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brandonjm | 6 years ago
A digital camera is just an array of tiny sensors that detect how much light hit them and a computer takes those values and renders an image from them.
> you really think it's that bright?
If you take a photo in a dark room with increased exposure then the resulting image is brighter than what you see with your own eyes. This was taken over a long period of time, effectively a long exposure. If you were close enough to see it at the scale you are seeing it on your computer screen it would probably be far brighter.
> How about orange?
As mentioned in another comment on this thread, it's just the colour scheme used in the output to show the brightness differences. The accretion disk is not necessarily orange, this photo is essentially greyscale mapped to a black -> orange -> white scale.
This is just an array of relatively large sensors with very high exposure gathering information from something very far away and combining that data in greyscale.
> I wonder why it's not symmetrical?
See Veritasium's video [1] on why it looks like it does, in short, the effects of the black hole and our angle to the accretion disk.
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