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Neptune is the eighth planet from the Sun and the fourth largest (by diameter). Neptune is smaller in diameter but larger in mass than Uranus. orbit: 4,504,000,000 km (30.06 AU) from Sundiameter: 49,532 km (equatorial)mass: 1.0247e26 kg In Roman myth...

Neptune is the eighth planet from the Sun and the ...

Uranus is the seventh planet from the Sun and the third largest (by diameter). Uranus is larger in diameter but smaller in mass than Neptune. orbit: 2,870,990,000 km (19.218 AU) from Sundiameter: 51,118 km (equatorial)mass: 8.683e25 kg Careful pronun...

Uranus is the seventh planet from the Sun and the ...

In 2006, the IAU decided to create a new classification category for solar system objects called "dwarf planets" that is distinct from "planets". Pluto was reclassified as a dwarf planet. At present there are only four other members of this category,...

In 2006, the IAU decided to create a new classific...

Saturn is the sixth planet from the Sun and the second largest: orbit: 1,429,400,000 km (9.54 AU) from Sundiameter: 120,536 km (equatorial)mass: 5.68e26 kg In Roman mythology, Saturn is the god of agriculture. The associated Greek god, Cronus, was th...

Saturn is the sixth planet from the Sun and the se...

Jupiter is the fifth planet from the Sun and by far the largest. Jupiter is more than twice as massive as all the other planets combined (the mass of Jupiter is 318 times that of Earth). orbit: 778,330,000 km (5.20 AU) from Sundiameter: 142,984 km (e...

Jupiter is the fifth planet from the Sun and by fa...

Deimos ("DEE mos") is the smaller and outermost of Mars' two moons. It is one of the smallest known moons in the solar system. orbit: 23,459 km from Marsdiameter: 12.6 km (15 x 12.2 x 11)mass: 1.8e15 kg In Greek mythology, Deimos is one of the sons o...

Deimos ("DEE mos") is the smaller and outermost of...

Phobos ("FOH bus") is the larger and innermost of Mars' two moons. Phobos is closer to its primary than any other moon in the solar system, less than 6000 km above the surface of Mars. It is also one of the smallest moons in the solar system. orbit: ...

Phobos ("FOH bus") is the larger and innermost of ...

Are there planets orbiting other stars beyond our solar system? We do not know for sure, but with the recent discoveries about 51 Pegasi, 70 Virginis and 47 Ursae Majoris the weight of evidence is now so strong that only a "devil's advocate" denies t...

Are there planets orbiting other stars beyond our ...

Many small irregular jovian satellites have been discovered recently. Many new moons of Saturn and Uranus are also showing up.Callirrhoe (S/1999 J1) was discovered by the Spacewatch project and the Minor Planet Center in 2000 from images taken in 199...

Many small irregular jovian satellites have been d...

Callisto ("ka LIS toh") is the eighth of Jupiter's known satellites and the second largest. It is the outermost of the Galilean moons. orbit: 1,883,000 km from Jupiterdiameter: 4800 kmmass: 1.08e23 kg Callisto was a nymph, beloved of Zeus and hated b...

Callisto ("ka LIS toh") is the eighth of Jupiter's...

Ganymede ("GAN uh meed") is the seventh and largest of Jupiter's known satellites. Ganymede is the third of the Galilean moons. orbit: 1,070,000 km from Jupiterdiameter: 5262 kmmass: 1.48e23 kg Ganymede was a Trojan boy of great beauty whom Zeus carr...

Ganymede ("GAN uh meed") is the seventh and larges...

Europa ("yoo ROH puh") is the sixth of Jupiter's known satellites and the fourth largest; it is the second of the Galilean moons. Europa is slightly smaller than the Earth's Moon. orbit: 670,900 km from Jupiterdiameter: 3138 kmmass: 4.80e22 kg Europa...

Europa ("yoo ROH puh") is the sixth of Jupiter's k...

Io ( "EYE oh" ) is the fifth of Jupiter's known satellites and the third largest; it is the innermost of the Galilean moons. Io is slightly larger than Earth's Moon. orbit: 422,000 km from Jupiterdiameter: 3630 kmmass: 8.93e22 kg The pronunciation "E...

Io ( "EYE oh" ) is the fifth of Jupiter's known sa...

The title The Nine Planets is somewhat misleading. In addition to the (eight) planets and their satellites the solar system contains a large number of smaller but interesting objects.There are thousands of known asteroids and comets and undoubtedly m...

The title The Nine Planets is somewhat misleading....

Mars is the fourth planet from the Sun and the seventh largest: orbit: 227,940,000 km (1.52 AU) from Sundiameter: 6,794 kmmass: 6.4219e23 kg Mars (Greek: Ares) is the god of War. The planet probably got this name due to its red color; Mars is sometim...

Mars is the fourth planet from the Sun and the sev...

The Moon is the only natural satellite of Earth: orbit: 384,400 km from Earthdiameter: 3476 kmmass: 7.35e22 kg Called Luna by the Romans, Selene and Artemis by the Greeks, and many other names in other mythologies.The Moon, of course, has been known ...

The Moon is the only natural satellite of Earth: o...

Earth is the third planet from the Sun and the fifth largest: orbit: 149,600,000 km (1.00 AU) from Sundiameter: 12,756.3 kmmass: 5.972e24 kg Earth is the only planet whose English name does not derive from Greek/Roman mythology. The name derives from...

Earth is the third planet from the Sun and the fif...

Venus is the second planet from the Sun and the sixth largest. Venus' orbit is the most nearly circular of that of any planet, with an eccentricity of less than 1%. orbit: 108,200,000 km (0.72 AU) from Sundiameter: 12,103.6 kmmass: 4.869e24 kg Venus ...

Venus is the second planet from the Sun and the si...

Mercury is the closest planet to the Sun and the eighth largest. Mercury is slightly smaller in diameter than the moons Ganymede and Titan but more than twice as massive. orbit: 57,910,000 km (0.38 AU) from Sundiameter: 4,880 kmmass: 3.30e23 kg In Ro...

Mercury is the closest planet to the Sun and the e...

Our Sun is a normal main-sequence G2 star, one of more than 100 billion stars in our galaxy. diameter: 1,390,000 km. mass: 1.989e30 kg temperature: 5800 K (surface) 15,600,000 K (core) The Sun is by far the largest object in the solar system. It cont...

Our Sun is a normal main-sequence G2 star, one of ...

Fisq as a term means disobedience to the obligatory commands of Islamic Shari'ah or committal of acts forbidden by it; its opposite is ita'ah (obedience) to the commands of God, the Supreme. A major part of the Divine commands consists of specific fo...

Fisq as a term means disobedience to the obligator...