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Click a feature to center on it
Features in view
Near the central meridian
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Mercury ephemeris for your location
Position
RA--
Dec--
Dist--
Ang. ∅--
Const--
Alt--
Az--
Mag--
Mercury geometry
CML (E)--
CML (W)--
Sub-Earth lat--
Axis PA--
Phase ∅--
Illum.--
CML is the longitude (east-positive) of the meridian facing Earth. Surface imagery is the NASA Mercury Trek MESSENGER MDIS mosaic — the monochrome LOI low-incidence basemap (166 m) by default; the image button switches to the enhanced-colour mosaic (665 m), which exaggerates compositional differences. Named features are IAU-recognised craters, scarps (rupes), ridges and basins.
