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: 97.2991°
First quarter.
Distance: 367,494.8 km = 228,350.7 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-Feb-05 15:54:55 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-Feb-05 01:11 297.78° WNW Set AD 2025-Feb-05 10:49 59.70° ENE Rise AD 2025-Feb-05 18:32 On Merid | Transit 70.23° ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-Feb-05 Local Time 15:54:55 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460712.371469907 UT Right Ascension 03h 25m 00.776s 3.4168821886667 h 51° 15' 11.638" 51.253232830° Declination +22° 37' 15.348" +22.620930071° Distance 367,494.8 km 228,350.7 mi 0.00245655081715 AU Angular Diameter 0° 32' 30.318" 1950.318" 0.541755° Visual Magnitude -10.516 Horizon Azimuth 110.45° Direction: ESE Horizon Elevation +52.53° Above Local Horizon Lunar Phase Angle 97.2991° First quarter. 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 -02h 32m 31.230s -2.542008415 h -38° 07' 48.454" -38.130126225° Loc Sidereal Time 00h 52m 29.546s 0.8748737732 h 13° 07' 23.184" 13.123106598° Radial Velocity -0.1624638 km/s -584.86968 km/h -0.1009503 mi/s -363.4211704 mi/h Approaching Observer Delta T (TDB−UT) +69.184895 sec +0d 00h 01m 09.184895s ######################################################