The Solar System
... Earth is unique in our solar system for having liquid water at its surface. Mercury has a greater temperature range than any of the other planets. A day on Venus is longer than its year. The reddish tinge on Mars is caused by the breakdown of iron-rich rocks. ...
... Earth is unique in our solar system for having liquid water at its surface. Mercury has a greater temperature range than any of the other planets. A day on Venus is longer than its year. The reddish tinge on Mars is caused by the breakdown of iron-rich rocks. ...
Achieving the Goals and Objectives of the 2008 NASA Astrobiology
... life on extrasolar planets. Much of the current excitement in the field of extrasolar planets stems from the fact that well over 300 planetary systems in orbit around stars in our Milky Way galaxy have already been detected (see Figure 1), and the pace of discovery continues to accelerate. The plane ...
... life on extrasolar planets. Much of the current excitement in the field of extrasolar planets stems from the fact that well over 300 planetary systems in orbit around stars in our Milky Way galaxy have already been detected (see Figure 1), and the pace of discovery continues to accelerate. The plane ...
ASTR 101 Final Study Guide I received study guides for Chapters 1
... How do astronomers explain the fact that Titan was able to retain an atmosphere, while Jupiter’s Ganymede did not? Titan is colder, the gas molecules above Titan’s surface do not have enough speed to escape. The equatorial diameter of Jupiter is larger than its diameter through the poles. Why? Jupit ...
... How do astronomers explain the fact that Titan was able to retain an atmosphere, while Jupiter’s Ganymede did not? Titan is colder, the gas molecules above Titan’s surface do not have enough speed to escape. The equatorial diameter of Jupiter is larger than its diameter through the poles. Why? Jupit ...
ASTR120 Homework 6 − Solutions
... The Trojan asteroids have orbits that are 60 ° ahead and 60 ° behind the orbit Jupiter in its orbit. This means that the asteroids, Jupiter, and Sun will always make a 60 ° angle. Therefore, Jupiter will always appear to be in the gibbous phase. Whether it is waxing or waning depends on whether the ...
... The Trojan asteroids have orbits that are 60 ° ahead and 60 ° behind the orbit Jupiter in its orbit. This means that the asteroids, Jupiter, and Sun will always make a 60 ° angle. Therefore, Jupiter will always appear to be in the gibbous phase. Whether it is waxing or waning depends on whether the ...
Fulltext
... overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, has not cleared the neighbourhood around its orbit, and is not a satellite"). The creation of this new category was necessary after a number of large planetary-like bodies were recently discovered beyond th ...
... overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, has not cleared the neighbourhood around its orbit, and is not a satellite"). The creation of this new category was necessary after a number of large planetary-like bodies were recently discovered beyond th ...
Apparent Motions of Celestial Objects
... Throughout human history, ancient civilizations and modern science have sought to explain the “apparent motions of celestial objects in the sky. The geocentric model places the Earth as a stationary body at the center of the universe – with most celestial objects revolving around it. ...
... Throughout human history, ancient civilizations and modern science have sought to explain the “apparent motions of celestial objects in the sky. The geocentric model places the Earth as a stationary body at the center of the universe – with most celestial objects revolving around it. ...
What are constellations? - Red Hook Central Schools
... planets rotate. This band is then divided into a number of sections, each of which is named after one of the stellar constellations. As the ...
... planets rotate. This band is then divided into a number of sections, each of which is named after one of the stellar constellations. As the ...
PHYSICS 1500 - ASTRONOMY TOTAL: 100 marks Section A Please
... hydrogen into helium. Briefly describe: (i) the reactions involved in the proton-proton cycle. (ii) why this reaction produces energy. ...
... hydrogen into helium. Briefly describe: (i) the reactions involved in the proton-proton cycle. (ii) why this reaction produces energy. ...
Motions of the Planets
... the lower left and his solution for this problem is shown in the upper right. Ptolemy used “epicycles” to solve the problem of explaining retrograde motion but these epicycles were cumbersome and really not natural though his geocentric model was the model of choice for centuries. Why do you suppose ...
... the lower left and his solution for this problem is shown in the upper right. Ptolemy used “epicycles” to solve the problem of explaining retrograde motion but these epicycles were cumbersome and really not natural though his geocentric model was the model of choice for centuries. Why do you suppose ...
Planets Teacher Guide
... Stick each pin through an index card; this makes them easier to see. Tape the other planet-objects to index cards. Label each card appropriately. This helps keep the planets straight and makes the items harder to lose. Begin by placing all the objects on a table. Have the students examine them and p ...
... Stick each pin through an index card; this makes them easier to see. Tape the other planet-objects to index cards. Label each card appropriately. This helps keep the planets straight and makes the items harder to lose. Begin by placing all the objects on a table. Have the students examine them and p ...
Jupiter
... Jupiter is the most stormiest planet in our solar system with wind that mostly reach 300 miles per hour and one of the strongest, biggest and the longest storm to last is the great red spot in southern hemisphere and it has lasted for more than 300 years and the wind speed over 500 miles per hour . ...
... Jupiter is the most stormiest planet in our solar system with wind that mostly reach 300 miles per hour and one of the strongest, biggest and the longest storm to last is the great red spot in southern hemisphere and it has lasted for more than 300 years and the wind speed over 500 miles per hour . ...
Nov-17 - X-Squared Radio
... scriptural treatises, as well as historical records produced by the ancients, than any other library on Earth. The Roman Catholic Church is further informed about the future of humanity from the numerous Marian apparitions which have occurred around the world over the past two hundred years. It is a ...
... scriptural treatises, as well as historical records produced by the ancients, than any other library on Earth. The Roman Catholic Church is further informed about the future of humanity from the numerous Marian apparitions which have occurred around the world over the past two hundred years. It is a ...
The Magnitude Scale
... are not "exact", in that celestial objects are often measured to a precision or 0.1 or 0.01 magnitude; for example, Sirius shines at V = -1.47 (Yale Bright Star Catalogue), and the planet Venus varies in brightness generally from magnitude -4.5 to -3.7. Note that a comet of magnitude 5 will not be a ...
... are not "exact", in that celestial objects are often measured to a precision or 0.1 or 0.01 magnitude; for example, Sirius shines at V = -1.47 (Yale Bright Star Catalogue), and the planet Venus varies in brightness generally from magnitude -4.5 to -3.7. Note that a comet of magnitude 5 will not be a ...
ASTRO-114--Lecture 23-
... discussing the four inner planets — Mercury, Venus, Earth and Mars. They may be the most important to us because they’re the nearest to us and we’re living on one of ‘em. But as far as the solar system is concerned, those four planets are minor. The large planets, the ones that have most of the mate ...
... discussing the four inner planets — Mercury, Venus, Earth and Mars. They may be the most important to us because they’re the nearest to us and we’re living on one of ‘em. But as far as the solar system is concerned, those four planets are minor. The large planets, the ones that have most of the mate ...
Transits of planets: mean densities
... Terrestrial planets were formed by the accumulation of solid bodies with elemental abundances similar to (chondritic) meteorites. There are four elements which dominate: – O - oxygen: mostly bound in silicates X-SiOx , but also other minerals like MgO, – Fe - iron: bound in FeS, in silicates FeSiOx ...
... Terrestrial planets were formed by the accumulation of solid bodies with elemental abundances similar to (chondritic) meteorites. There are four elements which dominate: – O - oxygen: mostly bound in silicates X-SiOx , but also other minerals like MgO, – Fe - iron: bound in FeS, in silicates FeSiOx ...
Evening Planets in School Year 2016-17
... Saturn is still visible in the evening sky in September 2016, lingering only 6° from the reddish first-magnitude star Antares, heart of the Scorpion. If you want students to have good telescopic views of the rings, be sure to schedule a viewing session early in this school year, while Saturn is stil ...
... Saturn is still visible in the evening sky in September 2016, lingering only 6° from the reddish first-magnitude star Antares, heart of the Scorpion. If you want students to have good telescopic views of the rings, be sure to schedule a viewing session early in this school year, while Saturn is stil ...
Galileo and the physics of motion
... Breaking down the Force…. • Space is homogeneous and isotropic implies that gravity emanates equally in all directions in 3 dimensional space ... The surface of a sphere = 4πR2. If a source is at the center of the sphere, its flux is spread out over an area that is increasing in proportion to the ...
... Breaking down the Force…. • Space is homogeneous and isotropic implies that gravity emanates equally in all directions in 3 dimensional space ... The surface of a sphere = 4πR2. If a source is at the center of the sphere, its flux is spread out over an area that is increasing in proportion to the ...
1Space (Leah)
... pretty important planet, but in fact we live on a piece of dirt. Our Solar System is really just the sun with a few pieces left over, and we live on one of those pieces ...
... pretty important planet, but in fact we live on a piece of dirt. Our Solar System is really just the sun with a few pieces left over, and we live on one of those pieces ...
Is there life outside of Earth? Activity 2: Moving Stars and Their Planets
... Q. Explain what influenced your certainty rating in the last question. A. Student answers will vary. Answers should include reference to the possibility of many combinations that result in the same graph. Page 5: Limitations of Noise Q. Does this graph show a planet orbiting a star? What is your pre ...
... Q. Explain what influenced your certainty rating in the last question. A. Student answers will vary. Answers should include reference to the possibility of many combinations that result in the same graph. Page 5: Limitations of Noise Q. Does this graph show a planet orbiting a star? What is your pre ...
Burgess_final - University of Hertfordshire
... Astronomers have found three brown dwarfs with estimated masses of less than 10 times that of Jupiter, making them among the youngest and lowest mass sub-stellar objects detected in the solar neighbourhood to date. The observations were made by a team of astronomers working at the Laboratoire d'Astr ...
... Astronomers have found three brown dwarfs with estimated masses of less than 10 times that of Jupiter, making them among the youngest and lowest mass sub-stellar objects detected in the solar neighbourhood to date. The observations were made by a team of astronomers working at the Laboratoire d'Astr ...
File
... that the planetai are actually planets, not wandering stars. Because of their proximity to Earth and their orbits around the sun, the planets appear to move relative to the stars. ...
... that the planetai are actually planets, not wandering stars. Because of their proximity to Earth and their orbits around the sun, the planets appear to move relative to the stars. ...
Definition of planet
The definition of planet, since the word was coined by the ancient Greeks, has included within its scope a wide range of celestial bodies. Greek astronomers employed the term asteres planetai (ἀστέρες πλανῆται), ""wandering stars"", for star-like objects which apparently moved over the sky. Over the millennia, the term has included a variety of different objects, from the Sun and the Moon to satellites and asteroids.By the end of the 19th century the word planet, though it had yet to be defined, had become a working term applied only to a small set of objects in the Solar System. After 1992, however, astronomers began to discover many additional objects beyond the orbit of Neptune, as well as hundreds of objects orbiting other stars. These discoveries not only increased the number of potential planets, but also expanded their variety and peculiarity. Some were nearly large enough to be stars, while others were smaller than Earth's moon. These discoveries challenged long-perceived notions of what a planet could be.The issue of a clear definition for planet came to a head in 2005 with the discovery of the trans-Neptunian object Eris, a body more massive than the smallest then-accepted planet, Pluto. In its 2006 response, the International Astronomical Union (IAU), recognised by astronomers as the world body responsible for resolving issues of nomenclature, released its decision on the matter. This definition, which applies only to the Solar System, states that a planet is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has ""cleared its neighbourhood"" of smaller objects around its orbit. Under this new definition, Pluto and the other trans-Neptunian objects do not qualify as planets. The IAU's decision has not resolved all controversies, and while many scientists have accepted the definition, some in the astronomical community have rejected it outright.