20,000-Year Moon Phase Calculator For Any Date, Time And Location
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
Time Zone ?
Time Scale ?
Daylight / Summer Time ?
Date and Time
N
Phase Angle: 104.3806°
Waxing gibbous, just past first quarter moon.
Distance: 405,253 km = 251,813 mi
Approaching Observer With Radial Velocity:
-480.561 km/h = -298.607 mi/h
Double-Click Within Text Area to Select ALL Text
====================================================== 20,000-YEAR TOPOCENTRIC MOON PHASE CALCULATOR FOR ANY GIVEN DATE, TIME AND LOCATION Calendar Date/Time AD 2025-Sep-01 08:10:28 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-01 15:15 131.42° SE Rise AD 2025-Sep-01 19:19 On Merid | Transit 17.65° AD 2025-Sep-01 23:24 228.95° SW Set ###################################################### ====================================================== MOON - LOCAL TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-Sep-01 Local Time 08:10:28 UT Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460920.048935185 UT Right Ascension 17h 29m 54.770s 17.498547260667 h 262° 28' 41.552" 262.478208910° Declination -28° 17' 12.394" -28.286776249° Distance 405,253 km 251,813 mi 0.00270895017430 AU Angular Diameter 0° 29' 28.601" 1768.601" 0.4912780556° Radial Velocity -0.1334893 km/s -480.56148 km/h -0.0829464 mi/s -298.6070598 mi/h Approaching Observer Phase Angle 104.3806° 0=New 90=FQ 180=Full 270=LQ Waxing gibbous, just past first quarter moon. Visual Magnitude -10.493 Horizon Azimuth 52.95° Direction: NE Horizon Elevation -68.69° Below Local Horizon Local Hour Angle -10h 43m 04.811s -10.718003149 h -160° 46' 12.170" -160.770047235° Loc Sidereal Time 06h 46m 49.959s 6.7805441120 h 101° 42' 29.382" 101.70816168° Delta T (TDB−UT) +69.182646 sec +0d 00h 01m 09.182646s ======================================================