Promethia

Location

Bearing from Terra (relative to Core) (degrees):
Distance from Terra:	15.9 LY (4.9 psc)
Other location data:

Physical

Total Irradiation	(Terra = 1):	0.55
Distance from Star	(A.U):	0.83
	(million km):	124.73
Revolution	(Terran years):	1.3124
	(Terran days):	479.36
	(Local days):	370.76
Diameter	(Terra = 1):	0.86
	(km):	11,230.35
Mass	(Terra = 1):	0.74
Density	(g/cc):	5.96
	(Terra = 1):	1.08
Surface Gravity	(Terra = 1):	0.93
Length of Day	(hours):	31.03
Orbital Inclination	(degrees):	4.29
Moons	2
Other

System

Primary:	40 Eridani A
Spectral Class:	K1
Mass:	0.76
Luminosity:	0.38

NOTE: 40 Eridani B/C are a binary pair at an average separation of about 420 AU and a period of over 8,000 years. B is an A4 white dwarf with mass 0.43 and luminosity 0.0034; C is an M4 red dwarf with mass 0.16 and luminosity 0.0007. B and C orbit each other in a highly elliptical orbit that lasts about 252 years and swings between 21 and 49 AUs.

Planet	Name	Distance (million km)	Revolution (Terran days)	Revolution (Terran years)	Type	Mass (Terra=1)	Diameter (Terra = 1)	Rotation (hours)	Inclination (degrees)	Moons
1	Vulcan	44.42	102.31	0.28	Rocky	2.28	1.14	16.39	2.14	1
2	Hephaistos	71.07	207.06	0.57	Rocky	1.51	0.85	20.23	5.00	1
3	Promethia	124.73	479.36	1.3124	Habitable	0.74	0.86	31.03	4.29	2
4	Epimethia	230.98	1213.19	3.32	Rocky	1.61	0.80	19.40	1.60	1

Biology

Native animals are limited to aquatic forms -- the colonization of land by animals had not yet taken place when Humans colonized Promethia. Extensive plant life existed both on land and in the seas.

History/Society

Founded:	2083 (Third extrasolar planet colonized)
Social Characteristics:
Population:

Overview:
Promethia is known for the excellence of its seafood. Among wine connoisseurs, Promethian vintages are second only to those of Euphrates.

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copyright © 2003, Don Sakers
All rights reserved