Starlink satellites seen after the first launch in may 2019.
Bright blue light in the night sky.
Beta the interactive night sky map simulates the sky above new york on a date of your choice.
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 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.
Last night a mysterious light lit up the skies over california leaving people as far east as louisiana perplexed.
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.
Use it to locate a planet the moon or the sun and track their movements across the sky.
Unlike stars they generally don t twinkle as they have an apparent diameter large enough that the effect of turbulence in the earth s atmosphere averages out.
The map also shows the phases of the moon and all solar and lunar eclipses.