Stellar Evolution Guiding Questions Stars Evolve
... • Stars are held together in such a cluster by gravity • Occasionally a star moving more rapidly than average will escape from such a cluster • A stellar association is a group of newborn stars that are moving apart so rapidly that their gravitational attraction for one another cannot pull them into ...
... • Stars are held together in such a cluster by gravity • Occasionally a star moving more rapidly than average will escape from such a cluster • A stellar association is a group of newborn stars that are moving apart so rapidly that their gravitational attraction for one another cannot pull them into ...
The Night Sky This Month - Usk Astronomical Society
... This is still a comfortable time of year to observe in the evening, even so, the nights are becoming longer than the days, so chillier nights can be expected. As the Earth moves from the autumnal equinox the days are closing in rapidly. Throughout this month, the ecliptic is at a very shallow angle ...
... This is still a comfortable time of year to observe in the evening, even so, the nights are becoming longer than the days, so chillier nights can be expected. As the Earth moves from the autumnal equinox the days are closing in rapidly. Throughout this month, the ecliptic is at a very shallow angle ...
The formation and habitability of terrestrial planets in the presence of
... state of the protoplanetary disk after the formation of planetary embryos via oligarchic growth (e.g., Kokubo and Ida, 2000), at which time the vast majority of the solid mass is in the form of ∼1000 km-sized “planetary embryos,” which are decoupled from the gas disk. A simulation begins with a disk ...
... state of the protoplanetary disk after the formation of planetary embryos via oligarchic growth (e.g., Kokubo and Ida, 2000), at which time the vast majority of the solid mass is in the form of ∼1000 km-sized “planetary embryos,” which are decoupled from the gas disk. A simulation begins with a disk ...
Observing the Sky
... When the Hubble Space Telescope was deployed in 1990, it became immediately apparent that the telescope was not operating correctly – images transmitted back to Earth were unfortunately blurred. It was discovered that there was a minute flaw in the telescope’s main mirror. The mirror had been ground ...
... When the Hubble Space Telescope was deployed in 1990, it became immediately apparent that the telescope was not operating correctly – images transmitted back to Earth were unfortunately blurred. It was discovered that there was a minute flaw in the telescope’s main mirror. The mirror had been ground ...
Zairamink_Lifecycle of a Star
... Nebula, a star uses all of it’s fuel, after which all that is left is the very hot, very dense core of the star. It cools down over Millions of years, during which all it does is radiate lowenergy X-rays into space. A white dwarf has a low luminosity but have about half the mass of the sun while ...
... Nebula, a star uses all of it’s fuel, after which all that is left is the very hot, very dense core of the star. It cools down over Millions of years, during which all it does is radiate lowenergy X-rays into space. A white dwarf has a low luminosity but have about half the mass of the sun while ...
Presentation
... • Solar systems that we’ve observed around other stars are quite different from ours. – Planets Jupiter-sized and larger have been observed orbiting at Mercury-like distances from their stars. – Do gas giants form closer to the star and then migrate outward, or vice ...
... • Solar systems that we’ve observed around other stars are quite different from ours. – Planets Jupiter-sized and larger have been observed orbiting at Mercury-like distances from their stars. – Do gas giants form closer to the star and then migrate outward, or vice ...
Is there life in space? Activity 4: Habitable Conditions
... years for life to evolve and the star only exists for 10-100 million years, that is probably not enough time for life to evolve. Q. Are you certain about your answer and explanation? A. Student answers will vary. Q. Explain what influenced your certainty rating in the last question. A. Student answe ...
... years for life to evolve and the star only exists for 10-100 million years, that is probably not enough time for life to evolve. Q. Are you certain about your answer and explanation? A. Student answers will vary. Q. Explain what influenced your certainty rating in the last question. A. Student answe ...
Lecture 7: Extrasolar Planets 01/08/2013 update: 725 exoplanets
... where MJ is the mass of Jupiter, should have almost the same radii (i.e. a flat mass-radius relation). -> Giant extrasolar planets transiting solar-type stars produce transits with a depth of around 1%. Close-in planets are strongly irradiated, so their radii can be (detectably) larger. But this hea ...
... where MJ is the mass of Jupiter, should have almost the same radii (i.e. a flat mass-radius relation). -> Giant extrasolar planets transiting solar-type stars produce transits with a depth of around 1%. Close-in planets are strongly irradiated, so their radii can be (detectably) larger. But this hea ...
Jupiter
... The Great Red Spot A large, reddish oval feature called the Great Red Spot is usually visible in Jupiter's southern hemisphere - lying within the planet's south tropical zone. Since the spot was first observed in the mid-17th century, observers have reported many variations in its size and color. At ...
... The Great Red Spot A large, reddish oval feature called the Great Red Spot is usually visible in Jupiter's southern hemisphere - lying within the planet's south tropical zone. Since the spot was first observed in the mid-17th century, observers have reported many variations in its size and color. At ...
June 2016 - Flint River Astronomy Club
... distance, not time. One degree equals 60 arcminutes, and one arc-minute equals 60 arc-seconds. There are 360o in the celestial sphere, so an arcsecond is a very small part of the sky. (To give you an idea of how tiny it is, the two components of the famous double star Zeta Ursae Majoris – we know th ...
... distance, not time. One degree equals 60 arcminutes, and one arc-minute equals 60 arc-seconds. There are 360o in the celestial sphere, so an arcsecond is a very small part of the sky. (To give you an idea of how tiny it is, the two components of the famous double star Zeta Ursae Majoris – we know th ...
Phys133 Sample MidTerm #2 Covers Chs.10
... 4) What happens when a star exhausts its core hydrogen supply? A) It contracts, becoming hotter and brighter. B) Its core contracts, but its outer layers expand and the star becomes bigger but cooler and therefore remains at the same brightness. C) It expands, becoming bigger but dimmer. D) It contr ...
... 4) What happens when a star exhausts its core hydrogen supply? A) It contracts, becoming hotter and brighter. B) Its core contracts, but its outer layers expand and the star becomes bigger but cooler and therefore remains at the same brightness. C) It expands, becoming bigger but dimmer. D) It contr ...
Chapter 40
... • Interstellar dust spread out around space – Allows particles to condense to form star – Similar to cloud formation ...
... • Interstellar dust spread out around space – Allows particles to condense to form star – Similar to cloud formation ...
The Sun - Our Star - Sierra College Astronomy Home Page
... with helium comprising most of the remainder and a few percent consisting of several elements found on Earth. From our knowledge of nuclear fusion, we know the Sun’s core must hold more helium. Calculations show that the hydrogen makes up only 34% of the center. ...
... with helium comprising most of the remainder and a few percent consisting of several elements found on Earth. From our knowledge of nuclear fusion, we know the Sun’s core must hold more helium. Calculations show that the hydrogen makes up only 34% of the center. ...
Earth Science Final Exam Study Guide 2014
... 1. What order are the planets starting at the sun and moving out? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune 2. What planets are the inner planets? Outer planets? Gas Giants?(pg 588-589) Inner planets- Mercury, Venus, Earth, Mars Outer planets- Jupiter, Saturn, Uranus, Neptune, Pl ...
... 1. What order are the planets starting at the sun and moving out? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune 2. What planets are the inner planets? Outer planets? Gas Giants?(pg 588-589) Inner planets- Mercury, Venus, Earth, Mars Outer planets- Jupiter, Saturn, Uranus, Neptune, Pl ...
Life Histories Of Some Stars
... move. And the faster hydrogen nuclei move, the more likely it is that two nuclei will hit each other and fuse. So even though larger stars have more hydrogen reserves, they fuse hydrogen into helium at a much higher rate. This explains why large stars don’t spend much time as main sequence stars (co ...
... move. And the faster hydrogen nuclei move, the more likely it is that two nuclei will hit each other and fuse. So even though larger stars have more hydrogen reserves, they fuse hydrogen into helium at a much higher rate. This explains why large stars don’t spend much time as main sequence stars (co ...
Chapter 13 Other Planetary Systems: The New Science of Distant
... Jupiter-like planets should not form inside the frost line (at << 5 AU). • The discovery of hot Jupiters has forced reexamination of nebular theory. • Planetary migration or gravitational encounters may explain hot Jupiters. © 2010 Pearson Education, Inc. ...
... Jupiter-like planets should not form inside the frost line (at << 5 AU). • The discovery of hot Jupiters has forced reexamination of nebular theory. • Planetary migration or gravitational encounters may explain hot Jupiters. © 2010 Pearson Education, Inc. ...
1. Base your answer to the following question on the
... 54. Describe the general relationship between the length of the Sun’s apparent path and the duration of daylight. 55. The Sun travels 45° in its apparent path between the noon position and point A. Identify the time when the Sun is at point A. Include a.m. or p.m. with your answer. 56. On the celest ...
... 54. Describe the general relationship between the length of the Sun’s apparent path and the duration of daylight. 55. The Sun travels 45° in its apparent path between the noon position and point A. Identify the time when the Sun is at point A. Include a.m. or p.m. with your answer. 56. On the celest ...
Basic Astronomical Estimates
... approximately 1.3 × 106 times that of the Earth [12]. These known dimensions are the result of a continuous increase during the Sun’s life and will continue to grow over billions of years until the Sun becomes a red giant, roughly 700 times bigger and 1.4 × 104 times brighter. Though the Sun will in ...
... approximately 1.3 × 106 times that of the Earth [12]. These known dimensions are the result of a continuous increase during the Sun’s life and will continue to grow over billions of years until the Sun becomes a red giant, roughly 700 times bigger and 1.4 × 104 times brighter. Though the Sun will in ...
class 1,F10
... • How did we come to be? —The matter in our bodies came from the Big Bang, which produced hydrogen and helium. —All other elements were constructed from H and He in stars and then recycled into new star systems, including our solar system. • How can we know what the universe was like in the past? • ...
... • How did we come to be? —The matter in our bodies came from the Big Bang, which produced hydrogen and helium. —All other elements were constructed from H and He in stars and then recycled into new star systems, including our solar system. • How can we know what the universe was like in the past? • ...
October - Sonoma County Astronomical Society
... core, it swelled into a red giant. When this happened it expanded to about the size of Earth’s orbit. Then, an unusual series of events occurred. V391 Pegasi blew away its outer envelope of gas, losing half its mass, keeping just a thin skin of atmosphere around its core. When the star lost that mas ...
... core, it swelled into a red giant. When this happened it expanded to about the size of Earth’s orbit. Then, an unusual series of events occurred. V391 Pegasi blew away its outer envelope of gas, losing half its mass, keeping just a thin skin of atmosphere around its core. When the star lost that mas ...
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.