20,000-Year Lunar Phase Calculator
BC 9999-Mar-21-Thu 00:00:00.0006 TT to AD 9999-Dec-30-Thu 12:00:00.0011 TT
or
BC 9999-Mar-15-Thu 21:49:54.7144 UT to AD 9999-Dec-30-Thu 11:58:50.8171 UT
PHP Program by Jay Tanner - 2025 - Built Around The NASA/JPL Horizons API
Optional Location Name
Geographic GPS Coordinates
Longitude
Latitude
Altitude
m
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Daylight / Summer Time
Date and Time
View PHP Source Code
Download This Program + Phase Images (Approx. 13.2 MB)
N
Phase Angle: 107.4092°
Waxing gibbous, just past first quarter.
Distance: 399,909.6 km = 248,492.3 mi
Double-Click Within Text Area to Select ALL Text
====================================================== TOPOCENTRIC LUNAR PHASE CALCULATOR FOR ANY GIVEN DATE, TIME AND LOCATION Calendar Date/Time AD 2025-Sep-01 13:42:57 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-Sep-01 15:15 131.42° SE Rise AD 2025-Sep-01 19:19 On Merid | Transit 17.65° AD 2025-Sep-01 23:24 228.95° SW Set ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-Sep-01 Local Time 13:42:57 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460920.279826389 UT Right Ascension 17h 44m 30.688s 17.7418577364 h 266° 07' 40.318" 266.127866046° Declination -28° 46' 26.235" -28.773954305° Distance 399,909.6 km 248,492.3 mi 0.00267323033187 AU Angular Diameter 0° 29' 52.233" 1792.233" 0.4978425° Visual Magnitude -10.620 Horizon Azimuth 117.21° Direction: ESE Horizon Elevation -13.18° Below Local Horizon Lunar Phase Angle 107.4092° Waxing gibbous, just past 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 -05h 24m 17.109s -5.404752547 h -81° 04' 16.638" -81.071288205° Loc Sidereal Time 12h 20m 13.579s 12.3371051899 h 185° 03' 23.680" 185.0565778485° Radial Velocity -0.3271828 km/s -1177.85808 km/h -0.203302 mi/s -731.8870795 mi/h Approaching Observer Delta T (TDB−UT) +69.182641 sec +0d 00h 01m 09.182641s ######################################################