Re:China on Mars: Zhurong rover returns first pictures
by coldcode on Wednesday May 19, 2021 @09:59AM
(#27208703)
What is the map projection called in that map from NASA?
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Re:China on Mars: Zhurong rover returns first pictures
by DiogenesKynikos on Wednesday May 19, 2021 @10:32AM
(#27209179)
It's a completely standard Cartesian projection (x = longitude, y = latitude), but with nonsense graticules plotted on top. I think BBC took a NASA image of Mars and added their own graticules and landing-site labels. Compare the BBC image with these two NASA images:
* BBC: https://ichef.bbci.co.uk/news/976/cpsprodpb/825B/production/...
* NASA base map of Mars: https://astrobiology.nasa.gov/uploads/filer_public_thumbnail...
* NASA landing sites: https://mars.nasa.gov/resources/24729/map-of-nasas-mars-land...
Re:China on Mars: Zhurong rover returns first pictures
by tantalor on Wednesday May 19, 2021 @10:27AM
(#27209116)
It basically looks like equirectangular and modified with pointy poles.
https://en.wikipedia.org/wiki/Equirectangular_projection
Maybe it is just regular equirectangular but the lines are drawn weird.
Re:China on Mars: Zhurong rover returns first pictures
by OmicronCeti on Wednesday May 19, 2021 @11:24PM
(#27217027)
It looks like the equirectangular Mars projection. Details can be found on the HiRISE or THEMIS sites.