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
Base Time Scale
Time Zone
Daylight / Summer Time
Date and Time
View PHP Source Code
Download This Program + Phase Images (Approx. 13.2 MB)
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Phase Angle: 183.1052°
Full Moon.
Distance: 381,005.2 km = 236,745.6 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-Aug-09 06:33:35 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-Aug-09 00:11 On Merid | Transit 27.36° AD 2025-Aug-09 05:09 244.87° WSW Set AD 2025-Aug-09 19:49 110.50° ESE Rise ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-Aug-09 Local Time 06:33:35 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460896.981655092 UT Right Ascension 21h 28m 20.361s 21.4723225468 h 322° 05' 05.418" 322.084838202° Declination -17° 44' 00.753" -17.73354248° Distance 381,005.2 km 236,745.6 mi 0.00254686215911 AU Angular Diameter 0° 31' 21.159" 1881.159" 0.5225441667° Visual Magnitude -12.624 Horizon Azimuth 258.54° Direction: WSW Horizon Elevation -13.88° Below Local Horizon Lunar Phase Angle 183.1052° 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 +06h 10m 39.922s +6.177756105 h +92° 39' 58.830" +92.666341575° Loc Sidereal Time 03h 39m 00.283s 3.6500786518 h 54° 45' 04.247" 54.751179777° Radial Velocity +0.2627747 km/s +945.98892 km/h +0.1632806 mi/s +587.8102631 mi/h Receding From Observer Delta T (TDB−UT) +69.183093 sec +0d 00h 01m 09.183093s ######################################################