20,000-Year Lunar Phase Calculator
BC 9999 to AD 9999
PHP Program by Jay Tanner - 2026 - 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
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Download This Program + Phase Images (Approx. 13.2 MB)
N
Phase Angle: 219.5692°
Waning gibbous.
Distance: 388,017.8 km = 241,103.1 mi
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====================================================== TOPOCENTRIC LUNAR PHASE CALCULATOR FOR ANY GIVEN DATE, TIME AND LOCATION Calendar Date/Time AD 2026-Feb-04 19:03:47 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-Feb-04 02:16 On Merid | Transit 51.60° AD 2026-Feb-04 08:39 274.48° W Set AD 2026-Feb-04 20:50 90.01° E Rise ###################################################### MOON TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2026-Feb-04 Local Time 19:03:47 Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2461076.502627315 UT Right Ascension 11h 39m 39.651s 11.661014055467 h 174° 54' 54.759" 174.915210832° Declination +0° 32' 08.796" +0.535776699° Distance 388,017.8 km 241,103.1 mi 0.00259373846356 AU Angular Diameter 0° 30' 47.161" 1847.161" 0.5131002778° Visual Magnitude -11.691 Horizon Azimuth 71.49° Direction: ENE Horizon Elevation -18.11° Below Local Horizon Lunar Phase Angle 219.5692° Waning gibbous. 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 -07h 42m 40.540s -7.711261167 h -115° 40' 08.103" -115.668917505° Loc Sidereal Time 03h 56m 59.110s 3.9497528888 h 59° 14' 46.656" 59.246293332° Radial Velocity -0.229974 km/s -827.9064 km/h -0.1428992 mi/s -514.4371868 mi/h Approaching Observer Delta T (TDB−UT) +69.184870 sec +0d 00h 01m 09.184870s ######################################################