Planets
... One satellite called “the Moon”. The planet is often referred to as the Earth-Moon System, because the Earth and moon are similar in size and close to each other. The only planet known by humans to have “life” A mostly water planet ...
... One satellite called “the Moon”. The planet is often referred to as the Earth-Moon System, because the Earth and moon are similar in size and close to each other. The only planet known by humans to have “life” A mostly water planet ...
Astronomy Review HOW SCIENTISTS BELIEVE THE SOLAR
... STAGE 1: NEBULA A Nebula is a cloud of dust and gas. Nebulae are the birthplace of stars. ...
... STAGE 1: NEBULA A Nebula is a cloud of dust and gas. Nebulae are the birthplace of stars. ...
Astronomy
... revolution – the circling of one object about another, the motion of the planets around the sun and satellites (moons) around the planets satellite – a natural moon or manmade orbiter of a planet seasons – one of the four divisions of the year, spring, summer, and winter, marked by the passage of th ...
... revolution – the circling of one object about another, the motion of the planets around the sun and satellites (moons) around the planets satellite – a natural moon or manmade orbiter of a planet seasons – one of the four divisions of the year, spring, summer, and winter, marked by the passage of th ...
solar system study guide - East Hanover Township School District
... Venus – second closest planet to the sun, terrestrial planet, has many volcanoes, dense heavy atmosphere, very hot, no moons, named after the Roman goddess of love and beauty, a day on Venus (one ROTATION) is longer than Venus’s year (one REVOLUTION); hottest planet Earth - third closest planet to t ...
... Venus – second closest planet to the sun, terrestrial planet, has many volcanoes, dense heavy atmosphere, very hot, no moons, named after the Roman goddess of love and beauty, a day on Venus (one ROTATION) is longer than Venus’s year (one REVOLUTION); hottest planet Earth - third closest planet to t ...
15.4 Star Systems and Galaxies
... I. Star Systems and Planets A. Star system-groups of two or more stars 1. Binary stars - two stars or double stars a. Eclipsing binary-a system in which one star blocks the light from another II. Planets Around Other Stars A. Astronomers study gravitational effects on stars to see if there is a pla ...
... I. Star Systems and Planets A. Star system-groups of two or more stars 1. Binary stars - two stars or double stars a. Eclipsing binary-a system in which one star blocks the light from another II. Planets Around Other Stars A. Astronomers study gravitational effects on stars to see if there is a pla ...
Spring `03 final exam study guide
... 32. Name and describe the basic method used to measure the distance to nearby stars. 33. It would be good to have a basic understanding of luminosity classes and how one can determine long distances using spectroscopic parallax. 34. Why are Cepheid variables key factors in determining distances? Wha ...
... 32. Name and describe the basic method used to measure the distance to nearby stars. 33. It would be good to have a basic understanding of luminosity classes and how one can determine long distances using spectroscopic parallax. 34. Why are Cepheid variables key factors in determining distances? Wha ...
sample exam 1
... 1. Draw the heliocentric model of the solar system, including only the Sun and Earth, from a viewpoint at the celestial north pole. Use the standard astronomical symbols for those bodies. Indicate with an arrow the direction in which the Earth orbits. 2. On the same drawing above, indicate with an a ...
... 1. Draw the heliocentric model of the solar system, including only the Sun and Earth, from a viewpoint at the celestial north pole. Use the standard astronomical symbols for those bodies. Indicate with an arrow the direction in which the Earth orbits. 2. On the same drawing above, indicate with an a ...
New Directions in Star Cluster Research
... Consequences of Definition of a Star Stars must evolve (as they release energy) - changes in structure and/or chemical composition Death of a star can occur in 2 ways (a) Violation of first condition - self gravity (breakup of star scattering material into space) (b) Violation second condition - in ...
... Consequences of Definition of a Star Stars must evolve (as they release energy) - changes in structure and/or chemical composition Death of a star can occur in 2 ways (a) Violation of first condition - self gravity (breakup of star scattering material into space) (b) Violation second condition - in ...
How was the Solar System Formed?
... Planets of the Solar System Standards: 1b Students know the evidence from Earth and Moon rocks indicates that the Solar System was formed from a Nebula cloud of dust and gas approximately 4.6 billion years ago (bya). 1c Students know the evidence from geological studies of Earth and other planets su ...
... Planets of the Solar System Standards: 1b Students know the evidence from Earth and Moon rocks indicates that the Solar System was formed from a Nebula cloud of dust and gas approximately 4.6 billion years ago (bya). 1c Students know the evidence from geological studies of Earth and other planets su ...
Is there life in space? Activity 4: Habitable Conditions
... Page 3: Goldilocks Planets Q. How does a planet's size affect its potential to support life? A. Larger planets are able to hold an atmosphere. Atmospheres are necessary for life on the surface. A larger planet is also more likely to have tectonic activity, which means that there is a source of heat ...
... Page 3: Goldilocks Planets Q. How does a planet's size affect its potential to support life? A. Larger planets are able to hold an atmosphere. Atmospheres are necessary for life on the surface. A larger planet is also more likely to have tectonic activity, which means that there is a source of heat ...
The Solar System
... • Jupiter is the fifth planet from the Sun. • It is the largest planet in the Solar System. • It has 16 moons, two of which are huge. • Its largest moon is called Ganymede. • Jupiter has a small ring system. • One day on Jupiter lasts nearly 10 Earth hours. • It takes 11.9 years to orbit the Sun. b4 ...
... • Jupiter is the fifth planet from the Sun. • It is the largest planet in the Solar System. • It has 16 moons, two of which are huge. • Its largest moon is called Ganymede. • Jupiter has a small ring system. • One day on Jupiter lasts nearly 10 Earth hours. • It takes 11.9 years to orbit the Sun. b4 ...
Solar System Information
... •Ultimate source of life for the planet •Self-illuminating (lights itself) ball of gas •Its gravity holds the planets in orbit •Its mass makes up 99% of the solar system’s mass •It has an atmosphere and an interior •Diameter of the Sun is the same as 10 Jupiters lined up side-by-side •Sun is made of ...
... •Ultimate source of life for the planet •Self-illuminating (lights itself) ball of gas •Its gravity holds the planets in orbit •Its mass makes up 99% of the solar system’s mass •It has an atmosphere and an interior •Diameter of the Sun is the same as 10 Jupiters lined up side-by-side •Sun is made of ...
Why SETI will Fail
... webpage (10/15/05), on “The future of SETI research” • “Scientists who participate in this research are more optimistic than ever before that they could find signals from space that would indicate that we’re not alone. They are bolstered in this view by several recent developments. In the past 5 yea ...
... webpage (10/15/05), on “The future of SETI research” • “Scientists who participate in this research are more optimistic than ever before that they could find signals from space that would indicate that we’re not alone. They are bolstered in this view by several recent developments. In the past 5 yea ...
What is the Solar System? I Arrangement The Sun – in the middle on
... origin of the Universe. The idea of it comes from that the Universe expands, so it had to be very small in the past, and its density was large. The base of this theory is the assumption that about 15 billion years ago every present today matter was concentrated in a single infinitesimal point of inf ...
... origin of the Universe. The idea of it comes from that the Universe expands, so it had to be very small in the past, and its density was large. The base of this theory is the assumption that about 15 billion years ago every present today matter was concentrated in a single infinitesimal point of inf ...
Lesson 2_GoingSolar
... different temperature. After energy is created through nuclear fusion, at the center of the sun, it slowly comes to the surface, and then goes into space. ...
... different temperature. After energy is created through nuclear fusion, at the center of the sun, it slowly comes to the surface, and then goes into space. ...
Wasp-17b: An Ultra-Low Density Planet in a Probable Retrograde
... ⇒ WASP-17b is an example that the formation or planetary systems could be quite complicated ...
... ⇒ WASP-17b is an example that the formation or planetary systems could be quite complicated ...
Why We Have Seasons
... moon, comets, asteroids - laws were used by friend, Edmond Halley to predict the reappear of a comet - also used by Adams and Leverrier to find a planet beyond the orbit of Uranus, based on slight irregularities in that planets orbital motion: Neptune - Law #1- a body remains at rest or moves in a s ...
... moon, comets, asteroids - laws were used by friend, Edmond Halley to predict the reappear of a comet - also used by Adams and Leverrier to find a planet beyond the orbit of Uranus, based on slight irregularities in that planets orbital motion: Neptune - Law #1- a body remains at rest or moves in a s ...
Loz and Megs Solar System Presentation
... from the Sun and is the largest of the terrestrial planets. Earth is also referred to as "the Earth", "Planet Earth", "Gaia", "Terra", or "the World". This is the first planet known to have liquid water on the surface and the only place in the universe known to have life on it. Earth has a magnetic ...
... from the Sun and is the largest of the terrestrial planets. Earth is also referred to as "the Earth", "Planet Earth", "Gaia", "Terra", or "the World". This is the first planet known to have liquid water on the surface and the only place in the universe known to have life on it. Earth has a magnetic ...
Ch. 20 Classifying Objects in the Solar System
... 2. Objects which orbit the Sun, are nearly round and have sufficient gravity to “clear” their orbits are called _______________. The first four of these objects closest to the Sun are called the ___________ ____________ and are described as __________________, meaning rocky or Earth like. The four l ...
... 2. Objects which orbit the Sun, are nearly round and have sufficient gravity to “clear” their orbits are called _______________. The first four of these objects closest to the Sun are called the ___________ ____________ and are described as __________________, meaning rocky or Earth like. The four l ...
Chapter 13 Notes – The Deaths of Stars
... Stars with less than __________ solar masses are completely convective. Hydrogen and helium remain well _______________ throughout the entire star No phase of _____________ burning with expansion to ______________ Not hot enough to ignite ____________ burning III. Sunlike stars 0.4 to ____ ...
... Stars with less than __________ solar masses are completely convective. Hydrogen and helium remain well _______________ throughout the entire star No phase of _____________ burning with expansion to ______________ Not hot enough to ignite ____________ burning III. Sunlike stars 0.4 to ____ ...
doc - UWM
... equator (in the middle) so for neither hemisphere the sun appears to be particularly high or low in the sky. A site with excellent downloadable videos vividly showing this concept and many others is available at http://www.mogivice.com/Pagine/Downloads.html Stars are forming in the universe as you r ...
... equator (in the middle) so for neither hemisphere the sun appears to be particularly high or low in the sky. A site with excellent downloadable videos vividly showing this concept and many others is available at http://www.mogivice.com/Pagine/Downloads.html Stars are forming in the universe as you r ...
Semester #1 – GeoScience Review Guide – Final Exam Scale
... 40. Which term describes a cloud of dust and gas in space, the birthplace of stars? 41. The layer of the Sun that radiates most of the light that reaches Earth is called the _________________. 42. Where do stars spend 90% of their life cycle? 43. The thin orangish-red rim seen around the sun during ...
... 40. Which term describes a cloud of dust and gas in space, the birthplace of stars? 41. The layer of the Sun that radiates most of the light that reaches Earth is called the _________________. 42. Where do stars spend 90% of their life cycle? 43. The thin orangish-red rim seen around the sun during ...
PHYS 390 Lecture 9 - Planetary atmospheres 9
... all of the CO2 in limestone today were released, atmosphere would resemble Venus) • Earth is too far away from Sun to have the runaway greenhouse effect of Venus Mars: • atmosphere is very thin, 95% CO2 and 2.7% N2 • polar caps are also mainly CO2 • recent observation of extensive water-ice fields • ...
... all of the CO2 in limestone today were released, atmosphere would resemble Venus) • Earth is too far away from Sun to have the runaway greenhouse effect of Venus Mars: • atmosphere is very thin, 95% CO2 and 2.7% N2 • polar caps are also mainly CO2 • recent observation of extensive water-ice fields • ...
Planetary habitability
Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and sustain life. Life may develop directly on a planet or satellite or be transferred to it from another body, a theoretical process known as panspermia. As the existence of life beyond Earth is unknown, planetary habitability is largely an extrapolation of conditions on Earth and the characteristics of the Sun and Solar System which appear favourable to life's flourishing—in particular those factors that have sustained complex, multicellular organisms and not just simpler, unicellular creatures. Research and theory in this regard is a component of planetary science and the emerging discipline of astrobiology.An absolute requirement for life is an energy source, and the notion of planetary habitability implies that many other geophysical, geochemical, and astrophysical criteria must be met before an astronomical body can support life. In its astrobiology roadmap, NASA has defined the principal habitability criteria as ""extended regions of liquid water, conditions favourable for the assembly of complex organic molecules, and energy sources to sustain metabolism.""In determining the habitability potential of a body, studies focus on its bulk composition, orbital properties, atmosphere, and potential chemical interactions. Stellar characteristics of importance include mass and luminosity, stable variability, and high metallicity. Rocky, terrestrial-type planets and moons with the potential for Earth-like chemistry are a primary focus of astrobiological research, although more speculative habitability theories occasionally examine alternative biochemistries and other types of astronomical bodies.The idea that planets beyond Earth might host life is an ancient one, though historically it was framed by philosophy as much as physical science. The late 20th century saw two breakthroughs in the field. The observation and robotic spacecraft exploration of other planets and moons within the Solar System has provided critical information on defining habitability criteria and allowed for substantial geophysical comparisons between the Earth and other bodies. The discovery of extrasolar planets, beginning in the early 1990s and accelerating thereafter, has provided further information for the study of possible extraterrestrial life. These findings confirm that the Sun is not unique among stars in hosting planets and expands the habitability research horizon beyond the Solar System.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently. On 4 November 2013, astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of Sun-like stars and red dwarfs within the Milky Way. 11 billion of these estimated planets may be orbiting Sun-like stars. The nearest such planet may be 12 light-years away, according to the scientists.