Observation data
Mean distance
from Polysiton
879,722,800 km (5.8805 AU)
Visual brightness
from Polysiton
Absolute magnitude 1.0259
Metallicity 1.24 ([Fe/H]), X = .58 Y = .237 Z = .182
Angular size
Orbital characteristics
Galactic period
Physical characteristics
Mean radius 1.135 x 109 m
Equatorial radius 1.1364 x 109 m
Flattening .00176
Surface area 1.6228 x 1013 km2 1.6228 x 1019 m2
Volume 6.1375 x 1018 km3 6.1375 x 1027 m3
Mass 4.8845 x 1030 kg
Density 730 kg/m3 (Average)
1.675 x 104 kg/m3 (core)
Equatorial surface gravity
Escape velocity
(from the surface)
Temperature Core:2.1 x 107 K
Photosphere: 10863K
Luminosity 1.27834*1028 W
Age 9.81 x 108 years
Rotation characteristics
Sidereal rotation period (at equator)
Rotation velocity (at equator)
Photospheric composition (by mass)
Hydrogen 88.40%
Helium 10.48%
Oxygen 0.52%
Carbon 0.12%
Iron 0.1%
Neon 0.09%
Nitrogen 0.09%
Silicon 0.07%
Magnesium 0.05%
Sulfur 0.04%

Lampardion is the star to which the planet Polysiton is assigned to. It is a star of the main sequence in Class B, and hence its luminosity follows the approximate relationship with mass (luminosity ratio is similar to the ratio between the mass raised by 3.9). It has 6 planets orbiting around it in this order:

  1. Mauron (Lampardion I)
  2. Polysiton (Lampardion II)
  3. Neoptolemaios  (Lampardion III)
  4. Kleistos  (Lampardion IV)
  5. Euron  (Lampardion V)
  6. Eschate Meizon (Lampardion VI)

Of these, Mauron, Polysiton, and Neoptolemaios are known to be able to support life: However, Polysiton is the most fertile of them all. Most of Mauron's lifeforms are in the Archaea kingdom, with Triskelekorakes the predominant (and probably only) multicellular species there, and Neoptolemaios's climate is not suited for agriculture with the current technologies, although wild flora and fauna exist.

Lampardion is a large main sequence star, boasting a mass in par with many subgiants, without having a huge radius of a giant. As a result, Lampardion is very dense, particularly ironic for a small, young star whose mass is chiefly derived from hydrogen.