Ravla
Ravla
Astrographical Information
Galaxy
Milky Way
Galactic ArmOrion
SystemCraehlil System
OrbitingCraehlil
Orbital positionSixth Planet
Orbital Distance7.98 AU (1,194,008,800 km)
Orbital characteristics
Aphelion 8.21 AU (1,228,365,750 km)
Perihelion 7.75 AU (1,159,651,850 km)
Semi-major axis 7.98 AU (1,194,008,800 km)
Eccentricity 0.065
Orbital period (sidereal) 7,727.3 days
Average orbital speed 6.25 km/s
Mean anomaly 124.3°
Inclination- 2.4° – Craehlil's equator
- 1.7° – invariable plane
- 3.1° – J2000 ecliptic
Longitude of ascending node 197.4°
Time of perihelion 3,887.1 days
Argument of perihelion 84.9°
Moon(s) 27
Physical Information
Diameter 136,180 km (84,623.1 mi)
Mean radius 68,090 km (42,311.5 mi)
Equatorial radius 69,300 km (43,056.5 mi)
Polar radius 66,880 km (41,582.6 mi)
Flattening 0.066
Circumference- 434,860 km; equatorial
- 420,023 km; meridional
Area 58,360,000,000 km²
Volume 1.322 × 10¹⁵ km³
Mass 2.28 × 10²⁷ kg
Mean density 1.22 g/cm³
Gravity (1 bar level) 21.4 m/s²
Moment of inertia factor 0.255
Escape velocity 53.1 km/s
Synodic rotation period 14.8 Hours
Sidereal rotation period 14.3 Hours
Equatorial rotation velocity 289.7 m/s
Axial tilt 19.3°
Axial Precession 17,800 years
Albedo- 0.27 geometric
- 0.19 Bond
Temperature 52–118 K
Atmospheric Temperature- -221°C (-365.8°F) Min
- -191°C (-311.8°F) Mean
- -155°C (-247°F) Max
Absorbed dose rate (cloud tops) 2.7 μGy/h
Equivalent dose rate 3.9 μSv/h
Apparent magnitude +3.9 to +6.1
Absolute magnitude (H) -7.1
Atmosphere
Atmospheric pressure
Estimated: 0.9 MPa (1 bar level)
Composition by volume- 84.2% Hydrogen
- 13.9% Helium
- 1.0% Methane
- 0.4% Ammonia
- 0.3% Hydrocarbons (complex trace volatiles)
- 0.2% Noble gases (Argon, Xenon, trace Neon)
Comments