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)
N
Phase Angle: 300.4441°
Waning morning crescent.
Distance: 369,701.4 km = 229,721.8 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-22 16:54:37 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-22 01:58 93.65° E Rise AD 2025-May-22 07:58 On Merid | Transit 45.84° AD 2025-May-22 14:13 271.40° W Set ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-May-22 Local Time 16:54:37 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460818.412928241 UT Right Ascension 00h 10m 14.725s 0.17075706706667 h 2° 33' 40.882" 2.561356006° Declination +1° 47' 06.347" +1.785096448° Distance 369,701.4 km 229,721.8 mi 0.00247130122392 AU Angular Diameter 0° 32' 18.677" 1938.677" 0.5385213889° Visual Magnitude -8.814 Horizon Azimuth 301.01° Direction: WNW Horizon Elevation -26.71° Below Local Horizon Lunar Phase Angle 300.4441° Waning morning crescent. 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 +08h 40m 01.443s +8.667067558 h +130° 00' 21.648" +130.00601337° Loc Sidereal Time 08h 50m 16.169s 8.8378246250 h 132° 34' 02.530" 132.567369375° Radial Velocity +0.1934541 km/s +696.43476 km/h +0.1202068 mi/s +432.7444971 mi/h Receding From Observer Delta T (TDB−UT) +69.185097 sec +0d 00h 01m 09.185097s ######################################################