PSC100 Summary Chapters 10 to Chapter 20
... hydrogen into helium. As long as this process continues, the star is said to be in its MAIN SEQUENCE LIFE TIME. This time that a star remains on the main sequence is determined by the mass of the star in a rather peculiar way. The more massive the star, the hotter the core and the faster the hydroge ...
... hydrogen into helium. As long as this process continues, the star is said to be in its MAIN SEQUENCE LIFE TIME. This time that a star remains on the main sequence is determined by the mass of the star in a rather peculiar way. The more massive the star, the hotter the core and the faster the hydroge ...
Solar system - Wikimedia Commons
... bodies. Other objects that may become classified as dwarf planets are Sedna, Orcus, and Quaoar. From the time of its discovery in 1930 until 2006, Pluto was considered the Solar System's ninth planet. But in the late 20th and early 21st centuries, many objects similar to Pluto were discovered in the ...
... bodies. Other objects that may become classified as dwarf planets are Sedna, Orcus, and Quaoar. From the time of its discovery in 1930 until 2006, Pluto was considered the Solar System's ninth planet. But in the late 20th and early 21st centuries, many objects similar to Pluto were discovered in the ...
A new Cosmos – a novel Physics
... The ancient view of the cosmos Prior to the Copernican revolution, physics and astronomy were based for more than 1500 years on the writings of the greek philosopher Aristotle (384-322 BD) and the ancient world’s “house astronomer" Claudius Ptolemy (Ptolemaios, 100180 AD). In Aristotle’s understand ...
... The ancient view of the cosmos Prior to the Copernican revolution, physics and astronomy were based for more than 1500 years on the writings of the greek philosopher Aristotle (384-322 BD) and the ancient world’s “house astronomer" Claudius Ptolemy (Ptolemaios, 100180 AD). In Aristotle’s understand ...
Astronomy 07 Life in the Universe Final Exam Test Bank Homework
... 18. This scientist gave us three laws about planetary motion, but without an explanation as to how they worked A) Ptolemy B) Kepler C) Galileo D) Newton E) Einstein 19. This scientist gave us three laws about physics, which explained how objects in our solar system orbit each other A) Ptolemy B) Ke ...
... 18. This scientist gave us three laws about planetary motion, but without an explanation as to how they worked A) Ptolemy B) Kepler C) Galileo D) Newton E) Einstein 19. This scientist gave us three laws about physics, which explained how objects in our solar system orbit each other A) Ptolemy B) Ke ...
RTF - Cosmic Adventures Traveling Planetarium
... planetarium is a tool for doing so. You'll be discussing some topics outside the dome, then going inside to learn more. B. Define the words “star,” “planet,” and “moon.” A star generates light (energy) through nuclear fusion and rotates on its axis, but it remains in an essentially constant position ...
... planetarium is a tool for doing so. You'll be discussing some topics outside the dome, then going inside to learn more. B. Define the words “star,” “planet,” and “moon.” A star generates light (energy) through nuclear fusion and rotates on its axis, but it remains in an essentially constant position ...
A new Cosmos – a novel Physics
... The ancient view of the cosmos Prior to the Copernican revolution, physics and astronomy were based for more than 1500 years on the writings of the greek philosopher Aristotle (384-322 BD) and the ancient world’s “house astronomer" Claudius Ptolemy (Ptolemaios, 100180 AD). In Aristotle’s understand ...
... The ancient view of the cosmos Prior to the Copernican revolution, physics and astronomy were based for more than 1500 years on the writings of the greek philosopher Aristotle (384-322 BD) and the ancient world’s “house astronomer" Claudius Ptolemy (Ptolemaios, 100180 AD). In Aristotle’s understand ...
Lecture 6 Recall: Geocentric Model of Solar System
... Heliocentric fixes the orbits • To get the right amount of retrograde motion, must fix sidereal period and orbit size for each planet. ...
... Heliocentric fixes the orbits • To get the right amount of retrograde motion, must fix sidereal period and orbit size for each planet. ...
No Slide Title
... billion years) in the Universe are slim – With less heavy elements available terrestrial planets may be smaller and lower in mass than in our solar system – Is there a threshold metallicity for life to start (e.g. ½ solar)? ...
... billion years) in the Universe are slim – With less heavy elements available terrestrial planets may be smaller and lower in mass than in our solar system – Is there a threshold metallicity for life to start (e.g. ½ solar)? ...
Warm- up Question Tell me what you know about The Big Bang
... Describe how the planets developed Describe the formation of the land, the atmosphere, and the oceans of the earth ...
... Describe how the planets developed Describe the formation of the land, the atmosphere, and the oceans of the earth ...
Solar System Formation
... points you can earn that round: 1-5 earns 3 points, 6-10 earns 4 points, 1115 earns 5 points. You may not re-use or re-attempt an answer already mentioned. Be careful not to effectively repeat an answer already given. You must be clear in your answer, and I will be the final judge of whether points ...
... points you can earn that round: 1-5 earns 3 points, 6-10 earns 4 points, 1115 earns 5 points. You may not re-use or re-attempt an answer already mentioned. Be careful not to effectively repeat an answer already given. You must be clear in your answer, and I will be the final judge of whether points ...
Theme 3.1 Astronomy of the Ancients Stonehenge Most people
... Here is a reminder of what we mean by retrograde loops. If you were to go out night after night and look at the motion of Jupiter in this case, over the winter of 2004-2005, you would have noticed it behaving as shown here. It begins by drifting slowly from right to left, from west to east, across t ...
... Here is a reminder of what we mean by retrograde loops. If you were to go out night after night and look at the motion of Jupiter in this case, over the winter of 2004-2005, you would have noticed it behaving as shown here. It begins by drifting slowly from right to left, from west to east, across t ...
Document
... winds heat and compress the disk causing agglomeration out to the snow line. The cores grow by collecting material infalling toward the star. They are in unstable orbits that can change radically or they can be ejected from the system. A core in a highly eccentric orbit that goes far into the disk c ...
... winds heat and compress the disk causing agglomeration out to the snow line. The cores grow by collecting material infalling toward the star. They are in unstable orbits that can change radically or they can be ejected from the system. A core in a highly eccentric orbit that goes far into the disk c ...
Exoplanet Discoveries and the Fermi Paradox
... There are far more class M stars than others, but their continuously habitable zones may be zero width, because the location changes by more than its width as the star heats up. Even if there is a CHZ, it is so close to the star that planets would have tidally locked rotations. This situation is ske ...
... There are far more class M stars than others, but their continuously habitable zones may be zero width, because the location changes by more than its width as the star heats up. Even if there is a CHZ, it is so close to the star that planets would have tidally locked rotations. This situation is ske ...
Kepler-452b is not a new Earth A twin of the Sun
... by the Alice spectrograph, which demonstrate how Pluto’s upper atmosphere is overall much more extended into space than previously thought: 1,600 km instead of 270 km. This new measurement is the result of a Sun-Pluto-spacecraft alignment, carefully planned in order to backlit its atmosphere to inve ...
... by the Alice spectrograph, which demonstrate how Pluto’s upper atmosphere is overall much more extended into space than previously thought: 1,600 km instead of 270 km. This new measurement is the result of a Sun-Pluto-spacecraft alignment, carefully planned in order to backlit its atmosphere to inve ...
Practice test - astronomy
... Day and night are caused by . . . a. the Earth orbiting around the Sun b. the Sun orbiting the Earth c. the tilt of the Earth on its axis d. the Earth ...
... Day and night are caused by . . . a. the Earth orbiting around the Sun b. the Sun orbiting the Earth c. the tilt of the Earth on its axis d. the Earth ...
Our Place in Universe
... We should probably be able to tell how far away something is based upon a known geometry. 1,000 kilometers 1,000,000 kilometers 1,000,000,000 kilometers This would be inconvenient, so we will be using scientific notation in many cases. Just move the decimal point to the right (or left) to make the n ...
... We should probably be able to tell how far away something is based upon a known geometry. 1,000 kilometers 1,000,000 kilometers 1,000,000,000 kilometers This would be inconvenient, so we will be using scientific notation in many cases. Just move the decimal point to the right (or left) to make the n ...
The Mt John University Observatory search for Earth
... gravitationally bound to the inner binary (Wertheimer & Laughlin 2006). Stringent upper mass limits for planets in the habitable zone of Proxima Cen have been presented by Endl & Kürster (2008) and Zechmeister et al. (2009). The star α Cen A is also very similar to our Sun. A mass ratio of the binar ...
... gravitationally bound to the inner binary (Wertheimer & Laughlin 2006). Stringent upper mass limits for planets in the habitable zone of Proxima Cen have been presented by Endl & Kürster (2008) and Zechmeister et al. (2009). The star α Cen A is also very similar to our Sun. A mass ratio of the binar ...
The Moon and Planets
... Why is there not a solar eclipse every month at the time of New Moon, when they are ‘lined up’? It is because the Moon’s orbit is not in exactly the same plane as the Earth’s orbit around the Sun. To understand this fully, watch https://www.youtube.com/watch?v=X6HAp2ft0NE ...
... Why is there not a solar eclipse every month at the time of New Moon, when they are ‘lined up’? It is because the Moon’s orbit is not in exactly the same plane as the Earth’s orbit around the Sun. To understand this fully, watch https://www.youtube.com/watch?v=X6HAp2ft0NE ...
Aug 2015 supplement - Hermanus Astronomy
... but little is known about these first galaxies, and up to now they have just been seen as faint blobs. However, now new observations using the power of ALMA are starting to change this. Astronomers trained ALMA on galaxies that were known to be seen only about 800 million years after the Big Bang. T ...
... but little is known about these first galaxies, and up to now they have just been seen as faint blobs. However, now new observations using the power of ALMA are starting to change this. Astronomers trained ALMA on galaxies that were known to be seen only about 800 million years after the Big Bang. T ...
Unit 2 – The Moon and the Planets
... Why is there not a solar eclipse every month at the time of New Moon, when they are ‘lined up’? It is because the Moon’s orbit is not in exactly the same plane as the Earth’s orbit around the Sun. To understand this fully, watch https://www.youtube.com/watch?v=X6HAp2ft0NE ...
... Why is there not a solar eclipse every month at the time of New Moon, when they are ‘lined up’? It is because the Moon’s orbit is not in exactly the same plane as the Earth’s orbit around the Sun. To understand this fully, watch https://www.youtube.com/watch?v=X6HAp2ft0NE ...
Planetary motion - Inside Mines
... • Kepler’s first law describe the relative orbit of two objects (with mass). • In the case of a satellite to be launched into space, the mass m of the satellite is obviously much smaller than the mass of the Earth M⊕. • Hence, the center of gravity of the system is located at the Earth center, and t ...
... • Kepler’s first law describe the relative orbit of two objects (with mass). • In the case of a satellite to be launched into space, the mass m of the satellite is obviously much smaller than the mass of the Earth M⊕. • Hence, the center of gravity of the system is located at the Earth center, and t ...
origin of the solar system - Breakthrough Science Society
... of the sun, thrown out either by direct collision or violent tidal action caused by another star passing close by, would condense to exhibit outstanding orderliness. The solar material is so hot that it is far more likely to dissipate than to condense into planets. However, with no other satisfactor ...
... of the sun, thrown out either by direct collision or violent tidal action caused by another star passing close by, would condense to exhibit outstanding orderliness. The solar material is so hot that it is far more likely to dissipate than to condense into planets. However, with no other satisfactor ...
an all-sky extrasolar planet survey with multiple object, dispersed
... (5 AU) from parent stars with V < 11. The nearinfrared survey will focus on infrared-bright M stars and may lead to discoveries of super-Earth-mass planets (∼10 Earth masses) in the habitable zones (temperatures consistent with liquid water) around low-mass stars (∼0.3 solar mass). The discovery of ...
... (5 AU) from parent stars with V < 11. The nearinfrared survey will focus on infrared-bright M stars and may lead to discoveries of super-Earth-mass planets (∼10 Earth masses) in the habitable zones (temperatures consistent with liquid water) around low-mass stars (∼0.3 solar mass). The discovery of ...
IAU definition of planet
The definition of planet set in Prague in 2006 by the International Astronomical Union (IAU) states that, in the Solar System, a planet is a celestial body which: is in orbit around the Sun, has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and has ""cleared the neighborhood"" around its orbit.A non-satellite body fulfilling only the first two of these criteria is classified as a ""dwarf planet"". According to the IAU, ""planets and dwarf planets are two distinct classes of objects"". A non-satellite body fulfilling only the first criterion is termed a ""small Solar System body"" (SSSB). Initial drafts planned to include dwarf planets as a subcategory of planets, but because this could potentially have led to the addition of several dozens of planets into the Solar System, this draft was eventually dropped. The definition was a controversial one and has drawn both support and criticism from different astronomers, but has remained in use.According to this definition, there are eight planets in the Solar System. The definition distinguishes planets from smaller bodies and is not useful outside the Solar System, where smaller bodies cannot be found yet. Extrasolar planets, or exoplanets, are covered separately under a complementary 2003 draft guideline for the definition of planets, which distinguishes them from dwarf stars, which are larger.