... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

... 14.05.2015 . ... Credit Copyright: Damian Peach / SEN Explanation: In this sharp snapshot, the Solar System's largest moon Ganymede poses next to Jupiter, the largest planet. Captured on March 10 with a small telescope from our fair planet Earth, the scene also includes Jupiter's Great Red Spot, the Solar System's largest storm. In fact, Ganymede is about 5,260 kilometers in diameter. ... Though its been shrinking lately , the Great Red Spot's diameter is still around 16,500 kilometers. ...

... 2015 May 15 . Jupiter, Ganymede, Great Red Spot . ... Explanation: In this sharp snapshot, the Solar System's largest moon Ganymede poses next to Jupiter, the largest planet. Captured on March 10 with a small telescope from our fair planet Earth, the scene also includes Jupiter's Great Red Spot, the Solar System's largest storm. In fact, Ganymede is about 5,260 kilometers in diameter. ... Though its been shrinking lately , the Great Red Spot's diameter is still around 16,500 kilometers. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Monthly Sky Notes . ... October . ... By admin October 8, 2010 Posted in: Monthly Sky Notes . A giant from close up: an image made using data from the Cassini probe which flew past Jupiter in 2000. ... As it is so far from us, it takes JupiterтАЩs light a significant time to reach us тАУso when you see Jupiter tonight you are seeing it as it was 35€а minutes in the past. ... Posted October 12, 2010 at 11:15 PM . ... Astronotes . ...

Saturn: The beauty of the rings. Saturn . ... Belongs to the giant planets . It has no definite solid surface. ... The free fall acceleration at the Saturn surface near equator is 9,06 m/s^2 . ... In the centre of the planet the temperature is about 20000K. The satellites . ... The rings of Saturn . ... It is proved that Saturn's rings (as well as the other planet's) are the fragments of the great cloud being near the planet with million kilometres length (see how the rings were formed ). ...

... Earth is the tiny spot between Jupiter and the Sun). ... Distance Radius Mass Name Orbits (000 km) (km) (kg) --------- ------- -------- ------- ------- Sun 697000 1.99e30 Jupiter Sun 778000 71492 1.90e27 Saturn Sun 1429000 60268 5.69e26 Uranus Sun 2870990 25559 8.69e25 * Neptune Sun 4504300 24764 1.02e26 * Earth Sun 149600 6378 5.98e24 Venus Sun 108200 6052 4.87e24 Mars Sun 227940 3398 6.42e23 Ganymede Jupiter 1070 2631 1.48e23 + Titan ... Extrema .. ...

... 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. ...

Determination of mass of Jupiter and that of some minor planets from observations of minor planets moving in 2:1 commensurability with Jupiter Olga M. Ko chetova and Yulija A. Chernetenko Institute of Applied Astronomy, St. Petersburg, Russia September 19, 2000 Keywords: Jupiter 's mass , asteroid's masses , observations of minor planets Great numb er of observations of minor ... Hoffmann (1989) p ointed out the fruitfull of that approach. ... Table II. ...

... 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 . ...

... Jupiter is our Solar System?s very own superhero. The giant planet is two and a half times more massive than all the rest of the planets in our Solar System combined. And with great mass, comes great gravity. With the power of super-strong gravity, Jupiter plays a heroic role in our Solar System, protecting life on Earth. ... Unfortunately, we have found lots of solar systems with massive planets that lie close to their star, but not so many that lie far away, like Jupiter. ...

... Apr 14, 2016 - Monthly Meeting . ... The Amateur Telescope Makers of Boston, Inc. ATMoB) is an astronomy club devoted to telescope making, observing, and studying the heavens. ... CURRENT MOON . ... April Sky . ... Lyrids Meteor Shower . ... Sources: NASA JPL Space Calendar , StarDate Online , Sky Telescope , Harvard-Smithsonian Center for Astrophysics , RASC Observer’s Handbook , Abrams Planetarium Sky Calendar and Astronomy Magazine . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

The planets Jupiter and Venus will make an apparent close approach to each other on the early morning of Friday, 5th November. When Jupiter rises above the eastern horizon at 4.07 a.m. for Northern Ireland viewers, it will be just about one Moon-width away from the much more brilliant Venus. ... In reality, a vast distance will separate the planets. ... FOR FURTHER INFORMATION CONTACT: John McFarland at the Armagh Observatory, College Hill, Armagh, BT61 9DG. ...

... 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! ...

ST ScI Preprint #1390 . Authors: S. H. Lubow, 1 M. Seibert, 1,2 P. Artymowicz 3 We analyze the nonlinear, two-dimensional response of a gaseous, viscous protoplanetary disk to the presence of a planet of one Jupiter mass (1 M J ) and greater that orbits a 1 M star by using the ZEUS hydrodynamics code with high resolution near the planet's Roche lobe. ... The gap partitions the disk into an inner (outer) disk that extends inside (outside) the planet's orbit. ...

Computer Ephemeris for 2014 from DE200/LE200. ... Date Planets Time dif(delta) Phenomena Jan 1 Sun Moon 11:15 -435 Conjunction 1 Pluto Moon 12:00 -152 Conjunction 1 Mercury Moon 15:42 -636 Conjunction 1 Pluto Sun 18:55 244 Conjunction 2 Venus Moon 11:47 -201 Conjunction 5 Neptune Moon 1:41 -523 Conjunction 5 Jupiter Sun 21:13 8 Opposition 7 Mercury Venus 10:30 -626 Conjunction 7 Uranus Moon 13:31 -303 Conjunction 11 Venus Sun 12:26 511 Lower Conjunction 15 Jupiter Moon 6:09 453 ...

... There has been a heated public discussion in the past few years about whether our ninth planet is really deserving of the name. Since Pluto orbits a star, and is much less luminous, it certainly satisfies the definition we have above. The problem is actually not with Pluto, but with a very large number of other bodies in our Solar System which also satisfy this definition, but which are not called planets. Perhaps the most notable of these is Ceres, the largest asteroid. ... Planet . ...

... Parent Directory - nikon_1290045674_ jupiter _0p02s_12800iso.jpg 2010-11-17 21:02 2.7M nikon_1290045810_ jupiter _0p001s_3200iso.jpg 2010-11-17 21:03 2.2M nikon_1290045810_ jupiter _0p001s_3200iso_sum.jpg 2010-11-18 12:18 6.1K nikon_1290045844_ jupiter _0p001s_3200iso.jpg 2010-11-17 21:04 2.2M nikon_1290045854_ jupiter _0p001s_3200iso.jpg 2010-11-17 21:04 2.2M nikon_1290045864_ jupiter _0p001s_3200iso.jpg ...

Pulkovo Database of Observations of Planets and Their Satellites . Select object, time interval and type of observations . ... First year (optional) . Last year (optional) . ... satellite relative to planet . satellite relative to another satellite . ... Select database . ...

... The planets differ greatly in size and properties, and their fields differ too. ... In 1959, after the Earth's radiation belt had been discovered, Frank Drake observed Jupiter and concluded from the relative intensities in a range of wavelengths that the signal was probably emitted by electrons trapped in a strong magnetic field. Then in 1973 the space probe Pioneer 10 passed by Jupiter and found there, sure enough, an enormous planetary magnetic field and a very intense radiation belt. ...

... User Guide ] Task: planets Purpose: Print ephemerides of planets and the Sun. Categories: utility PLANETS is a MIRIAD task to report some parameters on solar system objects. ... Key: source This can be "sun" or the name of a major planet (excluding the Earth). ... No default. Key: epoch The time (UTC) for which information is required, in standard Miriad time format (yymmmdd.ddd or yymmmdd:hh:mm:ss.s). ... Key: telescop The name of an observatory used in computing rise and set times. ...