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: 172.8323°
Full Moon.
Distance: 368,102.1 km = 228,728.0 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-Sep-07 01:27:16 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-Sep-07 05:18 258.51° WSW Set AD 2025-Sep-07 18:36 96.62° E Rise ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-Sep-07 Local Time 01:27:16 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460925.768935185 UT Right Ascension 22h 40m 33.412s 22.675947880667 h 340° 08' 21.186" 340.139218210° Declination -9° 58' 27.381" -9.974272592° Distance 368,102.1 km 228,728.0 mi 0.00246061045971 AU Angular Diameter 0° 32' 27.100" 1947.100" 0.5408611111° Visual Magnitude -12.607 Horizon Azimuth 211.06° Direction: SSW Horizon Elevation +31.89° Above Local Horizon Lunar Phase Angle 172.8323° 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 +01h 45m 37.652s +1.76045891 h +26° 24' 24.781" +26.40688365° Loc Sidereal Time 00h 26m 11.064s 0.4364067911 h 6° 32' 45.967" 6.5461018665° Radial Velocity +0.0909096 km/s +327.27456 km/h +0.0564886 mi/s +203.3589835 mi/h Receding From Observer Delta T (TDB−UT) +69.182563 sec +0d 00h 01m 09.182563s ######################################################