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: 151.0151°
Waxing gibbous moon.
Distance: 403,884 km = 250,962 mi
Approaching Observer With Radial Velocity:
-899.137 km/h = -558.698 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-May-09 18:31:03 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 - LOCAL TOPOCENTRIC EPHEMERIS STATISTICS Calendar Date AD 2025-May-09 Local Time 18:31:03 UT Standard Time Local Time Zone UT-05:00 NOTE: Time Zone is ignored if using the TT time Scale Julian Date 2460805.479895833 UT Right Ascension 13h 12m 31.574s 13.208770662533 h 198° 07' 53.616" 198.131559938° Declination -10° 19' 39.010" -10.327502751° Distance 403,884 km 250,962 mi 0.00269979564904 AU Angular Diameter 0° 29' 34.598" 1774.598" 0.4929438889° Radial Velocity -0.2497602 km/s -899.13672 km/h -0.1551938 mi/s -558.6976557 mi/h Approaching Observer Phase Angle 151.0151° 0=New 90=FQ 180=Full 270=LQ Waxing gibbous moon. Visual Magnitude -11.833 Horizon Azimuth 123.24° Direction: ESE Horizon Elevation +17.42° Above Local Horizon Local Hour Angle -03h 36m 48.809s -3.613557981 h -54° 12' 12.131" -54.203369715° Loc Sidereal Time 09h 35m 42.766s 9.5952126812 h 143° 55' 41.485" 143.928190218° Delta T (TDB−UT) +69.185336 sec +0d 00h 01m 09.185336s ======================================================