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: 151.7598°
Waxing gibbous moon.
Distance: 402,394.8 km = 250,036.5 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-May-09 20:48:36 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-May-09 03:17 261.30° W Set AD 2025-May-09 16:40 103.10° ESE Rise AD 2025-May-09 22:12 On Merid | Transit 35.87° ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-May-09 Local Time 20:48:36 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460805.575416666 UT Right Ascension 13h 15m 29.201s 13.258111309933 h 198° 52' 18.011" 198.871669649° Declination -10° 54' 06.250" -10.901735995° Distance 402,394.8 km 250,036.5 mi 0.00268984311540 AU Angular Diameter 0° 29' 41.164" 1781.164" 0.4947677778° Visual Magnitude -11.860 Horizon Azimuth 155.83° Direction: SSE Horizon Elevation +33.03° Above Local Horizon Lunar Phase Angle 151.7598° Waxing gibbous 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 -01h 21m 50.840s -1.3641221 h -20° 27' 42.593" -20.4618315° Loc Sidereal Time 11h 53m 38.361s 11.8939892095 h 178° 24' 35.417" 178.4098381425° Radial Velocity -0.0997333 km/s -359.03988 km/h -0.0619714 mi/s -223.0970383 mi/h Approaching Observer Delta T (TDB−UT) +69.185335 sec +0d 00h 01m 09.185335s ######################################################