We could not explain it!
I lived on the 19th floor of an apartment building, myself & two others were enjoying the view on my belcony when I saw 3 red lights in the formation of a triangle moving without sound from the East right past us at about 500 to 1000 feet. As a private pilot I have an idea of altitude & speed through the air.
It looked to be moving at around 100 to 150 kts.The three red lights went past us about 200 to 1000ft away from the building then turned to the North.
But they turned as if they were one object maintaining this shape all the way.
They made the turn flat not banked like an aircraft would.
I said to my two friends do you see that? They didn't at first until I pointed right at it as it past by us.
Then they said yes we see it.
We could see the stars in the sky in between them, they apeard to be three seperet objects but they moved at the exact same time & speed as they turned & they kept the same distance from each other.
As they headed North they apeared to pick up speed to what looked like over 300 knots & faded as they got farther away.
That night it was calm and clear skies.
They again made no sound, no wind from passing us & no exhaust of any kind.
It was not something we could explain & it gave me goose bumps.
I found it to be more fastinating than scary.