How does a Boeing 737 look like at night from 2000 meters away? I am asking about the current crash of a Boeing 737-800. Due to the unfortunate crash of Ukrainian 752, I am trying to figure out what can be seen from the launch pad when they decided to shoot the plane. I determined the plane was at 4620 ft AGL and climbing. According to my calculations, the line of sight distance from the operator to the plane was 2058 meters = 6729 ft away.

So I want to know how a 737-800 looks like from the ground 6729 ft away at night. 

I would like to know if it is possible to mistake a 737-800 for anything else from that distance at the night time with full visibility. Can anyone provide a picture of that?
At night, at that range, it will look about like a dot of light, probably with a red flashing beacon and white flashing strobe lights. 

That's what you'll see from essentially every aircraft at that range at night, unless the pilot chooses to turn off some or all lights. 

But you're seeing the LIGHTS, not the AIRCRAFT, at that distance, and the ability to visually identify what aircraft it is, is essentially nil.