Latest hydrogen radio map (1420MHz) Milky Way from LRO 20/12/23
Maps from latest data set 20/12/2023 (plots from ezCon ezGal and ezSky) – galaxy maps and uncorrected rotation curves for Milky Way:
astronomy.network The Website of Lichfield Radio Observatory (LRO)
Andrew Thornett, Lichfield, England, M6THO, andrew (at) thornett (dot) net