Solar System

161.Which astronomer first saw the planet Saturn?
 
A. Galileo
 
B. copernicus
 
C. Ptolemy
 
D. Kepler
 
Option “A” is correct.
Saturn was the most distant of the five planets known to the ancients. In 1610, Italian astronomer Galileo Galilei was the first to gaze at Saturn through a telescope. To his surprise, he saw a pair of objects on either side of the planet.
162.The most distant planet visible to the naked eye is –
 
A. Jupiter
 
B. Saturn
 
C. Uranus
 
D. Pluto
 
Option “B” is correct.
Saturn, the most distant, bright naked-eye planet, lies 950 million miles from Earth at mid-month. Whenever I point out the planet Saturn to the public and tell them it’s nearly a billion miles away, they’re aghast
163.What is the number of rings found around the planet Saturn?
 
A. 6
 
B. 8
 
C. 7
 
D. 12
 
Option “C” is correct.
Saturn has the most spectacular ring system, with seven rings and several gaps and divisions between them.
164.The least dense planet in the solar system is –
 
A. Mercury
 
B. Venus
 
C. Earth
 
D. Saturn
 
Option “D” is correct.
Saturn has the lowest density of all the planets in our solar system. Its density is lesser than water and if you had large enough pool of water, Saturn would float. But mass of the Saturn is almost 95 times of the Earth.
165.Which is the second largest planet in the solar system?
 
A. Mercury
 
B. Venus
 
C. Saturn
 
D. Earth
 
Option “C” is correct.
Saturn is the sixth planet from the Sun and the second-largest planet in our solar system.
166.The largest satellite of the planet Saturn is –
 
A. Titan
 
B. Atlas
 
C. Telesto
 
D. Lapets
 
Option “A” is correct.
Titan, at 5,149 km diameter, is the second largest moon in the Solar System and Saturn’s largest.
167.Which of the following planets has a clear ring around it?
 
A. Uranus
 
B. Jupiter
 
C. Saturn
 
D. Mars
 
Option “C” is correct.
Saturn’s rings are the most extensive ring system of any planet in the Solar System, and thus have been known to exist for quite some time. Galileo Galilei first observed them in 1610, but they were not accurately described as a disk around Saturn until Christiaan Huygens did so in 1655.
168.Who discovered Uranus?
 
A. Herschel
 
B. Galileo
 
C. Copernicus
 
D. Kepler
 
Option “A” is correct.
Astronomer William Herschel Identifies Uranus as the Seventh Planet. Until 1781, the known solar system consisted of six planets.
169.Which planet is surrounded by the most gases?
 
A. Jupiter
 
B. Pluto
 
C. Uranus
 
D. Venus
 
Option “C” is correct.
Uranus are sometimes called the Gas Giants because so much of the mass of these planets consists of a gaseous atmosphere.
170.How many satellites does Uranus have?
 
A. 27
 
B. 18
 
C. 10
 
D. 12
 
Option “A” is correct.
Uranus has 27 known moons, and they are named after characters from the works of William Shakespeare and Alexander Pope.

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