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: 202.6704°
Waning gibbous, just past full moon.
Distance: 411,195.7 km = 255,505.2 mi
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====================================================== TOPOCENTRIC LUNAR PHASE CALCULATOR FOR ANY GIVEN DATE, TIME AND LOCATION Calendar Date/Time AD 2026-May-03 12:33:20 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 12:33:20 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2461164.231481481 UT Right Ascension 16h 11m 03.278s 16.184243784467 h 242° 45' 49.164" 242.763656767° Declination -25° 52' 22.229" -25.872841422° Distance 411,195.7 km 255,505.2 mi 0.00274867337434 AU Angular Diameter 0° 29' 03.041" 1743.041" 0.4841780556° Visual Magnitude -11.963 Horizon Azimuth 320.16° Direction: NW Horizon Elevation -69.18° Below Local Horizon Lunar Phase Angle 202.6704° 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 01m 21.426s +11.022618313 h +165° 20' 21.389" +165.339274695° Loc Sidereal Time 03h 12m 24.704s 3.2068620978 h 48° 06' 10.553" 48.102931467° Radial Velocity +0.0846219 km/s +304.63884 km/h +0.0525816 mi/s +189.2937992 mi/h Receding From Observer Delta T (TDB−UT) +69.185427 sec +0d 00h 01m 09.185427s ######################################################