Extra-Solar Planets
... In 1994, Penn State Prof. Alex Wolzczan discovered the first planet outside the solar system through timing of a pulsar. This pulsar has 3 small planets with masses of 0.02, 4.3, and 3.9 M (M=mass of Earth). These planets probably formed after the supernova explosion from the debris that was left ...
... In 1994, Penn State Prof. Alex Wolzczan discovered the first planet outside the solar system through timing of a pulsar. This pulsar has 3 small planets with masses of 0.02, 4.3, and 3.9 M (M=mass of Earth). These planets probably formed after the supernova explosion from the debris that was left ...
here
... between 0.8 AU and 1.5 AU. • AU- Astronomical Unit is equal to the distance between the Earth and the Sun. ...
... between 0.8 AU and 1.5 AU. • AU- Astronomical Unit is equal to the distance between the Earth and the Sun. ...
Planets Beyond the Solar System
... mph), mostly due to Jupiter. • The size of this path is about 0.001 arcsec (less than a millionth of a degree) as seen from 10 parsecs (33 light years) away. ...
... mph), mostly due to Jupiter. • The size of this path is about 0.001 arcsec (less than a millionth of a degree) as seen from 10 parsecs (33 light years) away. ...
Lecture 2: Exoplanets and life
... • Habitable zones around F, G, and early K stars are relatively wide. Some argue they’re even wider. • Stars hotter than about F0 are bad candidates for harboring habitable planets, primarily because of their short main sequence lifetimes • M stars have good CHZs, in theory. Their habitable zone ...
... • Habitable zones around F, G, and early K stars are relatively wide. Some argue they’re even wider. • Stars hotter than about F0 are bad candidates for harboring habitable planets, primarily because of their short main sequence lifetimes • M stars have good CHZs, in theory. Their habitable zone ...
PH709-10-asn1ans
... Please indicate if special requirements/instructions (e.g. graph paper) are to be supplied. Marks allocated to each question/part of question should be clearly noted in the righthand margin. Please ensure that the mark allocated for each part of the question is an integer. Mark (a) Explain the diffe ...
... Please indicate if special requirements/instructions (e.g. graph paper) are to be supplied. Marks allocated to each question/part of question should be clearly noted in the righthand margin. Please ensure that the mark allocated for each part of the question is an integer. Mark (a) Explain the diffe ...
Jupiter – key facts Largest and most massive planet in the Solar
... this satellite is largely icy, but with an iron and rocky core. Surface shows different ages suggesFng that a semi-‐liquid mantle may exist under the icy crust Callisto – the most distantly orb ...
... this satellite is largely icy, but with an iron and rocky core. Surface shows different ages suggesFng that a semi-‐liquid mantle may exist under the icy crust Callisto – the most distantly orb ...
ppt-file 2.4 MB
... system," says Franck, "but a water world almost entirely covered by oceans would have a better chance." The 47 UMa system intrigues experts because the star has roughly the same mass, age and spectrum as the Sun. Moreover, it hosts two giant gas planets, analogous to Jupiter and Saturn. It is though ...
... system," says Franck, "but a water world almost entirely covered by oceans would have a better chance." The 47 UMa system intrigues experts because the star has roughly the same mass, age and spectrum as the Sun. Moreover, it hosts two giant gas planets, analogous to Jupiter and Saturn. It is though ...
Intelligent life in the Universe
... • Its eccentricity. • Its composition, particularly O2 gas in a Nitrogen atmosphere. • Water. • Long term stability. ...
... • Its eccentricity. • Its composition, particularly O2 gas in a Nitrogen atmosphere. • Water. • Long term stability. ...
α Centauri: a double star - University of Canterbury
... Jupiter would cause a fall in brightness of the Sun by ~1% if it was in a transit event for a distant observer. ...
... Jupiter would cause a fall in brightness of the Sun by ~1% if it was in a transit event for a distant observer. ...
RAW #17-February 14
... Discoveries of exoplanets are becoming more common. And so are efforts to learn more about their compositions, climates and histories. Astronomers detected the first exoplanet atmosphere more than 15 years ago. But, they have only managed to observe a handful ever since. Most have been very hot plan ...
... Discoveries of exoplanets are becoming more common. And so are efforts to learn more about their compositions, climates and histories. Astronomers detected the first exoplanet atmosphere more than 15 years ago. But, they have only managed to observe a handful ever since. Most have been very hot plan ...
Exoplanets - An ESO/OPTICON/IAU summer school on modern
... (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit." IAU, Resolution B5 "Extrasolar planet is: an object that has a mass between that of Pluto and the deu ...
... (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit." IAU, Resolution B5 "Extrasolar planet is: an object that has a mass between that of Pluto and the deu ...
Number of planets - Associazione Astrofili "Crab Nebula"
... multiple stellar system (three stars). HD 209458 b e HD 189733b – The first exoplanets whose spectrum was analyzed by direct observation. Gliese 581 c – This planet seems likely to harbour liquid water on its surface – a basic requirement for life. No strong clues supporting the existence of water h ...
... multiple stellar system (three stars). HD 209458 b e HD 189733b – The first exoplanets whose spectrum was analyzed by direct observation. Gliese 581 c – This planet seems likely to harbour liquid water on its surface – a basic requirement for life. No strong clues supporting the existence of water h ...
here - Stargazers Club
... <1% of the luminosity. We’ve only been able to find Jupiter-size gas giants close to the star, because they’re the ones we can see. If we focus on a red dwarf, there’s a larger dip in the light curve (but since they’re dimmer, its harder to collect data). NASA launched the Kepler telescope, which co ...
... <1% of the luminosity. We’ve only been able to find Jupiter-size gas giants close to the star, because they’re the ones we can see. If we focus on a red dwarf, there’s a larger dip in the light curve (but since they’re dimmer, its harder to collect data). NASA launched the Kepler telescope, which co ...
ph507-16-1exo1
... Disc of material around the star Beta Pictoris – the image of the bright central star has been artificially blocked out by astronomers using a ‘Coronograph’ ...
... Disc of material around the star Beta Pictoris – the image of the bright central star has been artificially blocked out by astronomers using a ‘Coronograph’ ...
Extrasolar planets Topics to be covered Planets and brown dwarfs
... resembles that of the Sun: who’s to say that Jupiter is not simply a “failed star” rather than a planet? • The discovery of low-mass binary stars would be interesting, but (perhaps) not as exciting as discovering new “true” planets. • Is there a natural boundary between planets and stars? ...
... resembles that of the Sun: who’s to say that Jupiter is not simply a “failed star” rather than a planet? • The discovery of low-mass binary stars would be interesting, but (perhaps) not as exciting as discovering new “true” planets. • Is there a natural boundary between planets and stars? ...
Exoplanets
... The power (i.e., energy per unit time) the planet absorbs is related to the amount of starlight at the planet's location, the planet's cross-sectional area and the fraction of light that is absorbed (not reflected by the top of the atmosphere). The amount of starlight is proportional to the star's l ...
... The power (i.e., energy per unit time) the planet absorbs is related to the amount of starlight at the planet's location, the planet's cross-sectional area and the fraction of light that is absorbed (not reflected by the top of the atmosphere). The amount of starlight is proportional to the star's l ...
The MAS Winter Schedule February 21st: Membership Meeting at
... from its star’s surface— Jupiter is much closer to closer than four times the Artist’s conception shows exoplanet WASP- Earth, the composition of its distance of the Moon from 43B orbiting its orange dwarf host star. The atmosphere is actually Earth: so close that it four images below show close-ups ...
... from its star’s surface— Jupiter is much closer to closer than four times the Artist’s conception shows exoplanet WASP- Earth, the composition of its distance of the Moon from 43B orbiting its orange dwarf host star. The atmosphere is actually Earth: so close that it four images below show close-ups ...
Impossible planets.
... Institution of Washington. It’s sort of inevitable that this would work. I think it’s a positive idea." And after all, the peculiar planet at 51 Peg needs explaining somehow. Or perhaps it doesn’t. Last winter astronomer David Gray of the University of Western Ontario in London announced that the pl ...
... Institution of Washington. It’s sort of inevitable that this would work. I think it’s a positive idea." And after all, the peculiar planet at 51 Peg needs explaining somehow. Or perhaps it doesn’t. Last winter astronomer David Gray of the University of Western Ontario in London announced that the pl ...
Student Activity PDF - TI Education
... Move to pages 1.2 - 1.3 and read the background information for this activity. Objects in space are known as celestial bodies. These include objects such as planets, moons, and asteroids. Scientists use a variety of characteristics to analyze and classify a celestial body. One characteristic of a ce ...
... Move to pages 1.2 - 1.3 and read the background information for this activity. Objects in space are known as celestial bodies. These include objects such as planets, moons, and asteroids. Scientists use a variety of characteristics to analyze and classify a celestial body. One characteristic of a ce ...
Student Activity DOC - TI Education
... Move to pages 1.2 - 1.3 and read the background information for this activity. Objects in space are known as celestial bodies. These include objects such as planets, moons, and asteroids. Scientists use a variety of characteristics to analyze and classify a celestial body. One characteristic of a ce ...
... Move to pages 1.2 - 1.3 and read the background information for this activity. Objects in space are known as celestial bodies. These include objects such as planets, moons, and asteroids. Scientists use a variety of characteristics to analyze and classify a celestial body. One characteristic of a ce ...
EXOPLANETS The search for planets beyond our solar system
... The first exoplanets were discovered through the gravitational tug they exert on their parent stars, which causes the stars to wobble. This motion is revealed in the spectrum of a star’s emitted light. Elements present in the star absorb particular wavelengths of light to produce a characteristic se ...
... The first exoplanets were discovered through the gravitational tug they exert on their parent stars, which causes the stars to wobble. This motion is revealed in the spectrum of a star’s emitted light. Elements present in the star absorb particular wavelengths of light to produce a characteristic se ...
Habitable Zone - Wando High School
... And at some point 4.1 bya, these conditions were met for the first time. But what was necessary for this to happen on Earth? There seem to be a few requirements of that a planet must meet in order to be habitable for life. First, the planet must fall inside the Habitable Zone. As you can see in the ...
... And at some point 4.1 bya, these conditions were met for the first time. But what was necessary for this to happen on Earth? There seem to be a few requirements of that a planet must meet in order to be habitable for life. First, the planet must fall inside the Habitable Zone. As you can see in the ...
General Astronomy - Stockton University
... photographic plates and therefore knew best). At this point in time, the ‘jury is still out’ and we really don’t know if Barnard’s Star was the first discovery of extra-solar planets. ...
... photographic plates and therefore knew best). At this point in time, the ‘jury is still out’ and we really don’t know if Barnard’s Star was the first discovery of extra-solar planets. ...
Gliese 581
Gliese 581 (/ˈɡliːzə/) is a star of spectral type M3V (a red dwarf) about 20 light years away from Earth in the constellation Libra. Its estimated mass is about a third of that of the Sun, and it is the 89th closest known star to the Sun. Observations suggest that the star has a planetary system consisting of three known planets, designated Gliese 581 b, c, and e and a possibly confirmed planet, d, in order of discovery. Additional outer planets, which received the designations Gliese 581 f, and g have been proposed, but the evidence that led to the discovery claims has been shown to be the result of stellar activity mimicking the radial velocity variations due to orbiting planets.Gliese 581 has been the subject of a ""huge amount of attention"" in the quest to discover the first habitable extrasolar planet; first for c, and then d and g. Gliese 581 c, the first low-mass extrasolar planet found near a habitable zone, was discovered in April 2007. It has since been shown that under known terrestrial planet climate models, Gliese 581 c is likely to have a runaway greenhouse effect, and hence is probably too hot to be habitable, analogous to Venus. The proposed planets Gliese 581 d and Gliese 581 g also received attention as being located within the habitable zone, but their existence has subsequently been put into doubt by some authors.On 27 November 2012, the European Space Agency announced a debris disk, with at least ten times as many comets as the Solar System. This put constraints on possible planets beyond 0.75 AU.