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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 October, 18 2017
High Precision Live Sky Chart
11h 49m 53s
+02° 21’ 26”
1.82
 = 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: 87.6°
Max altitude: 40.9°
Azimuth: 272.4°

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 Oct 11 1.83 11h 33m 37s +04° 07’ 06” Leo
2017 Oct 12 1.83 11h 35m 57s +03° 52’ 04” Leo
2017 Oct 13 1.83 11h 38m 17s +03° 37’ 00” Virgo
2017 Oct 14 1.82 11h 40m 36s +03° 21’ 55” Virgo
2017 Oct 15 1.82 11h 42m 55s +03° 06’ 48” Virgo
2017 Oct 16 1.82 11h 45m 15s +02° 51’ 42” Virgo
2017 Oct 17 1.82 11h 47m 34s +02° 36’ 34” Virgo
2017 Oct 18 1.82 11h 49m 53s +02° 21’ 26” Virgo
2017 Oct 19 1.82 11h 52m 11s +02° 06’ 19” Virgo
2017 Oct 20 1.82 11h 54m 32s +01° 51’ 10” Virgo
2017 Oct 21 1.82 11h 56m 50s +01° 36’ 01” Virgo
2017 Oct 22 1.81 11h 59m 09s +01° 20’ 52” Virgo
2017 Oct 23 1.81 12h 01m 28s +01° 05’ 43” Virgo
2017 Oct 24 1.81 12h 03m 47s +00° 50’ 32” 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