Our Solar System
... except when they are near the sun’s heat. Comets become visible when ice changed into gas by the sun’s heat. The gas carries dust, and this dust forms the comet’s head and tail. Meteor showers sometimes occur when the Earth passes through a comet’s orbit. ...
... except when they are near the sun’s heat. Comets become visible when ice changed into gas by the sun’s heat. The gas carries dust, and this dust forms the comet’s head and tail. Meteor showers sometimes occur when the Earth passes through a comet’s orbit. ...
The Solar System: Unit 3 Review/Study Guide
... body that orbits the sun and is round because of its own gravity, but it does not have the mass to have cleared other bodies out of its orbit around the sun. There are five known dwarf planets. One named Ceres is located between Mars and Jupiter in the asteroid belt. The other four (Pluto, Haumea, M ...
... body that orbits the sun and is round because of its own gravity, but it does not have the mass to have cleared other bodies out of its orbit around the sun. There are five known dwarf planets. One named Ceres is located between Mars and Jupiter in the asteroid belt. The other four (Pluto, Haumea, M ...
Astronomy Review - Cockeysville Middle
... The outer planets have lower densities (as you would expect since they are gas). There is no pattern of rotational periods (Day Length). The outer planets all have rings and multiple moons. ...
... The outer planets have lower densities (as you would expect since they are gas). There is no pattern of rotational periods (Day Length). The outer planets all have rings and multiple moons. ...
tail can extend millions of kilometers into space
... large asteroid strike was in 1908 in Siberia when a 60 meter stony body exploded in the atmosphere causing a blast that knocked over trees in an 800 mile squared area from the blast centre. Small asteroid fragments were found embedded in trees around the ...
... large asteroid strike was in 1908 in Siberia when a 60 meter stony body exploded in the atmosphere causing a blast that knocked over trees in an 800 mile squared area from the blast centre. Small asteroid fragments were found embedded in trees around the ...
Lecture11
... dissociates; this absorbs some of the energy supporting the protostar, so the core begins to collapse further, until it becomes ~30% larger than the present Solar radius (but still much less massive). The protostar continues to accrete material from the infalling cloud. ...
... dissociates; this absorbs some of the energy supporting the protostar, so the core begins to collapse further, until it becomes ~30% larger than the present Solar radius (but still much less massive). The protostar continues to accrete material from the infalling cloud. ...
Solar System, Galaxy, and Universe (ES) V.4
... Explain how stars and planetary systems form and how stars produce energy. Key concepts: Processes of formation—coalescence from clouds of dust and gases by gravity; explosions of stars producing heavy elements; hydrogen, helium. Production of energy—fusion, radiation. Planetary systems may form dur ...
... Explain how stars and planetary systems form and how stars produce energy. Key concepts: Processes of formation—coalescence from clouds of dust and gases by gravity; explosions of stars producing heavy elements; hydrogen, helium. Production of energy—fusion, radiation. Planetary systems may form dur ...
Planet formation
... • The Gases gather around a large asteroid in space by gravity and slowly start to grow more dense. • The rock becomes the center of the planet as the gases keep surrounding it. • As the planet grows bigger, its gravitational pull increases, dragging in more gasses. • Since Gaseous planets are farth ...
... • The Gases gather around a large asteroid in space by gravity and slowly start to grow more dense. • The rock becomes the center of the planet as the gases keep surrounding it. • As the planet grows bigger, its gravitational pull increases, dragging in more gasses. • Since Gaseous planets are farth ...
Document
... • Rock & Metals form where T < 1300 K • Carbon grains & ices where T(gas) < 300 K • Inner planets and asteroids: Rocky and metallic • Snow line • Outer Jovian systems: Gaseous giants, carbon ices • Dust grains and ices collide, accrete, and eventually grow bigger gravitationally into planetesimals b ...
... • Rock & Metals form where T < 1300 K • Carbon grains & ices where T(gas) < 300 K • Inner planets and asteroids: Rocky and metallic • Snow line • Outer Jovian systems: Gaseous giants, carbon ices • Dust grains and ices collide, accrete, and eventually grow bigger gravitationally into planetesimals b ...
Chapter 1: Solar System
... cloud of dust and gas. The tail contains dust and gas that trail the head of the comet as it approaches the sun. c. How does a comet’s appearance change as it approaches the sun? Why do these changes occur? Some gas and dust are released, forming a coma and two tails; because of the energy in sunlig ...
... cloud of dust and gas. The tail contains dust and gas that trail the head of the comet as it approaches the sun. c. How does a comet’s appearance change as it approaches the sun? Why do these changes occur? Some gas and dust are released, forming a coma and two tails; because of the energy in sunlig ...
Survey of the Solar System - USU Department of Physics
... Spectroscopic Stellar Wobble: the positions of spectral lines (both absorption & emission) changes periodically. This can be translated into a velocity of the star, which then tells us that the star is rotating around it’s system’s center-of-mass ...
... Spectroscopic Stellar Wobble: the positions of spectral lines (both absorption & emission) changes periodically. This can be translated into a velocity of the star, which then tells us that the star is rotating around it’s system’s center-of-mass ...
Question 1 (7-5 thru 7-7 PPT Questions)
... (i) Asteroids, comets, and meteoroids populate the solar system along with the planets, and each category of objects has its own pattern of motion and location. (j) The planets have more total angular momentum than does the Sun, even though the Sun has most of the mass. (k) Recent evidence indicate ...
... (i) Asteroids, comets, and meteoroids populate the solar system along with the planets, and each category of objects has its own pattern of motion and location. (j) The planets have more total angular momentum than does the Sun, even though the Sun has most of the mass. (k) Recent evidence indicate ...
Document
... on Earth. Some of them originally came from other planets, such as Mars. They may contain the chemical traces for life, or even fossil traces of bacteria. ...
... on Earth. Some of them originally came from other planets, such as Mars. They may contain the chemical traces for life, or even fossil traces of bacteria. ...
Some 250 years ago, the philosopher Immanuel Universal
... in this artist’s impression. The Kepler space telescope (left) could yield even more. ...
... in this artist’s impression. The Kepler space telescope (left) could yield even more. ...
15 Billion
... b. Computer models of planetary collisions create an Earth-Moon system like ours. The composition of the Moon matches the mantle. c. The age of large impact craters on the Earth match the age extinctions in the fossil record. d. In 1987, a supernova is observed creating heavy elements. e. 4.3 billio ...
... b. Computer models of planetary collisions create an Earth-Moon system like ours. The composition of the Moon matches the mantle. c. The age of large impact craters on the Earth match the age extinctions in the fossil record. d. In 1987, a supernova is observed creating heavy elements. e. 4.3 billio ...
Jim_lecture_Chapter
... • We need to preserve our environment, as Earth is the only habitable planet that we know of • Global warming is a real problem with which we will someday have to deal • There may well be other Earth-like planets around other stars. Looking for them, and looking for signs of life on them, is a scien ...
... • We need to preserve our environment, as Earth is the only habitable planet that we know of • Global warming is a real problem with which we will someday have to deal • There may well be other Earth-like planets around other stars. Looking for them, and looking for signs of life on them, is a scien ...
Are We Alone in the Universe?
... Until about 20 years ago, we only knew about 8 (9 then) planets! ✤ Now we know of nearly 2,000! Some estimates put the number of Earth-like planets in habitable zones at 20% of all stars! ✤ 400 billion stars in the Milky Way x 20% = 80 billion potentially habitable planets! Statistically, the answer ...
... Until about 20 years ago, we only knew about 8 (9 then) planets! ✤ Now we know of nearly 2,000! Some estimates put the number of Earth-like planets in habitable zones at 20% of all stars! ✤ 400 billion stars in the Milky Way x 20% = 80 billion potentially habitable planets! Statistically, the answer ...
Extra-Solar Planets
... 1) Old enough to allow time for evolution (rules out high-mass stars - 1%) 2) Need to have stable orbits (might rule out binary/multiple star systems - 50%) 3) Size of “habitable zone”: region in which a planet of the right size could have liquid water on its surface. Even so… billions of stars in t ...
... 1) Old enough to allow time for evolution (rules out high-mass stars - 1%) 2) Need to have stable orbits (might rule out binary/multiple star systems - 50%) 3) Size of “habitable zone”: region in which a planet of the right size could have liquid water on its surface. Even so… billions of stars in t ...
PSC101-lecture12
... • Among these clouds the Hubble Space Telescope observed lumps and knots that appear to be new stars and planets being formed. ...
... • Among these clouds the Hubble Space Telescope observed lumps and knots that appear to be new stars and planets being formed. ...
Origin of the Universe and of the Solar System
... expansion of the universe. The energy moved away in all directions and it was transformed into matter (by means of the theory of relativity). Simultaneously that formed the matter, was originated the space and the time. 3º Started to form subatomic particles later and the simplest atoms: hydrogen an ...
... expansion of the universe. The energy moved away in all directions and it was transformed into matter (by means of the theory of relativity). Simultaneously that formed the matter, was originated the space and the time. 3º Started to form subatomic particles later and the simplest atoms: hydrogen an ...
Unit 5: THE SOLAR SYSTEM 1.THE SOLAR SYSTEM
... 1.1. What is a planetary system? A planetary system consists of the various non-stellar objects orbiting a star such as planets, dwarf planets, moons, asteroids, meteoroids, comets, and interstellar dust. 1.2. Our Solar System The Solar System is our Planetary System. The Solar System is about five ...
... 1.1. What is a planetary system? A planetary system consists of the various non-stellar objects orbiting a star such as planets, dwarf planets, moons, asteroids, meteoroids, comets, and interstellar dust. 1.2. Our Solar System The Solar System is our Planetary System. The Solar System is about five ...
Formation of the Solar System
... • Leftover bodies from planet building in Jovian planet zone. Hence more icy than asteroids. • Oort Cloud and TNOs are sources of comets. For example, a TNO may encounter Neptune and get sent into inner Solar System, where they start to evaporate, grow a tail, and appear as comets. ...
... • Leftover bodies from planet building in Jovian planet zone. Hence more icy than asteroids. • Oort Cloud and TNOs are sources of comets. For example, a TNO may encounter Neptune and get sent into inner Solar System, where they start to evaporate, grow a tail, and appear as comets. ...
Jovian planets
... (what is life and how did it form; what conditions does life need habitable planets and extremeophiles; what about our solar system - Mars, Europa, Titan) Are there other Earthlike planets? (Spectra, detecting extrasolar planets, planet formation models, stellar lifecycles, where do elements come fr ...
... (what is life and how did it form; what conditions does life need habitable planets and extremeophiles; what about our solar system - Mars, Europa, Titan) Are there other Earthlike planets? (Spectra, detecting extrasolar planets, planet formation models, stellar lifecycles, where do elements come fr ...
Lecture #27: The Next 100 Years
... So by sometime this century we will almost certainly have a real image of a terrestrial planet….. But if we find terrestrial planets how do we detect life? This is not as easy as it might sound…. We can look for things that are common in Earth’s atmosphere like Oxygen, Methane, CO2 But Venus, Earth ...
... So by sometime this century we will almost certainly have a real image of a terrestrial planet….. But if we find terrestrial planets how do we detect life? This is not as easy as it might sound…. We can look for things that are common in Earth’s atmosphere like Oxygen, Methane, CO2 But Venus, Earth ...
