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  2. Selenographic coordinate system - Wikipedia

    en.wikipedia.org/wiki/Selenographic_coordinate...

    The value of the selenographic colongitude increases from 0° to 359° in the direction of the advancing terminator. Sunrise occurs at the prime meridian when the Lunar phase reaches First Quarter, after one fourth of a lunar day. At this location the selenographic colongitude at sunrise is defined as 0°.

  3. Selenography - Wikipedia

    en.wikipedia.org/wiki/Selenography

    Print/export Download as PDF; Printable version; In other projects Wikimedia Commons; ... Selenographic coordinate system; List of maria on the Moon;

  4. Lunar geologic timescale - Wikipedia

    en.wikipedia.org/wiki/Lunar_geologic_timescale

    The Pre-Nectarian period is defined from the point at which the lunar crust formed, to the time of the Nectaris impact event. Nectaris is a multi-ring impact basin that formed on the near side of the Moon, and its ejecta blanket serves as a useful stratigraphic marker. 30 impact basins from this period are recognized, the oldest of which is the South Pole–Aitken basin.

  5. Subsolar point - Wikipedia

    en.wikipedia.org/wiki/Subsolar_point

    The subsolar point moves constantly on the surface of the Earth, but for any given time, its coordinates, or latitude and longitude, can be calculated as follows: [3] ϕ s = δ , {\displaystyle \phi _{s}=\delta ,} λ s = − 15 ( T G M T − 12 + E m i n / 60 ) . {\displaystyle \lambda _{s}=-15(T_{\mathrm {GMT} }-12+E_{\mathrm {min} }/60).}

  6. Planetary coordinate system - Wikipedia

    en.wikipedia.org/wiki/Planetary_coordinate_system

    A planetary coordinate system (also referred to as planetographic, planetodetic, or planetocentric) [1] [2] is a generalization of the geographic, geodetic, and the geocentric coordinate systems for planets other than Earth. Similar coordinate systems are defined for other solid celestial bodies, such as in the selenographic coordinates for the ...

  7. Selenographia, sive Lunae descriptio - Wikipedia

    en.wikipedia.org/wiki/Selenographia,_sive_Lunae...

    Title page. Selenographia, sive Lunae descriptio (Selenography, or A Description of The Moon) was printed in 1647 and is a milestone work by Johannes Hevelius.It includes the first detailed map of the Moon, created from Hevelius's personal observations. [1]

  8. Apollo Lunar Surface Experiments Package - Wikipedia

    en.wikipedia.org/wiki/Apollo_Lunar_Surface...

    ALSEP of the Apollo 16 mission. The Apollo Lunar Surface Experiments Package (ALSEP) comprised a set of scientific instruments placed by the astronauts at the landing site of each of the five Apollo missions to land on the Moon following Apollo 11 (Apollos 12, 14, 15, 16, and 17).

  9. Copernicus (lunar crater) - Wikipedia

    en.wikipedia.org/wiki/Copernicus_(lunar_crater)

    Copernicus is a lunar impact crater located in eastern Oceanus Procellarum.It was named after the astronomer Nicolaus Copernicus. [1] It typifies craters that formed during the Copernican period in that it has a prominent ray system.