The Habitability of Our Earth and Other Earths: Astrophysical
... detected rocky exoplanets. The inhabited and uninhabited regions on Earth tell us that temperature and the presence of water are the main constraints that can be used in a habitability classification scheme for rocky planets. Our compilation and review of recent exoplanet detections suggests that the ...
... detected rocky exoplanets. The inhabited and uninhabited regions on Earth tell us that temperature and the presence of water are the main constraints that can be used in a habitability classification scheme for rocky planets. Our compilation and review of recent exoplanet detections suggests that the ...
ph507rev1
... parallax accuracy to 0.001” within a few years. Before 1990, fewer than 10,000 stellar parallaxes had been measured (and only 500 known well), but there are about 1012 stars in our Galaxy. Space observations made by the European Space Agency with the Hipparcos mission (1989-1993) accurately determin ...
... parallax accuracy to 0.001” within a few years. Before 1990, fewer than 10,000 stellar parallaxes had been measured (and only 500 known well), but there are about 1012 stars in our Galaxy. Space observations made by the European Space Agency with the Hipparcos mission (1989-1993) accurately determin ...
A Question of Planets - Vanderbilt University
... and had an extremely good time before giving the bike away and heading home. When he returned, Weintraub landed a job teaching astronomy at Santa Monica Community College and discovered that he enjoyed teaching. However, he also decided that he only wanted to do this kind of teaching if he combined ...
... and had an extremely good time before giving the bike away and heading home. When he returned, Weintraub landed a job teaching astronomy at Santa Monica Community College and discovered that he enjoyed teaching. However, he also decided that he only wanted to do this kind of teaching if he combined ...
Didactic guide - Planetario de Pamplona
... to (2) ........... on. So, we landed on one of its moons, (3) ........... . From there we had a wonderful view: the giant (4) ........... with three of its moons on the horizon. ...
... to (2) ........... on. So, we landed on one of its moons, (3) ........... . From there we had a wonderful view: the giant (4) ........... with three of its moons on the horizon. ...
Folie 1
... observed gravitational fields. Each of the four giant planets of our Solar system are believed to consist of a central, dense core and surrounding envelope composed of hydrogen, helium, and small amounts of heavy elements. Inside Jupiter and Saturn, hydrogen, which is in molecular at low pressures, ...
... observed gravitational fields. Each of the four giant planets of our Solar system are believed to consist of a central, dense core and surrounding envelope composed of hydrogen, helium, and small amounts of heavy elements. Inside Jupiter and Saturn, hydrogen, which is in molecular at low pressures, ...
A coupling of the origin of asteroid belt, planetary ring
... constraint of Newton’s gravity. Comets are generally observed to run very eccentric trajectories that cross the orbits of many planets, this in the Newton’s gravitational field corresponds to a variation of orbital energy, but we in practice cannot find a mechanism to maintain this variation. On the ...
... constraint of Newton’s gravity. Comets are generally observed to run very eccentric trajectories that cross the orbits of many planets, this in the Newton’s gravitational field corresponds to a variation of orbital energy, but we in practice cannot find a mechanism to maintain this variation. On the ...
planetary temperatures, albedos, and the greenhouse effect
... Albedo (represented by the symbol A) is the fraction of sunlight falling on a surface that is reflected back into space. (The word albedo comes from the Latin word for "white" - albus.) The albedo represents the average reflectivity over the entire visible surface; hence it differs slightly from the ...
... Albedo (represented by the symbol A) is the fraction of sunlight falling on a surface that is reflected back into space. (The word albedo comes from the Latin word for "white" - albus.) The albedo represents the average reflectivity over the entire visible surface; hence it differs slightly from the ...
Slide 1
... depends on two things, the It is mass of the planet and how far we are from the center of the planet. It’s strong gravitational tug would probably break up a small planet. The difference between the two Is 2.34. ...
... depends on two things, the It is mass of the planet and how far we are from the center of the planet. It’s strong gravitational tug would probably break up a small planet. The difference between the two Is 2.34. ...
Astro Midterm Review Part II: Ch 2
... A) you need an array, like the VLA, to detect ANY radio radiation, so it is just not realistic to put an entire array in space. B) radio telescopes are too fragile and expensive to make to put into space. C) radio waves penetrate Earth's atmosphere so there is no need to put one in space. D) there i ...
... A) you need an array, like the VLA, to detect ANY radio radiation, so it is just not realistic to put an entire array in space. B) radio telescopes are too fragile and expensive to make to put into space. C) radio waves penetrate Earth's atmosphere so there is no need to put one in space. D) there i ...
Possible climates on terrestrial exoplanets
... disk, this gap does not seem to exist in exoplanetary systems. As can be seen in Figure 1, the distribution of the radius of planet candidates detected by the Kepler space telescope (Batalha et al. 2013) is quite continuous from 0.7 up to 10 Earth radii, and particularly between 2-4 Earth radii wher ...
... disk, this gap does not seem to exist in exoplanetary systems. As can be seen in Figure 1, the distribution of the radius of planet candidates detected by the Kepler space telescope (Batalha et al. 2013) is quite continuous from 0.7 up to 10 Earth radii, and particularly between 2-4 Earth radii wher ...
Science Planet Project-Uranus update final
... • Uranus is named after the ancient Greek deity of the sky Uranus, the father of Cronus (Saturn) and grandfather of Zeus (Jupiter), which in Latin became "Ūranus". It is the only planet whose name is derived from a figure from Greek mythology rather than Roman mythology. ...
... • Uranus is named after the ancient Greek deity of the sky Uranus, the father of Cronus (Saturn) and grandfather of Zeus (Jupiter), which in Latin became "Ūranus". It is the only planet whose name is derived from a figure from Greek mythology rather than Roman mythology. ...
ASTRONOMY
... For example they have used NASA's Spitzer Space Telescope to study heat from dust around stars like our own but of different ages. Hot dust implies that large rocky bodies are colliding and forming into new planets. Such dust has also been found one to five times the distance from our sun to Earth. ...
... For example they have used NASA's Spitzer Space Telescope to study heat from dust around stars like our own but of different ages. Hot dust implies that large rocky bodies are colliding and forming into new planets. Such dust has also been found one to five times the distance from our sun to Earth. ...
1 Bruna Contro1,*, Rob Wittenmyer1,2,3, Jonti Horner2,3
... first searches for life beyond the Solar system will search for the signs of life like that found on the Earth, and will therefore target the planets deemed most promising as hosts of such life. A wide variety of factors have been proposed that could render a given exoEarth more (or less) habitable ...
... first searches for life beyond the Solar system will search for the signs of life like that found on the Earth, and will therefore target the planets deemed most promising as hosts of such life. A wide variety of factors have been proposed that could render a given exoEarth more (or less) habitable ...
PPT
... – Problem 5, HW 1 is a good starting point for the lab questions – Note typo in Question 3 - “Jupiter” => “Saturn” ...
... – Problem 5, HW 1 is a good starting point for the lab questions – Note typo in Question 3 - “Jupiter” => “Saturn” ...
Workbook IAC
... months. Comets appear to be bright balls with fat tails. They do not fall rapidly in the sky; you would have to watch one for hours or days to see its movement. The center of a comet is a ball of frozen gas, dust, and water. Like planets or moons, comets orbit around the Sun. The comet that causes ...
... months. Comets appear to be bright balls with fat tails. They do not fall rapidly in the sky; you would have to watch one for hours or days to see its movement. The center of a comet is a ball of frozen gas, dust, and water. Like planets or moons, comets orbit around the Sun. The comet that causes ...
The Space Files: The Outer Solar System
... classroom curriculum. To help you schedule your classroom lesson time, the AIMS ...
... classroom curriculum. To help you schedule your classroom lesson time, the AIMS ...
Phase light curves for extrasolar Jupiter and Saturn
... We predict how a remote observer would see the brightness variations of giant planets similar to those in our Solar System as they orbit their central stars. We model the geometry of Jupiter, Saturn and Saturn’s rings for varying orbital and viewing parameters. Broadband scattering properties for th ...
... We predict how a remote observer would see the brightness variations of giant planets similar to those in our Solar System as they orbit their central stars. We model the geometry of Jupiter, Saturn and Saturn’s rings for varying orbital and viewing parameters. Broadband scattering properties for th ...
Astronomy - Troop 179
... c. Make two sketches of the Big Dipper. In one sketch, show the Big Dipper's orientation in the early evening sky. In another sketch, show its position several hours later. In both sketches, show the North Star and the horizon. Record the date and time each sketch was made. d. Explain what we see wh ...
... c. Make two sketches of the Big Dipper. In one sketch, show the Big Dipper's orientation in the early evening sky. In another sketch, show its position several hours later. In both sketches, show the North Star and the horizon. Record the date and time each sketch was made. d. Explain what we see wh ...
Exploring Exploring - MESSENGER Education
... They lived on the island of Crete off the coast of Greece in the Aegean Sea, with their civilization at its height from about 2600 to 1450 BCE. Since the Minoans lived on an island, they became great seafarers and established a trade network across the Mediterranean. Their explorations reached as fa ...
... They lived on the island of Crete off the coast of Greece in the Aegean Sea, with their civilization at its height from about 2600 to 1450 BCE. Since the Minoans lived on an island, they became great seafarers and established a trade network across the Mediterranean. Their explorations reached as fa ...
Catching Planets in Formation with GMT
... Size: ~7 X 7 Deg (cloud core plus extended region) GMACS FOV: 8 x 18’ NIRMOS FOV:5.5 x 5.5’ IMACS limiting magnitude I~21.5, S/N=30, in 4 hr @ R~2000 10-4 Lsun or 3- 5MJ 15% too faint (>21.5) for IMACS ...
... Size: ~7 X 7 Deg (cloud core plus extended region) GMACS FOV: 8 x 18’ NIRMOS FOV:5.5 x 5.5’ IMACS limiting magnitude I~21.5, S/N=30, in 4 hr @ R~2000 10-4 Lsun or 3- 5MJ 15% too faint (>21.5) for IMACS ...
Homework #3, AST 203, Spring 2010
... written down without *any* context whatsoever (e.g., for 1a, writing “164.85 years”, and nothing else), take off 1/3 of the points. One point off per question for inappropriately high precision (which usually means more than 2 significant figures in this homework). However, no points off for calcula ...
... written down without *any* context whatsoever (e.g., for 1a, writing “164.85 years”, and nothing else), take off 1/3 of the points. One point off per question for inappropriately high precision (which usually means more than 2 significant figures in this homework). However, no points off for calcula ...
Darwin – A Mission to Detect, and Search for Life on, Extrasolar
... between star and planet occurs. The baseline mission lasts 5 years and consists of approximately 200 individual target stars. Among these, 25 to 50 planetary systems can be studied spectroscopically, searching for gases such as CO2, H2O, CH4 and O3. Many of the key technologies required for the cons ...
... between star and planet occurs. The baseline mission lasts 5 years and consists of approximately 200 individual target stars. Among these, 25 to 50 planetary systems can be studied spectroscopically, searching for gases such as CO2, H2O, CH4 and O3. Many of the key technologies required for the cons ...
Planets beyond Neptune
Following the discovery of the planet Neptune in 1846, there was considerable speculation that another planet might exist beyond its orbit. The search began in the mid-19th century and culminated at the start of the 20th with Percival Lowell's quest for Planet X. Lowell proposed the Planet X hypothesis to explain apparent discrepancies in the orbits of the giant planets, particularly Uranus and Neptune, speculating that the gravity of a large unseen ninth planet could have perturbed Uranus enough to account for the irregularities.Clyde Tombaugh's discovery of Pluto in 1930 appeared to validate Lowell's hypothesis, and Pluto was officially named the ninth planet. In 1978, Pluto was conclusively determined to be too small for its gravity to affect the giant planets, resulting in a brief search for a tenth planet. The search was largely abandoned in the early 1990s, when a study of measurements made by the Voyager 2 spacecraft found that the irregularities observed in Uranus's orbit were due to a slight overestimation of Neptune's mass. After 1992, the discovery of numerous small icy objects with similar or even wider orbits than Pluto led to a debate over whether Pluto should remain a planet, or whether it and its neighbours should, like the asteroids, be given their own separate classification. Although a number of the larger members of this group were initially described as planets, in 2006 the International Astronomical Union reclassified Pluto and its largest neighbours as dwarf planets, leaving Neptune the farthest known planet in the Solar System.Today, the astronomical community widely agrees that Planet X, as originally envisioned, does not exist, but the concept of Planet X has been revived by a number of astronomers to explain other anomalies observed in the outer Solar System. In popular culture, and even among some astronomers, Planet X has become a stand-in term for any undiscovered planet in the outer Solar System, regardless of its relationship to Lowell's hypothesis. Other trans-Neptunian planets have also been suggested, based on different evidence. As of March 2014, observations with the WISE telescope have ruled out the possibility of a Saturn-sized object out to 10,000 AU, and a Jupiter-sized or larger object out to 26,000 AU.