Sahar

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Sahar
Screen Shot 2017-08-27 at 11.04.38 PM.png
Sahar as seen from space.
Orbital characteristics
Epoch J2000
Aphelion 152 100 000 km
(1.016 73 AU)
Perihelion 147 095 000 km
(0.983 2687 AU
149 598 023 km
(1.000 001 018 AU
Eccentricity 0.016 7086
365.256 363 004 days
(1.000 017 420 96 yr)
29.78 km/s
(107 200 km/h)
358.617 deg
Inclination 7.155 deg to Sun's equator; 1.57869 deg to invariable plane; 0.00005 deg to J2000 ecliptic
-11.260 64 deg to J2000 ecliptic
114.207 83 deg
Satellites
Physical characteristics
Mean radius
6 371.0 km
Equatorial radius
6 378.1 km
Polar radius
6 356.8 km
Flattening 0.003 3528
1/298.257222101
Circumference
  • 40 075.017 km (equatorial)
  • 40 007.86 km (meridional)
  • 510 072 000 km2
  • 0.6em(148 940 000 km2(29.2%) land
  • 0.6em(361 132 000 km2(70.8%) water)
Volume 1.083 21 × 10^12 km3
Mass

5.972 37 x 10^24 kg


(3.0 x 10^-6 solar mass)
Mean density
5.514 g/cm3
9.807 m/s2
g
0.3307
11.186 km/s
0.997 269 68 d
(23h 56m 4.100s)
Wikipedia:Equatorial rotation velocity
1674.4 km/h (465.1 m/s)
23.439811°
Albedo 0.367 geometric 0.306 Bond
Surface temp. min mean max
Kelvin 184 288 330
Celsius −89.2°C 15°C 56.7°C
Atmosphere
Surface pressure
101.325 kPa (at MSL)
Composition by volume
  • 78.08% nitrogen (N2) (dry air)
  • 20.95% oxygen (O2)
  • 0.930% argon
  • 0.039% carbon dioxide
  • ~ 1% water vapor (climate-variable)

Sahar is the second planet from Harkis and the only planet known to harbor life. It is the densest planet in the Harkis system and the largest of the three terrestrial planets.