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| | 3D Universe: Views from Distant Worlds |
 | | Upsilon Andromedae is, in many ways, similar to the Sun. | | | Right now, we lack the instrumentation to detect Earth-size planets around other stars, so whether Upsilon Andromedae has such planets is an open question. | | | One of the Jupiterlike planets is in transit across the star's disk, which is somewhat hotter (whiter) and more luminous than the Sun's. |
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http://www.astronexus.com/3duniv/contents/dw-pages/dw-upsand.html
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| | Notes for ups And |
| | Evolution of Upsilon Andromedae: The Key to the Apsidal Lock (.AVI movie) (Eugene Chiang) | | | LISSAUER J. Stability Analysis of the Planetary System Orbiting Upsilon Andromedae. | | | LAUGHLIN G. Stability and Chaos in the upsilon Andromedae Planetary System. |
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http://www.obspm.fr/encycl/ups-And.html
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| | Upsilon Andromedae 2 |
| | The Upsilon Andromedae (ups And) binary system is located about 43.9 light-years from Sol. | | | For more information about stars including spectral and luminosity class codes, go to ChView's webpage on The Stars of the Milky Way. | | | John Whatmough developed illustrated web pages on this system in Extrasolar Visions. |
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http://www.solstation.com/stars2/ups-and.htm
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| | Thesis Paper |
| | Two unconfirmed data spikes were observed for Upsilon Andromedae, both occurring on March 13, 2001 (see figs 13 and 14). | | | The first data spike was observed, and a second observation was taken immediately after the first, revealing a smaller spike for the second observation. | | | Upsilon Andromedae proved to be the most interesting system studied on the Morehead Radio Telescope. |
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http://people.morehead-st.edu/students/pm/pjmill01/thesispaper9.html
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| | Upsilon Andromedae |
| | In addition to its planets, Upsilon Andromedae has a faint 12th or so magnitude class M red dwarf (M4.5) binary companion that is at least 750 AU away and takes at least 17,000 years to orbit. | | | Upsilon Andromedae is a fourth magnitude star (magnitude 4.09) class F (F8) ordinary dwarf 44 light years away. | | | Like Mu Arae, it is unusual in having three known planets. |
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http://www.astro.uiuc.edu/~kaler/sow/upsand.html
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| | 04.13.2005 - Wayward planet knocks extrasolar planets for a loop |
| | This computer animation shows one possible scenario for the origin of the highly eccentric orbits of the two outer planets of the Upsilon Andromedae system. | | | Understanding what happened during the formation and evolution of Upsilon Andromedae and other extrasolar planetary systems has major implications for our own solar system. | | | The conclusion is based on computer extrapolations from 13 years of observations of planet motions around the star Upsilon Andromedae. |
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http://www.berkeley.edu/news/media/releases/2005/04/13_planet.shtml
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| | New Planets Discovered around the star Upsilon Andromedae |
| | The discovery is especially exciting because it is good evidence that multi-planet systems are common in the universe, and raises the possibility that life might have developed in places other than on Earth. | | | These findings show that planetary systems might be common in the universe, and raises the possibility that life might have developed in other places than on Earth. | | | This is a drawing of where the 3 planets (red dots) would orbit around Upsilon Andromedae. |
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http://www.windows.ucar.edu/headline_universe/upsilon.html.backup_NewsDates
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| | IAU Symposium 202 - Poster paper |
| | An estimation of upper limit masses of an extrasolar planetary system, Upsilon Andromedae, is described. | | | However, this inherent uncertainty may be supplemented by long-term numerical integrations of planetary orbits. | | | Another interesting feature in the orbital motion of upsilon Andromedae planets is that the longitudes of pericenter of outer two companions are likely to align, which leads to stabilize the system. |
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http://ast.star.rl.ac.uk/symp202/posters/ito.html
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| | Science Journal |
| | Lead a discussion of the usefulness of the K-W-L chart to help remember/refine their prior knowledge, make links to new knowledge, summarize and self-monitor learning, and engage the reader. | | | What do scientists hope to learn by studying the Upsilon Andromedae system? | | | Compare and contrast Upsilon Andromedae’s and Sol’s planetary systems. |
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http://www2.corvallis.k12.or.us/teaching_learning/StrategicReaders/Lessons-M/M_KWL_ScienceJournal.htm
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| | IAU Symposium 202 - Poster paper |
| | Stability Mechanism of the Upsilon Andromedae Planetary System | | | If the pericenters of the two outer planets move independently, the planetary system becomes unstable. | | | The stability of Upsilon Andromedae Planetary system is maintained by the corotation of the pericenters of the two outer planets. |
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http://ast.star.rl.ac.uk/symp202/posters/kinoshita.html
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| | Untitled Document |
| | In the Upsilon Andromedae system we have both types of planets, perhaps making this a Rosetta stone that will allow us to understand the formation and evolution of these alien planetary systems. | | | As the existing Doppler survey programs improve their precision, time baseline, and sample size, many more multiple-planet systems will be found. | | | Upsilon Andromedae, the only confirmed system of multiple extrasolar planets, meets these conditions. |
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http://www.carnegieinstitution.org/YearBook_99_00/scientists/Butler/PaulButler.html
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| | Visualizations of Space |
| | See the interactive animation of Binary Orbits (Java applet) with discussion created by Professors Mike Guidry and Daunt for an astronomy course at the University of Tennessee. | | | Sylvain G. Korzennik -- an astronomer at the Harvard-Smithsonian Center for Astrophysics working on the Advanced Fiber Optic Echelle AFOE) spectrometer -- developed the following animations of Solar and Extra-Solar planetary orbits (with additional information, renderings, and short movies) at his web pages: Upsilon Andromedae Gallery; and Animation of Orbits. | | | David Seal (a mission planner and engineer at NASA's Jet Propulsion Laboratory at CalTech) has a web site that generates simulated images of the Sun, planets, and major moons from different perspectives and at different times of the year. |
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http://www.solstation.com/visuals.htm
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| | AEF - Visions Learning Activities |
| | Use the information in the article to define a new life-form that could survive in the current environment of any one of Upsilon Andromedae's three known planets. | | | But this is the first time a solar system with multiple planets has been found. | | | Are there any similarities between the solar system of Upsilon Andromedae and our own solar system? |
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http://www.aef.org/visions/041699.asp
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| | Upsilon Andromedae |
| | This is the first multi planet system found other than our own Solar system. | | | While studying Upsilon Andromedae from the lick observatory in 1996, the planet hunter Debra Fischer found that it was being orbited by at least 3 planets, all gas giants. |
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http://www.xyroth-enterprises.co.uk/upsiland.htm
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| | [10.01] Dynamical origin of Upsilon Andromedae: disk-planet interaction? |
| | Direct N-body simulations, treating the inner, short-period planet in a simplified manner, suggest that the system survived in the current state since the epoch of formation ~3 Gyr ago. | | | Upsilon Andromedae, the first multiplanetary system discovered among the main-sequence stars, is much more dynamically stable than the first investigations suggested. | | | We discuss the possibility that the system's orbits were shaped by the interaction of protoplanets with the protoplanetary disk, in the first few millions of ups And's existence. |
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http://www.aas.org/publications/baas/v33n3/dda2001/40.htm
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| | The Upsilon Andromedae System |
| | Nonetheless, as we shall observe below, the numbers of the ancient reckoning system would appear to account for the orbital timing of the Upsilon Andromedae system. | | | As we may observe from the previous analysis, the numbers of the Upsilon Andromedae system are quite relational to the historically significant numbers/fractals of the ancient reckoning systems, as well as to nature which is after all logical. | | | The theoretically based information about the three planetary bodies for the U Andromedae system involves different aspects of the planetary bodies. |
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http://www.earthmatrix.com/andromedae/system.htm
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| | The Annihilation Fountain Issue #10 - From the Cave to Upsilon Andromedae by Ron Callari |
| | So what the Neanderthals and Upsilon Adromedae might be telling us is that we are just on the cusp of understanding our link to the cosmos. | | | Because it is time that is the great leveler, not size. | | | So even though we may perceive ourselves as drifting far in stature from the center of the universe, their 10 million year message (talk about snail mail) might be that it is not the size that counts, it has more to do with the fact that we’ve got a long way to go baby! |
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http://www.capnasty.org/taf/issue10/upsilon.htm
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| | [No title] |
| | Thus the discovery of this multiple planet system suggested a new paradigm for planet formation where many small seed planets known as planetesimals might develop in the disk of matter surrounding a star. | | | New tantalising results for a star called Upsilon Andromedae may suggest that such water detection is possible in exoplanetary searches. | | | With its trio of planets, Upsilon Andromedae harbors the first planetary system that is reminiscent of our own Solar System. |
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http://www.astrobio.net/cgi-bin/xml.cgi?sid=277&ext=.html
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| | upsilon |
| | However with this solution we can add as many systems as you wish. | | | This is just what Robert Fowler has done with the Upsilon Andromedae Planetary System. | | | Surprisingly Upsilon Andromedae is a small download for a complete Planetary System. |
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http://www.eharm.net/shop/freeware/orbiter/addons/upsilon/upsilon.html
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| | The Upsilon Andromedae System |
| | The discovery of a system with two or more planets by the precision Doppler technique requires a time span longer than the orbital period of the most distant planet, and many dozens of observations. | | | The data baseline must be longer than the orbital period of the most distant planet. | | | Both the "Lick Observatory" and the "AFOE" groups have been observing Upsilson Andromedae whenever time permits since 1996. |
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http://astronomy.swin.edu.au/sao/guest/butler
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| | Solar Voyager Forums: Upsilon Andromedae |
| | As for the planets' names,that's why I referenced my source in case things were not correct-the article I read was six years old. | | | I did a google search on Upsilon Andromedae which may or may not be correct, temperature about 6000 Kelvin with a radius 60 percent larger than Sol and a class F (F8) ordinary dwarf. | | | Scientists have just discovered a sun similar in size to ours called Upsilon Andromedae located 13.5 parsecs from earth. |
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http://www.solarvoyager.com/forum/forum_posts.asp?TID=2172
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| | [No title] |
| | The Andromeda constellation, approximately 15 degrees wide x 20 degrees tall. | | | Upsilon Andromedae is 10 degrees East (1/2 image width to the left) of the | | | Digital Sky Survey from Palomar, 3 deg x 3 deg, |
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http://astron.berkeley.edu/~gmarcy/ups_and_images.html
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| | APOD: April 22, 1999 - Where is Upsilon Andromedae |
| | APOD: April 22, 1999 - Where is Upsilon Andromedae | | | the northern constellation Andromeda at about 4th magnitude. | | | These planets were not directly photographed but found through a Doppler technique developed to use large telescopes to |
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http://antwrp.gsfc.nasa.gov/apod/ap990422.html
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| | Planet-Planet Scattering in Upsilon Andromedae |
| | Many more images and animations on these planets can be found online, for example at: | | | Artist's Renditions of the Upsilon Andromedae planetary system | | | More information on the Upsilon Andromedae system can be obtained from: |
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http://www.astro.northwestern.edu/rasio/UpsAndPR
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| | No water in exoplanets |
| | On Sept. 27 and 28, the 16-MHz correlator generated spectra with 1-sigma-noise levels in each 0.42-km/s channel of 46 mJy over -90 to +126 km/s and of 30 mJy over -25 to +191 km/s, respectively. | | | On Sept. 27.7, Lovell and Kondratko also observed upsilon And in Canberra with both correlators and obtained 1-sigma noise levels of 73 mJy over about -2650 to +2650 km/s (with 1.3-km/s channels) and 64 mJy over -42 to +174 km/s (with 0.42-km/s channels). | | | L. Greenhill, Smithsonian Astrophysical Observatory, reports the nondetection of water-maser emission from five extrasolar planetary systems, including two from which water emission has been reported [Muir 2002, New Scientist 175(2361), 22], noting that young planetary systems may contain water in planets' atmospheres, interplanetary material, and comets. |
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http://www.obspm.fr/encycl/papers/no-water.html
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| | Re: m&r...disinformation... |
| | a number of programs that offer internships for undergraduate and graduate students Simulated view of Planets around Upsilon Andromedae by Sylvain Korzennik. | | | around Upsilon Andromedae, Of the Star Field around Upsilon Andromedae. | | | around Upsilon Andromedae by Sylvain Korzennik, Upsilon Andromedae by Sylvain Korzennik. |
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http://jefferson.village.virginia.edu/~luoma/peace/dist/hdir/CaAbATCBtLaa9j.html
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| | The Upsilon Andromedae Planetary System |
| | There is more on the AFOE's planet detection program. | | | Andromedae planetary system, with comparisions to our own solar system, | | | "Evidence for a System of planets orbiting upsilon Andromedae", |
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http://cfa-www.harvard.edu/afoe/upsAnd.html
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| | Upsilon Andromedae - definition of Upsilon Andromedae in Encyclopedia |
| | Upsilon Andromedae was the first main sequence star determined to have more than one extrasolar planet. | | | So far, three such objects have been discovered within the system; all three are believed to be gas giants. | | | Its composition and position means that it would be blue in colouring. |
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http://encyclopedia.laborlawtalk.com/Upsilon_Andromedae
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| | I:\INTERNET\Download\May1999O.htm |
| | However, its spectral class is F8, which is considered sun-like. | | | Upsilon Andromedae has been known since 1997 to have at least one planet, one of those famous gas giants which is amazingly close to its primary. | | | The only previous definitely known multiple-planet system is the rather bizarre two-or-three planet system orbiting the pulsar PSR 1957+12. |
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http://members.aol.com/osanss/Outreach/outreach9905.htm
(6068 words)
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| | Extrasolar Planets - Upsilon Andromedae |
| | This is the only system for which three planets are known. | | | Upsilon Andromedae is also one of the few stars with exoplanets, which has already left the main sequence and reached the stage of subgiant. | | | JIANG Y. and IP W., 2000: The Planetary System of Upsilon Andromedae. |
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http://www.exoplaneten.de/upsand/english.html
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| | Upsilon Andromedae Gallery |
| | There is more on the AFOE's planet detection program. | | | Animations of the artist rendering of the Upsilon Andromedae system: | | | Pictures: comparisons of Upsilon Andromedae with our Solar System: |
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http://cfa-www.harvard.edu/afoe/simulation.html
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| | Upsilon Andromedae -- Facts, Info, and Encyclopedia article |
| | [Categories: Yellow-white dwarfs, Planetary systems, Extrasolar planets, Bayer objects, Andromeda constellation] | | | So far, three planets have been discovered within the (Instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity) system; all three are believed to be (Any of the four outermost planets in the solar system; much larger than Earth and gaseous in nature (like Jupiter)) gas giants. | | | υ Andromedae was the first (Click link for more info and facts about main sequence) main sequence star determined to have more than one (Click link for more info and facts about extrasolar planet) extrasolar planet. |
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http://www.absoluteastronomy.com/encyclopedia/u/up/upsilon_andromedae.htm
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| | Extrasolar Visions - upsilon Andromedae d |
| | These are the first and second planets of upsilon Andromedae. | | | Weighing in at 4 Jupiter masses is upsilon Andromedae d, the outermost known planet in this new solar system. | | | Recent studies indicate that stars with epistellar planets, like upsilon Andromedae b, might emit superflares every century or so. |
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http://www.extrasolar.net/planet.asp?PlanetID=73
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| | Upsilon Andromedae - Wikipedia, the free encyclopedia |
| | υ Andromedae was the first main sequence star determined to have more than one extrasolar planet. | | | So far, three planets have been discovered within the system; all three are believed to be gas giants. | | | Upsilon Andromedae (also "υ And" or "υ Andromedae") is a star, approximately 44 light-years from Earth, and approximately 3 billion years old, two thirds the age of our Sun. |
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http://www.wikipedia.org/wiki/Upsilon_Andromedae
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| | Lab Notes |
| | By measuring these changes over time, astronomers can accurately compute the "wobble" of a star caused by the gravity of any planets in orbit around it. | | | However, since no known lifeform could actually live on these planets, the finding isn't much more than an astronomical curiosity. | | | The finding marks the first confirmed discovery of a multi-planet system around a yellow-dwarf type star much like our own Sun, lending hope that our solar system is not so unusual in the galaxy. |
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http://www.scifi.com/sfw/issue111/labnotes.html
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| | Upsilon Andromedae |
| | The first main sequence star around which an extrasolar planetary system was found; it lies in the constellation Andromeda. | | | As to whether there might be life around upsilon Andromedae, that is impossible to say. | | | This became the fourth known epistellar jovian, having an orbit that brings it seven times closer to its host star than Mercury is to the Sun. |
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http://www.daviddarling.info/encyclopedia/U/upsAnd.html
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| | Extrasolare Planetensysteme - Upsilon Andromedae |
| | JIANG Y. & IP W., 2000: The Planetary System of Upsilon Andromedae. | | | Die Entfernung, kombiniert mit der im Vergleich zur Sonne höheren Leuchtkraft des Sterns, gibt seinen Monden ein eher marsähnliches Klima. | | | Von etwas vertrauterer Gestalt ist Upsilon Andromedae c, der seinem Stern nur wenig näher ist als die Erde der Sonne, aber die fast vierfache Menge an Licht und Wärme erhält. Upsilon Andromedae c ist ein großer Gasplanet, vermutlich mit einer Armada von Monden. |
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http://www.exoplaneten.de/upsand/index.html
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| | Research & Technology Report 2000 |
| | The objectives of this project are to study the dynamical properties of planetary systems that are consistent with the observational data on the three-planet system orbiting the nearby main sequence star Upsilon Andromedae. | | | Simulations using the February 2000 parameters are stable for planetary masses as much as four times as large as the observational lower bounds (which are obtained by assuming that the solar system lies in the orbital plane of the Upsilon Andromedae planetary system). | | | Results show that systems with the planetary masses and orbital parameters that provide the best fit to stellar radial velocity observations made at Lick Observatory through either February 2000 or July 2000 are substantially more stable than systems with the parameters originally announced in April 1999. |
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http://ameslib.arc.nasa.gov/randt/2000/science/planet9.html
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| | eSky: Upsilon Andromedae |
| | It is famous as the first star around which a true system of planets was discovered. | | | This faint pale yellow star is some ten degrees east of the Andromeda Galaxy in the sky, and is a relatively close neighbour at 44 light years' distance. |
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http://www.glyphweb.com/esky/stars/upsilonandromedae.html
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| | Multi-planet system startles astronomers (April 1999) - News - PhysicsWeb |
| | Previously astronomers thought that Jupiter-sized planets could only form on the outskirts of planetary systems, but two of the planets orbit Upsilon Andromedae at less than the Earth-Sun distance. | | | Astronomers have discovered the first planetary system around a star other than the Solar System around our Sun. | | | In 1996 Geoffrey Marcy from San Francisco State University, together with Butler, discovered one planet by observing a ‘wobble’ in the star’s rotational velocity. |
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http://physicsweb.org/articles/news/3/4/9/1
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| | Planets |
| | According to Contos, however, the more planetary systems there are, the greater the chance of finding a planet with the elements essential for life. | | | The Upsilon Andromedae system is in the constellation Andromeda, visible in the Northern Hemisphere from June through February. | | | Yesterday astronomers announced the first ever discovery of a planetary system like our own. |
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http://www.oracle.com/technology/products/text/x/samples/themes_and_gists/gists/planets_1.html
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| | GO NATURE-TRIPPING - JUNIOR INQUIRER (May 1, 1999) |
| | Marcy and his colleagues have been looking for extrasolar planets since 1987, and finding them since 1995. | | | There are now at least 20 such planets, including those around Upsilon Andromedae. | | | The planets cannot be seen, even with telescopes, due to the brightness of the star and the planets' closeness to it. |
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http://www.inq7.net/junior/may99wk1/jun_main.htm
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| | An Encyclopedia of Suns |
| | Upsilon Andromedae is thus of particular interest, so I decided to bend the rules a bit for it. | | | This is Upsilon Andromedae, whose luminosity is just outside the normal limits (about 3.5x solar). | | | I have included it because it is the first more-or-less Sunlike star discovered to have more than one planet orbiting it (three Jupiter-sized ones, to be exact). |
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http://www.astronexus.com/eos/details2.php
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| | Multiple Planet systems |
| | The first, Upsilon Andromedae, is a triple planet system that was discovered by the Lick and AFOE teams in 1999. | | | This announcement has been followed by the detection of several double planet systems. | | | The residual velocity trends observed in at least half of these stars, suggest that known planet-bearing stars appear to harbor a distant detectable companion more often than other stars in our planet survey. |
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http://exoplanets.org/mult.shtml
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| | Planet-planet scattering in the upsilon Andromedae system : Nature |
| | Planet-planet scattering in the upsilon Andromedae system : Nature | | | Several mechanisms have been proposed to generate large eccentricities after planet formation, but so far there has been little observational evidence to support any particular model. | | | And) probably results from a close dynamical interaction with another planet |
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http://www.nature.com/doifinder/10.1038/nature03427
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