Starlink satellites seen after the first launch in may 2019.
Bright blue light in the sky.
If you ve looked up at the night sky recently you might have been surprised to see a train of bright lights moving.
At that time the blue tinted planet will be 4 light hours or 28 9 astronomical units from earth it will shine at a slightly brighter magnitude 7 8 and will be visible all night long in good.
Normally this effect is very slight.
But as a result the last coloured light that can be seen as the sun falls below the horizon is green.
What was that weird blue glow in the sky.
Naturally there was some speculation that perhaps the light was a ufo or even a meteor but in reality it was the launch of a trident ii d5 missile by.
At that time the planet in question is as close as it gets just 0 4 au so bigger and because it s 100 illuminated from our point of view it s as bright as it can be in our night sky.