This map is quite something. I don’t get how they’ve figured out it’s a barred spiral and other such details. Need to look it up sometime.
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My latest full galaxy map is now up. This has parallax data (masers plus Gaia star density and objects with Gaia-derived distances like clusters and some HII regions) combined with infrared and radio data sets that use kinematic distance estimates. Link: gruze.org/full_map
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