Fossil records suggest that starfish came about in the Cambrian period. This was about 500 to 570 million years ago. This is part of the Cambrian burst, a period of time when there was sudden explosion complex lifeforms on the planet.
sun is the closest star to earth .
The north star
It is the closet star to us.
Yes, a star appears brighter if it is closer to Earth because the brightness of a star we see is affected by its distance. The closer a star is, the greater the amount of light that reaches Earth, making it appear brighter in the sky.
A star can only appear to an observer on the dark side of the Earth, facing away from the Sun, so that the star's light can be seen.
This is because the Pole Star (i.e. Polaris, in the Northern hemisphere) is within a degree of the Earth's centre of rotation. That is, the north pole is in line with this particular star. Thus, as the Earth rotates, Polaris does not appear to move in the sky, and the rest of the stars appear to revolve around it.
That is one factor. The size of the star is the other.
because it is the closest to the earth
If the bright star is located farther away from Earth than the less bright star, it will appear dimmer due to the inverse square law of light intensity. The amount of light reaching Earth decreases with distance, so a closer, less bright star can appear brighter than a further, brighter star.
It depends on its intrinsic brilliance and its distance from the observer
The less a star appears to move, the farther it is from Earth. Stars that do not appear to move are very far away from Earth, making their apparent motion negligible from our perspective due to the vast distances involved in space.
1966