Fitxategi:Event Horizon Telescope and Apollo 16.png

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English: A series of images representing the magnification achieved by the Event Horizon Telescope to produce its debut image of the supermassive black hole of M87. The top-left image approximates the field of view of the human eye from Earth. Each successive image (moving counter-clockwise) is magnified ~19.3x that of the previous, closing-in on the position of the Lunar Roving Vehicle (LRV) of Apollo 16, and ending at the top-right with the black hole image (which is, coincidentally, at almost exactly one-billion-power magnification relative to the first image).

The second-to-last step is of John Watts Young next to the LRV of Apollo 16 (because I found no useful bird's eye view of the moon at that zoom level) scaled appropriately so that the view is wide enough for about half the wheelbase of the LRV (as calculated for this step). The famous black hole image is artistically superimposed in Young's glove, as though he were holding a tennis-ball sized black hole.

19.3x per step was calculated from dividing the angular diameter of the Moon by that of the ring around M87's supermassive black hole, respectively, 34 arcminutes and 40 microarcseconds[1], and then taking the 6th root of that value (since there are 6 zoom steps after the whole-moon-only step).
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The following are the images sources listed in order with step 0 at top left corner, moving counter-clockwise, to step 7 at top right corner. Images have been carefully rotated and scaled (can't believe how many hours I spent hunting for creative-commons-compatible images, looking at maps of the Moon, and lining up craters).

Step 0: File:2016.07.18.-65-Westensee bei Nacht Felde.jpg

Step 1: File:FullMoon2010.jpg

Step 2: File:Mare Nectaris (LRO).png

Step 3: AS16-P-4558 (NASA/JSC/ASU)

Steps 4 & 5: M175179080LR (NASA/JSC/ASU)

Step 6: AS16-117-18818 (NASA/JSC)

Step 7: File:Black hole - Messier 87 crop max res.jpg
Egilea Codehydro (Alexander Zhikun He)
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This image or video was catalogued by one of the centers of the United States National Aeronautics and Space Administration (NASA) under Photo ID: AS16-P-4558.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.
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  1. https://www.syfy.com/syfywire/ring-of-material-around-m87-supermassive-black-hole-changing

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A series of images representing the magnification achieved by the Event Horizon Telescope to produce its debut image of the supermassive black hole of M87 (as though trying to see a tennis-ball-sized object on the moon).

22 azaroa 2020

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Data/OrduaIruditxoaNeurriakErabiltzaileaIruzkina
oraingoa14:44, 3 urria 202114:44, 3 urria 2021 bertsioaren iruditxoa2.316 × 4.632 (8,05 MB)Codehydroadjusted crop and interpolation of step 5
02:37, 3 urria 202102:37, 3 urria 2021 bertsioaren iruditxoa2.316 × 4.632 (8,03 MB)CodehydroReworked using higher resolution images and adjusted scaling of steps 4 & 5 (scaling was off 21% before; higher resolution made it easier to see and measure the error)
00:58, 23 azaroa 202000:58, 23 azaroa 2020 bertsioaren iruditxoa774 × 1.548 (4,58 MB)CodehydroUploaded own work with UploadWizard

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