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11_LectureOutlines
... amounts of ice. • Formed in orbit around jovian planets. • Circular orbits in same direction as planet rotation. ...
... amounts of ice. • Formed in orbit around jovian planets. • Circular orbits in same direction as planet rotation. ...
Kepler Mission: The Search for Earth-sized Planets
... For which of these star(s) will Kepler be able to detect transiting planets? ...
... For which of these star(s) will Kepler be able to detect transiting planets? ...
The Solar System as an Exoplanetary System
... of Fig. 2 repeats this analysis but includes unconfirmed Kepler planets. The skewness for this is small at S = 0.022 (expected magnitude less than 0.034) and the kurtosis is much smaller also, K = −0.18 (expected magnitude less than 0.067). Jupiter lies at 2.4σ, suggesting on the face of it that Jup ...
... of Fig. 2 repeats this analysis but includes unconfirmed Kepler planets. The skewness for this is small at S = 0.022 (expected magnitude less than 0.034) and the kurtosis is much smaller also, K = −0.18 (expected magnitude less than 0.067). Jupiter lies at 2.4σ, suggesting on the face of it that Jup ...
Chapter 29: Our Solar System
... Atmosphere Unlike Earth, Mercury has essentially no atmosphere, and what little does exist is composed primarily of oxygen and sodium, as illustrated in Figure 29-6. The daytime surface temperature on Mercury is 700 K (427°C), while temperatures at night fall to 100 K (173°C). This is the largest d ...
... Atmosphere Unlike Earth, Mercury has essentially no atmosphere, and what little does exist is composed primarily of oxygen and sodium, as illustrated in Figure 29-6. The daytime surface temperature on Mercury is 700 K (427°C), while temperatures at night fall to 100 K (173°C). This is the largest d ...
Spring 2017 - Astronomers of Humboldt
... one commemorated the 50th anniversary of the incorporation of AOH. It is our hope that this year’s Potluck will mark the beginning of many more potlucks to come. It was an enjoyable evening with new and veteran members coming together for fellowship and good food. We were fortunate to enlist HSU Pro ...
... one commemorated the 50th anniversary of the incorporation of AOH. It is our hope that this year’s Potluck will mark the beginning of many more potlucks to come. It was an enjoyable evening with new and veteran members coming together for fellowship and good food. We were fortunate to enlist HSU Pro ...
Free floating planets
... planets that orbit relatively close to their parent stars. This means that radial velocity follow-up will be possible for some planets as the stellar "wobble" signal is larger for shorter period orbits. However, for transiting planets that are low mass, or that orbit very distant stars, stellar radi ...
... planets that orbit relatively close to their parent stars. This means that radial velocity follow-up will be possible for some planets as the stellar "wobble" signal is larger for shorter period orbits. However, for transiting planets that are low mass, or that orbit very distant stars, stellar radi ...
Warm- up Question Tell me what you know about The Big Bang
... clouds of hot gas to arch high above the sun’s surface The arch follows the magnetic field lines; can last a few days to a year Solar flares a violent eruptions of gas; can last several hours Flares thrown into space; cause magnetic storms on earth that can ...
... clouds of hot gas to arch high above the sun’s surface The arch follows the magnetic field lines; can last a few days to a year Solar flares a violent eruptions of gas; can last several hours Flares thrown into space; cause magnetic storms on earth that can ...
Modeling Planet Distances
... Venus is in an insurance agency office a halfmile from Mercury. Interested students might like to research other communities’ scale models and create a similar model in their ...
... Venus is in an insurance agency office a halfmile from Mercury. Interested students might like to research other communities’ scale models and create a similar model in their ...
Formation and Detectability of Terrestrial Planets around
... detection of the HD 69830 system suggests that focused efforts on selected stars may be able to probe down to the characterization of planets with radial velocity half-amplitudes considerably below 1 m s−1 . Targeted planet search around nearby stars may prove to be an efficient and inexpensive path ...
... detection of the HD 69830 system suggests that focused efforts on selected stars may be able to probe down to the characterization of planets with radial velocity half-amplitudes considerably below 1 m s−1 . Targeted planet search around nearby stars may prove to be an efficient and inexpensive path ...
Chapter 11 Jovian Planet Systems Are jovian planets all alike?
... be spherical • Have substantial amounts of ice. • Formed in orbit around jovian planets. • Circular orbits in same direction as planet rotation. ...
... be spherical • Have substantial amounts of ice. • Formed in orbit around jovian planets. • Circular orbits in same direction as planet rotation. ...
Instructional_Design-Nicole_Wells[1]
... Day 1 (30 minutes) The students will write down on a sheet of paper as many facts that they can state about planets, the Sun, moon, asteroids, etc. to see where each child’s background is for the Astronomy chapter. Discuss as entire class by writing on the Mimio everyone’s ideas to see what they com ...
... Day 1 (30 minutes) The students will write down on a sheet of paper as many facts that they can state about planets, the Sun, moon, asteroids, etc. to see where each child’s background is for the Astronomy chapter. Discuss as entire class by writing on the Mimio everyone’s ideas to see what they com ...
Chapter 25: The Solar System Introduction to the Solar System
... circular motion. If you were to let go of the string, the ball would go flying out in a straight line. But the force of the string pulling on the ball keeps the ball moving in a circle. The motion of a planet is very similar, except the force pulling the planet is the attractive force of gravity bet ...
... circular motion. If you were to let go of the string, the ball would go flying out in a straight line. But the force of the string pulling on the ball keeps the ball moving in a circle. The motion of a planet is very similar, except the force pulling the planet is the attractive force of gravity bet ...
Chapter 11 Jovian Planet Systems Are jovian planets all alike
... much larger than Saturn even though it is three times more massive • Jovian planets with even more mass can be smaller than Jupiter ...
... much larger than Saturn even though it is three times more massive • Jovian planets with even more mass can be smaller than Jupiter ...
test - Scioly.org
... DSO BANK: J075141/J174140, NGC 2392, SNR 0509-67.5, Omicron Ceti, SN 2011fe, SNR G1.9 +0.3, NGC 2440, Henize 2248, Henize 3-1357 (Stingray Nebula), Tycho’s SNR, SS Cygni, M15, HM Cancri, Sirius A & B, NGC 1846, and NGC 6960. 15 Clues for 31 points in this section: 1) Clue: Larger companion classifie ...
... DSO BANK: J075141/J174140, NGC 2392, SNR 0509-67.5, Omicron Ceti, SN 2011fe, SNR G1.9 +0.3, NGC 2440, Henize 2248, Henize 3-1357 (Stingray Nebula), Tycho’s SNR, SS Cygni, M15, HM Cancri, Sirius A & B, NGC 1846, and NGC 6960. 15 Clues for 31 points in this section: 1) Clue: Larger companion classifie ...
5 - White Dwarfs - University of Texas Astronomy
... described many times now, nuclear ignition under conditions where the star is supported by the quantum pressure is very unstable. Ignition of carbon under these conditions would lead to a violent explosion. This explosion would occur in a star devoid of hydrogen, save perhaps for a negligibly thin l ...
... described many times now, nuclear ignition under conditions where the star is supported by the quantum pressure is very unstable. Ignition of carbon under these conditions would lead to a violent explosion. This explosion would occur in a star devoid of hydrogen, save perhaps for a negligibly thin l ...
Identifying Solar System Patterns
... together, so that their orbital periods are similar. In comparison, the orbits of the gas giants are much more widely spaced, making the relative differences in their orbital periods much more significant. 2) What do you think causes this trend? The planets orbit in concentric ellipses (most are alm ...
... together, so that their orbital periods are similar. In comparison, the orbits of the gas giants are much more widely spaced, making the relative differences in their orbital periods much more significant. 2) What do you think causes this trend? The planets orbit in concentric ellipses (most are alm ...
MS The Solar System
... later found out that Pluto was not like other planets. For one thing, what they were calling Pluto was not a single object. They were actually seeing Pluto and its moon, Charon. In older telescopes, they looked like one object. This one object looked big enough to be a planet. Alone, Pluto was not v ...
... later found out that Pluto was not like other planets. For one thing, what they were calling Pluto was not a single object. They were actually seeing Pluto and its moon, Charon. In older telescopes, they looked like one object. This one object looked big enough to be a planet. Alone, Pluto was not v ...
Size Scales - Leslie Looney
... • Let’s take some time to get our bearings around the Universe. • We live in the Milky Way. ...
... • Let’s take some time to get our bearings around the Universe. • We live in the Milky Way. ...
CLASSICAL KUIPER BELT OBJECTS (CKBOs)
... The 35 AU perihelion distances allow Neptune to exert weak dynamical control over the SKBOs. On billion year timescales, perihelic perturbations by Neptune will change the orbit parameters from their present values. The SKBOs form a fat doughnut around the Classical and Resonant KBOs, extending to l ...
... The 35 AU perihelion distances allow Neptune to exert weak dynamical control over the SKBOs. On billion year timescales, perihelic perturbations by Neptune will change the orbit parameters from their present values. The SKBOs form a fat doughnut around the Classical and Resonant KBOs, extending to l ...
Temperate Earth-sized planets transiting a nearby ultracool dwarf star
... of their day sides27 (Fig. 2 and Table 1). The main concern regarding localized habitability on tidally locked planets relates to the trapping of atmosphere and/or water on their night sides26. Nevertheless, the relatively large equilibrium temperatures of TRAPPIST-1b and TRAPPIST-1c would probably ...
... of their day sides27 (Fig. 2 and Table 1). The main concern regarding localized habitability on tidally locked planets relates to the trapping of atmosphere and/or water on their night sides26. Nevertheless, the relatively large equilibrium temperatures of TRAPPIST-1b and TRAPPIST-1c would probably ...
8-4.1 - S2TEM Centers SC
... The stars “come out at night” and are not always present in the sky. (The Sun’s light prevents us from seeing stars during the day.) There are thousands of stars in our solar system. (There is just one star in our solar system – the Sun.) Because the apparent diameter of the Sun in the sky fro ...
... The stars “come out at night” and are not always present in the sky. (The Sun’s light prevents us from seeing stars during the day.) There are thousands of stars in our solar system. (There is just one star in our solar system – the Sun.) Because the apparent diameter of the Sun in the sky fro ...
Jovian Planet Systems
... • What kinds of moons orbit the jovian planets? • Why are Jupiter’s Galilean moons geologically active? • What geological activity do we see on Titan and other moons? • Why are jovian planet moons more geologically active than small rocky planets? ...
... • What kinds of moons orbit the jovian planets? • Why are Jupiter’s Galilean moons geologically active? • What geological activity do we see on Titan and other moons? • Why are jovian planet moons more geologically active than small rocky planets? ...
Planetary accretion in the inner Solar System
... contain tens of Earth masses of rocky and icy material, while the vast expanse of the asteroid belt, between 2 and 4 astronomical units (AU) from the Sun, has only enough stuff to make a planet 1% the mass of Mercury. Just as curiously, 90% of the total mass of the inner Solar System now resides in ...
... contain tens of Earth masses of rocky and icy material, while the vast expanse of the asteroid belt, between 2 and 4 astronomical units (AU) from the Sun, has only enough stuff to make a planet 1% the mass of Mercury. Just as curiously, 90% of the total mass of the inner Solar System now resides in ...
Dwarf planet
![](https://commons.wikimedia.org/wiki/Special:FilePath/PIA19562-Ceres-DwarfPlanet-Dawn-RC3-image19-20150506.jpg?width=300)
A dwarf planet is a planetary-mass object that is neither a planet nor a natural satellite. That is, it is in direct orbit of the Sun, and is massive enough for its shape to be in hydrostatic equilibrium under its own gravity, but has not cleared the neighborhood around its orbit.The term dwarf planet was adopted in 2006 as part of a three-way categorization of bodies orbiting the Sun, brought about by an increase in discoveries of objects farther away from the Sun than Neptune that rivaled Pluto in size, and finally precipitated by the discovery of an even more massive object, Eris. The exclusion of dwarf planets from the roster of planets by the IAU has been both praised and criticized; it was said to be the ""right decision"" by astronomer Mike Brown, who discovered Eris and other new dwarf planets, but has been rejected by Alan Stern, who had coined the term dwarf planet in 1990.The International Astronomical Union (IAU) currently recognizes five dwarf planets: Ceres, Pluto, Haumea, Makemake, and Eris. Brown criticizes this official recognition: ""A reasonable person might think that this means that there are five known objects in the solar system which fit the IAU definition of dwarf planet, but this reasonable person would be nowhere close to correct.""It is suspected that another hundred or so known objects in the Solar System are dwarf planets. Estimates are that up to 200 dwarf planets may be found when the entire region known as the Kuiper belt is explored, and that the number may exceed 10,000 when objects scattered outside the Kuiper belt are considered. Individual astronomers recognize several of these, and in August 2011 Mike Brown published a list of 390 candidate objects, ranging from ""nearly certain"" to ""possible"" dwarf planets. Brown currently identifies eleven known objects – the five accepted by the IAU plus 2007 OR10, Quaoar, Sedna, Orcus, 2002 MS4 and Salacia – as ""virtually certain"", with another dozen highly likely. Stern states that there are more than a dozen known dwarf planets.However, only two of these bodies, Ceres and Pluto, have been observed in enough detail to demonstrate that they actually fit the IAU's definition. The IAU accepted Eris as a dwarf planet because it is more massive than Pluto. They subsequently decided that unnamed trans-Neptunian objects with an absolute magnitude brighter than +1 (and hence a diameter of ≥838 km assuming a geometric albedo of ≤1) are to be named under the assumption that they are dwarf planets. The only two such objects known at the time, Makemake and Haumea, went through this naming procedure and were declared to be dwarf planets. The question of whether other likely objects are dwarf planets has never been addressed by the IAU. The classification of bodies in other planetary systems with the characteristics of dwarf planets has not been addressed.