Mars

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About Mars

Mars is a world of ancient mysteries and future possibilities. Known as the Red Planet due to iron oxide on its surface, Mars has the largest volcano in the solar system (Olympus Mons) and a canyon system (Valles Marineris) that stretches across the entire planet. Evidence suggests Mars once had flowing water and a thicker atmosphere, making it a prime target in the search for past or present life. Today, Mars has polar ice caps and experiences seasons similar to Earth.

Quick Facts

  • Known as the Red Planet
  • Home to the largest volcano in the solar system
  • Has evidence of ancient water flows
  • Two small moons: Phobos and Deimos
Mars - the Red Planet with ancient mysteries
NASA Facts Page

Planet Information

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Updated: 2026-04-28 19:22:27+08:00
Group Property Value
Current Position Right Ascension 00h53m11s
Current Position Declination +04°42'57"
Current Position Constellation Pisces
Current Position Azimuth 301.79711566075764°
Current Position Altitude -25.803340047368394°
Current Position Elongation 23.76963057705214°
Distance Information Earth Distance 2.2498617044322806 AU
Distance Information Sun Distance 1.3891280581270087 AU
Distance Information Earth Distance (km) 336574520.3525419 km
Visual Information Magnitude 1.2222542157898149
Visual Information Angular Diameter 4.154415591198422"
Visual Information Phase Angle 16.985336309319884°
Visual Information Illumination 97.81897756204522%
Orbital Elements Semi-major Axis 1.52371034 AU
Orbital Elements Eccentricity 0.0933941
Orbital Elements Inclination 1.84969142°
Orbital Elements Ascending Node 49.55953891°
Orbital Elements Argument of Perihelion 286.50210402°
Orbital Elements Mean Anomaly 353.4971662206917°
Orbital Elements Epoch J2000.0
Orbital Elements Orbital Period 686.98 days
Derived Quantities Mass 6.4171e+23 kg
Derived Quantities Radius 3389.5 km
Derived Quantities Density 3.9335 g/cm³
Derived Quantities Surface Gravity 3.71 m/s²
Derived Quantities Escape Velocity 5.03 km/s
Derived Quantities Perihelion 1.381404784135006 AU
Derived Quantities Aphelion 1.6660158958649942 AU
Derived Quantities Orbital Velocity 24.12958535269369 km/s
Derived Quantities Rotation Period 24.622 hours
Derived Quantities Axial Tilt 25.19°
Rise, Set, Transit Times Rise Time N/A
Rise, Set, Transit Times Transit Time N/A
Rise, Set, Transit Times Set Time N/A
Rise, Set, Transit Times Visible Duration 0.0 hours
Rise, Set, Transit Times Best Observation N/A
Rise, Set, Transit Times Quality Rating Unknown

Annual Trajectory Chart

Daily Altitude Chart

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