The Prague Astronomical Clock
... The zodiac annulus at the center of the clock, marked with the twelve symbols of the Zodiac, does not rotate about its center but instead is offset. The offset is chosen so that the sunburst, constrained to be on but not attached to the Zodiac annulus, shows the correct declination and is in the pro ...
... The zodiac annulus at the center of the clock, marked with the twelve symbols of the Zodiac, does not rotate about its center but instead is offset. The offset is chosen so that the sunburst, constrained to be on but not attached to the Zodiac annulus, shows the correct declination and is in the pro ...
Power Point Presentation
... Disk of gas rotates and fragments around dust nuclei– each fragment spins faster as it collapses (to conserve angular momentum) Accretion and collisions build up the mass of the fragments into planetesimals Planetesimals coalesce to form larger bodies ...
... Disk of gas rotates and fragments around dust nuclei– each fragment spins faster as it collapses (to conserve angular momentum) Accretion and collisions build up the mass of the fragments into planetesimals Planetesimals coalesce to form larger bodies ...
Comets - Sierra College Astronomy Home Page
... • There are two basic types of meteorites: – Primitive: simple mixtures of rock and metal, sometimes also containing carbon compounds and small amounts of water – Processed: these appear to have undergone differentiation and have a core/mantle/crust structure. Some are made mostly of iron, suggestin ...
... • There are two basic types of meteorites: – Primitive: simple mixtures of rock and metal, sometimes also containing carbon compounds and small amounts of water – Processed: these appear to have undergone differentiation and have a core/mantle/crust structure. Some are made mostly of iron, suggestin ...
Galaxies
... • Extends 50,000 light years beyond the central bulge • Forms spiral arms that contain a lot of gas and dust • Population I stars are found in the spiral arms – these are young O and B main-sequence stars – they are often found in open clusters ...
... • Extends 50,000 light years beyond the central bulge • Forms spiral arms that contain a lot of gas and dust • Population I stars are found in the spiral arms – these are young O and B main-sequence stars – they are often found in open clusters ...
Saturn! - Delapre Blog
... distance from the Sun is 1.429 billion Km. Saturn is also the 6th planet away from the Sun. Its the second largest planet. ...
... distance from the Sun is 1.429 billion Km. Saturn is also the 6th planet away from the Sun. Its the second largest planet. ...
Celestial Highlights for October and early November 2015 During
... order of brightness Venus, Jupiter, and Mars, form a trio, appearing within a 5-degree field of view. Binoculars magnifying up to about 10-power will fit the trio in on these eight mornings. Binoculars of lower magnification, such as 7X, will fit them in for a longer interval, Oct. 17-Nov. 2 if they ...
... order of brightness Venus, Jupiter, and Mars, form a trio, appearing within a 5-degree field of view. Binoculars magnifying up to about 10-power will fit the trio in on these eight mornings. Binoculars of lower magnification, such as 7X, will fit them in for a longer interval, Oct. 17-Nov. 2 if they ...
Could Planets orbiting Red Dwarf stars support Oxygenic
... - Although most stars orbit each other in groups of two or three, planets orbiting one or more stars may have strange, but not life impossible climates (2 or three Suns). - RDs are long lived – an apparent requirement for the evolution of complex life forms. - Although early RD star life is characte ...
... - Although most stars orbit each other in groups of two or three, planets orbiting one or more stars may have strange, but not life impossible climates (2 or three Suns). - RDs are long lived – an apparent requirement for the evolution of complex life forms. - Although early RD star life is characte ...
Assessing the massive young Sun hypothesis to solve the warm
... For Mars, one long standing problem with solving the faint young sun paradox with a dense CO2 atmosphere is that models predict that the CO2 will begin to condense out as a cloud layer at the required atmospheric pressures, thereby increasing the global albedo and off-setting the warming greenhouse ...
... For Mars, one long standing problem with solving the faint young sun paradox with a dense CO2 atmosphere is that models predict that the CO2 will begin to condense out as a cloud layer at the required atmospheric pressures, thereby increasing the global albedo and off-setting the warming greenhouse ...
Stellar Structure and Evolution I
... – Chemical and gravitational energy sources could not explain how the Sun could sustain its luminosity for more than about 25 million years ...
... – Chemical and gravitational energy sources could not explain how the Sun could sustain its luminosity for more than about 25 million years ...
28 The solar system object in the photograph below is 56 kilometers
... 53 The photograph below shows an impact crater approximately 1 mile wide located in Diablo Canyon, Arizona. Describe the event that produced this crater. [1] Barringer Crater, Arizona, U.S.A. (photo courtesy of NASA) ...
... 53 The photograph below shows an impact crater approximately 1 mile wide located in Diablo Canyon, Arizona. Describe the event that produced this crater. [1] Barringer Crater, Arizona, U.S.A. (photo courtesy of NASA) ...
AST301.Ch22.NeutGammBH - University of Texas Astronomy
... because pulsars should slow down and fade in millions of years, while all globular clusters are more than 10 billion years old!) So very old. Interpretation: Neutron star spun up by accretion from binary companion (closely related to x-ray bursters, which may be on their way to becoming millisecond ...
... because pulsars should slow down and fade in millions of years, while all globular clusters are more than 10 billion years old!) So very old. Interpretation: Neutron star spun up by accretion from binary companion (closely related to x-ray bursters, which may be on their way to becoming millisecond ...
Impact Age Dating ASTRO 202 Lecture Thursday, February 14, 2008
... absolute age scale for the Moon can be extrapolated to a wide variety of Solar System surfaces -Controversial issues such as the existence of the late heavy bombardment and secondary cratering need to be resolved to allow for more accurate absolute dating of surfaces in our Solar System System ...
... absolute age scale for the Moon can be extrapolated to a wide variety of Solar System surfaces -Controversial issues such as the existence of the late heavy bombardment and secondary cratering need to be resolved to allow for more accurate absolute dating of surfaces in our Solar System System ...
AP HW 7
... safely round it regardless of the condition of their tires? Should the heavy truck go slower than the lighter car? (b) As the car and truck round the curve at 65.0 mi/h find the normal force on each one due to the highway surface. (210, 1.18x104 N and 2.36x104 N) ...
... safely round it regardless of the condition of their tires? Should the heavy truck go slower than the lighter car? (b) As the car and truck round the curve at 65.0 mi/h find the normal force on each one due to the highway surface. (210, 1.18x104 N and 2.36x104 N) ...
New Worlds on the Horizon: Earth-Sized Planets Close to Other Stars.
... Mercury orbits only 0.38 AU from the Sun, but Earth-mass planets could exist on even closer orbits around other stars. The theory of in situ formation begins with a disk of gas and kmsized bodies (planetesimals); the latter accrete into ~100 Moon- to Mars-sized protoplanets in about 1 million years; ...
... Mercury orbits only 0.38 AU from the Sun, but Earth-mass planets could exist on even closer orbits around other stars. The theory of in situ formation begins with a disk of gas and kmsized bodies (planetesimals); the latter accrete into ~100 Moon- to Mars-sized protoplanets in about 1 million years; ...
April 10th
... • Hot core ionizes the escaping atmosphere • Colors come from a mix of emission lines such as oxygen (green), nitrogen (red), and hydrogen ...
... • Hot core ionizes the escaping atmosphere • Colors come from a mix of emission lines such as oxygen (green), nitrogen (red), and hydrogen ...
Earth Science Teaching Curriculum
... however, have shown that Mars is a complex member of the solar system and holds many mysteries yet to be solved. Mars is a rocky body about half the size of Earth. As with the other terrestrial planets - Mercury, Venus, and Earth - the surface of Mars has been altered by volcanism, impacts, crustal ...
... however, have shown that Mars is a complex member of the solar system and holds many mysteries yet to be solved. Mars is a rocky body about half the size of Earth. As with the other terrestrial planets - Mercury, Venus, and Earth - the surface of Mars has been altered by volcanism, impacts, crustal ...
Earth Science Chap.2 Sect. 2
... stars. The axis has not always pointed toward the North Star and will not in the distant future. Precession: a circular motion of the earth’s axis which causes the change relative to distant stars. Caused by forces acting on a spinning body. In the earth’s case, it is the gravitational pull exerted ...
... stars. The axis has not always pointed toward the North Star and will not in the distant future. Precession: a circular motion of the earth’s axis which causes the change relative to distant stars. Caused by forces acting on a spinning body. In the earth’s case, it is the gravitational pull exerted ...
Use Example problem 8-2 to solve practice
... inner solar system, it has been observed by astronomers since at least 240 BC, but it was not recognized as a periodic comet until the eighteenth century when its orbit was computed by Edmond Halley, after whom the comet is now named. Halley's Comet last appeared in the inner Solar System in 1986, a ...
... inner solar system, it has been observed by astronomers since at least 240 BC, but it was not recognized as a periodic comet until the eighteenth century when its orbit was computed by Edmond Halley, after whom the comet is now named. Halley's Comet last appeared in the inner Solar System in 1986, a ...
Stars and Galaxies
... And then there’s M31, the Andromeda galaxy — the most distant object that’s readily visible to human eyes. This great amalgamation of stars stands almost directly overhead late this evening. When viewed from a dark skywatching location, far from city lights, it looks like a faint, fuzzy blob. But th ...
... And then there’s M31, the Andromeda galaxy — the most distant object that’s readily visible to human eyes. This great amalgamation of stars stands almost directly overhead late this evening. When viewed from a dark skywatching location, far from city lights, it looks like a faint, fuzzy blob. But th ...
Week 9 Concept Summary - UC Berkeley Astronomy w
... intrinsic luminosity and the mass: L ∝ M 4 , and the main sequence lifetime goes as t ∝ M −3 . Knowing the color of a main sequence star tells you the temperature, and uminosity, which in turn tells you the radius of the star and how far away it is. 3. Stellar Birth: Stars form out of giant gas clou ...
... intrinsic luminosity and the mass: L ∝ M 4 , and the main sequence lifetime goes as t ∝ M −3 . Knowing the color of a main sequence star tells you the temperature, and uminosity, which in turn tells you the radius of the star and how far away it is. 3. Stellar Birth: Stars form out of giant gas clou ...
ppt document - FacStaff Home Page for CBU
... c-2) Nuclear fusion. This energy comes from combining light elements into slightly heavier elements (like hydogen into helium, or helium into carbon). This is the source of the extra energy in a hydrogen bomb. We do NOT have any fusion reactors, but we are working on them. The main problem is that i ...
... c-2) Nuclear fusion. This energy comes from combining light elements into slightly heavier elements (like hydogen into helium, or helium into carbon). This is the source of the extra energy in a hydrogen bomb. We do NOT have any fusion reactors, but we are working on them. The main problem is that i ...
Formation and evolution of the Solar System
The formation of the Solar System began 4.6 billion years ago with the gravitational collapse of a small part of a giant molecular cloud. Most of the collapsing mass collected in the center, forming the Sun, while the rest flattened into a protoplanetary disk out of which the planets, moons, asteroids, and other small Solar System bodies formed.This widely accepted model, known as the nebular hypothesis, was first developed in the 18th century by Emanuel Swedenborg, Immanuel Kant, and Pierre-Simon Laplace. Its subsequent development has interwoven a variety of scientific disciplines including astronomy, physics, geology, and planetary science. Since the dawn of the space age in the 1950s and the discovery of extrasolar planets in the 1990s, the model has been both challenged and refined to account for new observations.The Solar System has evolved considerably since its initial formation. Many moons have formed from circling discs of gas and dust around their parent planets, while other moons are thought to have formed independently and later been captured by their planets. Still others, such as the Moon, may be the result of giant collisions. Collisions between bodies have occurred continually up to the present day and have been central to the evolution of the Solar System. The positions of the planets often shifted due to gravitational interactions. This planetary migration is now thought to have been responsible for much of the Solar System's early evolution.In roughly 5 billion years, the Sun will cool and expand outward many times its current diameter (becoming a red giant), before casting off its outer layers as a planetary nebula and leaving behind a stellar remnant known as a white dwarf. In the far distant future, the gravity of passing stars will gradually reduce the Sun's retinue of planets. Some planets will be destroyed, others ejected into interstellar space. Ultimately, over the course of tens of billions of years, it is likely that the Sun will be left with none of the original bodies in orbit around it.