Basic Lunar Ephemeris Statistics and Phase Calculator
Based on the 600-Year NASA/JPL DE405 Ephemeris Model
PHP Program by Jay Tanner
Date: (1600 to 2200) Y m d
Local Time (00h to 24h) H:M:S
Local Time Zone Offset ±H:M
NASA Polynomial ΔT
:
:
Time Zone:
UT
Apply ΔT
+00:00:00
Daylight / Summer Time
Longitude ±Deg.d M S
(Neg=W)
Latitude ±Deg.d M S
(Neg=S)
Sea Level Elevation
(± meters)
This program uses a cookie to store and remember the interface settings between calls.
N
S
Lunar Ephemeris Statistics Referred to True Ecliptic and Equinox of Date Based on the NASA/JPL DE405 Ephemeris Model and NASA Polynomial Expressions for Delta T Local Date = 2026 Oct 25 - Sun Local Time = 22:16:38 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Working Julian Date = 2461339.42821759 TT Julian Day Number = JDNumLT Longitude = -76.833611111° = -05h 07m 20.1s (W=Negative) Latitude = +42.752194444° Elevation = 0 m Local Sidereal Time = 19h 26m 33.529s = 19.442646875h = 291.639703130° =========================================================================== Geocentric Lunar Ephemeris Statistics Right Ascension = 03h 02m 48.98s = 3.0469402h = 45.7041030° Declination = +15° 20' 21.82" = +15.339393° True Distance = 369756.06 km = 229755.76 mi Angular Diameter = 00° 32' 18.03" = 32.300572' = 0.538342860° Angular Semi-Diameter = 00° 16' 09.02" = 16.150286' = 0.269171430° Phase Angle = 176.69730° Horizontal Parallax = 59.302632' = 0.988377204° Light/Signal Time = 1.206 sec (surface-to-surface) =========================================================================== Local Topocentric and Horizon Coordinates of Moon Topocentric RA = 03h 05m 33.26s = 3.0925727h = 46.3885909° Topocentric Decl = +14° 37' 03.85" = +14.617736° Local Hour Angle = +16h 23m 44.54s = +245.9356001° (E=Negative) Azimuth = 242.35399° (Measured clockwise from S=0°) = 62.35399° (Measured clockwise from N=0°) Direction = ENE Altitude = -7.24669° (Invisible - Below Local Horizon) =========================================================================== Geocentric Lunar ephemeris table for each day of Oct. 2026 at 12:00 TT There are three extra (xx) padding days at each end of the table. JD_Num RA_Hr Declin° Dist_km Phase_Ang° Day 2461312 1.6518565 +15.059301 373506.804 203.04698 xx 2461313 2.5653646 +20.307015 371322.600 216.16608 xx 2461314 3.5432833 +24.448615 369967.233 229.41102 xx 2461315 4.5784809 +27.102124 369378.036 242.70748 1 2461316 5.6464721 +27.990884 369453.675 255.99074 2 2461317 6.7107240 +27.025591 370089.431 269.21127 3 2461318 7.7362892 +24.331553 371205.334 282.33549 4 2461319 8.7022820 +20.199188 372760.138 295.34220 5 2461320 9.6050952 +14.997100 374748.590 308.21685 6 2461321 10.4539147 +09.101364 377184.023 320.94560 7 2461322 11.2644665 +02.860910 380072.064 333.51134 8 2461323 12.0544249 -03.410285 383383.209 345.89266 9 2461324 12.8407698 -09.429356 387031.925 358.06605 10 2461325 13.6381842 -14.938931 390867.699 10.01056 11 2461326 14.4576243 -19.704582 394679.898 21.71346 12 2461327 15.3046878 -23.517927 398214.732 33.17537 13 2461328 16.1780854 -26.206714 401200.255 44.41367 14 2461329 17.0692219 -27.650405 403374.646 55.46365 15 2461330 17.9640037 -27.795138 404513.800 66.37775 16 2461331 18.8469178 -26.659026 404455.559 77.22326 17 2461332 19.7057498 -24.322739 403119.220 88.07893 18 2461333 20.5347747 -20.909499 400519.578 99.03093 19 2461334 21.3355008 -16.565074 396774.838 110.16792 20 2461335 22.1156484 -11.446910 392107.142 121.57514 21 2461336 22.8875811 -05.725766 386833.709 133.32677 22 2461337 23.6669642 +00.401698 381346.138 145.47681 23 2461338 0.4717127 +06.693539 376076.092 158.04904 24 2461339 1.3206767 +12.842423 371448.130 171.02809 25 2461340 2.2310005 +18.464304 367825.170 184.35515 26 2461341 3.2129337 +23.111009 365457.486 197.93180 27 2461342 4.2622116 +26.325641 364449.089 211.63350 28 2461343 5.3542283 +27.747093 364752.632 225.33037 29 2461344 6.4479037 +27.226482 366195.106 238.90863 30 2461345 7.5013318 +24.876998 368525.944 252.28578 31 2461346 8.4881440 +21.014890 371472.321 265.41588 xx 2461347 9.4026103 +16.042349 374786.571 278.28544 xx 2461348 10.2543830 +10.352757 378275.993 290.90367 xx JD_Num RA_Hr Declin° Dist_km Phase_Ang° Day ===========================================================================