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The Moon

Available Resources

The Moon Sky Charts and Coordinates

This is a simplified sky chart, showing where The Moon is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

The Moon in Libra on August, 17 2018
14h 40m 38s
-10° 07’ 09”
1,853.8”
-9.55
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

The Moon Rise and Set Times

Today's The Moon rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 100.1°
Max altitude: 28.4°
Azimuth: 259.9°

Current Moon Phase

Phase: Waxing Crescent  Age: 6.31 days
Current Moon Sky Map

The Moon Ephemeris

The following table lists the ephemerides of The Moon computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate The Moon in our Online Planetarium at the chosen date.

Date Right AscensionR.A. DeclinationDec. MagnitudeMag Apparent DiameterDiameter Constellation
2018 Aug 10 07h 55m 44s +19° 58’ 04” -6.07 1,998.3” Gemini
2018 Aug 11 08h 59m 12s +17° 43’ 19” -4.65 2,001.0” Cancer
2018 Aug 12 10h 00m 35s +14° 15’ 11” -4.92 1,993.0” Leo
2018 Aug 13 10h 59m 07s +09° 54’ 07” -6.26 1,975.6” Leo
2018 Aug 14 11h 54m 43s +05° 03’ 14” -7.34 1,950.7” Virgo
2018 Aug 15 12h 47m 54s +00° 03’ 59” -8.20 1,921.2” Virgo
2018 Aug 16 13h 39m 20s -04° 45’ 51” -8.89 1,890.3” Virgo
2018 Aug 17 14h 29m 40s -09° 12’ 28” -9.45 1,860.2” Libra
2018 Aug 18 15h 19m 36s -13° 05’ 21” -9.92 1,833.0” Libra
2018 Aug 19 16h 09m 33s -16° 16’ 35” -10.31 1,810.0” Scorpius
2018 Aug 20 16h 59m 49s -18° 39’ 59” -10.66 1,791.9” Ophiucus
2018 Aug 21 17h 50m 25s -20° 11’ 07” -10.98 1,778.7” Sagittarius
2018 Aug 22 18h 41m 09s -20° 47’ 12” -11.29 1,770.3” Sagittarius
2018 Aug 23 19h 31m 45s -20° 27’ 28” -11.58 1,766.5” Sagittarius

Distance of The Moon from Earth

The following chart shows the distance of The Moon from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth.

Distance of The Moon from Earth between January 2013 and December 2075

Light Curve of The Moon

The following chart is the predicted light curve (visual magnitude as a function of time) of The Moon, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of The Moon between January 2013 and December 2075

The Moon Physical Data

The following shows the known values of the most important physical parameters of The Moon. Source: JPL Small-Body Database

Physical Parameter Value Relative to Earth
Diameter 3474.2 km 0.2727
Mass 0.07342 x 1024 kg 0.0123
Density 3.344 gr/cm3 0.6065
Escape Velocity 2.38 km/s 0.2127
Sideral Rotation 655.7199 hours 27.3965
Absolute Magnitude -12.6
Geometric Albedo 0.136