What is a planet? Why? How?
... • Massive enough that fusion started for deuterium • But not massive enough for normal hydrogen fusion • Fusion takes place only over a short time period for ...
... • Massive enough that fusion started for deuterium • But not massive enough for normal hydrogen fusion • Fusion takes place only over a short time period for ...
I. What is an Exoplanet?
... If the lens star has a planet orbiting it, the gravitational field of the planet may cause small variations in the observed lensing effect. ...
... If the lens star has a planet orbiting it, the gravitational field of the planet may cause small variations in the observed lensing effect. ...
1. How can we detect extra-solar planets?
... In recent years a growing number of exoplanets have been detected via transits = temporary drop in brightness of parent star as the planet crosses the star’s disk along our line of sight. ...
... In recent years a growing number of exoplanets have been detected via transits = temporary drop in brightness of parent star as the planet crosses the star’s disk along our line of sight. ...
Powerpoint for today
... Solar system formed out of a "whirlpool" in a "universal fluid". Planets formed out of eddies in the fluid. Sun formed at center. Planets in cooler regions. Cloud called "Solar Nebula". This is pre-Newton and modern science. But basic idea correct, and the theory evolved as science advanced, as we'l ...
... Solar system formed out of a "whirlpool" in a "universal fluid". Planets formed out of eddies in the fluid. Sun formed at center. Planets in cooler regions. Cloud called "Solar Nebula". This is pre-Newton and modern science. But basic idea correct, and the theory evolved as science advanced, as we'l ...
Time runs out for Herschel
... eye of the storm is about 2000 km across – ten times the typical size on Earth – and clouds at the outer edge of the hurricane on Saturn are moving at more than 500 kph – rather faster than on Earth! One difference from terrestrial hurricanes is that this storm is locked into the weather system at t ...
... eye of the storm is about 2000 km across – ten times the typical size on Earth – and clouds at the outer edge of the hurricane on Saturn are moving at more than 500 kph – rather faster than on Earth! One difference from terrestrial hurricanes is that this storm is locked into the weather system at t ...
The Planets in our Solar System Solar System Basics
... • Temperature and distance from the Sun influenced the condensation of various substances within the evolving solar system. • Eventually, the condensing material merged to form large bodies hundreds of kilometers in diameter. ...
... • Temperature and distance from the Sun influenced the condensation of various substances within the evolving solar system. • Eventually, the condensing material merged to form large bodies hundreds of kilometers in diameter. ...
PPT - El Camino College
... • Takes a few billion years to make enough heavy metals inside stars that later explode. ...
... • Takes a few billion years to make enough heavy metals inside stars that later explode. ...
Exoplanet
... Radial Velocity Method (Doppler Method) This method measures slight changes in a star's velocity as the star and the planet move about their common center of mass. Astronomers can detect this motion by analyzing the spectrum of starlight due to the Doppler shift in the stars spectrum. ...
... Radial Velocity Method (Doppler Method) This method measures slight changes in a star's velocity as the star and the planet move about their common center of mass. Astronomers can detect this motion by analyzing the spectrum of starlight due to the Doppler shift in the stars spectrum. ...
Sample multiple choice questions for Exam 3
... 15) Short period comets most likely are: a) long-period comets trapped in the inner solar system by a chance "close encounter" with a major planet, such as Jupiter or Saturn b) giant potatoes placed in the inner solar system by Aliens in a far-off time c) asteroid miss-classified as comets d) comets ...
... 15) Short period comets most likely are: a) long-period comets trapped in the inner solar system by a chance "close encounter" with a major planet, such as Jupiter or Saturn b) giant potatoes placed in the inner solar system by Aliens in a far-off time c) asteroid miss-classified as comets d) comets ...
How Big Is Big
... 12. Scientists are discovering more __________ in our Solar System. They are all small _______ rocky worlds similar to Pluto. They are found in a region that includes Pluto called the Kuiper ________. The Kuiper Belt reaches from 30 – 50 ________ from the Sun and includes comets and all the newly di ...
... 12. Scientists are discovering more __________ in our Solar System. They are all small _______ rocky worlds similar to Pluto. They are found in a region that includes Pluto called the Kuiper ________. The Kuiper Belt reaches from 30 – 50 ________ from the Sun and includes comets and all the newly di ...
THE PLANETS
... It has over 60 known satellites Its rings are made up of billions of pieces of rocks, ice and dust. Titan is the only Saturn moon with an atmosphere. ...
... It has over 60 known satellites Its rings are made up of billions of pieces of rocks, ice and dust. Titan is the only Saturn moon with an atmosphere. ...
THE UNIVERSE Celestial Bodies - Joy Senior Secondary School
... A planet (from Ancient Greek (astēr planētēs), meaning "wandering star") is an astronomical object orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. ...
... A planet (from Ancient Greek (astēr planētēs), meaning "wandering star") is an astronomical object orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals. ...
What is a pulsar planet ? How do planets form ?
... • A massive star having planets explodes and becomes a pulsar with planets. • Explosion energy is injected from supernovae to planets. If the star has a jupiter-like planet, about 1046 erg is injected to the planet. This energy is enough to strip the atmosphere from the planet. Therefore only a core ...
... • A massive star having planets explodes and becomes a pulsar with planets. • Explosion energy is injected from supernovae to planets. If the star has a jupiter-like planet, about 1046 erg is injected to the planet. This energy is enough to strip the atmosphere from the planet. Therefore only a core ...
HABITABLE PLANETS For every star with planets, how many of
... and we should be searching for signals from them. Also, they have very long main sequence lifetimes, so you could have civilizations as old as 1015 billion years on planets orbiting these stars. Conclusion: avg. number of habitable planets per star ~ 0.01--0.5, with huge uncertainty (mostly due to u ...
... and we should be searching for signals from them. Also, they have very long main sequence lifetimes, so you could have civilizations as old as 1015 billion years on planets orbiting these stars. Conclusion: avg. number of habitable planets per star ~ 0.01--0.5, with huge uncertainty (mostly due to u ...
Planetary Configurations
... Success rate is a few for every 100 stars using the Doppler method Results from Doppler – several unusual and unexpected systems ...
... Success rate is a few for every 100 stars using the Doppler method Results from Doppler – several unusual and unexpected systems ...
Which Objects Represent the Eight Planets in Our
... understanding of our own Solar System has dramatically changed. One of the greatest changes in the way we think about the Solar System is how we classify planets. There are eight planets in our Solar System. The four inner planets (Mercury, Venus, Earth, & Mars) are referred to as “terrestrial plane ...
... understanding of our own Solar System has dramatically changed. One of the greatest changes in the way we think about the Solar System is how we classify planets. There are eight planets in our Solar System. The four inner planets (Mercury, Venus, Earth, & Mars) are referred to as “terrestrial plane ...