The Solar System at your Fingertips
Major Bodies » 

Mars

Available Resources

Mars Sky Charts and Coordinates

This is a simplified sky chart, showing where Mars is now with respect to the brightest stars and constellations.

More advanced sky charts are available on TheSkyLive for this object: 1) the Online Planetarium which is interactive and allows to select dates and additional objects to visualize; and 2) the Live Position and Data Tracker which provides the highest precision position data and features deep sky imagery from the Digitized Sky Survey.

Mars in Sagittarius on April, 22 2018
High Precision Live Sky Chart
19h 22m 12s
-23° 04’ 31”
-0.16
 = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Mars Rise and Set Times

Today's Mars rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the local timezone Europe/London.

Azimuth: 113.1°
Max altitude: 15.4°
Azimuth: 246.9°

Mars Ephemeris

The following table lists the ephemerides of Mars computed for the past and next 7 days, with a 24 hours interval. Click on each row of the table to locate Mars in our Online Planetarium at the chosen date.

Date MagnitudeMag Right AscensionR.A. DeclinationDec. Constellation
2018 Apr 15 -0.01 19h 06m 42s -23° 17’ 48” Sagittarius
2018 Apr 16 -0.03 19h 08m 57s -23° 16’ 05” Sagittarius
2018 Apr 17 -0.05 19h 11m 12s -23° 14’ 17” Sagittarius
2018 Apr 18 -0.07 19h 13m 26s -23° 12’ 28” Sagittarius
2018 Apr 19 -0.09 19h 15m 38s -23° 10’ 32” Sagittarius
2018 Apr 20 -0.12 19h 17m 50s -23° 08’ 35” Sagittarius
2018 Apr 21 -0.14 19h 20m 02s -23° 06’ 34” Sagittarius
2018 Apr 22 -0.16 19h 22m 12s -23° 04’ 31” Sagittarius
2018 Apr 23 -0.18 19h 24m 20s -23° 02’ 23” Sagittarius
2018 Apr 24 -0.21 19h 26m 30s -23° 00’ 14” Sagittarius
2018 Apr 25 -0.23 19h 28m 36s -22° 58’ 01” Sagittarius
2018 Apr 26 -0.25 19h 30m 43s -22° 55’ 46” Sagittarius
2018 Apr 27 -0.28 19h 32m 48s -22° 53’ 30” Sagittarius
2018 Apr 28 -0.30 19h 34m 54s -22° 51’ 12” Sagittarius

Distance of Mars from Earth

The following chart shows the distance of Mars from Earth as a function of time. Distance data is measured in Astronomical Units and sampled with a 2 days interval.

The reported distances might be inaccurate around the times of closest approach for objects passing extremely close to Earth. The value of the distance of Mars is also available as a real time updated value in the Live Position and Data Tracker.

Distance of Mars from Earth between January 2013 and December 2075

Light Curve of Mars

The following chart is the predicted light curve (visual magnitude as a function of time) of Mars, according to the most recent ephemerides data. Magnitude data is sampled with a 2 days interval and there might be inaccuracies for objects changing brightness very rapidly during the course of a few days. For comets there could be large discrepancies between the observed and predicted brightness because of their highly dynamic behaviour.

Predicted magnitude of Mars between January 2013 and December 2075

Mars Physical Data

The following shows the known values of the most important physical parameters of Mars. Source: JPL Small-Body Database

Physical Parameter Value Relative to Earth
Diameter 6779 km 0.5320
Mass 0.641693 x 1024 kg 0.1074
Density 3.934 gr/cm3 0.7135
Escape Velocity 5.03 km/s 0.4495
Sideral Rotation 24.6230 hours 1.0288
Absolute Magnitude -1.52
Geometric Albedo 0.15