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Martian Statistics
|
Earth and Mars Compared |
| |
Earth |
Mars |
| Equatorial diameter (Km) |
12756 |
6794 |
| Density (kg/m(2)) |
5517 |
3933 |
| Mass (Earth=1) |
1 |
0.107 |
| Surface gravity (Earth=1) |
1 |
0.38 |
| Escape velocity (km/s) |
11.2 |
5.03 |
| Mean distance from sun (AU) |
1 |
1.5236915 |
| Mean distance from sun (miles) |
9.3x10(7) |
1.4136x10(8) |
| Mean distance from sun (10(6) Km) |
149.6 |
227.9 |
| Orbital period (Earth years) |
1 |
1.88 |
| Orbital period (Earth days) |
365.24 |
686.95 |
| Orbital velocity (Km/sec) |
29.79 |
24.13 |
| Average Surface Temperature (K) |
280 |
210 |
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2001.
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Information about Mars at moment of closest approach on 27
Aug 2003
(Julian day number 2452878.38966)
|
Minimum distance between Earth and Mars |
|
Date (UT) |
Time (UT) |
Dist (AU) |
Dec |
Elevation |
|
2003 Aug 27
|
09:51 |
0.3727
|
-15° 42'
|
173.2° |
|
Local Information
Apparent topocentric coordinates
for the epoch of date |
| Right ascension: |
22h 39m 25.31s |
| Declination: |
-15° 40' 23.4" |
| Constellation: |
Aquarius |
| Altitude: |
45° 47' 36" |
| Azimuth: |
220° 22' 14" |
| Rise: |
19h 15m 27s |
| Transit: |
0h 59m 35s |
| Set: |
6h 38m 48s |
|
Star atlas chart numbers |
| Herald-Bobroff Astroatlas |
Chart C-58 |
| Millennium Star Atlas |
Charts 1355-1356 (Vol III) |
| Sky Atlas 2000.0 |
Chart 17 |
| Uranometria 2000 |
Chart 302, Vol 2 |
|
Geocentric Information
Apparent geocentric coordinates for the epoch of date |
| Right ascension: |
22h 39m 26.037s |
| Declination: |
-15° 40' 10.72" |
| True distance: |
0.3727386 AU (56 million km) |
| Horizontal parallax: |
23.59" |
|
Heliocentric Information
Ecliptic coordinates for the epoch of date |
| Ecliptic longitude |
333° 50' 48.4" |
| Ecliptic latitude |
-1° 47' 33.4" |
| Radius vector |
1.3812397 AU (207 million km) |
|
Physical Information |
| Magnitude |
-2.9 |
| Phase |
0.998 |
| Phase angle |
5.1° |
| Elongation |
173.0° |
| Diameter |
25.11" |
| Light time |
0h 3m 6.0s |
| Centre of disk at long 299.4° |
lat -18.8° |
| Position angle of the north pole |
346.1° |
| Position angle of the bright limb |
138.9° |
| The South pole is tilted towards the Earth |
| The South pole is sunlit |
| Mass |
6.4191e+023 kg (0.1074 x Earth) |
| Mean equatorial radius |
3397 km (0.5326 x Earth) |
| Maximum angular diameter |
17.9" |
| Minimum geocentric distance |
0.524 AU |
| Geometric flattening |
0.006476 |
| Sidereal rotation period |
1d 0h 37m 23s |
| Mean density |
3.94 g/cm^3 |
| Geometric albedo |
0.150 |
|
Events for Wednesday 27 Aug 2003
all times GMT |
| 01:00 |
Mars transits the meridian |
| 01:11 |
Pluto sets |
| 02:29 |
Saturn rises |
| 05:47 |
Moon rises |
| 06:09 |
Jupiter rises |
| 06:23 |
Sun rises |
| 06:34 |
Venus rises |
| 06:39 |
Mars sets |
| 07:59 |
Mercury rises |
| 09:03 |
Saturn transits the meridian |
| 12:26 |
Moon transits the meridian |
| 12:28 |
Jupiter transits the meridian |
| 12:40 |
Sun transits the meridian |
| 12:51 |
Venus transits the meridian |
| 13:58 |
Mercury transits the meridian |
| 15:37 |
Saturn sets |
| 18:46 |
Jupiter sets |
| 18:58 |
Sun sets |
| 19:01 |
Moon sets |
| 19:08 |
Venus sets |
| 19:15 |
Mars rises |
| 19:56 |
Mercury sets |
|
