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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 Pisces on January, 23 2017
High Precision Live Sky Chart
23h 45m 33s
-02° 07’ 13”
1.05
 = 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: 92.1°
Max altitude: 36.4°
Azimuth: 267.9°

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
2017 Jan 16 1.00 23h 26m 25s -04° 18’ 03” Aquarius
2017 Jan 17 1.01 23h 29m 09s -03° 59’ 25” Aquarius
2017 Jan 18 1.01 23h 31m 54s -03° 40’ 45” Aquarius
2017 Jan 19 1.02 23h 34m 39s -03° 22’ 03” Aquarius
2017 Jan 20 1.03 23h 37m 23s -03° 03’ 20” Pisces
2017 Jan 21 1.04 23h 40m 06s -02° 44’ 39” Pisces
2017 Jan 22 1.04 23h 42m 51s -02° 25’ 55” Pisces
2017 Jan 23 1.05 23h 45m 33s -02° 07’ 13” Pisces
2017 Jan 24 1.06 23h 48m 17s -01° 48’ 29” Pisces
2017 Jan 25 1.07 23h 51m 01s -01° 29’ 47” Pisces
2017 Jan 26 1.07 23h 53m 44s -01° 11’ 03” Pisces
2017 Jan 27 1.08 23h 56m 27s -00° 52’ 22” Pisces
2017 Jan 28 1.09 23h 59m 11s -00° 33’ 41” Pisces
2017 Jan 29 1.09 00h 01m 54s -00° 15’ 00” Pisces

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