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 = 2026 Aug 14 - Fri Local Time = 00:17:17 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2461266.51200231 =========================================================================== Geocentric Equatorial Coordinates of Mars Right Ascension = 06h 07m 40.38s = 6.1278827h = 91.9182405° Declination = +23° 41' 55.40" = +23.698722° True Distance = 1.940844784 AU = 290.346247 Mkm = 180.412794 Mmi Visual Magnitude = +1.3 Angular Diameter = 3.462" Horizontal Parallax = 4.531" = 0.075518' = 0.001258637° Light/Signal Time = 16m 08.49s =========================================================================== 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 = 06h 07m 40.29s = 6.1278575h = 91.9178621° Topocentric Decl = +23° 41' 51.35" = +23.697599° Local Hour Angle = +10h 32m 03.65s = 158.01519763077° (W=Negative) Local Sidereal Time = 16h 39m 43.934s = 16.662203980h = 249.933059694° Azimuth = 158.52861° (Measured clockwise from S=0°) = 338.52861° (Measured clockwise from N=0°) Direction = NNW Altitude = -20.52764° (Invisible - Below Local Horizon) =========================================================================== Mars Ephemeris Table For Each Day Of Aug. 2026 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 2461251 5.3738993 +23.216724 2.007705284 +1.3 xx 2461252 5.4229398 +23.272402 2.003696375 +1.3 xx 2461253 5.4719331 +23.324642 1.999648282 +1.3 xx 2461254 5.5208766 +23.373450 1.995560493 +1.3 1 2461255 5.5697681 +23.418833 1.991432460 +1.3 2 2461256 5.6186050 +23.460799 1.987263616 +1.3 3 2461257 5.6673849 +23.499358 1.983053378 +1.3 4 2461258 5.7161052 +23.534522 1.978801167 +1.3 5 2461259 5.7647629 +23.566305 1.974506419 +1.3 6 2461260 5.8133547 +23.594725 1.970168613 +1.3 7 2461261 5.8618768 +23.619798 1.965787286 +1.3 8 2461262 5.9103249 +23.641543 1.961362059 +1.3 9 2461263 5.9586944 +23.659977 1.956892658 +1.3 10 2461264 6.0069807 +23.675116 1.952378925 +1.3 11 2461265 6.0551797 +23.686977 1.947820812 +1.3 12 2461266 6.1032876 +23.695576 1.943218369 +1.3 13 2461267 6.1513014 +23.700931 1.938571711 +1.3 14 2461268 6.1992185 +23.703062 1.933880986 +1.3 15 2461269 6.2470365 +23.701994 1.929146342 +1.3 16 2461270 6.2947531 +23.697750 1.924367908 +1.3 17 2461271 6.3423660 +23.690358 1.919545776 +1.3 18 2461272 6.3898727 +23.679845 1.914680002 +1.3 19 2461273 6.4372709 +23.666236 1.909770601 +1.3 20 2461274 6.4845580 +23.649560 1.904817548 +1.3 21 2461275 6.5317315 +23.629844 1.899820787 +1.3 22 2461276 6.5787890 +23.607114 1.894780224 +1.3 23 2461277 6.6257279 +23.581398 1.889695733 +1.3 24 2461278 6.6725459 +23.552721 1.884567148 +1.3 25 2461279 6.7192407 +23.521110 1.879394261 +1.3 26 2461280 6.7658101 +23.486591 1.874176820 +1.3 27 2461281 6.8122521 +23.449190 1.868914523 +1.3 28 2461282 6.8585648 +23.408932 1.863607021 +1.3 29 2461283 6.9047464 +23.365847 1.858253922 +1.3 30 2461284 6.9507953 +23.319963 1.852854797 +1.3 31 2461285 6.9967095 +23.271312 1.847409202 +1.3 xx 2461286 7.0424869 +23.219927 1.841916689 +1.3 xx 2461287 7.0881251 +23.165846 1.836376831 +1.3 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================