Terra (Hoennverse)

Terra

"The Blue Marble" photograph of Terra, taken from Apollo 17
Designations
Alternative names	Earth, Gaia, Chiku
Orbital characteristics
Epoch J2000.0
Aphelion	152,098,232 km 1.01671388 AU
Perihelion	147,098,290 km 0.98329134 AU
Semi-major axis	149,598,261 km 1.00000261 AU
Eccentricity	0.01671123
Orbital period	365.256363004 days 1.000017421 yr
Average orbital speed	29.78 km/s107,200 km/h
Mean anomaly	357.51716°
Inclination	7.155° to Sol's equator 1.57869° to invariable plane
Longitude of ascending node	348.73936°
Argument of perihelion	114.20783°
Satellites	1 natural (Luna), 8,300+ artificial (as of 1 March 2001[ref])
Physical characteristics
Mean radius	6,371.0 km
Equatorial radius	6,378.1 km
Polar radius	6,356.8 km
Flattening	0.0033528
Circumference	40,075.017 km (equatorial)
Surface area	510,072,000 km2 148,940,000 km2 land (29.2 %) 361,132,000 km2 water (70.8 %)
Volume	1.08321×1012 km3
Mass	5.9736×1024 kg 3.0×10−6 Suns
Mean density	5.515 g/cm3
Equatorial surface gravity	9.780327 m/s2 0.99732 g
Escape velocity	11.186 km/s
Sidereal rotation period	0.99726968 d 23h 56m 4.100s
Equatorial rotation velocity	1674.4 km/h
Axial tilt	23°26'21".4119
Albedo	0.367 (geometric) 0.306 (Bond)
Surface temp. min mean max Kelvin 184 K 287.2 K 330 K Celsius −89.2 °C 14 °C 56.7 °C
Atmosphere
Surface pressure	101.325 kPa (MSL)
Composition	78.08% nitrogen (N2)About 1% water vapor (varies with climate)

Terra (Hoennverse) (Hoennese: ‮地球‬, translit.: Chiku), parallel dimension Planet Earth, not to be confused with an altogether more reprehensible parallel Earth, formerly linked to Micras via a rift in space and time into which the Hoennese managed to install a tunnel like structure facilitating two-way traffic; which rift has now closed, an event the Hoennese diaspora on Micras refer to as Severance.

Context

The existence of portals, dimensional rifts in space-time linking disparate worlds, have occurred not infrequently in the history of Micras and have facilitated the passage of humans between worlds on several occasions, including but not limited to the ill-fated attempt to settle the world of Giess. Some have conjectured that these porous gaps in reality facilitated the spread of the human species across disparate worlds in the absence of practicable and reliable faster than light technology.

That this Terra is notably different to the Earth encountered in lore has cast doubt on the veracity of the source material for those other accounts but also raised the intriguing possibility that Micras and Terra exist both within a "multiverse" where the every action has a corresponding set of every possible alternative action, leading to a cascade of near infinite alternative realities coexisting in different dimensional planes.

Political situation on Terra

A map of the countries of Terra. Some colored areas refer to territories or colonies of countries, rather than sovereign states in their own right.

TBC