During modern observation of Saturn, we have sent four missions (Pioneer-11, Voyager-1, Voyger-2 and Cassini-Huygen) to the planet. Among these, Cassini was made to study the Saturn and its moons.
Cassini was sent on October 15, 1997 to Saturn and reached at its orbit on 1st July 2004. It orbited the planet for 13 years. On arriving at Saturn, Cassini’s first work was to send its ring photos to earth. Saturn’s ring is divided into seven different parts and each part is named in seven different alphabets (A to G).
Saturn’s ring is made of small ice particles and rocks. As these small ice particles reflect the sunlight, so its ring looks bright. Many scientists have given different theories about how has Saturn’s ring made? But Cassini’s data suggests that Saturn’s ring is developed many years after origin of Saturn. Along that Cassini showed that the ring is destroyed so rapidly. As Saturn’s ring is made of small ice particles, so meteors and UV rays of sunlight are hitting those ice particles and due to which those particles are converted to charged water particles. Those charged water particles are raining on Saturn’s atmosphere through magnetosphere of it. This rain is known as Ring’s rain. From calculation, it is found that the ring will remain for next 10 cores years.
This planet has 62 known moons of which 53 are officially named. The planet is about 1.2 billion kms away from earth which is nearly twice the distance between earth and Jupiter. Saturn’s biggest moon ‘Titan’ possesses above 90% of mass of the objects that orbiting it i.e. Titan is the heaviest body among the objects orbiting Saturn.
When Cassini went to the north pole of Saturn, it found a hexagonal wind which was also seen by Voyager-1 for first time. This hexagonal wind so big that the whole earth can be immersed within it.
Saturn is a gas giant and its atmosphere contains 96.3% hydrogen, 3.25% helium and rest percent are ammonia, acetylene, ethane, propane, phosphine and methane. Saturn is so big that nearly 764 earths are needed to fill up it. But funniest thing is that the density of Saturn is very less than that of water i.e. it will float on water if it is kept on a biggest ocean. Saturn’s magnetosphere produces aurora which we notice at two poles of Saturn. Saturn’s interior temperature is 11,700°C which is twice of the temperature of the Sun’s surface, while its surface temperature is -178°C.
Cassini-Huygen probe helped us for study about Saturn for nearly 20 years. And finally on 15th September, it was fallen in to Saturn’s atmosphere.
please comment about this article and subscribe this channel (WORLDPHYSICS) for more new articles.