Renaissance Astronomy - Faculty Web Sites at the University of
... positions over more than 20 years. ...
... positions over more than 20 years. ...
Study Guide #3 Answer Key
... The Galaxy consists of a bar-shaped core region surrounded by a disk of gas, dust and stars forming four distinct arm structures spiralling outward in a logarithmic spiral shape (see Spiral arms). The mass distribution within the Galaxy closely resembles the Sbc Hubble classification, which is a spi ...
... The Galaxy consists of a bar-shaped core region surrounded by a disk of gas, dust and stars forming four distinct arm structures spiralling outward in a logarithmic spiral shape (see Spiral arms). The mass distribution within the Galaxy closely resembles the Sbc Hubble classification, which is a spi ...
planet
... • "A planet is a celestial body that (a) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (b) is in orbit around a star, and is neither a star nor a satellite of a planet." What would then qualify as a plane ...
... • "A planet is a celestial body that (a) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (b) is in orbit around a star, and is neither a star nor a satellite of a planet." What would then qualify as a plane ...
Printer Friendly Version
... Pre Test on the Seasons (This is an example of instructions you will see on your test.) sheet. Write your form number and exam number after your name." Part 1 Multiple Choice 1. The two most important things which determine the amount of energy falling on an object in one day are: A. The changing st ...
... Pre Test on the Seasons (This is an example of instructions you will see on your test.) sheet. Write your form number and exam number after your name." Part 1 Multiple Choice 1. The two most important things which determine the amount of energy falling on an object in one day are: A. The changing st ...
Solar System Contents
... have quite elliptical orbits. Most dwarf planets & asteroids also revolve prograde. Comets have highly elliptical orbits; often highly inclined from the planetary plane. ...
... have quite elliptical orbits. Most dwarf planets & asteroids also revolve prograde. Comets have highly elliptical orbits; often highly inclined from the planetary plane. ...
Planetary Science - Columbia Falls Junior High
... 1) Find the time between sunrise and sunset. 2) Divide that time in half. 3) Add that time to the ...
... 1) Find the time between sunrise and sunset. 2) Divide that time in half. 3) Add that time to the ...
THE SOLAR SYSTEM
... Ask students to share what they know about the planets in our solar system. Explain that this fun activity will help them understand that planets are round, they come in different sizes, they are made of different materials, and they spin at different speeds. Hold up a small object (not the smallest ...
... Ask students to share what they know about the planets in our solar system. Explain that this fun activity will help them understand that planets are round, they come in different sizes, they are made of different materials, and they spin at different speeds. Hold up a small object (not the smallest ...
9.1: THE SUN IN BULK PHYS 1401: Descriptive Astronomy Notes
... ✦ So, skipping the intermediate steps, at its core, the sun fuses hydrogen into helium ✦ 600 million tons of mass per second are converted ✦ At that rate, the sun will only last another 5 billion years Observations of Solar Neutrinos ✦ Neutrinos are magic! ✦ No they aren't. But they are evidence of ...
... ✦ So, skipping the intermediate steps, at its core, the sun fuses hydrogen into helium ✦ 600 million tons of mass per second are converted ✦ At that rate, the sun will only last another 5 billion years Observations of Solar Neutrinos ✦ Neutrinos are magic! ✦ No they aren't. But they are evidence of ...
The Sun The Sun
... How Big Is the Sun? The Sun is about 1.4 million kilometers (865,000 mi.) wide. If the Sun were hollow, more than a million Earths could fit inside it. How Far Away Is the Sun? The Sun is about 149,680,000 kilometers (93,026,724 mi.) from Earth. The Sun is so far way that its light takes about 8 min ...
... How Big Is the Sun? The Sun is about 1.4 million kilometers (865,000 mi.) wide. If the Sun were hollow, more than a million Earths could fit inside it. How Far Away Is the Sun? The Sun is about 149,680,000 kilometers (93,026,724 mi.) from Earth. The Sun is so far way that its light takes about 8 min ...
Astronomy PowerPoint - Effingham County Schools
... and ice – from out in space that get pulled in by Earth’s gravity and fall through the atmosphere and sometimes land on earth’s surface. Many meteors are from comet pieces. • Meteors are sometimes called “shooting stars” but they are not stars. They glow in the sky like stars because when they hit t ...
... and ice – from out in space that get pulled in by Earth’s gravity and fall through the atmosphere and sometimes land on earth’s surface. Many meteors are from comet pieces. • Meteors are sometimes called “shooting stars” but they are not stars. They glow in the sky like stars because when they hit t ...
Ellipses, Parallax, and Retrograde Motion – Study Guide
... shift in the sky as Earth orbits Sun (parallax) OR planets do NOT really change course in their orbit around the Sun (retrograde motion). 4. Draw or describe a shape with an eccentricity of 0 (zero), 1 (one), 0.2 and 0.9. Include where the foci (or center) are. A perfect circle has an eccentricity o ...
... shift in the sky as Earth orbits Sun (parallax) OR planets do NOT really change course in their orbit around the Sun (retrograde motion). 4. Draw or describe a shape with an eccentricity of 0 (zero), 1 (one), 0.2 and 0.9. Include where the foci (or center) are. A perfect circle has an eccentricity o ...
Astronomy Today 7th Edition Chaisson/McMillan
... Kuiper belt objects have been detected from Earth; a few are as large as, or larger than, Pluto, and their composition appears similar. About 1/3 of all Kuiper belt objects (including Pluto) have orbits that are in a 3:2 resonance with Neptune; such objects are called “plutinos.” ...
... Kuiper belt objects have been detected from Earth; a few are as large as, or larger than, Pluto, and their composition appears similar. About 1/3 of all Kuiper belt objects (including Pluto) have orbits that are in a 3:2 resonance with Neptune; such objects are called “plutinos.” ...
Some space objects are visible to the human eye.
... By contrast, the Moon moves across the star background a distance equal to its width every hour as it orbits Earth. The Moon is our closest neighbor. The planets are farther away, but you can see their gradual movements among the constellations over a period of weeks or months. ...
... By contrast, the Moon moves across the star background a distance equal to its width every hour as it orbits Earth. The Moon is our closest neighbor. The planets are farther away, but you can see their gradual movements among the constellations over a period of weeks or months. ...
Test #3
... b. the distance to the binary and its radial velocity. c. the semi major axis and period of the orbit. d. the radial velocities of the two stars. 15. Blue stars are _____ than red stars a. hotter b. cooler c. larger d. smaller 16. About how old is our Sun? a. 10 million years b. 5 billion years c. 1 ...
... b. the distance to the binary and its radial velocity. c. the semi major axis and period of the orbit. d. the radial velocities of the two stars. 15. Blue stars are _____ than red stars a. hotter b. cooler c. larger d. smaller 16. About how old is our Sun? a. 10 million years b. 5 billion years c. 1 ...
Chapter 2
... Planetary Geology. Define the term planetary geology in everyday terms. Why do we believe that differences between planetary surfaces can be traced to fundamental properties (size, distance from the Sun, rotation) instead of random occurrences that only affected individual planets? ...
... Planetary Geology. Define the term planetary geology in everyday terms. Why do we believe that differences between planetary surfaces can be traced to fundamental properties (size, distance from the Sun, rotation) instead of random occurrences that only affected individual planets? ...
Our Fun Sun - Environmental Science Institute
... body has. A table is given with the known gravitational force for each planet, as well as its diameter. Consider the planet Uranus. Uranus has a larger diameter than Earth, but still has a much smaller gravitational force factor relative to Earth. Uranus has less mass since it is a gas planet. This ...
... body has. A table is given with the known gravitational force for each planet, as well as its diameter. Consider the planet Uranus. Uranus has a larger diameter than Earth, but still has a much smaller gravitational force factor relative to Earth. Uranus has less mass since it is a gas planet. This ...
Stellar Evolution and our Sun (Song “The Sun” from “Severe Tire
... below 1000, lower density silicates carbonaceous silicates dirty ice Accretion All these particles slowly become planets collide_and_stick (nearly parallel motions) up to km_sized planetesimals, then in about 10000 years, 500_ 1000km after that, smaller bodies fragment, larger bodies eat them denser ...
... below 1000, lower density silicates carbonaceous silicates dirty ice Accretion All these particles slowly become planets collide_and_stick (nearly parallel motions) up to km_sized planetesimals, then in about 10000 years, 500_ 1000km after that, smaller bodies fragment, larger bodies eat them denser ...
Astronomy Content from Frameworks
... The Moon changes in position in the sky each day. It also changes in appearance from a full Moon to a thin crescent. These changes are called phases. The Moon's light comes from the Sun, and the sunlight is reflected off the Moon's surface. The phase of the Moon that we see depends on the orientatio ...
... The Moon changes in position in the sky each day. It also changes in appearance from a full Moon to a thin crescent. These changes are called phases. The Moon's light comes from the Sun, and the sunlight is reflected off the Moon's surface. The phase of the Moon that we see depends on the orientatio ...
Chapter 12 (Sun)
... 4. Consider the sun's continuous emission as that of a blackbody radiator. Then one way to infer the sun's surface temperature is to measure the: A. longest wavelength the sun emits. B. shortest wavelength the sun emits. C. peak wavelength the sun emits. D. continuous spectrum after it passes throug ...
... 4. Consider the sun's continuous emission as that of a blackbody radiator. Then one way to infer the sun's surface temperature is to measure the: A. longest wavelength the sun emits. B. shortest wavelength the sun emits. C. peak wavelength the sun emits. D. continuous spectrum after it passes throug ...
What is Pluto?
... What is Pluto? • Strange object; located far out from the Sun with gas giants but small size and very elliptical and highly inclined orbit • Pluto is a mixture of ices and rocks • composition similar to satellites of giant planets • Could be captured Kuiper Belt Object (e.g. comet)? ...
... What is Pluto? • Strange object; located far out from the Sun with gas giants but small size and very elliptical and highly inclined orbit • Pluto is a mixture of ices and rocks • composition similar to satellites of giant planets • Could be captured Kuiper Belt Object (e.g. comet)? ...
1 - Colorado Center for Astrodynamics Research
... saving millions of years in trip time. Both of these missions may seem unrealistic because the amount of time required is much beyond our lifetime. However, it is important to look into the future and consider that this spacecraft may be discovered by some other life form orbiting this star. ...
... saving millions of years in trip time. Both of these missions may seem unrealistic because the amount of time required is much beyond our lifetime. However, it is important to look into the future and consider that this spacecraft may be discovered by some other life form orbiting this star. ...
KEPLER`S LAWS OF PLANETARY MOTION NAME: Date: Purpose
... Purpose: To understand Kepler’s Laws describing the movements of planets in the solar system. Background: In the 1500s, Nicolaus Copernicus challenged the GEOCENTRIC (earth-centered) model of the solar system that had been promoted and accepted by philosophers and astronomers such as Aristotle and P ...
... Purpose: To understand Kepler’s Laws describing the movements of planets in the solar system. Background: In the 1500s, Nicolaus Copernicus challenged the GEOCENTRIC (earth-centered) model of the solar system that had been promoted and accepted by philosophers and astronomers such as Aristotle and P ...
PDF 630 kB - Prague Relativistic Astrophysics
... considering that 9 million long-period comets fits the NEO definition (have perihelion distance lower than 1.3 AU) and thus 99.99 % of NEOs come from the Oort cloud. G. Gronchi presented interesting talk about the uncertainty of a minimum orbital intersection distance (MOID) and showed that they found ...
... considering that 9 million long-period comets fits the NEO definition (have perihelion distance lower than 1.3 AU) and thus 99.99 % of NEOs come from the Oort cloud. G. Gronchi presented interesting talk about the uncertainty of a minimum orbital intersection distance (MOID) and showed that they found ...
EARTH IN THE UNIVERSE TOPIC 3 2011-2012
... Evolution of the Solar System. Our Solar system started approximately 5 billion years ago. At first there was a large dust cloud. Gravity caused the cloud to condense into one or more mass concentrations. The planets, asteroids, and moons with solid surfaces bear witness to impact events in the ...
... Evolution of the Solar System. Our Solar system started approximately 5 billion years ago. At first there was a large dust cloud. Gravity caused the cloud to condense into one or more mass concentrations. The planets, asteroids, and moons with solid surfaces bear witness to impact events in the ...
Science 09 Space Review 1. Know what a light year is
... b) Our sun is in adulthood http://sunshine.chpc.utah.edu/Labs/StarLife/starlife_main.html c) A red giant fuses helium into carbon and this requires higher temperatures than fusing hydrogen into helium which is what our sun does d) Once a star runs out of fuel for fusion, the thermal pressure outward ...
... b) Our sun is in adulthood http://sunshine.chpc.utah.edu/Labs/StarLife/starlife_main.html c) A red giant fuses helium into carbon and this requires higher temperatures than fusing hydrogen into helium which is what our sun does d) Once a star runs out of fuel for fusion, the thermal pressure outward ...
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.