MOON DATA |
| Diam. mi. |
Vol. | Mass | Den. | Rotat. days |
Revol. days |
Surf. Gravity |
Orbit Speed mph |
Mean Dist. mi. |
|
| EARTH | 7,926 | 63 | 83 | 1 | 1 | 365.25 | 1 | 66,600 | -- |
| MOON | 2,260 | 1 | 1 | 0.62 | 27.3 | 27.3 | 0.17 | 2,280 | 238,000 |
| Aphrodite - F- Greek | Hekate - F - Greek | Persephone - F - Greek |
| Apollo - M - Greek | Hera - F - Greek | Phobe - F - Greek |
| Artemis - F - Greek | Ishtar - F - Babylon | Selene - F - Green |
| Diana - F - Greek | Isis - F - Egypt | Shing - F - China |
| Dionysus - M - Greek | Juno - F - Rome | Somas - M - Greek |
| Earth-Child - N - 5A | Luna - F - Rome | Tsuki - N - Japan |
| Europa - F - Greek | Osiris - M - Egypt | . |
| Jan | Winter, Old, Wolf, Yule | . | Jul | Summer, Thunder, Buck, Hay |
| Feb | Snow, Storm, Hunger | . | Aug | Dog Day, Corn, Grain, Sturgeon |
| Mar | Sap, Fish, Crow, Worm | . | Sep | Harvest, Fruit |
| Apr | Grass, Pink, Egg, Planters | . | Oct | Hunter's, Blood |
| May | Flower, Milk, Hare | . | Nov | Frosty, Beaver |
| Jun | Rose, Strawberry, Honey, Hot | . | Dec | Cold, Long Nite, Christmas, Oak |
MOON DATA |
| Diameter: 2,160
miles; Equitorial - 3,476 km; Polar - 3,470 km Surface Area: 1,469,00 sq. mi. Mass: 7,340,000,000,000,000,000 kg.; .01227 Earth Volume: 5.23 Trillion cubic mi.; .0203 Earth Density: 3.34 Water; .606 Earth Surface Gravity: .166 Earth Esacape Velocity: 1.5 mi./sec., 2.38 km./sec.; Earth: 11.2 km./sec.; 21.3% Earth Orbit Eccentricity: .0549 Distance: Apogee: 252,948 mi.; Perigee: 221,593 mi. Apparent Diameter: Perigee 33' 31"; Apogee: 29' 22" Rotation: Synchronous Orbital Velocity: Mean: 2,287 mph; Max.: 2,429 mph; Min: 2,153 pmh Apparent Motion: Approx. 1/2 degree/hr.; 13 degrees/day Mean Sidereal Period: 27d, 7h, 43m = 27.3217 days Mean Synodic Period: 29d, 12h, 44m, 2.78s = 29.5306 days Mean Orbit Inclination - To Ecliptic: 5d 8' 43" Rotational Axis Inclination - to Orbit: 1d 0' 30"s Nodes Revolution: 18y, 10d, 8h, 30m Saros Cycle: 18y, 10d, 7h, 42m Mean Longitudinal Terminator Motion: 11.49 degrees/day = 216.47 mi. at Eq. 1 Degree Longitude at Equator = 18.84 mi. % Visible from Earth: 58.9 Limb to Limb Distance = 3,391 mi. Surface Temp.: Max.: 118 c.; Min: -153 c. Albedo: .073 Apparent Magnitude: Full: -12.6; Quarter: -10.2 Coordinate System: 0 in Sinus Medii Shape: Triaxial Ellipsoid, Flattened at Poles, Bulge towards Earth, Smaller Bulge opposite Earth Lagrange Points: 5 |
ORBIT DATA |
| SIDEREAL
MONTH - Time to
same R.A. Position; 27.32166 days; Precession 3.76", Increases 7 sec./yr. TROPICAL MONTH - Sidereal Month minus Precession; 27.32158 days SYNODIC MONTH - New-New, Full-Full Phase; Most conspicuous Month, 360 degrees times Sidereal Month divided by Sidereal Year ANOMALISTIC MONTH - Perigee to Perigee; 27.55455 days DRACONIC MONTH - Node to Node; 27.2122 days BARYCENTER - Earth-Moon Mass Center; Revolves around Sun; Earth Revolves around Barycenter 1/month Moves 1,196 km./hr. in Earth Mantle; 1/81.3 distance from Earth to Moon 4,727 km. from Earth Center; 1,650 km. below Earth Surface Earth Center can be 456 km above/below Ecliptic Barycenter Orbit defines Ecliptic ECCENTRICITY - .054900 from Barycenter; Varies 5.49% from Average Distance Barycenter varies from 1,900 (Perigee) to 1,400 (Apogee) km. below Earth Surface Ellipcity varies - stretched (greater) when Apsides Axis points to Sun more circular (less) when at right angle to Sun Perigee closer at Full & New, further at 1st & Last Quarter Apogee distance varies less than Perigee Asides Axis Precesses E. (forward) in 2,236.2 days (18y, 10m) about 3 degrees per Orbit. Apsides: Line through Perigee-Apogee Apogee about 252,948 mi.; Perigee about 221,593 mi. INCLINATION - Varies about 5 degrees 8' 43" (5.145 degrees) from Ecliptic Moon can be 37,000 km. (5.29 degrees) above/below Ecliptic Max. 29 degrees N. or S. Declination, Varies 59' (.15 degrees) in 173 day period Moon Can Occult any Star 5.5 degrees from Ecliptic Nutation Period: Recession Cycle of Inclination; 6,793.5 days (18.6 yrs.) Recesses W. (back) .053 degrees per day Node: Point where Moon's Center crosses Ecliptic Nodal Period: 2.6 hrs less than Sidereal, Node Recesses (W., back) .053 degrees per day Node Alignment: Axis of Nodes points to Sun each 173.3 days Line of Nodes Recesses W about 19 degrees per year Eclipse Season: about 1 or 6 Syzygys (New to Full) have Eclipse, Usually 4 Eclipses/yr., max of 7 PHASE - SYZYGY = New to Full Waxing = Growing; Waning = Shrinking; Crescent = Less than 1/2 Lit; Gibbous = more than 1/2 Lit Elongation = Angular Distance of Moon from Sun Phase Angle = Angular Distance of Earth & Sun, measured form Moon Illuminated Fraction = % of Lit Moon facing Earth = 1/2(1+cos phase angle) LIBRATION Longitude - from Elliptical Orbit & Synchronous Rotation about 6 degrees 17', max. 7 degrees 54' Rotation nearly constant so at - 1/2 Time from Perigee to Apogee (> 1/2 Orbital Distance) Right (E.) Limb exposed 1/2 Time from Apogee to Perigee (< 1/2 Orbital Distance) Left (W.) Limb exposed Latitude - Rotational Axis inclined 6 degrees 50' to Orbital Plane Diurnal - Measured from position on Earth & Earth Rotation E. to W. Physical - Slight Rotational Irregularity from Triaxial Ellipsoidal Shape |