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 Jan 24 - Sat Local Time = 03:42:47 Standard Time Std. Time Zone Offset = 00:00:00 Applied Delta T = +00:00:00 Astronomical JD TT = 2461064.65471065 =========================================================================== Geocentric Equatorial Coordinates of Mars Right Ascension = 20h 12m 08.88s = 20.2024654h = 303.0369810° Declination = -21° 00' 38.18" = -21.010606° True Distance = 2.388117183 AU = 357.257246 Mkm = 221.989361 Mmi Visual Magnitude = +1.2 Angular Diameter = 2.814" Horizontal Parallax = 3.682" = 0.061374' = 0.001022906° Light/Signal Time = 19m 51.68s =========================================================================== 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 = 20h 12m 08.81s = 20.2024464h = 303.0366963° Topocentric Decl = -21° 00' 39.59" = -21.010999° Local Hour Angle = -13h 22m 45.49s = -200.68954389589° (W=Negative) Local Sidereal Time = 06h 49m 23.317s = 6.823143493h = 102.347152392° Azimuth = 134.97683° (Measured clockwise from S=0°) = 314.97683° (Measured clockwise from N=0°) Direction = NW Altitude = -62.20962° (Invisible - Below Local Horizon) =========================================================================== Mars Ephemeris Table For Each Day Of Jan. 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 2461039 18.7862824 -23.873412 2.412584782 +1.2 xx 2461040 18.8418767 -23.815414 2.411836962 +1.2 xx 2461041 18.8974694 -23.752958 2.411070087 +1.2 xx 2461042 18.9530563 -23.686053 2.410284823 +1.2 1 2461043 19.0086333 -23.614712 2.409481769 +1.2 2 2461044 19.0641960 -23.538946 2.408661418 +1.2 3 2461045 19.1197401 -23.458766 2.407824149 +1.2 4 2461046 19.1752615 -23.374179 2.406970226 +1.2 5 2461047 19.2307566 -23.285196 2.406099814 +1.2 6 2461048 19.2862219 -23.191825 2.405213015 +1.2 7 2461049 19.3416539 -23.094075 2.404309888 +1.2 8 2461050 19.3970496 -22.991957 2.403390479 +1.2 9 2461051 19.4524060 -22.885484 2.402454834 +1.2 10 2461052 19.5077202 -22.774681 2.401503009 +1.2 11 2461053 19.5629888 -22.659576 2.400535073 +1.2 12 2461054 19.6182079 -22.540197 2.399551115 +1.2 13 2461055 19.6733736 -22.416571 2.398551236 +1.2 14 2461056 19.7284820 -22.288727 2.397535562 +1.2 15 2461057 19.7835290 -22.156693 2.396504235 +1.2 16 2461058 19.8385109 -22.020499 2.395457430 +1.2 17 2461059 19.8934236 -21.880177 2.394395353 +1.2 18 2461060 19.9482633 -21.735759 2.393318253 +1.2 19 2461061 20.0030263 -21.587278 2.392226428 +1.2 20 2461062 20.0577091 -21.434767 2.391120233 +1.2 21 2461063 20.1123088 -21.278260 2.390000079 +1.2 22 2461064 20.1668224 -21.117793 2.388866441 +1.2 23 2461065 20.2212477 -20.953402 2.387719846 +1.2 24 2461066 20.2755823 -20.785126 2.386560869 +1.2 25 2461067 20.3298245 -20.613004 2.385390125 +1.2 26 2461068 20.3839721 -20.437081 2.384208245 +1.2 27 2461069 20.4380234 -20.257398 2.383015863 +1.2 28 2461070 20.4919762 -20.074003 2.381813588 +1.2 29 2461071 20.5458285 -19.886938 2.380601973 +1.2 30 2461072 20.5995783 -19.696248 2.379381497 +1.2 31 2461073 20.6532239 -19.501973 2.378152539 +1.2 xx 2461074 20.7067639 -19.304154 2.376915372 +1.2 xx 2461075 20.7601977 -19.102829 2.375670169 +1.2 xx JD12_TT RA_Hr Decl_Deg Dist_AU VMag Day ===========================================================================