August 2014 - Hermanus Astronomy
... comet’s tail in ultraviolet light with a wavelength of 121.6 nanometers. This light is emitted from the solar disk and reflected by the dust particles into space. The SUMER images show a slightly curved, pointed tail with a length of at least 240,000 km. No signs of a particularly bright area were f ...
... comet’s tail in ultraviolet light with a wavelength of 121.6 nanometers. This light is emitted from the solar disk and reflected by the dust particles into space. The SUMER images show a slightly curved, pointed tail with a length of at least 240,000 km. No signs of a particularly bright area were f ...
SCI112: Earth Science
... Unit 5: Earth’s Atmosphere The structure of our atmosphere has a profound effect on earth and its living things. In this unit, students first develop a firm basis for understanding how the sun’s energy is the basis for many of the characteristics of our atmosphere. Knowledge of how the sun’s energy ...
... Unit 5: Earth’s Atmosphere The structure of our atmosphere has a profound effect on earth and its living things. In this unit, students first develop a firm basis for understanding how the sun’s energy is the basis for many of the characteristics of our atmosphere. Knowledge of how the sun’s energy ...
Astrology, calendars and the dating of Christian festivals.
... influence the makeup of our species given the millions of years of influence on our supposed development from primitive life forms. If you think objects in rotation cannot have an effect on us well a very simple experiment can be made. Take a rapidly spinning bicycle wheel between both hands and the ...
... influence the makeup of our species given the millions of years of influence on our supposed development from primitive life forms. If you think objects in rotation cannot have an effect on us well a very simple experiment can be made. Take a rapidly spinning bicycle wheel between both hands and the ...
Presentation
... have such alignment, and the fraction decreases for planets with larger orbits. For a planet orbiting a sun-sized star at 1AU, the probability of a random alignment producing a transit is ...
... have such alignment, and the fraction decreases for planets with larger orbits. For a planet orbiting a sun-sized star at 1AU, the probability of a random alignment producing a transit is ...
Star Evolution
... • Short lived phase of star’s life (tens of thousands of years) • Yet we see thousands so most stars must produce planetary nebulae • Most white dwarfs do not have a planetary nebula ...
... • Short lived phase of star’s life (tens of thousands of years) • Yet we see thousands so most stars must produce planetary nebulae • Most white dwarfs do not have a planetary nebula ...
Lecture 1: Properties of the Solar System Properties of the Solar
... 2. How does the star lose AM and slow down? Solar-type stars all rotate at about the same speed at the Sun. ...
... 2. How does the star lose AM and slow down? Solar-type stars all rotate at about the same speed at the Sun. ...
12-3 Planets and Satellites Types of Orbits
... Within galaxies: needed to explain rotational speed of outer areas Within galaxy clusters: needed to make clusters gravitationally bound ...
... Within galaxies: needed to explain rotational speed of outer areas Within galaxy clusters: needed to make clusters gravitationally bound ...
PowerPoint File
... Measure the distance over which the density of stars significantly falls off with height above, or distance below, the galactic plane. The distance depends on the type of objects considered, but is roughly 100 – 200 parsecs. The galactic plane is much thinner than it is wide. ...
... Measure the distance over which the density of stars significantly falls off with height above, or distance below, the galactic plane. The distance depends on the type of objects considered, but is roughly 100 – 200 parsecs. The galactic plane is much thinner than it is wide. ...
The search for Earth-like planets - Creation Ministries International
... moved prograde (orbiting the same direction as the star spins) and formed a few AU from the star, then migrated in. It is the disk around the star that is understood to cause this planet migration, but a disk cannot cause a planet to change the inclination of its orbit by a 150º angle. To explain th ...
... moved prograde (orbiting the same direction as the star spins) and formed a few AU from the star, then migrated in. It is the disk around the star that is understood to cause this planet migration, but a disk cannot cause a planet to change the inclination of its orbit by a 150º angle. To explain th ...
1. absolute brightness -
... 26. red dwarf • small, cool, faint star at lower-right end of the main sequence of an HR diagram • the most plentiful stars in the universe ...
... 26. red dwarf • small, cool, faint star at lower-right end of the main sequence of an HR diagram • the most plentiful stars in the universe ...
Discovering Asteroids Using
... interplanetary rock and metal •that comets are bodies containing large amounts of ice and rocky debris •space debris that fall through the Earth’ Earth’ s atmosphere •that impacts from space 250 million and 65 million years ago have affected past life on Earth ...
... interplanetary rock and metal •that comets are bodies containing large amounts of ice and rocky debris •space debris that fall through the Earth’ Earth’ s atmosphere •that impacts from space 250 million and 65 million years ago have affected past life on Earth ...
The Motion of the Moon and Planets
... Why don’t we have an eclipse at every new and full moon? – The Moon’s orbit is tilted 5° to ecliptic plane… – So we have about two eclipse seasons each year, with a lunar eclipse at new moon and solar eclipse at full moon. ...
... Why don’t we have an eclipse at every new and full moon? – The Moon’s orbit is tilted 5° to ecliptic plane… – So we have about two eclipse seasons each year, with a lunar eclipse at new moon and solar eclipse at full moon. ...
8th Grade Earth Science Objectives
... Students will use the knowledge they have gained about meteorology to construct a weather map on posterboard. They will come up with a reasonable forecast for the state they have chosen. They give the forecast as an oral presentation with the weathermap beside them similar to a TV meteorologist. ...
... Students will use the knowledge they have gained about meteorology to construct a weather map on posterboard. They will come up with a reasonable forecast for the state they have chosen. They give the forecast as an oral presentation with the weathermap beside them similar to a TV meteorologist. ...
Stars
... Pulsars are Believed to be Rotating Neutron Stars As a star collapses in a supernova its magnetic field is prevserved, but intensified as it is squeezed into a smaller object. Similarly the neutron star will rotate, as did the original star, but much faster (think about a twirling ice skater). Char ...
... Pulsars are Believed to be Rotating Neutron Stars As a star collapses in a supernova its magnetic field is prevserved, but intensified as it is squeezed into a smaller object. Similarly the neutron star will rotate, as did the original star, but much faster (think about a twirling ice skater). Char ...
Astronomy Jeopardy Astronomy jeopardy
... Star Dust - 500 Points When massively large stars die with a great explosion and such great a force of gravity that anything falling into it, including e-m waves becomes trapped and light cannot ...
... Star Dust - 500 Points When massively large stars die with a great explosion and such great a force of gravity that anything falling into it, including e-m waves becomes trapped and light cannot ...
Document
... b. Explain how the impact of human activities on the can be understood through the analysis of interactions between the four Earth systems. c. Explain ozone depletion in the stratosphere and methods to slow human activities to reduce ozone depletion d. Explain the life cycle of a product from produc ...
... b. Explain how the impact of human activities on the can be understood through the analysis of interactions between the four Earth systems. c. Explain ozone depletion in the stratosphere and methods to slow human activities to reduce ozone depletion d. Explain the life cycle of a product from produc ...
Characteristics of the Sun
... too faint to be seen from Earth. In fact, these dim stars are by far the most common stars in the galaxy. Thus, despite the Sun being in the middle range for all possible types of stars, when considering the total population of stars in the galaxy, the Sun is larger and brighter than most. Like all ...
... too faint to be seen from Earth. In fact, these dim stars are by far the most common stars in the galaxy. Thus, despite the Sun being in the middle range for all possible types of stars, when considering the total population of stars in the galaxy, the Sun is larger and brighter than most. Like all ...
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.