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—   REFRACTORLAND OBSERVATORY :   HYPERTEXTUAL MOON ATLAS
  (...a work in constant progress...)
 


based on A. Rükl, "Atlas of the Moon"
 


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NUMERICAL DATA ON THE MOON


Average distance of Moon from Earth 384 401 km = 60.27 Earth's Equatorial Radii
Minimum distance of Moon at Perigee 356 400 km
Maximum distance of Moon at Apogee 406 700 km
Time taken for light to travel from Moon to Earth 1.3 seconds
Eccentricity of Moon's orbit around Earth 0.0549
Mean distance of center of gravity of Earth-Moon system from center of Earth 4 670 km
Mean angular diameter of Moon in sky (geocentric) 31' 05.2"
Angular diameter of Moon at perigee 33' 28.8"
Angular diameter of Moon at apogee 29' 23.2"
Stellar magnitude of full Moon -12.55 mag
Inclination of Moon's orbit to ecliptic 5º 8' 43.4"
Sidereal orbital period (i.e., with respect to stars) 27.321661d = 27d 7h 43m 11.5s
Synodic month (from new Moon to new Moon) 29.530588d = 29d 12h 44m 2.8s
Anomalistic month (from perigee to perigee) 27.554550d = 27d 13h 18m 33.1s
Rotation period of line of nodes (retrograde motion) 18.61 years
Rotation period of point of perigee (direct motion) 8.85 years
Average orbital velocity of Moon around Earth 3 681 km/h = 1 023 km/s
Average angular velocity of Moon's motion in sky 33'/h
Mean diurnal motion of Moon with respect to stars 13.176358º
Mean interval between two successive meridian passages of Moon 24h 50.47m
Optical libration in longitude up to 7º 54'
Optical libration in latitude up to 6º 50'
Total surface area of the Moon theoretically observable from Earth 59%
Inclination of Moon's equator to plane of ecliptic 1º 32.5'
Inclination of Moon's equator to its orbital plane 6º 41'
Diameter of Moon 3 476 km
Circumference of Moon at equator 10 920 km
Surface area of the Moon 37.96 x 10^6 km2 = 7.4% of surface area of Earth
Volume of the Moon 21.99 x 10^9 km3 = 2.03% of volume of Earth
Mass of Moon 7.352 x 10^25 g = 1.23% of mass of Earth
Mean density of Moon 3.341 g/cm3 = 60.6% of density of Earth
Moon's surface gravity 162.2 cm/s2 = 16.5% of Earth's surface gravity
Moon's escape velocity 2.38 km/s (11.2 km/s on Earth)
Illumination of surface of Earth by Full Moon 0.25 lux
Illumination of surface of Moon by full Earth 16 lux
Surface temperature on night hemisphere of Moon -170º to -185º C
Maximum temperature on sunlit side of the Moon +130º C
Constant temperature at depth of 1 m under surface -35º C
Total surface of lunar maria 16.9% of Moon's surface
Total surface area of lunar maria on near side of the Moon (one hemisphere) 31.2% of near side of Moon
Total surface area of lunar maria on far side of the Moon (one hemisphere) 2.6% of far side of Moon
Range of topography (highest-lowest elevation on the Moon) 16 km


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© The Refractorland Team, 2011