Mars
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.
High Precision Live Sky Chart
Mars Rise and Set Times
Today's Mars rise, transit and set times from Greenwich, United Kingdom [change]. All times are relative to the Europe/London timezone.
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 | Right AscensionR.A. | DeclinationDec. | MagnitudeMag | Apparent DiameterDiameter | Constellation |
|---|---|---|---|---|---|
| 2019 Apr 14 | 04h 27m 41s | +22° 45’ 03” | 1.54 | 4.4” | Taurus |
| 2019 Apr 15 | 04h 30m 29s | +22° 51’ 25” | 1.54 | 4.4” | Taurus |
| 2019 Apr 16 | 04h 33m 17s | +22° 57’ 37” | 1.55 | 4.4” | Taurus |
| 2019 Apr 17 | 04h 36m 07s | +23° 03’ 37” | 1.55 | 4.4” | Taurus |
| 2019 Apr 18 | 04h 38m 57s | +23° 09’ 24” | 1.56 | 4.4” | Taurus |
| 2019 Apr 19 | 04h 41m 45s | +23° 15’ 02” | 1.57 | 4.3” | Taurus |
| 2019 Apr 20 | 04h 44m 35s | +23° 20’ 27” | 1.57 | 4.3” | Taurus |
| 2019 Apr 21 | 04h 47m 25s | +23° 25’ 41” | 1.58 | 4.3” | Taurus |
| 2019 Apr 22 | 04h 50m 15s | +23° 30’ 44” | 1.58 | 4.3” | Taurus |
| 2019 Apr 23 | 04h 53m 04s | +23° 35’ 35” | 1.59 | 4.3” | Taurus |
| 2019 Apr 24 | 04h 55m 54s | +23° 40’ 15” | 1.60 | 4.3” | Taurus |
| 2019 Apr 25 | 04h 58m 45s | +23° 44’ 44” | 1.60 | 4.3” | Taurus |
| 2019 Apr 26 | 05h 01m 35s | +23° 49’ 00” | 1.61 | 4.2” | Taurus |
| 2019 Apr 27 | 05h 04m 24s | +23° 53’ 04” | 1.61 | 4.2” | Taurus |
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.
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.
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 |