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प्रश्न
Pluto is no longer a planet. Reason out.
उत्तर
- In August 2006, the International Astronomical Union (IAU) down-graded the status of Pluto to that of the dwarf planet.
- The three criteria of the IAU for a full-sized planet are
- It is in orbit around the Sun.
- It has sufficient Mass to assume nearly a round shape.
- It has cleared the neighborhood around its orbit.
- Since Pluto is able to meet only the first two of the criteria, it is no more a planet.
APPEARS IN
संबंधित प्रश्न
Fill in the blanks:
The planet which is farthest from the sun is _________.
Fill in the blanks:
A celestial body that revolves around a planet is known as a _________
Match items in column A with one or more items in column B.
| A | B | ||
| 1 | Inner planets | a | Saturn |
| 2 | Outer planets | b | Pole star |
| 3 | Constellation | c | Great Bear |
| 4 | Satellite of the Earth | d | Moon |
| e | Earth | ||
| f | Orion | ||
| g | Mars |
Boojho made the following sketch (Figure) of the solar system. Is the sketch correct? If not, correct it.
Say if the statement given below is right or wrong. Rewrite the statement after correcting them.
Venus is the planet closest to the sun.
Answer the following question briefly.
Name all the planets according to their distance from the sun.
Fill in the blanks.
Planets do not have their own________ and ___________________.
Which planet is called “Earth’s twin” and why?
The inner planets are also known as ______.
______ is the brightest heavenly body in our night sky.
