You're seeing an animation that goes between an example of what you would see if you don't use this technique -- in other words, just a picture that shows the stars -- and the box is centered on the center of the galaxy, where we think the black hole is.
Teraz widać obraz jaki powstaje bez użycia tej techniki. Po prostu obraz gwiazd. Ramka jest nad centrum galaktyki, tam gdzie ma być czarna dziura.