... SMIS : Space Monitoring Information Support laboratory . Russia's Weather : State Meteorological Center Weather Forecast . Space Weather service : ACE real time solar wind data and simple geomagnetic activity forecast. ... World Fire Web : Space Research Institute (IKI) node . Sputnik : Joint project of SRC Planeta, Rosgidromet and Space Research Institute (IKI) . ... Today's Space Weather : Presented by the Space Environment Center . ... Back to the Space Research Institute Home Page ...

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• Views of the Solar System
• Astronomical Names
• Solar system [Oulu]

... Survey Telescopes . ... Astronomers using ESOтАЩs world-leading HARPS instrument have discovered a planetary system containing at least five planets, orbiting the Sun-like star HD 10180. ... The newly discovered system of planets around HD 10180 is unique in several respects. ... All very massive planetary systems are found around massive and metal-rich stars, while the four lowest-mass systems are found around lower-mass and metal-poor stars [5] . ... ESOcast 20: Richest planetary system discovered...

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• Animation of the planetary system around Sun-like star HD 10180 (artistтАЩs
• ESOcast 20: Richest Planetary System Discovered | ESO
• High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)

... Bad Astronomy . ... Bitesize Astronomy . ... If you thought our tour of the solar system ended with Neptune and Pluto, you are setting your sights way too low. The planets of the solar system mark time relatively close to the Sun compared to interstellar space. Pluto orbits the Sun at an average distance 40 times that of the Earth, yet the nearest star (the Alpha Centauri system) to the solar system is a mind-numbing 260,000 times the distance of the Earth to the Sun. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy

Astronotes Armagh Planetarium's Stellar Blog! ... Diagrams showing the familiar inner Solar System, outer planets and Kuiper Belt (plus Pluto), Sedna?s orbit and the beginning of the Oort Cloud (Image credit: NASA) . ... At its closest to the Sun, Sedna is about 76 AU from our star, at furthest some 937 AU.?а Sedna and VP113 are believed to be escapees from the Oort Cloud. ... Almost certainly, in the years to come astronomers will find more large worlds between the Kuiper Belt and Oort Cloud. ...

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• Neptune: discovered one year ago | Astronotes
• Kepler-10c: the First Mega-Earth | Astronotes
• Exoplanet HAT-P-1b: weird, warm and fuzzy | Astronotes

... Kepler is a mission designed to detect and characterize Earth-sized planets around solar-like stars. The sizes of the planets are determined from the decrease in light from a star that occurs during planetary transits, and the orbital period is determined from the repeatability of the transits. ... These goals are accomplished by continuously and simultaneously monitoring a single field of 140,000 stars for evidence of brightness changes caused by transits of Earth-sized or larger planets. ...

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• http://www.stsci.edu/stsci/meetings/planets/abs/prog18.html
• Planets Beyond the Solar System
• HST this week: 231

... 9a. Earth orbits Sun? . ... 10a. Scale of Solar Sys. ... If the mean distance of Earth from the Sun is 1 AU ("Astronomical Unit"), then that of Venus is 0.723 AU, of Mercury 0.387 AU and that of Mars is 1.524 AU. ... By noting (1) where on the Sun's disk is the crossing seen, (2) timing its duration at two far-apart points on Earth, and (3) comparing the times, one can calculate the distance to Venus and from it the scale of the solar system. ... One occurred in 1639--too early. ...

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• Space physics cordinate systems
• Kepler's First Law--Lesson Plan #20
• Space Research Institute (IKI) Seminar

... Satellites of the planets are assigned a provisional designation (indicating year of discovery) by the Central Bureau for Astronomical Telegrams ( CBAT ) upon satisfactory demonstration of the existence of a new object. ... In the past, Comets were first given a provisional designation, consisting of the year and a lowercase letter indicating the order of discovery in the year (e.g., 1994a was the first comet discovered or recovered in 1994, 1994b the second, etc.) ... Names .. ...

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• APOD: 2008 November 17 - HR 8799: Discovery of a Multi planet Star System
• APOD: 2008 February 18 - BLG 109: A Distant Version of our own Solar System
• APOD: 2005 June 14 - Gliese 876 System Includes Large Terrestrial Planet

... Ganymede: The Largest Moon in the Solar System . ... 20.06.2000 . ... Credit Copyright: Galileo Project , JPL , NASA . ... The reason is that Jupiter 's moon Ganymede is not only the largest moon in the Solar System , it is larger than planets Mercury and Pluto . ... Publications with keywords: Jupiter - Moon - Ganymede - Solar System - Galilean Moon . Publications with words: Jupiter - Moon - Ganymede - Solar System - Galilean Moon . ... Moons and Jupiter . ... To Scale: The Solar System . ...

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• Journal "Peremennye Zvezdy"
• Астронет > Gliese 876 System Includes Large Terrestrial Planet
• Астронет > Saturn-Sized Worlds Discovered

... As the list of extra-solar planets orbiting sun-like stars ( exoplanets.org/planet_table.shtml ) continues to grow, more and more members of multiple-planet systems ( exoplanets.org/mult.shtml ) are being discovered. ... A planet doesn't actually orbit a star; rather both orbit a point between the two objects. ... Figure 3-Two planets in orbit around 47-Ursa Majoris produce more complex variations in the Doppler-shift data. ... Could these be examples of "The Music of the NEW Spheres"? ...

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• ASP: Astronomy in the News
• ASP: A Good Definition of the Word "Planet": Mission Impossible?
• ASP: Exploring the Solar System: Further Guides and Resources

... Image courtesy of Korea Astronomy and Space Science Institute . ... There are already 29 multi-planet extrasolar planetary systems discovered (including this last one), so what makes this particular system unique? ... International Year of Astronomy, Ireland National Node . ...

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• Planetary Systems Research at Armagh
• Armagh Observatory
• Armagh Astropark: The Solar System

... Voyager Spacecraft Introduction (This Page) . ... The twin Voyager spacecraft, over the course of a dozen years, drew back the curtain on nearly half of the solar system . From launch in 1977 through the spectacular parting shots in 1989 of Neptune at the outer reaches of the solar system, this pair of gangly, instrument-laden spacecraft explored four planets -- Jupiter , Saturn , Uranus and Neptune -- as well as tens of moons, and the rings and magnetic environments of those planetary systems. ...

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• Galileo Mission Status - December 10, 1995
• Views of the Solar System
• Sun, Planet and Satellite Data

In ancient times the solar system was thought to be the whole Universe, so the study of planetary motions was cosmology. ... The planets other than the Moon and Sun generally move West to East through the stars, but occasionally stop and move in the opposite direction ( retrograde motion). In order to explain the retrograde motion of the planets, the geocentric model of the Solar System shown above puts the planets on small circles called epicycles . ...

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• Special systems

... 8, ``Celestial Mechanics'', 2002 Dynamic evolution of resonance orbits of exoplanets in system 47 Uma B. R. Mushailov, A. A. Kaloshin Sternberg Astronomical Institute, Moscow, Russia The orbits of the major and minor planets of the Solar system indicate that their dynamic evolution is essentially influenced by the effects of orbital resoґ nance interactions. ... One may expect that the orbital resonances can exist not only in the Solar system, but also in other star systems. ...

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• http://www.ipa.nw.ru/conference/2002/sovet/PS/SOKOL_L.PS
• Laboratory of minor bodies of Solar system
• Keywords_9

The stability of planetary systems after stellar mass loss : Prospects for White Dwarf planets and pollution Alexander James Mustill1*, Dimitri Veras2, Eva Villaver3, Amy Bonsor4, Boris GДnsicke2, Mark Wyatt 1 2 5 Lund Observatory ... 1TL, United Kingdom 5 Institute of Astronomy, University of Cambridge, Madingley Road, CB3 9ET, UK *alex@astro.lu.se Stars lose mass as they evolve to become white dwarfs ( WDs ), and this mass loss can induce ...

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• http://www.mrao.cam.ac.uk/wp-content/uploads/2014/04/GColeman.pdf
• Astrophysics Group Research and Instrumentation

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

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• The Three Planet System
• Orbital Properties of the Solar System
• Nov 18: Uranus/Neptune

... The common identifier of this star system is G89-14. Initially, there were known just two close spectroscopic components in this system, A and B, orbiting around each other with a period of about 190 days (Carney et al., ... Subsequently, at a separation of 34 arc seconds from this spectroscopic pair, Allen et al. (2000) found its companion D with common proper motion (Fig.1, right, and Fig.2). ... The uniqueness of this star is that it is the most metal-poor quadruple system known to date. ...

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• Solar system sector, archive 2010
• Solar system scientific results 2003
• Solar system sector, archive 2006

In this presentation I will recap what we know about the dwarf planet Pluto its companion moons, including some recent results from the Division of Planetary Sciences October 2014 meeting (Tucson, AZ). Next I will describe NASA s New Horizons mission, launched in January 2006, who has been traveling across the solar system and will reach the Pluto system in July 2015. ... I will end the presentation with the latest news from the New Horizons mission and its plans after the July 2015 Plutoflyby. ...

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• http://www.mso.anu.edu.au/seminars/abstracts/20150528-1100.html
• http://www.mso.anu.edu.au/seminars/abstracts/20141216-1100.html
• Michele Bannister - PhD research

... Tonight's Sky . ... Star Atlas . ... solar system . ... stars . ... Richest planetary system discovered . ... Astronomers using the European Southern Observatory's (ESO) High Accuracy Radial velocity Planet Searcher (HARPS) instrument have discovered a planetary system containing at least five planets, orbiting the Sun-like star HD 10180. ... All massive planetary systems are found around massive and metal-rich stars, while the four lowest-mass systems are found around lower-mass and metal-poor...

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• How Many Planets Are in the Solar System? | Astronomy.com
• Newfound frozen world orbits in binary star system | Astronomy.com
• Scientists searching for Earth-type planets should consider two-star systems |

... J5: Radio and Radar Studies of the Solar System. ... Analogously, the key idea of the USSR (United Solar System Radar) concept would be the thousandfold increase in sensitivity over existing radar astronomy facilities, and besides, only the tenfold increase in transmitting power and collecting areas of transmitting and receiving antennas is necessary for this purpose. ... So, let us try to imagine the scientific impact, which would provide this United Solar System Radar. ... 3) ?Asteroid's moons; . ...

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• Solar System Radar Research. IRE RAS.
• The Momentum of Open Systems Xtra '94 Survey Report
• Проспект фирмы SUN Petroleum Industry Enterprise Solutions

Resonances in the Solar and exoplanetary systems I. I. Shevchenko Pulkovo Observatory Abstract Dynamical problems on the orbital resonances, including mean motion resonances (both two-body and three-body ones) and secular resonances, are considered in application to the dynamics of the Solar and exoplanetary systems. The analyzed systems include multiplanetary (those with two or more than two planets) systems and planetary systems of double stars. ... Circumbinary planets at the "edge of chaos". ...

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• Pulkovo NEO Page: Ephemeris Support
• Conferences
• Phase light curves of young binary systems