Three newly discovered sub-Jupiter-mass planets: WASP
... 2004; Huélamo et al. 2008). Transit surveys are not affected by this ambiguity as stellar activity does not produce transit-like features in light curves. The separation of the RV contributions due to reflex motion from those due to activity can prove simple or unnecessary in the case of short peri ...
... 2004; Huélamo et al. 2008). Transit surveys are not affected by this ambiguity as stellar activity does not produce transit-like features in light curves. The separation of the RV contributions due to reflex motion from those due to activity can prove simple or unnecessary in the case of short peri ...
Extrasolar Cosmochemistry
... We now consider the amount of mass required in our standard model; we argue that minor planets such as asteroids are the dominant source for the pollution of white dwarf atmospheres, although there might be instances in which tidal disruption and accretion of an entire planet the size of Mars has oc ...
... We now consider the amount of mass required in our standard model; we argue that minor planets such as asteroids are the dominant source for the pollution of white dwarf atmospheres, although there might be instances in which tidal disruption and accretion of an entire planet the size of Mars has oc ...
What CAN You See With a Telescope?
... Asteroids are now numbered in the order in which they were discovered. Can see that the relative brightness of the first four asteroids may have been a factor in their early discovery? Even Ceres, the brightest asteroid, is only a moderately bright star when seen through a telescope! Most asteroid ...
... Asteroids are now numbered in the order in which they were discovered. Can see that the relative brightness of the first four asteroids may have been a factor in their early discovery? Even Ceres, the brightest asteroid, is only a moderately bright star when seen through a telescope! Most asteroid ...
Distant future of the Sun and Earth revisited
... level that not even biological or other feedback mechanisms can prevent. There will certainly be a point at which life is no longer sustainable, and we shall discuss this further in Section 3. After that, the fate of the Earth is of interest mainly insofar as it tells us what we might expect to see ...
... level that not even biological or other feedback mechanisms can prevent. There will certainly be a point at which life is no longer sustainable, and we shall discuss this further in Section 3. After that, the fate of the Earth is of interest mainly insofar as it tells us what we might expect to see ...
Pattern Recognition in Physics The complex planetary
... 2013); the Venus–Earth synodic period is 583.924 days and there are five inferior conjunctions in 8 yr. In fact, as Fig. 1b shows, in one synodic period Earth revolves 1.59867 times around the Sun, while Venus rotates on its own axis 2.40277 times in the opposite direction. The sum of the fractional ...
... 2013); the Venus–Earth synodic period is 583.924 days and there are five inferior conjunctions in 8 yr. In fact, as Fig. 1b shows, in one synodic period Earth revolves 1.59867 times around the Sun, while Venus rotates on its own axis 2.40277 times in the opposite direction. The sum of the fractional ...
Lecture26_Future
... Arthur Clarke: “Sometimes I think we’re alone in the universe, and sometimes I think we’re not. In either case, the idea is quite staggering.” ...
... Arthur Clarke: “Sometimes I think we’re alone in the universe, and sometimes I think we’re not. In either case, the idea is quite staggering.” ...
MEarth
... yield from 2000 M dwarfs is 3.2 planets, which would complement Kepler’s expected harvest of habitable planets around Sun-like stars (Gillon et al. 2005). Correspondingly, a null result places an upper limit for the occurrence rate of such habitable planets at 15% (at 99% confidence). Note that late ...
... yield from 2000 M dwarfs is 3.2 planets, which would complement Kepler’s expected harvest of habitable planets around Sun-like stars (Gillon et al. 2005). Correspondingly, a null result places an upper limit for the occurrence rate of such habitable planets at 15% (at 99% confidence). Note that late ...
Trading Cards
... Objective – Using data tables, I can describe the characteristics of comets, asteroids, and meteors. Asteroids ...
... Objective – Using data tables, I can describe the characteristics of comets, asteroids, and meteors. Asteroids ...
Astronomical Circumstances
... This DRAFT document is an excerpt from Principles of Planetary Biology, by Tom E. Morris. based on their brightness (magnitude), temperature, receive each moment, so the warmer the planet will get radius, luminosity, mix of colors (spectral class), and (all other things being equal). This being the ...
... This DRAFT document is an excerpt from Principles of Planetary Biology, by Tom E. Morris. based on their brightness (magnitude), temperature, receive each moment, so the warmer the planet will get radius, luminosity, mix of colors (spectral class), and (all other things being equal). This being the ...
Young Astronomers Digest
... you are), this month’s issue is on the Myths and Urban Legends of Astronomy. For the younger minds, we’ve laid out myths like the phases and the spinning of the moon (yes it does spin!) as well as why stars actually don’t come in only the colour white and why Polaris may not be as bright as you thin ...
... you are), this month’s issue is on the Myths and Urban Legends of Astronomy. For the younger minds, we’ve laid out myths like the phases and the spinning of the moon (yes it does spin!) as well as why stars actually don’t come in only the colour white and why Polaris may not be as bright as you thin ...
The Kuiper Belt and Other Debris Disks - UCLA
... dominated by hydrogen and helium. Throughout the bulk of each planet these gases are compressed, however, into a degenerate (metallic) liquid that supports convection and sustains a magnetic field through dynamo action. The compositional similarity to the Sun suggests to some investigators that the ...
... dominated by hydrogen and helium. Throughout the bulk of each planet these gases are compressed, however, into a degenerate (metallic) liquid that supports convection and sustains a magnetic field through dynamo action. The compositional similarity to the Sun suggests to some investigators that the ...
Life Beyond Earth Exhibition
... Located on the second level of the building, Life Beyond Earth is part of MSC space and aerospace exhibits housed in the Our Place In Space area of the building. Major sections of the exhibition cover the vastness of the universe, places in the solar system where life could exist, the search for exo ...
... Located on the second level of the building, Life Beyond Earth is part of MSC space and aerospace exhibits housed in the Our Place In Space area of the building. Major sections of the exhibition cover the vastness of the universe, places in the solar system where life could exist, the search for exo ...
ABSOLUTE AND APPARENT MAGNITUDES
... At magnitude -19.36, Sol would still look brighter than the full moon seen from Earth as seen from Neptune. It would obviously cast shadows, and would scatter light in Neptune’s cloudtops so that the sky would probably be a deep blue as seen by a viewer sitting in the planet’s upper atmosphere. Next ...
... At magnitude -19.36, Sol would still look brighter than the full moon seen from Earth as seen from Neptune. It would obviously cast shadows, and would scatter light in Neptune’s cloudtops so that the sky would probably be a deep blue as seen by a viewer sitting in the planet’s upper atmosphere. Next ...
What causes the moon to change in appearance
... Doesn’t it seem as if the moon’s shape changes night after night? As the moon orbits –the curved path of a celestial object or spacecraft around a star or planet—Earth, it appears as though the moon is changing its shape in the sky. This is because as the moon changes its position, the amount of sun ...
... Doesn’t it seem as if the moon’s shape changes night after night? As the moon orbits –the curved path of a celestial object or spacecraft around a star or planet—Earth, it appears as though the moon is changing its shape in the sky. This is because as the moon changes its position, the amount of sun ...
the orbits of neptune`s outer satellites
... orbits about the Sun (so-called direct orbits). Further away from the planet, a dynamically diverse population of satellites with potentially various origins is encountered. They are called the “irregulars” and are characterized by their distant orbits with large inclinations, eccentricities, and lo ...
... orbits about the Sun (so-called direct orbits). Further away from the planet, a dynamically diverse population of satellites with potentially various origins is encountered. They are called the “irregulars” and are characterized by their distant orbits with large inclinations, eccentricities, and lo ...
PDF only - at www.arxiv.org.
... observations of several inactive M dwarfs, but its sensitivity and spectral ...
... observations of several inactive M dwarfs, but its sensitivity and spectral ...
Chapter 1 Clicker Questions
... False, but it would be a good idea to do so. False, even a spacecraft that moved close to the speed of light would take tens of thousands of years to get to a good vantage point. False, as the Sun and Earth move through the galaxy, we will be able to take a photograph from a different perspective. F ...
... False, but it would be a good idea to do so. False, even a spacecraft that moved close to the speed of light would take tens of thousands of years to get to a good vantage point. False, as the Sun and Earth move through the galaxy, we will be able to take a photograph from a different perspective. F ...
Introduction
... 1995). This exoplanet, 51 Pegasi b, is classified as a Hot Jupiter as it is similar in mass to Jupiter (half the mass) and it orbits close to its star (about 8 times closer than Mercury orbits the Sun). The discovery of Hot Jupiters challenged our understanding of planet formation and evolution. Gas ...
... 1995). This exoplanet, 51 Pegasi b, is classified as a Hot Jupiter as it is similar in mass to Jupiter (half the mass) and it orbits close to its star (about 8 times closer than Mercury orbits the Sun). The discovery of Hot Jupiters challenged our understanding of planet formation and evolution. Gas ...
Our Solar System
... © All rights reserved. Digital duplication, electronic transmission or posting of the contents contained, printing, photocopying, and/or distribution of copies of content is prohibited with the exception of the purchaser reproducing as many copies as necessary for use by their own family or single c ...
... © All rights reserved. Digital duplication, electronic transmission or posting of the contents contained, printing, photocopying, and/or distribution of copies of content is prohibited with the exception of the purchaser reproducing as many copies as necessary for use by their own family or single c ...
Chapter 16 - Follow “Ironmtn.wordpress.com”
... Difficulty Level: Easy 18. An astronaut standing on Mars and attempting to look at Jupiter might have her view partly blocked by the intervening ...
... Difficulty Level: Easy 18. An astronaut standing on Mars and attempting to look at Jupiter might have her view partly blocked by the intervening ...
Stellar Metamorphosis as Alternative to Nebular Hypothesis
... 5. The science establishments have found what they would consider to be an “exo-planet” without a host star. [7] Their current definition of brown dwarf and “exo-planet” will be confusing because of arbitrary definitions. [8] This discovery actually falsifies their definition of “planet” because pla ...
... 5. The science establishments have found what they would consider to be an “exo-planet” without a host star. [7] Their current definition of brown dwarf and “exo-planet” will be confusing because of arbitrary definitions. [8] This discovery actually falsifies their definition of “planet” because pla ...
Atoms and Stars IST 3360 and IST 1990
... -H: deficient in homework -L: deficient in lab work -E: deficient in exams and/or quizzes -T: deficient in attendance Can be doubled up, e.g. –LT ---: three or more problems These are the online grades, but they get spelled out in letter (email?) ...
... -H: deficient in homework -L: deficient in lab work -E: deficient in exams and/or quizzes -T: deficient in attendance Can be doubled up, e.g. –LT ---: three or more problems These are the online grades, but they get spelled out in letter (email?) ...
white dwarf supernova
... However, Sirius A is not hot enough to radiate much in X-rays, so even a small star that is hot enough can outshine it in X-rays. ...
... However, Sirius A is not hot enough to radiate much in X-rays, so even a small star that is hot enough can outshine it in X-rays. ...
There are four terrestrial and four jovian planets.
... Copyright © 2012 Pearson Education, Inc. ...
... Copyright © 2012 Pearson Education, Inc. ...
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.