A window to the past?
Heya guys! So I was reading an article –
"Why do all stars not shine with the same intensity?" and you know what I came to know?
It's written here that - "There are two reasons why this happens. Firstly, the stars are at different distances from the Earth(Okay I know this). Secondly, their luminosity depends on their age. Young stars are bright, hot and shine bluish-white, and older stars which have already given out a lot of their energy are red in colour and are cooler. Our sun is middle aged (about 4.8 billion years old), with a temperature of around 5500°C on its surface, and a yellow shine(Okkie I know this too). Stars are like a window to the past. If A Star is 10 light years away, it's light takes 10 years to reach us. Consequently, we see the star not as it is 'now', but as it was 10 years ago!"
Woah! I certainly didn't know that! 😅
Well as a wise person once said - "You always get to learn something new everyday!" And I love learning about new things everyday!! Hehe 😁😁
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