Prospecting for Planets – Radial Velocity Searches
... The first planet orbiting a star other than our Sun (or 'exoplanet') was discovered in 1992, orbiting an odd type of star known as a pulsar. It wasn't until three years later that the next exoplanet was discovered, this time around a star similar to our Sun. Since then the number of exoplanets we ha ...
... The first planet orbiting a star other than our Sun (or 'exoplanet') was discovered in 1992, orbiting an odd type of star known as a pulsar. It wasn't until three years later that the next exoplanet was discovered, this time around a star similar to our Sun. Since then the number of exoplanets we ha ...
Astronomical Units and Light Years
... 2. Turn to textbook page 542-543. Copy Figure 5 into the box below. Include the names of the planets and the distance from the sun in both km and AU. Use color. ...
... 2. Turn to textbook page 542-543. Copy Figure 5 into the box below. Include the names of the planets and the distance from the sun in both km and AU. Use color. ...
stars - Chatt
... • These are stars thirty times bigger than our Sun. • Small, very dense object with an extremely strong gravitational pull. • Nothing can escape from it; not even light. ...
... • These are stars thirty times bigger than our Sun. • Small, very dense object with an extremely strong gravitational pull. • Nothing can escape from it; not even light. ...
3-Stars AM Adapted - vhs-ees-am
... 90% of all stars in the universe; when stars radiate (shine) energy into space ...
... 90% of all stars in the universe; when stars radiate (shine) energy into space ...
Microlensing Studies in Crowded Fields
... And We Need Good Time Resolution! • We cannot assume that high speed, high resolution follow-up will be available elsewhere. • The microlensing signature from an earth-mass event may only last for a few hours or less. • We need to be able to carry out accurate photometry every few minutes in order ...
... And We Need Good Time Resolution! • We cannot assume that high speed, high resolution follow-up will be available elsewhere. • The microlensing signature from an earth-mass event may only last for a few hours or less. • We need to be able to carry out accurate photometry every few minutes in order ...
Stars - TeacherWeb
... together by gravity and is composed of gas and emits light. • A star is born when the gases inside a nebula contract together. Inside the nebula you will find new starts. ...
... together by gravity and is composed of gas and emits light. • A star is born when the gases inside a nebula contract together. Inside the nebula you will find new starts. ...
White Dwarf star. Are
... cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. But this will not happen for another 5 billion years! ...
... cannot be recharged. When the battery runs out of energy, it is finished. Our sun will run out of energy and it will be finished too. But this will not happen for another 5 billion years! ...
PISGAH Dr. Bob Hayward ASTRONOMICAL Astronomer/Educator
... observing. Locate his belt marked by three bright stars in a row. Now, draw a line through his belt towards the west and you will come to a bright star, Aldebaran, the eye of Taurus the bull. A cluster of stars called the Hyades forms the face of the bull and can be seen in the form of a letter “V” ...
... observing. Locate his belt marked by three bright stars in a row. Now, draw a line through his belt towards the west and you will come to a bright star, Aldebaran, the eye of Taurus the bull. A cluster of stars called the Hyades forms the face of the bull and can be seen in the form of a letter “V” ...
Searching For Planets Beyond Our Solar System - Cosmos
... the telescope is deformed rapidly to adapt to the atmospheric eects which normally distort all ground-based images, may oer some possibilities, and the prospects in the infrared are more promising, especially for younger (and warmer) Jupiter-type planets. But the problem is still a daunting one. T ...
... the telescope is deformed rapidly to adapt to the atmospheric eects which normally distort all ground-based images, may oer some possibilities, and the prospects in the infrared are more promising, especially for younger (and warmer) Jupiter-type planets. But the problem is still a daunting one. T ...
Planets and Exoplanets 2011: Exercises to Atmospheres
... with σ the constant of Stefan-Boltzmann (5.670 × 10−8 W m−2 K−4 ), a the (wavelength independent and dimensionless) albedo of the planet, L the luminosity of the star (in W), and d the distance between the star and the planet (in m). In the following, we will derive Eq. 4. a. Write down the expressi ...
... with σ the constant of Stefan-Boltzmann (5.670 × 10−8 W m−2 K−4 ), a the (wavelength independent and dimensionless) albedo of the planet, L the luminosity of the star (in W), and d the distance between the star and the planet (in m). In the following, we will derive Eq. 4. a. Write down the expressi ...
I CAN SEE THE STARS IN YOUR EYES
... at this speed, the trip from Earth to the sun, a distance of 93 million miles, would take about 8 minutes, not very long for such a long trip! Yet, to get to the next closest star, Proxima Centauri, would take 4.2 years. “Hmmm…,” you think to yourself, “that might be an interesting fact to include i ...
... at this speed, the trip from Earth to the sun, a distance of 93 million miles, would take about 8 minutes, not very long for such a long trip! Yet, to get to the next closest star, Proxima Centauri, would take 4.2 years. “Hmmm…,” you think to yourself, “that might be an interesting fact to include i ...
Protostar, Initial mass, Main Sequence
... Red dwarf stars with less than half a solar mass do not achieve red giant status they begin to fade as soon as their hydrogen fuel is exhausted. White dwarfs, planetary nebulae Our Sun, and any star with similar mass, will fuse to carbon and, possibly, oxygen and neon before shrinking to become a wh ...
... Red dwarf stars with less than half a solar mass do not achieve red giant status they begin to fade as soon as their hydrogen fuel is exhausted. White dwarfs, planetary nebulae Our Sun, and any star with similar mass, will fuse to carbon and, possibly, oxygen and neon before shrinking to become a wh ...
The First Thousand Exoplanets
... variation is inversely proportional to the square root of the orbital distance and proportional to the planet mass times the sin of the inclination angle of the orbit. Because of the uncertainty in inclination, a minimum mass is measured and for any sample of planet systems at random orientations t ...
... variation is inversely proportional to the square root of the orbital distance and proportional to the planet mass times the sin of the inclination angle of the orbit. Because of the uncertainty in inclination, a minimum mass is measured and for any sample of planet systems at random orientations t ...
Powerpoint of lecture 1
... • Some giant stars, in variable numbers If all main sequences are the same (i.e. have the same absolute magnitude at a given temperature), then can create a composite HR diagram (Handout 3) – plausible if all stars formed at same time out of same gas cloud same age and composition Then find distan ...
... • Some giant stars, in variable numbers If all main sequences are the same (i.e. have the same absolute magnitude at a given temperature), then can create a composite HR diagram (Handout 3) – plausible if all stars formed at same time out of same gas cloud same age and composition Then find distan ...
ppt
... In more massive stars further core collapse leads to the fusion of heavier and heavier elements – in these stars all of the metals were formed. Eventually the star runs out of efficient fusion reactions (once iron is formed), and the core collapses in a violent explosion – a supernova. Leaving behi ...
... In more massive stars further core collapse leads to the fusion of heavier and heavier elements – in these stars all of the metals were formed. Eventually the star runs out of efficient fusion reactions (once iron is formed), and the core collapses in a violent explosion – a supernova. Leaving behi ...
lifedeath - University of Glasgow
... Hydrogen fusion – fuelling a star’s nuclear furnace H = Hydrogen He = Helium ...
... Hydrogen fusion – fuelling a star’s nuclear furnace H = Hydrogen He = Helium ...
Slayt 1
... etc are formed during the SN explosion. • Now the interstellar medium is richer with heavy elements. • …but how did these elements in the ...
... etc are formed during the SN explosion. • Now the interstellar medium is richer with heavy elements. • …but how did these elements in the ...
Stars - MrCrabtreesScience
... • Pressure from the core balance pressure from above layers, particles don’t move. • Energy bounces around inside this layer for an average of 170,000 years. • 7-2,000,000 K ...
... • Pressure from the core balance pressure from above layers, particles don’t move. • Energy bounces around inside this layer for an average of 170,000 years. • 7-2,000,000 K ...
In Retrospect: Kepler`s Astronomia Nova
... theory was a vanguard for future studies. Kepler’s revolutionary model was accurate enough to predict the transits of the inner planets Mercury and Venus across the Sun’s disc, which were first observed in 1631 and 1639, respectively. Thus it is fitting that Kepler’s name today graces the first spac ...
... theory was a vanguard for future studies. Kepler’s revolutionary model was accurate enough to predict the transits of the inner planets Mercury and Venus across the Sun’s disc, which were first observed in 1631 and 1639, respectively. Thus it is fitting that Kepler’s name today graces the first spac ...