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Topic: Jovian planet

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	Gas giant - Wikipedia, the free encyclopedia
		Gas giants may have a rocky or metallic core—in fact, such a core is thought to be required for a gas giant to form—but the majority of its mass is in the form of the gases hydrogen and helium, with traces of water, methane, ammonia, and other hydrogen compounds.
		Unlike rocky planets, which have a clearly defined difference between atmosphere and surface, gas giants do not have a well-defined surface; their atmospheres simply become gradually denser toward the core, perhaps with liquid or liquid-like states in between.
		The alternative term "Jovian planet" refers to the Roman god Jupiter—a form of which is Jovis, hence Jovian—and was intended to indicate that all of these planets were similar to Jupiter.
	en.wikipedia.org /wiki/Jovian_planet (1475 words)

	Terrestrial planet - Wikipedia, the free encyclopedia
		A terrestrial planet or telluric planet is a planet that is primarily composed of silicate rocks.
		Terrestrial planets are substantially different from gas giants, which may not have solid surfaces and are composed mostly of some combination of hydrogen, helium, and water existing in various physical states.
		Terrestrial planets possess secondary atmospheres -- atmospheres generated through internal vulcanism or comet impacts, as opposed to the gas giants, which possess primary atmospheres -- atmospheres captured directly from the original solar nebula.
	en.wikipedia.org /wiki/Terrestrial_planet (781 words)

	Unit II- Jovian Planets
		The Jovian planets are far from the Sun and therefore receive less solar energy than the terrestrial planets.
		At atmosphere is a layer of gas that is gravitationally bound to a planet.
		The terrestrial planets have atmospheres that are composed of heavy gasses.
	student.ccbcmd.edu /courses/astm101c/unit2/terjov2.html (663 words)

	Highbeam Encyclopedia - Search Results for Jovian (Site not responding. Last check: 2007-11-01)
		Jovian JOVIAN [Jovian] (Flavius Claudius Jovianus), c.331-364, Roman emperor (363-64).
		The terrestrial planets in the solar system are the earth, Mercury, Venus, and Mars ; Pluto is sometimes also classified as a terrestrial planet.
		planet PLANET [planet] [Grwanderer], a large nonluminous ball of rock or gas that orbits a star.
	www.encyclopedia.com /articles/06741.html (615 words)

	MIRA :: Field Trips to the Stars :: The Solar System
		Marking the boundary between the terrestrial planets and the massive gas giants is the asteroid belt.
		All of the jovian planets are accompanied by satellites.
		Comets that stray into the into the inner (planetary part) of the solar system are often gravitationally "captured" by a jovian planet causing them to have smaller orbits and highly shortened periods.
	www.mira.org /fts0/planets/text/txt000z.htm (1615 words)

	Jupiter (Site not responding. Last check: 2007-11-01)
		These particles and fields comprise the jovian magnetosphere or magnetic environment, which extends 3 to 7 million kilometers (1.9 to 4.3 million miles) toward the Sun, and stretches in a windsock shape at least as far as Saturn's orbit - a distance of 750 million kilometers (466 million miles).
		The mosaic is composed of 27 images: nine images were required to cover the entire planet in a tic-tac-toe pattern, and each of those locations was imaged in red, green, and blue to provide true color.
		The prominent dark band in the northern half of the planet is the location of Jupiter's fastest jet stream, with eastward winds of 480 kilometers (300 miles) per hour.
	planetscapes.com /solar/eng/jupiter.htm (2771 words)

	Planets (Site not responding. Last check: 2007-11-01)
		Much of what we know about the outer planets of the solar system is because of spacecraft that were sent out to study these planets.
		As with Jupiter, the gas of the atmosphere gradually transitions to the liquid of the planet.
		Or it could be because magnetic field originates, not in the core of the planet, but in an electrically conducting shell outside the core of the planet.
	www.goshen.edu /nasc/NaSc200/Notes/JovianPlanets/Jovian.html (4022 words)

	SPACE.com -- Likely First Photo of Planet Beyond the Solar System
		That possible planet has not been confirmed and could be a dim star in the background of the picture.
		Otherwise, all of the more than 120 known extrasolar planets have been detected indirectly, by noting the shadow of a planet crossing in front of a star or a planet's gravitational effect on a star.
		But in contrast to how planets probably developed in our solar system, he does not think the planet was born out of the brown dwarf's disk.
	www.space.com /scienceastronomy/planet_photo_040910.html (876 words)

	Jovian Planets, Aurora
		The reflected sunlight from a planet also shows atmospheric compositional properties, such from the absorption signatures of simple and complex hydrocarbons present in the Jovian planet stratospheres, and also from the scattering properties of molecules and hazes.
		Major fundamental discoveries on the atmospheres of the Jovian planets were made in the 1980s with the UVS instrument on the Voyager spacecraft (built by researchers at the Univ. of Arizona).
		Sketch of the magnetosphere of Saturn, from Bagenal (1992).
	vega.lpl.arizona.edu /~gilda/jovianplanets.html (2989 words)

	PLANET Microlensing Collaboration Homepage
		Since extended caustics, which are characteristic for lens binaries or multiples (including stars orbiting planets), form closed curves, caustic passages occur in pairs of entries and exits, provided the size of the caustics exceeds the angular size of the observed source star.
		In PLANET Anomaly Alert 2006 #10 (issued 18-Jul, 13:45 UT), we reported that the the first three points show a rise by 0.35 mag during 1.6 hrs at increasing slope, while the fourth point is about 0.9 mag below the preceding one.
		PLANET data collected with the Canopus 1.0m (near Hobart, Tasmania) allows to determine the beginning of the caustic entry to have occured at HJD=2453918.22 +/- 0.02 (1-Jul, 17:20 UT +/- 50 min).
	planet.iap.fr (2781 words)

	The Jovian Planets
		In other words, whereas most planets, including Earth, spin almost directly up and down with respect to their orbital path, Uranus has been pushed over on its side and is spinning with its north or south pole occasionally pointing directly at the sun.
		Half of the planet has almost constant heating for half the year, whereas most planets have the entire planet covered with partial heating over very short periods of rotation.
		This odd rotation was probably caused by the impact of a large object early in the formation of the planet.
	www.astromax.com /aaaa/astrocourse/jovian.htm (1452 words)

	A jovian planet orbiting 70 Virginis (Site not responding. Last check: 2007-11-01)
		About 78 light years from the Earth astronomers believe that there is a large planet orbiting 70 Virginis, a type G5V star (similar to our own sun).
		Designated 70 Vir B, this planet is believed to have over six times the mass of the planet Jupiter and orbits around its sun in an eccentric orbit once every 116 days.
		Saturn is the planet best-known for its rings of ice and stone, but all the other jovian planets in our solar system (Jupiter, Uranus and Neptune) have rings as well.
	www.arcadiastreet.com /cgvistas/exo_020.htm (212 words)

	Planet Page 1
		They are like that because the planets near the sun were subjected to massive amounts of heat, and as a result they were molded together into dense balls of matter.
		The planets' orbits are all on the same plane of orbit except Mercury, and Venus.
		The planet is cold and dense with a rocky core.
	www.scarborough.k12.me.us /high/projects/geoscience4/astro/planet1.htm (1943 words)

	superior planet Comparison Table (Site not responding. Last check: 2007-11-01)
		It is more massive than all other planets and satellites combined; if it were about 80 times more massive, it would become self-luminous due to fusion reactions.
		The heat flux to from the center to the surface is mainly convective.
		Its orbit has the highest eccentricity and highest inclination to the ecliptic of any planet and some astronomers suggest that it may be an escaped satellite of Neptune.
	www.site.uottawa.ca:4321 /astronomy/superiorplanet_table.html (455 words)

	Summary
		These differences arose because all four planets started from ice-rich planetesimals of about the same size, but captured different amounts of hydrogen and helium gas from the solar nebula.
		The jovian planets all have multiple cloud layers that help determine the colors of the planets, fast winds, and large storms.
		Most of the medium-size and large moons probably formed with their planet in the disks of gas that surrounded the jovian planets when they were young.
	www.physics.sfasu.edu /astro/courses/ast105/summary8.htm (416 words)

	Chapter 9 Jovian Planet Systems (Site not responding. Last check: 2007-11-01)
		The core is the densest part of a planet as a result of differentiation and atmospheric capture of hydrogen and helium from the nebula due to gravity
		Trace gasses reveal the planets’ reflected color patterns and turbulent storms, e.g.
		Of the jovian worlds, Jupiter and Saturn have enough of 1) and 2) metallic hydrogen, to generate a gigantic magnetic shield against the solar wind and other charged particles from outer space.
	www.accd.edu /sac/astronom/Astr1370/bennett9.htm (492 words)

	A jovian planet in the tau Boötes system (Site not responding. Last check: 2007-11-01)
		Astronomers believe that there is a large planet orbiting very close to tau Boo A, a type F7V star about 50 light years from the Earth.
		Designated tau Boo C, this planet is believed to have about four times the mass of the planet Jupiter and orbits around its sun at the astonishing pace of once every 3.3 days.
		In this image tau Boo C rises over the airless, baked and battered terrain of a hypothetical moon.
	www.arcadiastreet.com /cgvistas/exo_010.htm (150 words)

	Planet Quest: Glossary
		Jupiterlike planet with a large diameter and low density.
		In our solar system the Jovian planets are: Jupiter, Saturn, Uranus and Neptune.
		Planets around others stars are called extrasolar planets.
	planetquest.jpl.nasa.gov /glossary/j.cfm (48 words)

	[No title]
		Which planet’s orbit, Mars or Uranus, is closer to the ecliptic plane?
		Although there will not be any calculations on Exam 1, attempting such problems may help to better understand the important laws of planetary motion and gravity.
		Use Kepler’s 3rd Law to calculate the orbital period of the planet Uranus.
	www2.sunysuffolk.edu /pappasm/AST101/planet_properties_practice.doc (302 words)

	Jovian - Wiktionary
		of, or relating to Jupiter (either Roman deity or planet), or to the Jovian planets
		(science fiction) An imaginary inhabitant of the planet Jupiter.
		This page was last modified 23:58, 5 June 2006.
	en.wiktionary.org /wiki/Jovian (41 words)

	naked eye planet Comparison Table (Site not responding. Last check: 2007-11-01)
		physical object > natural object > celestial body > planet > naked eye planet
		Next planet: proto-planet Up: planet Previous planet: gas giant
		0.7233 AU Next planet: proto-planet Up: planet Previous planet: gas giant
	www.csi.uottawa.ca:4321 /astronomy/nakedeyeplanet_table.html (431 words)

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