20,000-Year Moon Phase Calculator for Any Date, Time and Location
BC 9999-Mar-22-Fri to AD 9999-Dec-29-Wed
PHP Program by Jay Tanner - 2025 - Built Around The NASA/JPL Horizons API
Optional Location Name
Geographic GPS Coordinates
Longitude
Latitude
Altitude
m
Time Zone ?
Time Scale ?
Daylight / Summer Time ?
Date and Time
N
Phase Angle: 186.153°
Full Moon.
Distance: 406,928.7 km = 252,853.8 mi
View Source Code
Download This Program + Phase Images (Approx. 15 MB)
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====================================================== TOPOCENTRIC MOON PHASE CALCULATOR FOR ANY GIVEN DATE, TIME AND LOCATION Calendar Date/Time AD 2025-Mar-14 14:08:57 Time Scale: UT Time Zone UT-05:00 (Ignored if TT Scale) Standard Time Location Name Central New York State, USA Longitude = -76.862737° Latitude = +42.904788° Altitude = +150 m Reference Frame ICRF International Celestial Reference Frame Mean refraction is applied to rise/set computations. ###################################################### MOON RISE / TRANSIT / SET TIMES Standard Time Local Date and Time Azim Dir Event Elev -------------------- -------- --- ------- ------ AD 2025-Mar-14 00:15 On Merid | Transit 49.62° AD 2025-Mar-14 06:29 271.94° W Set AD 2025-Mar-14 18:52 92.34° E Rise ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-Mar-14 Local Time 14:08:57 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460749.297881945 UT Right Ascension 11h 59m 56.143s 11.998928718267 h 179° 59' 02.151" 179.983930774° Declination -0° 16' 21.192" -0.272553431° Distance 406,928.7 km 252,853.8 mi 0.00272015065779 AU Angular Diameter 0° 29' 21.318" 1761.318" 0.489255° Visual Magnitude -12.444 Horizon Azimuth 32.14° Direction: NNE Horizon Elevation -42.63° Below Local Horizon Lunar Phase Angle 186.153° Full Moon. Where: 0° = New Moon 45 = Waxing Crescent 90 = First Quarter 135 = Waxing Gibbous 180 = Full Moon 225 = Waning Gibbous 270 = Last Quarter 315 = Waning Crescent 360 = New Moon ###################################################### Local Hour Angle -10h 27m 49.468s -10.46374107 h -156° 57' 22.018" -156.95611605° Loc Sidereal Time 01h 32m 06.676s 1.5351876479 h 23° 01' 40.133" 23.0278147185° Radial Velocity -0.1003045 km/s -361.0962 km/h -0.0623263 mi/s -224.3747763 mi/h Approaching Observer Delta T (TDB−UT) +69.185536 sec +0d 00h 01m 09.185536s ######################################################