20,000-Year Lunar Phase Calculator
BC 9999 to AD 9999
PHP Program by Jay Tanner - 2026 - Built Around The NASA/JPL Horizons API
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Download This Program + Phase Images (Approx. 13.2 MB)
N
Phase Angle: 202.7203°
Waning gibbous, just past full moon.
Distance: 411,220.9 km = 255,520.8 mi
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====================================================== TOPOCENTRIC LUNAR PHASE CALCULATOR FOR ANY GIVEN DATE, TIME AND LOCATION Calendar Date/Time AD 2026-May-03 12:38:29 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 2026-May-03 01:09 On Merid | Transit 21.32° AD 2026-May-03 05:30 233.71° SW Set AD 2026-May-03 21:45 128.62° SE Rise ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2026-May-03 Local Time 12:38:29 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2461164.235057870 UT Right Ascension 16h 11m 12.781s 16.186883560333 h 242° 48' 11.712" 242.803253405° Declination -25° 52' 02.368" -25.867324555° Distance 411,220.9 km 255,520.8 mi 0.00274884177992 AU Angular Diameter 0° 29' 02.935" 1742.935" 0.4841486111° Visual Magnitude -11.961 Horizon Azimuth 322.94° Direction: NW Horizon Elevation -69.74° Below Local Horizon Lunar Phase Angle 202.7203° Waning gibbous, just past 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 +11h 06m 21.769s +11.106046878 h +166° 35' 26.531" +166.59070317° Loc Sidereal Time 03h 17m 34.550s 3.2929304388 h 49° 23' 38.244" 49.393956582° Radial Velocity +0.0784415 km/s +282.3894 km/h +0.0487413 mi/s +175.4686382 mi/h Receding From Observer Delta T (TDB−UT) +69.185427 sec +0d 00h 01m 09.185427s ######################################################