Part 1
... (C) magnetic fields bring iron up from the core which blocks the light. (D) local magnetic fields reduce convection and the heat reaching the surface. (E) parts of the Sun are burnt crisp from uneven heat. 14. If the Sun turned into a black hole but kept exactly the same mass it has now, the Earth w ...
... (C) magnetic fields bring iron up from the core which blocks the light. (D) local magnetic fields reduce convection and the heat reaching the surface. (E) parts of the Sun are burnt crisp from uneven heat. 14. If the Sun turned into a black hole but kept exactly the same mass it has now, the Earth w ...
workbook - teacher version
... Based on the position of Earth in the diagram, how long would it take Earth to pass Jupiter? a. Less than one year b. Every year c. More than one year NOTE: It takes Earth one year to revolve completely around the Sun, and it takes Jupiter 12 years because it is much farther from the Sun (see previo ...
... Based on the position of Earth in the diagram, how long would it take Earth to pass Jupiter? a. Less than one year b. Every year c. More than one year NOTE: It takes Earth one year to revolve completely around the Sun, and it takes Jupiter 12 years because it is much farther from the Sun (see previo ...
The Sun: center of the Solar System
... million years ago, similar in size to Chicxulub) • Barringer Crater (Arizona; one of the bestpreserved on Earth) • Ries and Steinholm (Germany; same age, probably binary asteroid) ...
... million years ago, similar in size to Chicxulub) • Barringer Crater (Arizona; one of the bestpreserved on Earth) • Ries and Steinholm (Germany; same age, probably binary asteroid) ...
Astronomy Merit Badge Workshop
... see in the night sky. Pick out 10 constellations (at least 4 of which are in the Zodiac) and note them below. Alternatively, do an internet search for constellations visible from your area at this time of year, pick out 10, and note them below. *Do an Internet search for “Star Finder” of “Planispher ...
... see in the night sky. Pick out 10 constellations (at least 4 of which are in the Zodiac) and note them below. Alternatively, do an internet search for constellations visible from your area at this time of year, pick out 10, and note them below. *Do an Internet search for “Star Finder” of “Planispher ...
The Kuiper Belt
... On March 15, 2004, a team of astronomers (including Mike Brown, Chad Trujillo, and David Rabinowitz) announced the NASA-sponsored discovery of a very large planetary body (originally designated 2003 VB12) in one of the most distant planetary orbits yet discovered within the Solar System. Confirmed b ...
... On March 15, 2004, a team of astronomers (including Mike Brown, Chad Trujillo, and David Rabinowitz) announced the NASA-sponsored discovery of a very large planetary body (originally designated 2003 VB12) in one of the most distant planetary orbits yet discovered within the Solar System. Confirmed b ...
Comets, Asteroids, and Meteors
... Asteroids • Not all asteroids are located in the asteroids belt and can pass near Earth • Jupiter’s gravity kept the asteroids from forming a planet • Some asteroids orbit just before and after Jupiter • Largest asteroid, Ceres, is 580 mi across but most are less than a few miles across ...
... Asteroids • Not all asteroids are located in the asteroids belt and can pass near Earth • Jupiter’s gravity kept the asteroids from forming a planet • Some asteroids orbit just before and after Jupiter • Largest asteroid, Ceres, is 580 mi across but most are less than a few miles across ...
Reconnaissance of the TRAPPIST-1 exoplanet system in the Lyman
... We used the Space Telescope Imaging Spectrograph (STIS) instrument onboard the HST to observe TRAPPIST-1 at FUV wavelengths (G140M grating at 1222 Å). Four HST orbits were obtained in 2016 in the frame of the MidCycle Program 14493 (PI: Bourrier), with exposure time of approximately 35 min. We obse ...
... We used the Space Telescope Imaging Spectrograph (STIS) instrument onboard the HST to observe TRAPPIST-1 at FUV wavelengths (G140M grating at 1222 Å). Four HST orbits were obtained in 2016 in the frame of the MidCycle Program 14493 (PI: Bourrier), with exposure time of approximately 35 min. We obse ...
Planet Type Information
... These are a very restricted worlds, where tidal heating is weak, but enough to keep a thin subsurface oceanic layer. Life, if present at all, is very restricted as well, due to a predisposition of extreme salinity in the water layer. These Europans are the ultimate in this type of world. The planet ...
... These are a very restricted worlds, where tidal heating is weak, but enough to keep a thin subsurface oceanic layer. Life, if present at all, is very restricted as well, due to a predisposition of extreme salinity in the water layer. These Europans are the ultimate in this type of world. The planet ...
Astrophysics
... Φ is the number of photons emitted by a star per second which are capable of photoionizing neutral hydrogen (λ < 912Å), while αn2 is the number of recombinations per second per cm3 . If each photon results in a photoionization and the rate of photoionization equals the rate of recombination, find a ...
... Φ is the number of photons emitted by a star per second which are capable of photoionizing neutral hydrogen (λ < 912Å), while αn2 is the number of recombinations per second per cm3 . If each photon results in a photoionization and the rate of photoionization equals the rate of recombination, find a ...
99942 Apophis Asteroid - Lawrencehallofscience
... How close will the asteroid get to Earth? To calculate this, we need two of the orbital elements: a, the semi-major axis of the ellipse, which measures how far away the asteroid is from the Sun on average (for a perfect circle, the semi-major axis is equal to the radius), and e, the eccentricity, wh ...
... How close will the asteroid get to Earth? To calculate this, we need two of the orbital elements: a, the semi-major axis of the ellipse, which measures how far away the asteroid is from the Sun on average (for a perfect circle, the semi-major axis is equal to the radius), and e, the eccentricity, wh ...
Events - Temecula Valley Astronomers
... methane and ammonia in its atmosphere? Plate tectonics is the leading guess and I say guess because no one really knows for sure why we have an atmosphere that is 78% nitrogen and the other rocky planets have only a trace of the stuff. If plate tectonics and the cooking of minerals deep underground ...
... methane and ammonia in its atmosphere? Plate tectonics is the leading guess and I say guess because no one really knows for sure why we have an atmosphere that is 78% nitrogen and the other rocky planets have only a trace of the stuff. If plate tectonics and the cooking of minerals deep underground ...
The Night Sky This Month - Usk Astronomical Society
... Some say that the constellation of the Bull was depicted in caves by humans tens of thousands of years ago to the extent that even the Pleiades were shown. What is certain is that Taurus the Bull, with the Scorpion and the Lion, was portrayed over 6000 years ago in the Euphrates Valley, in ancient M ...
... Some say that the constellation of the Bull was depicted in caves by humans tens of thousands of years ago to the extent that even the Pleiades were shown. What is certain is that Taurus the Bull, with the Scorpion and the Lion, was portrayed over 6000 years ago in the Euphrates Valley, in ancient M ...
Sirius Astronomer - Orange County Astronomers
... are hotter, so the patches are known as “hot spots”. Exactly how these clearings form and why they’re only found near the planet’s equator have long been mysteries. Using archived images from Cassini when it passed Jupiter on its way to Saturn, scientists have studied the hot spots and determined th ...
... are hotter, so the patches are known as “hot spots”. Exactly how these clearings form and why they’re only found near the planet’s equator have long been mysteries. Using archived images from Cassini when it passed Jupiter on its way to Saturn, scientists have studied the hot spots and determined th ...
Transit of Venus
... measuring the dip in Sun's brightness. The robust models will then help eliminate the false detection signals that may be arising due to the appearance of star-spots or intrinsic variability of the host star. • To deduce the composition of exoplanet atmosphere by comparing it to the spectroscopic st ...
... measuring the dip in Sun's brightness. The robust models will then help eliminate the false detection signals that may be arising due to the appearance of star-spots or intrinsic variability of the host star. • To deduce the composition of exoplanet atmosphere by comparing it to the spectroscopic st ...
Chapter 10
... • Orbits of Near-Earth Objects (NEOs) carry them into the inner Solar System and across the Earth’s orbit – More than 5000 have been found, which represents an Earth collision probability of once every 10,000 years – They may be “dead” comets, shifted into their orbits by Jupiter and devoid of surfa ...
... • Orbits of Near-Earth Objects (NEOs) carry them into the inner Solar System and across the Earth’s orbit – More than 5000 have been found, which represents an Earth collision probability of once every 10,000 years – They may be “dead” comets, shifted into their orbits by Jupiter and devoid of surfa ...
Astronomy that falls from the sky
... and remains long after the (then smaller) comet has orbited around the Sun and gone back out of sight into deep space. ...
... and remains long after the (then smaller) comet has orbited around the Sun and gone back out of sight into deep space. ...
Sample Final - IUPUI Physics
... D) a white dwarf collapses upon itself 40) HR diagrams have to compare stars which have brightnesses which differ by factors of tens of thousands. Therefore, to handle this, what type of chart is the HR diagram? A) linear plot B) sky plot C) 3-D plot D) log-log plot 41) What determines the absolute ...
... D) a white dwarf collapses upon itself 40) HR diagrams have to compare stars which have brightnesses which differ by factors of tens of thousands. Therefore, to handle this, what type of chart is the HR diagram? A) linear plot B) sky plot C) 3-D plot D) log-log plot 41) What determines the absolute ...
Branches of Astronomy
... Belts - Dark bands around certain planets, like Jupiter. Black hole - A region of space that nothing, not even light, can escape from. Coma - The region around the head of a comet. Comet - A object orbiting the sun that when it gets close to the sun shows a coma and may show a tail. Constellation - ...
... Belts - Dark bands around certain planets, like Jupiter. Black hole - A region of space that nothing, not even light, can escape from. Coma - The region around the head of a comet. Comet - A object orbiting the sun that when it gets close to the sun shows a coma and may show a tail. Constellation - ...
Orbital and Physical Characteristics of Extrasolar Planets Systems
... To the very time of the detection of the first extrasolar planet system, our concept was based only upon the study of the Solar system structure. As is well known, the later has been formed around a main sequence star (The Sun) of late spectral type-G2V. According to the statistical analysis of the ...
... To the very time of the detection of the first extrasolar planet system, our concept was based only upon the study of the Solar system structure. As is well known, the later has been formed around a main sequence star (The Sun) of late spectral type-G2V. According to the statistical analysis of the ...
Solar System Formation
... gravitationally unstable (and also reduce drag rate by ~40% for 1m objects), but it is not clear if the vortices last long enough for these effects to take place, or if the studies are only relevant to a narrow range of particle ...
... gravitationally unstable (and also reduce drag rate by ~40% for 1m objects), but it is not clear if the vortices last long enough for these effects to take place, or if the studies are only relevant to a narrow range of particle ...
PPT
... • Best estimate: “frost line” was between current orbits of Mars and Jupiter • Outside “frost line”: rocky cores could attract icy solid material fast enough that planets were already quite massive before early solar wind blew gas nebula away ...
... • Best estimate: “frost line” was between current orbits of Mars and Jupiter • Outside “frost line”: rocky cores could attract icy solid material fast enough that planets were already quite massive before early solar wind blew gas nebula away ...
Finding habitable earths around white dwarfs with a robotic
... There are significant deviations from the Mestel cooling law due to a range of physical effects, most importantly for cool white dwarfs are crystallization and gravitational separation. So instead of equation 1, I used the cooling models computed by Bergeron et al.9 to compute the white dwarf lumino ...
... There are significant deviations from the Mestel cooling law due to a range of physical effects, most importantly for cool white dwarfs are crystallization and gravitational separation. So instead of equation 1, I used the cooling models computed by Bergeron et al.9 to compute the white dwarf lumino ...
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.