Mercury Ephemeris Calculator
Based on the 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
Undefined1
Std. Time = UT
Apply ΔT
+00:00:00
Daylight / Summer Time
Undefined3
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.
Mercury Ephemeris Statistics Referred to True Ecliptic and Equinox of Date Based on the NASA/JPL DE405 Ephemeris Model Local Date = 2025 Jun 13 - Fri Local Time = 00:22:51 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460839.51586806 =========================================================================== Geocentric Equatorial Coordinates of Mercury Right Ascension = 06h 35m 05.71s = 6.5849199h = 98.7737985° Declination = +25° 12' 16.15" = +25.204486° True Distance = 1.190008661 AU = 178.022762 Mkm = 110.618216 Mmi Visual Magnitude = -0.9 Angular Diameter = 5.647" Horizontal Parallax = 7.390" = 0.123166' = 0.002052775° Light/Signal Time = 09m 53.82s =========================================================================== Local Topocentric Coordinates of Mercury For Geographic Location: Longitude = -76.833611111° = -05h 07m 20.1s (W=Negative) Latitude = +42.752194444° Elevation = 0 m Topocentric RA = 06h 35m 05.31s = 6.5848087h = 98.7721307° Topocentric Decl = +25° 12' 11.57" = +25.203213° Local Hour Angle = +06h 06m 43.91s = 91.682960902749° (W=Negative) Local Sidereal Time = 12h 41m 49.222s = 12.697006106h = 190.455091592° Azimuth = 110.08637° (Measured clockwise from S=0°) = 290.08637° (Measured clockwise from N=0°) Direction = WNW Altitude = +15.63768° (Above Local Horizon - No refractions applied) =========================================================================== Mercury Ephemeris Table For Each Day Of Jun. 2025 at 12:00 TT There are three extra (xx) padding days at each end of the table. JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day 2460825 4.3772036 +22.017383 1.321810650 -2.4 xx 2460826 4.5318112 +22.527626 1.321203523 -2.4 xx 2460827 4.6876581 +23.000173 1.319149424 -2.3 xx 2460828 4.8443640 +23.432532 1.315650834 -2.1 1 2460829 5.0015258 +23.822516 1.310729148 -2.0 2 2460830 5.1587291 +24.168407 1.304423912 -1.8 3 2460831 5.3155592 +24.468977 1.296791209 -1.7 4 2460832 5.4716107 +24.723491 1.287901332 -1.5 5 2460833 5.6264954 +24.931703 1.277835982 -1.4 6 2460834 5.7798500 +25.093823 1.266685222 -1.3 7 2460835 5.9313407 +25.210477 1.254544422 -1.2 8 2460836 6.0806667 +25.282657 1.241511411 -1.1 9 2460837 6.2275619 +25.311661 1.227683945 -1.0 10 2460838 6.3717943 +25.299042 1.213157616 -0.9 11 2460839 6.5131657 +25.246544 1.198024201 -0.9 12 2460840 6.6515086 +25.156061 1.182370460 -0.8 13 2460841 6.7866846 +25.029586 1.166277340 -0.7 14 2460842 6.9185803 +24.869177 1.149819519 -0.6 15 2460843 7.0471049 +24.676923 1.133065244 -0.6 16 2460844 7.1721865 +24.454921 1.116076386 -0.5 17 2460845 7.2937691 +24.205258 1.098908664 -0.4 18 2460846 7.4118098 +23.929996 1.081611984 -0.4 19 2460847 7.5262756 +23.631166 1.064230860 -0.3 20 2460848 7.6371407 +23.310757 1.046804884 -0.3 21 2460849 7.7443845 +22.970719 1.029369223 -0.2 22 2460850 7.8479887 +22.612960 1.011955125 -0.2 23 2460851 7.9479359 +22.239347 0.994590425 -0.1 24 2460852 8.0442079 +21.851704 0.977300026 +0.0 25 2460853 8.1367850 +21.451821 0.960106358 +0.0 26 2460854 8.2256445 +21.041450 0.943029801 +0.1 27 2460855 8.3107604 +20.622316 0.926089070 +0.1 28 2460856 8.3921025 +20.196123 0.909301571 +0.2 29 2460857 8.4696354 +19.764556 0.892683735 +0.2 30 2460858 8.5433178 +19.329291 0.876251328 +0.3 xx 2460859 8.6131020 +18.892001 0.860019758 +0.3 xx 2460860 8.6789332 +18.454360 0.844004365 +0.4 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================