Titlebook: Mars and How to Observe It; Peter Grego Book 2012 Springer Science+Business Media New York 2012 Amateur astronomy.Imaging Mars.Observing M

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兒童

A Tour of Mars Through the Eyepiecent reference point on the planet’s surface which was used for determining an accurate value for the planet’s rotation and to construct accurate maps of Mars. This reference point, centered on a small feature we now know as Sinus Meridiani (Meridiani Planum), is still used today as zero longitude.