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~ EPAPHUS ~

Third Moon of the Planet Thoriam,
the Second Planet of
the Epsilon Eridani System





Distance from Earth: 10.5 light-years

Distance from sun: 72 million miles
Distance from Thoriam: 594,430 miles
Diameter: 5,828 miles (0.74 Earth's diameter)
Solar Year: 218.503 earth days (26.58 local days)
Solar Day: 8.22 earth days
Gravity: 0.78 g
Axil Tilt: 18°
Sister Moons: 4 major; Hephaestus, Arcus, Dardanus, Harmonia
Notes: 65% surface water
.......Colonised in 3235 A.D.
.......Terraformed during the 33rd Century.



                                                                                   





circumference at equator: 18,310 miles








The Moons of
~ THORIAM ~




Hephaestus

Distance from Thoriam: 134,780 miles
... from Epaphus: 459,700 to 729,200 miles
Orbital Period: 21:55 earth hours
                 (0.11 Epaphian “longday”s)
Diameter: 2,119 miles
Arc Diameter*: 0°10'-0°15'
Gravity: 0.18 g

Arcas

Distance from Thoriam: 266,700 miles
... from Epaphus: 327,700 to 861,100 miles
Orbital Period: 2.74 earth days
                 (0.33 Epaphian “longday”s)
Diameter: 3,178 miles
Arc Diameter*: 0°12'-0°34'
Gravity: 0.28 g

Epaphus

Distance from Thoriam: 594,430 miles
Orbital Period: 7.92† earth days
  †Note: not exactly the same as the Epaphian “longday” which is about 8.22 earth days.
Diameter: 5,828 miles

Gravity: 0.78 g

Dardanus

Distance from Thoriam: 890,160 miles
... from Epaphus: 295,700 to 1,485,000 miles
Orbital Period: 16.44 earth days
                 (about 2 Epaphian “longday”s)
Diameter: 2,861 miles
Arc Diameter*: 0°06'-0°33'
Gravity: 0.29 g

        Thoriam

Distance from sun: 72 million miles
Orbital Period: 218.503 earth days
Rotation Period: 22:48 earth hours
Diameter: 110,056 miles
Gravity: 4.2 g
Axil Tilt: 18°
Moons: 5 major, 65 minor
Arc Diameter*: 6°30'

Harmonia

Distance from Thoriam: 1,188,370 miles
... from Epaphus: 593,900 to 1,783,000 miles
Orbital Period: 24.66 days
                 (about 3 Epaphian “longday”s)
Diameter: 2,384 miles
Arc Diameter*: 0°05'-0°14'
Gravity: 0.22 g

  The Earth
for comparison

* “Arc Diameter” refers to the visual size of the moon (or the planet Thoriam) as seen from the surface of Epaphus.
For comparison, the Earth's Moon has an Arc Diameter of 0°30' as seen from Earth.









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