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: 113.9557°
Waxing gibbous, just past first quarter.
Distance: 399,776.1 km = 248,409.4 mi
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====================================================== TOPOCENTRIC LUNAR PHASE CALCULATOR FOR ANY GIVEN DATE, TIME AND LOCATION Calendar Date/Time AD 2026-Sep-20 21:25:19 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-Sep-20 15:22 126.15° SE Rise AD 2026-Sep-20 19:44 On Merid | Transit 21.44° ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2026-Sep-20 Local Time 21:25:19 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2461304.600914352 UT Right Ascension 19h 38m 35.416s 19.6431711068 h 294° 38' 51.240" 294.647566602° Declination -25° 25' 31.722" -25.425478467° Distance 399,776.1 km 248,409.4 mi 0.00267233848729 AU Angular Diameter 0° 29' 52.831" 1792.831" 0.4980086111° Visual Magnitude -10.835 Horizon Azimuth 203.47° Direction: SSW Horizon Elevation +17.95° Above Local Horizon Lunar Phase Angle 113.9557° 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 +01h 39m 13.591s +1.65377528 h +24° 48' 23.865" +24.8066292° Loc Sidereal Time 21h 17m 49.007s 21.2969463868 h 319° 27' 15.105" 319.454195802° Radial Velocity +0.0934138 km/s +336.28968 km/h +0.0580446 mi/s +208.9607194 mi/h Receding From Observer Delta T (TDB−UT) +69.182422 sec +0d 00h 01m 09.182422s ######################################################