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 = 2024 Apr 17 - Wed Local Time = 19:37:02 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2460418.31738426 =========================================================================== Geocentric Equatorial Coordinates of Mars Right Ascension = 23h 25m 31.50s = 23.4254162h = 351.3812430° Declination = -05° 05' 19.89" = -5.088859° True Distance = 2.026406164 AU = 303.146047 Mkm = 188.366221 Mmi Visual Magnitude = +1.2 Angular Diameter = 3.316" Horizontal Parallax = 4.340" = 0.072330' = 0.001205493° Light/Signal Time = 16m 51.19s =========================================================================== 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 = 23h 25m 31.30s = 23.4253596h = 351.3803943° Topocentric Decl = -05° 05' 22.90" = -5.089694° Local Hour Angle = -19h 10m 08.26s = -287.53440134067° (W=Negative) Local Sidereal Time = 04h 15m 23.038s = 4.256399530h = 63.845992949° Azimuth = 74.19477° (Measured clockwise from S=0°) = 254.19477° (Measured clockwise from N=0°) Direction = WSW Altitude = +9.21461° (Above Local Horizon - No refractions applied) =========================================================================== Mars Ephemeris Table For Each Day Of Apr. 2024 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 2460399 22.4899972 -10.782971 2.100050138 +1.2 xx 2460400 22.5391636 -10.499892 2.096222187 +1.2 xx 2460401 22.5882426 -10.215208 2.092396578 +1.2 xx 2460402 22.6372355 -09.928975 2.088573071 +1.2 1 2460403 22.6861429 -09.641248 2.084751412 +1.2 2 2460404 22.7349659 -09.352088 2.080931343 +1.2 3 2460405 22.7837050 -09.061551 2.077112623 +1.2 4 2460406 22.8323610 -08.769695 2.073295053 +1.2 5 2460407 22.8809349 -08.476579 2.069478502 +1.2 6 2460408 22.9294280 -08.182259 2.065662931 +1.2 7 2460409 22.9778419 -07.886789 2.061848415 +1.2 8 2460410 23.0261784 -07.590225 2.058035136 +1.2 9 2460411 23.0744392 -07.292626 2.054223364 +1.2 10 2460412 23.1226258 -06.994048 2.050413428 +1.2 11 2460413 23.1707395 -06.694551 2.046605669 +1.2 12 2460414 23.2187817 -06.394192 2.042800412 +1.2 13 2460415 23.2667538 -06.093027 2.038997940 +1.2 14 2460416 23.3146574 -05.791111 2.035198486 +1.2 15 2460417 23.3624945 -05.488497 2.031402225 +1.2 16 2460418 23.4102671 -05.185236 2.027609279 +1.2 17 2460419 23.4579774 -04.881378 2.023819719 +1.2 18 2460420 23.5056278 -04.576972 2.020033566 +1.1 19 2460421 23.5532208 -04.272067 2.016250795 +1.1 20 2460422 23.6007590 -03.966711 2.012471333 +1.1 21 2460423 23.6482449 -03.660952 2.008695059 +1.1 22 2460424 23.6956812 -03.354837 2.004921801 +1.1 23 2460425 23.7430705 -03.048414 2.001151334 +1.1 24 2460426 23.7904153 -02.741732 1.997383384 +1.1 25 2460427 23.8377179 -02.434838 1.993617621 +1.1 26 2460428 23.8849803 -02.127785 1.989853672 +1.1 27 2460429 23.9322045 -01.820624 1.986091118 +1.1 28 2460430 23.9793920 -01.513408 1.982329510 +1.1 29 2460431 0.0265444 -01.206192 1.978568378 +1.1 30 2460432 0.0736629 -00.899029 1.974807242 +1.1 xx 2460433 0.1207490 -00.591977 1.971045636 +1.1 xx 2460434 0.1678041 -00.285088 1.967283121 +1.1 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================