Practicing Success
The period of one revolution of Sun around the centre of Milky way galaxy is called as? |
Solar year Cosmic year Galactic Year Both 2 and 3 |
Both 2 and 3 |
The correct answer is Option (4) - Both 2 and 3 The galactic year, also known as a cosmic year, is the duration of time required for the Sun to orbit once around the center of the Milky Way Galaxy. One galactic year is 230 million Earth years. |