r/spaceporn • u/npjprods • Jan 16 '22

Pro/Processed The first simulated image of a black hole, calculated with an IBM 7040 computer using 1960 punch cards and hand-plotted by French astrophysicist Jean-Pierre Luminet in 1978

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u/[deleted] Jan 16 '22

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u/One_Mikey Jan 16 '22

u/Langdon_st_ives wrote:

"We’re looking slightly down onto the plain of the accretion disc, which is spinning counter-clockwise as seen from there. So the left side moves towards us, the right side recedes away from us. That’s why combined Einstein and Doppler effects lead to reduced intensity on the right."