مشاهده می شود که فوتون قرمز با انرژی کم به سیاه چاله نزدیکمی شود، مسیر آن خمیده شده و رنگ آن تغییر می کند

[We see some 'red' photons (with low energy) approaching the
Black Hole. The outer tracks are just bended, but still changed
in color (they are temporarily orange and even yellow) before
they leave the gravitational field where they are redshifted.]

Rotation: a=0.2

گردش سیاه چاله نیز روی نور اثر می گذارد

[Because of the non-zero value of a, one can begin to see the
asymmetry arising from the rotation.]

Rotation: a=0.4

سیاه چاله به سمت راست می گردد

[You can now begin to observe the 'turn-off' effect, where photons
are dragged in the right (rotation-) direction even if they start
in the other direction.]

Rotation: a=0.6

Rotation: a=0.8

Rotation: a=1.0

نور از سمت چپ وارد می شود و رنگ آن به سمت آبی جابجا می شود

[The photons coming in from the left are blueshifted (if you are following them!).
At the horizon, they are shifted through the blue, and into the far ultra-violet
(showed as violet for clarification). The violet horizon-sphere is shrinked slightly
for better view of the inner circles.]