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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 Virgo on December, 13 2017
High Precision Live Sky Chart
14h 00m 50s
-11° 14’ 11”
1.62
 = 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: 101.2°
Max altitude: 27.3°
Azimuth: 258.8°

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
2017 Dec 06 1.66 13h 44m 08s -09° 39’ 57” Virgo
2017 Dec 07 1.65 13h 46m 31s -09° 53’ 38” Virgo
2017 Dec 08 1.65 13h 48m 52s -10° 07’ 14” Virgo
2017 Dec 09 1.64 13h 51m 15s -10° 20’ 45” Virgo
2017 Dec 10 1.63 13h 53m 39s -10° 34’ 14” Virgo
2017 Dec 11 1.63 13h 56m 03s -10° 47’ 38” Virgo
2017 Dec 12 1.62 13h 58m 26s -11° 00’ 56” Virgo
2017 Dec 13 1.62 14h 00m 50s -11° 14’ 11” Virgo
2017 Dec 14 1.61 14h 03m 14s -11° 27’ 20” Virgo
2017 Dec 15 1.60 14h 05m 38s -11° 40’ 27” Virgo
2017 Dec 16 1.60 14h 08m 02s -11° 53’ 26” Virgo
2017 Dec 17 1.59 14h 10m 27s -12° 06’ 23” Virgo
2017 Dec 18 1.58 14h 12m 51s -12° 19’ 13” Virgo
2017 Dec 19 1.58 14h 15m 15s -12° 31’ 59” Virgo

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