... 2012 February 29 . Moon and Planets Over Catalonia . ... Explanation: Venus and Jupiter will appear unusually close in the sky over the next month. ... In the above image composite taken late last week from Catalonia , Spain , a bright crescent moon appears to the right of Venus, while Jupiter appears near the top of the image. ... A gallery of conjunction images is visible on the Asterisk -- APOD's discussion board. ... The next Jupiter-Venus conjunction will occur in May 2013. ... About APOD | ...

... The Race to Reveal Our Universe . ... Jupiters Moons Thebe, Amalthea, and Metis . ... A Green Flash from the Sun . ... Newborn stars lie at at the heart of the the Orion Nebula, hidden from view by the dust and gas of the giant Orion Molecular Cloud number 1 (OMC-1). ... As viewed from planet Earth, they will be clustered within about 26 degrees, the closest alignment for all these celestial bodies since February 1962, when there was a solar eclipse! ... The North America Nebula . ... February 2009 ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Planets . ... This bizarrely shrunken planetary system was found by NASAтАЩs Kepler mission, hence the parent star has been named Kepler-11. ... Planetary scientist and Kepler science team member Jack Lissauer said ?These six planets are mixtures of rock and gases, possibly including water.тАЭ €аNone of these strange new worlds are likely to be home to any form of life; their surface conditions are simply too extreme. ...

... Historical Data . Orbital Data . Physical Data . ... Sun . ... Jupiter . ... Saturn . ... William Herschel . ... William Cranch Bond . ... William Henry Pickering . Uranus . ... 1986 . Voyager 2 . ... William Lassell . ... J. Christy Key: Name Name of the planet or satellite. Orbits Sun or planet about which it orbits. ...

Giant Jupiter. Jupiter . ... Jupiter has no solid surface that is why speaking about its dimensious point the radius of the upper border line of the clouds, where the presseru is about 10 KPa; radius of Jupiter on the equator is 71400 km. ... The Jupiter satellites. ... Nowadays 16 satellites of the Jupiter are known: Adrastea, Mitis, Amaltea , Phina,then 4 Galilei satellites: Io , Europe , Hanimed , Callisto , Leda, Aimalia, Zicitea, Elara, Ananke, Carme, Pasipe and Sinope. ... Jupiter's ring. ...

IRREGULAR SATELLITES . ... Planetary satellites in the solar system are divided into two types: Regular satellites orbit in circular, equatorial orbits close to the planet. ... Irregular satellites orbit the planet much further out. ... Examples of irregular satellite orbits . ... Unlike the regular satellites which formed with the planet, irregulars originally formed in heliocentric space (eg the asteroid belt) and were later captured in a closed orbit around the planet. ... Nature, 2004). ...

3) Planets and Brown Dwarfs . ... By its nature, this method is most sensitive to massive planets orbiting close to their stars. ... That means that some of the more massive extrasolar planets could actually be brown dwarfs (although the statistics of the finds suggest that most of them are not). ... Another possible difference between brown dwarfs and massive planets is how they are born. ... They would base the fundamental definition on the mode of formation: a planet is built from planetesimals. ...

... George Benedict, University of Texas at Austin . ... Abstract . ... Hubble Heritage Observations of Arp 87 . ... The Fine Guidance Sensors on HST are the only system currently capable of making observations at the required sub-milliarcscond accuracy, and has already been used for astrometry of four systems, including the M dwarf Gl 876. The current GO program pursues observations of six planetary hosts; the final set of FGS observations of HD 47536 is scheduled over the next week. ...

... An artificial comet holds secrets to Earths life . ... Planets, orbits, and comets are somewhat round. Is there an underlying mechanism or physical law? ... The force of gravity is also responsible for the elliptical, and occasionally circular, shapes of orbits. ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ...

Name Last modified Size Description . Parent Directory - 20111107/ 2011-11-15 16:04 - . Apache/2.4.6 (Linux/SUSE) Server at www.astro.louisville.edu Port 80

... PRESENTATIONS . Session 1: Missions to Jupiter system . ... Lebreton J.-P. (Invited) . ... The Europa-Jupiter System Mission: study results and prospects . ... Session 2: Technical aspects of the Europa Lander mission . ... V. Sasi Prabhakaran (POSTER PRESENTATION) . ... Geophysical investigations for a landed mission to Europa . ... The surface composition of Europa and implications for a landed mission . ... Vorobyova E. Search for Life on Europa: Objectives for Lander Mission . ...

... 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. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

Planetary Radio Interferometry and Doppler Experiment (PRIDE) for a Europa -Jupiter mission Leonid Gurvits, Sergei Pogrebenko, Peter Fridman, Giuseppe Cimo JIVE, Dwingeloo, The Netherlands Europa Lander : Science Goals and Experiments IKI , Moscow , Russia, 10-13 February 2009 Generic PRIDE configuration Background radio sources Earth VLBI Network and Two-way tracking stations Orbiter Planet-target Micro ... 2008, SKA Memo No. ... How many targets PRIDE-JE deal with: orbiter, lander(s)? ...

... Go directly to the moons of: . Mercury Venus Mars Jupiter Saturn Uranus Neptune Pluto . Go directly to the surface features of Earth's Moon and Mars . Planet & Moons . Pronunciation . ... Mercury . ... Mars: . 2 moons . ... Jupiter: . ... Neptune: . ... 1 moon . ...

On the inclination of planetary orbits! Caroline Terquem! ... Planets on inclined orbits Higher inclinations for planets around stars with Teff>6250K? Planet formation, Hot Jupiters and misalignments 1. If planets form by the core accretion scenario and migrate in: Hot Jupiters But no eccentricity and no misalignment (if the disc is in the star's equatorial plane) With further planet/planet scattering and/or Kozai cycles: Eccentricity and misalignment But companions required.. ...

Astronomy Discussion Forums . Forums: . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... Discussion Forums | ... Post . ... Alignment Of 2 Planets . ... Post Message | ... Jupiter was actually worshipped by Abraham in secret as the true God known as Jehovah. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Many massive planets contrary to Jupiter have large eccentricities of orbits. ... Another problem is to study the conditions and boundaries of stable, regular motions of small mass planet in systems having `Jupiter' with large orbital eccentricity as well as properties of regular, stable, and irregular, chaotic motions. ... The regular eccentricity evolution described above demonstrates that stable quasi--circular orbits of small planet are unusual. ...

... Science User Portal . ... For the first time, astronomers have been able to directly follow the motion of an exoplanet as it moves from one side of its host star to the other. ... Only 12 million years old, or less than three-thousandths of the age of the Sun, Beta Pictoris is 75% more massive than our parent star. ... This research was presented in a paper to appear this week in Science Express (тАЬA Giant Planet Imaged in the disk of the Young Star Beta Pictoris,тАЭ by A.-M. Lagrange et al.) ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Flights Chronology . ... ISS Russian Segment . ... News . ... Testing of such "fast" docking capability will allow the crews of transport manned vehicles "Soyuz ТМА" to arrive to the ISS during the first flight day, that, will primarily facilitate the process of crew adaption to space flight conditions. ... RSC Energia: Progress MS-02 docked with the ISS.' ... 2015 JSC "S.P. Korolev RSC "Energia" ...