Mars 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.
Mars Ephemeris Statistics Referred to True Ecliptic and Equinox of Date Based on the NASA/JPL DE405 Ephemeris Model Local Date = 2025 Mar 14 - Fri Local Time = 06:26:41 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460748.76853009 =========================================================================== Geocentric Equatorial Coordinates of Mars Right Ascension = 07h 23m 46.37s = 7.3962149h = 110.9432235° Declination = +25° 13' 23.40" = +25.223166° True Distance = 0.975317447 AU = 145.905413 Mkm = 90.661421 Mmi Visual Magnitude = +0.1 Angular Diameter = 6.890" Horizontal Parallax = 9.017" = 0.150278' = 0.002504640° Light/Signal Time = 08m 06.69s =========================================================================== Local Topocentric Coordinates of Mars For Geographic Location: Longitude = -76.833611111° = -05h 07m 20.1s (W=Negative) Latitude = +42.752194444° Elevation = 0 m Topocentric RA = 07h 23m 45.89s = 7.3960808h = 110.9412123° Topocentric Decl = +25° 13' 18.33" = +25.221758° Local Hour Angle = +05h 24m 06.52s = 81.027171226334° (W=Negative) Local Sidereal Time = 12h 47m 52.412s = 12.797892234h = 191.968383517° Azimuth = 103.65672° (Measured clockwise from S=0°) = 283.65672° (Measured clockwise from N=0°) Direction = WNW Altitude = +23.13330° (Above Local Horizon - No refractions applied) =========================================================================== Mars Ephemeris Table For Each Day Of Mar. 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 2460733 7.2661072 +25.941632 0.842295343 -0.4 xx 2460734 7.2684263 +25.907077 0.850171760 -0.3 xx 2460735 7.2716168 +25.870911 0.858139978 -0.3 xx 2460736 7.2756664 +25.833162 0.866196281 -0.3 1 2460737 7.2805620 +25.793860 0.874336944 -0.3 2 2460738 7.2862899 +25.753032 0.882558269 -0.2 3 2460739 7.2928349 +25.710709 0.890856632 -0.2 4 2460740 7.3001809 +25.666920 0.899228528 -0.2 5 2460741 7.3083107 +25.621691 0.907670596 -0.1 6 2460742 7.3172067 +25.575045 0.916179637 -0.1 7 2460743 7.3268511 +25.527003 0.924752617 -0.1 8 2460744 7.3372259 +25.477579 0.933386658 -0.1 9 2460745 7.3483137 +25.426785 0.942079036 +0.0 10 2460746 7.3600973 +25.374629 0.950827164 +0.0 11 2460747 7.3725602 +25.321117 0.959628582 +0.0 12 2460748 7.3856862 +25.266251 0.968480940 +0.0 13 2460749 7.3994599 +25.210033 0.977381987 +0.1 14 2460750 7.4138660 +25.152463 0.986329558 +0.1 15 2460751 7.4288898 +25.093539 0.995321556 +0.1 16 2460752 7.4445171 +25.033259 1.004355948 +0.1 17 2460753 7.4607337 +24.971619 1.013430746 +0.1 18 2460754 7.4775259 +24.908613 1.022544007 +0.2 19 2460755 7.4948802 +24.844236 1.031693821 +0.2 20 2460756 7.5127833 +24.778480 1.040878307 +0.2 21 2460757 7.5312221 +24.711335 1.050095602 +0.2 22 2460758 7.5501839 +24.642790 1.059343858 +0.3 23 2460759 7.5696562 +24.572832 1.068621224 +0.3 24 2460760 7.5896268 +24.501447 1.077925835 +0.3 25 2460761 7.6100838 +24.428617 1.087255788 +0.3 26 2460762 7.6310157 +24.354321 1.096609133 +0.3 27 2460763 7.6524117 +24.278540 1.105983853 +0.4 28 2460764 7.6742611 +24.201252 1.115377873 +0.4 29 2460765 7.6965532 +24.122441 1.124789079 +0.4 30 2460766 7.7192771 +24.042091 1.134215358 +0.4 31 2460767 7.7424213 +23.960195 1.143654645 +0.4 xx 2460768 7.7659734 +23.876745 1.153104973 +0.5 xx 2460769 7.7899208 +23.791734 1.162564499 +0.5 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================