Advances in exoplanet science from Kepler
... Kepler planets have radii, Rp , intermediate between those of Earth and Neptune (1 – 3.8 R⊕ , where R⊕ = 6371 km is the Earth’s radius); planets in this size range are missing from our Solar System. These planets have a wide range of densities (Batalha et al. 2011; Lissauer et al. 2011a; Doyle et al ...
... Kepler planets have radii, Rp , intermediate between those of Earth and Neptune (1 – 3.8 R⊕ , where R⊕ = 6371 km is the Earth’s radius); planets in this size range are missing from our Solar System. These planets have a wide range of densities (Batalha et al. 2011; Lissauer et al. 2011a; Doyle et al ...
Earth flies between sun and Jupiter on June 5
... which is liquid in the interior and gaseous further out. The atmosphere we see is just the very top of this deep layer. Water, carbon dioxide, methane and other simple molecules are also present in tiny amounts. Recent experiments have shown that hydrogen does not change phase suddenly. Therefore th ...
... which is liquid in the interior and gaseous further out. The atmosphere we see is just the very top of this deep layer. Water, carbon dioxide, methane and other simple molecules are also present in tiny amounts. Recent experiments have shown that hydrogen does not change phase suddenly. Therefore th ...
the gravitational force
... crucially on the masses of the interacting particles. Indeed, since the gravitational constant G is quite small, the gravitational force is almost immeasurably small when both interacting particles are common objects such as baseballs or cars (which have masses roughly between 1 kg and 1000 kg). Fur ...
... crucially on the masses of the interacting particles. Indeed, since the gravitational constant G is quite small, the gravitational force is almost immeasurably small when both interacting particles are common objects such as baseballs or cars (which have masses roughly between 1 kg and 1000 kg). Fur ...
The Night Sky
... lower right down toward it. Jupiter shines very high far to Arcturus's upper right. Arcturus forms the pointy end of a long, narrow kite pattern formed by the brightest stars of Bootes, the Cowherd. The kite is currently lying on its side to Arcturus's left. The head of the kite, at the far left, is ...
... lower right down toward it. Jupiter shines very high far to Arcturus's upper right. Arcturus forms the pointy end of a long, narrow kite pattern formed by the brightest stars of Bootes, the Cowherd. The kite is currently lying on its side to Arcturus's left. The head of the kite, at the far left, is ...
Unit 1 test review and answer key 16
... Ptolemy’s theory of planets moving within wheels attached to circular spheres centred on Earth was very complex and difficult to use. ...
... Ptolemy’s theory of planets moving within wheels attached to circular spheres centred on Earth was very complex and difficult to use. ...
Page 1 - Sciss
... IBEX: Search for the Edge of the Solar System Join scientists who are investigating the boundary between our Solar System and the rest of our galaxy in IBEX: Search for the Edge of the Solar System. Designed for visitors with an appreciation for the challenges of space science and a desire to learn ...
... IBEX: Search for the Edge of the Solar System Join scientists who are investigating the boundary between our Solar System and the rest of our galaxy in IBEX: Search for the Edge of the Solar System. Designed for visitors with an appreciation for the challenges of space science and a desire to learn ...
transit of Venus - Glenn Schneider
... transit for about 30 minutes before sunset, he estimated Venus’s apparent diameter at about one arc minute, three times the diameter Gassendi had measured for Mercury. From Manchester, 25 miles southeast of Much Hoole, Horrocks’s friend William Crabtree used a similar telescope to glimpse Venus in t ...
... transit for about 30 minutes before sunset, he estimated Venus’s apparent diameter at about one arc minute, three times the diameter Gassendi had measured for Mercury. From Manchester, 25 miles southeast of Much Hoole, Horrocks’s friend William Crabtree used a similar telescope to glimpse Venus in t ...
Asteroids, Comets & Meteors Teacher's Guide
... as they fall through Earth’s upper atmosphere. 99.9% of all meteors seen are very small rocks no larger than single grains of sand or even specks of dust. The small particles are often the remains of dust and pebbles released from comets. The 0.1% remaining meteors are often larger and burn much bri ...
... as they fall through Earth’s upper atmosphere. 99.9% of all meteors seen are very small rocks no larger than single grains of sand or even specks of dust. The small particles are often the remains of dust and pebbles released from comets. The 0.1% remaining meteors are often larger and burn much bri ...
Read an Excerpt!
... Eris travels far above and below the plane of the solar system, because the orbit of Eris is tilted 44 degrees to the plane of the Earth’s orbit. Due to the high tilt, the new world will not collide with Pluto, even when the two are the same distance from the Sun. Eris probably once had a normal orb ...
... Eris travels far above and below the plane of the solar system, because the orbit of Eris is tilted 44 degrees to the plane of the Earth’s orbit. Due to the high tilt, the new world will not collide with Pluto, even when the two are the same distance from the Sun. Eris probably once had a normal orb ...
Insights into Bode`s Law
... help us to understand Bode’s Law better. Then we will look into the underlying assumptions which allow Bode’s Law to work correctly, up to a certain extend. Finally, we will identify the factors that Bode’s law had not considered which makes the law flawed and thus seemingly inapplicable. Law of Gra ...
... help us to understand Bode’s Law better. Then we will look into the underlying assumptions which allow Bode’s Law to work correctly, up to a certain extend. Finally, we will identify the factors that Bode’s law had not considered which makes the law flawed and thus seemingly inapplicable. Law of Gra ...
Basic principles of celestial navigation
... point P of unknown latitude % and longitude &. The celestial sphere rotates westward from the observer’s point of view at an angular rate such that the vernal equinox transits !passes through" the observer’s meridian from east to west at intervals of 23 hour, 56 minute, 4 second of mean solar time, ...
... point P of unknown latitude % and longitude &. The celestial sphere rotates westward from the observer’s point of view at an angular rate such that the vernal equinox transits !passes through" the observer’s meridian from east to west at intervals of 23 hour, 56 minute, 4 second of mean solar time, ...
CENTRAL TEXAS COLLEGE
... given in those cases where the student has completed the majority of the course work, but because of personal illness, death in the immediate family, or military orders, the student is unable to complete the requirements for a course...” Prior approval from the instructor is required before the grad ...
... given in those cases where the student has completed the majority of the course work, but because of personal illness, death in the immediate family, or military orders, the student is unable to complete the requirements for a course...” Prior approval from the instructor is required before the grad ...
Principal Features of the Sky - Beck-Shop
... halves. The chart is a Mercator projection4 of a variant of the equatorial system, one way of viewing the celestial sphere independently of the observer. Figure B.2 provides views of the regions around the north and south celestial poles. Star charts, regardless of the superimposed constellation and ...
... halves. The chart is a Mercator projection4 of a variant of the equatorial system, one way of viewing the celestial sphere independently of the observer. Figure B.2 provides views of the regions around the north and south celestial poles. Star charts, regardless of the superimposed constellation and ...
Astronomy - Mr. Hill`s Science Website
... our Moon's gravity, the tilt would vary dramatically, like that of a wobbling top, resulting in rapidly changing seasons that would make it difficult for life to exist on Earth. Planetary scientists think that our relatively big Moon, and the axis tilt itself, were created by enormous collisions Ear ...
... our Moon's gravity, the tilt would vary dramatically, like that of a wobbling top, resulting in rapidly changing seasons that would make it difficult for life to exist on Earth. Planetary scientists think that our relatively big Moon, and the axis tilt itself, were created by enormous collisions Ear ...
Principal Features of the Sky
... halves. The chart is a Mercator projection4 of a variant of the equatorial system, one way of viewing the celestial sphere independently of the observer. Figure B.2 provides views of the regions around the north and south celestial poles. Star charts, regardless of the superimposed constellation and ...
... halves. The chart is a Mercator projection4 of a variant of the equatorial system, one way of viewing the celestial sphere independently of the observer. Figure B.2 provides views of the regions around the north and south celestial poles. Star charts, regardless of the superimposed constellation and ...
THE ROTATION OF THE SUN
... As Venus cross the meridian later than the Sun, it is observed as an “evening star” with an eastern elongation. Complete the item “elongation” in the first line of Table 1. B) Positioning Venus according to its elongation angle and its phase. During the measurements, always be accurate! On the floor ...
... As Venus cross the meridian later than the Sun, it is observed as an “evening star” with an eastern elongation. Complete the item “elongation” in the first line of Table 1. B) Positioning Venus according to its elongation angle and its phase. During the measurements, always be accurate! On the floor ...
Rare Earth hypothesis
In planetary astronomy and astrobiology, the Rare Earth Hypothesis argues that the origin of life and the evolution of biological complexity such as sexually reproducing, multicellular organisms on Earth (and, subsequently, human intelligence) required an improbable combination of astrophysical and geological events and circumstances. The hypothesis argues that complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare. The term ""Rare Earth"" originates from Rare Earth: Why Complex Life Is Uncommon in the Universe (2000), a book by Peter Ward, a geologist and paleontologist, and Donald E. Brownlee, an astronomer and astrobiologist, both faculty members at the University of Washington.An alternative view point was argued by Carl Sagan and Frank Drake, among others. It holds that Earth is a typical rocky planet in a typical planetary system, located in a non-exceptional region of a common barred-spiral galaxy. Given the principle of mediocrity (also called the Copernican principle), it is probable that the universe teems with complex life. Ward and Brownlee argue to the contrary: that planets, planetary systems, and galactic regions that are as friendly to complex life as are the Earth, the Solar System, and our region of the Milky Way are very rare.