitable planets?
... – about one hundredth of one percent – in the star's candidate planets orbiting them. Only 10 of these brightness. From among the 150,000 stars were Earth-size, that is, one to two times the photographed every 30 minutes for four years, diameter of Earth and orbiting their star at a NASA's Kepler te ...
... – about one hundredth of one percent – in the star's candidate planets orbiting them. Only 10 of these brightness. From among the 150,000 stars were Earth-size, that is, one to two times the photographed every 30 minutes for four years, diameter of Earth and orbiting their star at a NASA's Kepler te ...
1 Sun Stars Planets. Problem Sheet I
... 2 × 1026 W, ie. half that of the Sun, and a planet orbiting with a radius of 85 ×106 km. Use the equation derived above, and assuming the planet’s albedo is 0.25, the calculate the surface temperature of the planet. Is an albedo of 0.25 a reasonable assumption? The presence of what material is thoug ...
... 2 × 1026 W, ie. half that of the Sun, and a planet orbiting with a radius of 85 ×106 km. Use the equation derived above, and assuming the planet’s albedo is 0.25, the calculate the surface temperature of the planet. Is an albedo of 0.25 a reasonable assumption? The presence of what material is thoug ...
Why Pluto Is Not a Planet Anymore or How Astronomical Objects Get
... defines a minor planet? The IAU has rules and definitions for this too. A minor planet is an astronomical object in direct orbit around the Sun that is neither a dominant planet nor originally classified as a comet. The term minor planet has been used since the 19th century to describe these objects ...
... defines a minor planet? The IAU has rules and definitions for this too. A minor planet is an astronomical object in direct orbit around the Sun that is neither a dominant planet nor originally classified as a comet. The term minor planet has been used since the 19th century to describe these objects ...
The Sun
... temperatures. You also need to discuss how the sun makes energy (fusion), how/when sunspots form, and the solar wind and what it does to Earth. ...
... temperatures. You also need to discuss how the sun makes energy (fusion), how/when sunspots form, and the solar wind and what it does to Earth. ...
ppt
... Current solar system description • Newton: – The Sun and the other bodies orbit around a common center of mass – The Sun is so massive that it is very close to the center of mass and moves very little – Orbits are elliptical, but very slightly so ...
... Current solar system description • Newton: – The Sun and the other bodies orbit around a common center of mass – The Sun is so massive that it is very close to the center of mass and moves very little – Orbits are elliptical, but very slightly so ...
Solutions Assignment #3
... Spica is the most massive of the main-sequence stars listed because it has the hottest spectral type of the main-sequence stars; thus, it appears higher on the main sequence of an H-R diagram, where masses are larger. l. Alpha Centauri A, with spectral type G2, is the coolest and therefore the longe ...
... Spica is the most massive of the main-sequence stars listed because it has the hottest spectral type of the main-sequence stars; thus, it appears higher on the main sequence of an H-R diagram, where masses are larger. l. Alpha Centauri A, with spectral type G2, is the coolest and therefore the longe ...
PTYS/ASTR 206
... satellites, in our Solar System be defined into three distinct categories in the following way: (1) A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) ...
... satellites, in our Solar System be defined into three distinct categories in the following way: (1) A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) ...
Document
... As.6.3 Communicate scientific ideas about the way stars, over their life cycle, produce elements. [Clarification Statement: Emphasis is on the way nucleosynthesis, and therefore the different elements created, varies as a function of the mass of a star and the stage of its lifetime. Assessment Bound ...
... As.6.3 Communicate scientific ideas about the way stars, over their life cycle, produce elements. [Clarification Statement: Emphasis is on the way nucleosynthesis, and therefore the different elements created, varies as a function of the mass of a star and the stage of its lifetime. Assessment Bound ...
Lecture7_2014_v2
... – Solar nebula spun faster as it contracted because of conservation of angular momentum. – Collisions between gas particles then caused the nebula to flatten into a disk. • Why are there two major types of planets? – Only rock and metals condensed inside the frost ...
... – Solar nebula spun faster as it contracted because of conservation of angular momentum. – Collisions between gas particles then caused the nebula to flatten into a disk. • Why are there two major types of planets? – Only rock and metals condensed inside the frost ...
Volume 1 (Issue 7), July 2012
... Stars in their red giant phase start to burn helium by triple alpha nuclear process and convert helium into carbon and oxygen. The core of star shrinks further due to gravitational force when helium fuel is exhausted. Those stars which do not have enough mass to fuse carbon and oxygen end their live ...
... Stars in their red giant phase start to burn helium by triple alpha nuclear process and convert helium into carbon and oxygen. The core of star shrinks further due to gravitational force when helium fuel is exhausted. Those stars which do not have enough mass to fuse carbon and oxygen end their live ...
PSC100 Summary Chapters 10 to Chapter 20
... mean any of the elements above helium in the periodic table. The early universe was composed primarily of hydrogen and helium gas with only very small amounts of the heavier elements. Population II stars have this same chemical composition with only about 0.1% of the heavy metals. Population I stars ...
... mean any of the elements above helium in the periodic table. The early universe was composed primarily of hydrogen and helium gas with only very small amounts of the heavier elements. Population II stars have this same chemical composition with only about 0.1% of the heavy metals. Population I stars ...
File
... The shape of the Milky Way Galaxy is a huge disk whose diameter is100,000 light years. In the model, we reduced the 100,000 light years into 30cm (12in). The distance between the Sun and the Earth (1 AU (Astronomical Unit) = 150,000,000 km (94,000,000 miles)) is 0.000000005 cm (0.000000002 in), so b ...
... The shape of the Milky Way Galaxy is a huge disk whose diameter is100,000 light years. In the model, we reduced the 100,000 light years into 30cm (12in). The distance between the Sun and the Earth (1 AU (Astronomical Unit) = 150,000,000 km (94,000,000 miles)) is 0.000000005 cm (0.000000002 in), so b ...
exo planets
... Red dwarfs are known as M class stars. They are smaller, less bright and typically much cooler than our Sun, which is a “G” class star. Kepler 186 is one of the hotter red dwarfs known. 186f is about the same distance from its star as Mercury is from our Sun. Because Kepler 186 is much smaller than ...
... Red dwarfs are known as M class stars. They are smaller, less bright and typically much cooler than our Sun, which is a “G” class star. Kepler 186 is one of the hotter red dwarfs known. 186f is about the same distance from its star as Mercury is from our Sun. Because Kepler 186 is much smaller than ...
Circumstellar Disks: the Formation and Evolution of
... generated by mutual collisions within the Themis, Koronis, and Eos families. ...
... generated by mutual collisions within the Themis, Koronis, and Eos families. ...
15.6 Planets Beyond the Solar System
... center, residual gas and dust remain in a rotating disk. Dust particles act as accretion nuclei to form the planets, by sticky collisions with other dust particles. ...
... center, residual gas and dust remain in a rotating disk. Dust particles act as accretion nuclei to form the planets, by sticky collisions with other dust particles. ...
TENTH GRADE SCOPE AND SEQUENCE DRAFT
... Night and day are caused by the rotation of the earth on its axis. The earth revolves around the sun once a year. The tilt of the earth results in seasonal changes. The sun gives us energy in the form of light and heat. The position of the sun in the sky appears to change over the course o ...
... Night and day are caused by the rotation of the earth on its axis. The earth revolves around the sun once a year. The tilt of the earth results in seasonal changes. The sun gives us energy in the form of light and heat. The position of the sun in the sky appears to change over the course o ...
IV. ASTRONOMY: THE SUN and the MOON
... It emits X-rays. ii) Spectra show that many of the atoms are highly ionized, as would be the case if they were experiencing high-speed collisions. iii) The heating mechanism is probably a combination of mechanical heating (as with the chromosphere) and release of energy stored in magnetic fields. iv ...
... It emits X-rays. ii) Spectra show that many of the atoms are highly ionized, as would be the case if they were experiencing high-speed collisions. iii) The heating mechanism is probably a combination of mechanical heating (as with the chromosphere) and release of energy stored in magnetic fields. iv ...
Sample file
... events transfers the energy to the upper layers of the Sun. The loss of energy in these transfers causes a gradient of heat as one travels away from the core but the average temperature of this layer is 4 million Kelvin. Convective Zone: The convective zone extends from the radiative zone through th ...
... events transfers the energy to the upper layers of the Sun. The loss of energy in these transfers causes a gradient of heat as one travels away from the core but the average temperature of this layer is 4 million Kelvin. Convective Zone: The convective zone extends from the radiative zone through th ...
Comets
... The Oort Cloud is much farther away, up to 50,000 AU from the Sun. There are likely billions of comets in the Oort Cloud, but they are too small and too far away for us to detect directly. The Oort Cloud is the source of non-periodic comets. Non-periodic comets are comets that swing around the Sun o ...
... The Oort Cloud is much farther away, up to 50,000 AU from the Sun. There are likely billions of comets in the Oort Cloud, but they are too small and too far away for us to detect directly. The Oort Cloud is the source of non-periodic comets. Non-periodic comets are comets that swing around the Sun o ...
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.