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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 Aries on March, 28 2017
High Precision Live Sky Chart
02h 40m 18s
+15° 57’ 18”
1.45
 = 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: 74.0°
Max altitude: 54.5°
Azimuth: 286.0°

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 Mar 21 1.41 02h 20m 48s +14° 18’ 45” Aries
2017 Mar 22 1.42 02h 23m 35s +14° 33’ 15” Aries
2017 Mar 23 1.43 02h 26m 21s +14° 47’ 36” Aries
2017 Mar 24 1.43 02h 29m 08s +15° 01’ 50” Aries
2017 Mar 25 1.44 02h 31m 55s +15° 15’ 56” Aries
2017 Mar 26 1.44 02h 34m 44s +15° 29’ 52” Aries
2017 Mar 27 1.45 02h 37m 31s +15° 43’ 40” Aries
2017 Mar 28 1.45 02h 40m 18s +15° 57’ 18” Aries
2017 Mar 29 1.46 02h 43m 06s +16° 10’ 47” Aries
2017 Mar 30 1.46 02h 45m 56s +16° 24’ 07” Aries
2017 Mar 31 1.47 02h 48m 43s +16° 37’ 19” Aries
2017 Apr 01 1.47 02h 51m 33s +16° 50’ 21” Aries
2017 Apr 02 1.48 02h 54m 21s +17° 03’ 14” Aries
2017 Apr 03 1.48 02h 57m 11s +17° 15’ 56” Aries

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 January 2030

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 January 2030

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